manufacturing process of a slatted slat blind

专利摘要:
PROCESS AND SYSTEM FOR THE MANUFACTURE OF SLIDING CURTAINS. A process and system for the manufacture of sliding curtains is provided, which includes the structure for carrying out several stages, including a first stage of helical wrapping of lath over a cylinder, thus forming a lath product. A second step includes moving the slat product from the cylinder to a platform. A third step includes rolling the slat product over a roll tube to form a sliding curtain. A fourth step includes moving the curtain from the platform to a heat treatment device.
公开号:BR112012026322B1
申请号:R112012026322-6
申请日:2011-04-15
公开日:2020-10-27
发明作者:Wendell B. Colson；Paul G. Swizcz；David P. Hartman；Michael Robert Stanczyk
申请人:Hunter Douglas Inc.；
IPC主号:

专利说明:

CONTINUITY
[001] The present application claims priority for U.S. Provisional Patent Application No. 61 / 325,169 filed on April 16, 2010, which is incorporated herein by reference. BACKGROUND OF THE INVENTION FIELD OF THE INVENTION
[002] The present invention relates to a sliding blind for architectural openings, such as doors and windows. More specifically, the present invention relates to a process for the manufacture of slatted slatted blinds to provide directional shading. DESCRIPTION OF RELATED TECHNIQUE
[003] Several systems are known to control the amount of light that can pass through an architectural opening, such as a door or a window. Such systems are often used as an aesthetic or functional door or window coverings.
[004] As discussed in International Patent Application PCT / US2009 / 064682, filed on November 17, 2009, entitled Slatted Roller Blind, which claimed priority for US Provisional Patent Application No. 61,199,551, filed on 18 November 2008, both are incorporated into this document by reference in their entirety, such a system is a sliding cover or blind, and another such system is a slatted blind system, which allows the directional shading of light. International Patent Application PCT / US2009 / 064682 discusses the shortcomings of such known options and suggests a new slatted sliding shutter, which is discussed in more detail below. In view of this, there is a need for a process and system to efficiently manufacture such slatted sliding shutters. SUMMARY OF THE INVENTION
[005] A process for the manufacture of sliding shutters is disclosed that includes the structure for carrying out several stages, comprising a first stage of fabric with helical winding slats on a drum, thus forming a product with slats. A second step includes moving the slatted product from the drum to a platform. A third step includes rolling the product with slats over a roll tube to form a sliding shutter. A fourth step includes moving the platform blind to a heat treatment device.
[006] Other aspects of modalities of the invention will become apparent from the drawings and the respective descriptions that follow. BRIEF DESCRIPTION OF THE DRAWINGS
[007] It should be understood that the following drawings show details of only typical modalities of the invention and are therefore not to be considered to be limiting its scope and, in particular:
[008] Figure 1 illustrates the sun facing the side of a slatted sliding blind disclosed;
[009] Figure 2 shows a side view of the blind, shown in Figure 1;
[0010] Figure 3 illustrates a perspective view of the blind illustrated in Figure 1;
[0011] Figure 4 illustrates a slatted sliding blind disclosed in which the slats are progressively spaced in height;
[0012] Figure 5 represents an enlarged view of the slatted slatted blinds disclosed as illustrated in Figure 1, which illustrate a fabric used for the canvas.
[0013] Figure 6 is a flow chart of the manufacturing process for slatted slats from Figures 1 to 5;
[0014] Figure 7 represents an elevational frontal view of the system disclosed during the first stage of the inventive process;
[0015] Figure 8 represents a top elevational view of the system disclosed during the first stage of the inventive process;
[0016] Figure 9 represents an elevational frontal view of the system disclosed during the first stage of the inventive process;
[0017] Figure 10 represents a top elevational view of the system disclosed during the first stage of the inventive process;
[0018] Figure 11 represents a frontal elevational view of the system disclosed during the first stage of the inventive process;
[0019] Figure 12 represents a top elevational view of the system disclosed during the first stage of the inventive process;
[0020] Figure 13 is a flow chart providing more details of the flow chart of Figure 6;
[0021] Figure 14 represents an elevational frontal view of the system disclosed during the realization of a second stage of the inventive process;
[0022] Figure 15 represents a top elevational view of the system disclosed during the execution of a second stage of the inventive process;
[0023] Figure 16 represents an elevational frontal view of the system disclosed during the performance of a second stage of the inventive process;
[0024] Figure 17 represents a top elevational view of the system disclosed during the performance of a second stage of the inventive process;
[0025] Figure 18 represents an elevational frontal view of the system disclosed during the performance of a second stage of the inventive process;
[0026] Figure 19 represents a top elevational view of the system disclosed during the performance of a second stage of the inventive process;
[0027] Figure 20 represents a frontal elevational view of the system disclosed during the performance of a second stage of the inventive process;
[0028] Figure 21 represents a top elevational view of the system disclosed during the performance of a second stage of the inventive process;
[0029] Figure 22 represents an elevational frontal view of the system disclosed during the realization of a second stage of the inventive process;
[0030] Figure 23 represents a top elevational view of the system disclosed during the realization of a second stage of the inventive process;
[0031] Figure 24 is a flow chart providing more details of the flow chart of Figure 6;
[0032] Figure 25 is a flow chart providing more details of the flow chart of Figure 6;
[0033] Figure 26 represents an elevational frontal view of the system disclosed during the completion of the third and fourth stages of the inventive process;
[0034] Figure 27 represents a top elevational view of the system disclosed during the completion of the third and fourth stages of the inventive process;
[0035] Figure 28 is a side view of a portion of the disclosed system;
[0036] Figure 29 is an additional side view of the portion of the disclosed system shown in Figure 28;
[0037] Figure 30 is an additional side view of the portion of the disclosed system illustrated in Figure 28;
[0038] Figure 31 is a flow chart providing more details of the flow chart of Figure 6;
[0039] Figure 32 is a flow chart providing more details of the flow chart of Figure 6;
[0040] Figure 33A is an alternative blind that can be manufactured by the disclosed process, shown before heat treatment;
[0041] Figure 33B is an additional view of blinds at 33A, after heat treatment;
[0042] Figure 34 is an alternative blind that can be manufactured by the disclosed process, shown before heat treatment;
[0043] Figure 34B is an additional view of blinds on 34A, after heat treatment;
[0044] Figure 35B is an additional view of the blind in 35A, after heat treatment, with connections created by heat treatment and open in the extension of the complete roll;
[0045] Figure 36 is an alternative blind that can be manufactured by the disclosed process;
[0046] Figure 37A is an alternative blind that can be manufactured by the disclosed process, shown before heat treatment, in which some titles will be created during the heat treatment; and
[0047] Figure 37B is an additional view of the blind in 37A, after heat treatment, with connections created by heat treatment and open in the extension of the complete roll.
[0048] Figure 38 illustrates an elevational front view of an alternative modality in which the fabric / slat product is rolled over the drum;
[0049] Figure 39 illustrates a top elevation view of Figure 38, in which the canvas fabric is rolled over the drum;
[0050] Figure 40 illustrates a side view of the drum wrapped with fabric / slat products of the form of Figure 38;
[0051] Figure 41 illustrates the drum, the screen supply roller and the support roller of Figure 38;
[0052] Figure 42 illustrates an enlarged view of a portion of the drum involved with the fabric / clapboard product of the form of Figure 38;
[0053] Figures 43A-43D illustrate the drum being wrapped in the canvas fabric in the form of Figure 38;
[0054] Figure 44 illustrates an enlarged view of a portion of the drum while the slatted fabric is applied and with roller clamps positioned against the drum in the mode of Figure 38;
[0055] Figure 45 is an elevational top view of the form of Figure 38, in which the slatted fabric is wrapped over the drum;
[0056] Figures 46 and 47 illustrate the process of cutting the slats involved on the drum in the form of Figure 38;
[0057] Figures 48A and 48B illustrate the removal of the screen / slat products from the drum in the mode of Figure 38;
[0058] Figure 49 illustrates one second of a gantry system, used to remove screen / slat products from the drum in the mode of Figure 38;
[0059] Figures 50A-50C illustrate the removal of metal guiding bars and edges to the right of the screen / slat product, while on the platform in the form of Figure 38;
[0060] Figure 51 illustrates wrapping the fabric / slat products in a tube in the form of Figure 38;
[0061] Figure 52 illustrates a mechanism for loading metal bars for the platform of the mode of Figure 38;
[0062] Figure 53 illustrates an enlarged view of a portion of the platform and drum in the mode of Figure 38, further illustrating the movement of the magnet of the turntable; and
[0063] Figures 54 to 60 illustrate the flowchart describing the manufacturing process of sliding shutters according to the alternative modality. DETAILED DESCRIPTION OF THE DISCLOSURES
[0064] The following is a brief discussion of slatted slatted blinds, manufactured according to the published process. The benefits of the disclosed slatted slat shutter are discussed in International Patent Application PCT / US2009 / 064682.
[0065] Returning to figure 1, slatted slatted blinds 10 include a roll 12. The axial length of roll 12, defined between opposite side edges 14, 16 of roll 12, covers the width of shutter 10. Roll 12 is designed to support the blind 10 without additional ladder ropes. The illustrated roll 12 is usually about 0.5 m (20 inches) long.
[0066] Slatted slatted blinds include a screen 18. The width of the screen, defined by the opposition of side edges 20, 22, is substantially the same as the axial length of the roll 12. The height of the screen 18, which is the height of the blind 10, it is defined by opposing the edges of the upper and lower screen 24, 26, the upper edge 24 is directly connected to the roll 12 and the lower edge 26 is spaced from it. The height of the screen can be a height normally available for standard sliding shutters or it can be a height adapted as specified for high-scale window or door treatments.
[0067] The blind 10 includes several slats or blinds extending transversely 13, which provide blinds with directional shading. The various strips 13 include, for example, the first and second strips spaced at height 30, 32. Each of the strips has substantially the same length, defined by side edges 34, 36 in the first 30, as opposed to the side edges 38, 40 on the second batten 32. In addition, the length of the battens is substantially the same as the axial length of the bearing 12.
[0068] Each of the strips 30, 32 also has substantially the same circumferential width, defined by the upper and lower opposition, 42, 44 edges on the first batten 30 and opposing the upper and lower edges 46, 48 on the second batten 32. The circumferential width of each batten 30, 32 is proportional to Pi, which is effectively about one third of the circumference of the outside diameter of the roll 12.
[0069] Figures 2 and 3 illustrate the curvature of the edge of the slats 13. As shown in figure 2, when retracted, the blind 10, with the canvas 18 and the slats 13 rolled over the roll 12, forms a spiral curve 50 ( see also the illustration of the slats as item 216, figure 30). The curvature of the edge of each lath is defined by the spiral curve segment 50 in the respective lath is positioned when the blind is retracted. As such, the curvature of the slat set 13 progressively changes between each adjacent slat, 30, 32. For example, the slats closer to the upper portion of the blind 10 have a medium, or medium radius, which is less than for the slats closer to the lower portion of the blind.
[0070] The slats of sliding blinds, due to their compact retracted configuration, can be manufactured in relatively large units and quite easily subdivided with a hand or a chainsaw. For example, the blind can be manufactured in widths of 4.9 m (16 feet), which is approximately two and a half times the width of the normal blind. Statistically, such a width provides a reasonable yield when cutting to custom-sized shadows in the normal-sized range between three and eight meters wide.
[0071] In the modality illustrated in figure 4, a progressive height spacing can also be provided between slats, as shown in an exaggerated way in the figure. Here, the blind 10 is installed so that the back surface of the slats is against the screen when the front surface of the slat designs is in the direction of direct incident light.
[0072] As illustrated, the height spacing between the adjacent slats progressively increases, starting at the upper portion of the lath and continuing until the lower portion of the lath. For example, looking at the upper parts of the three strips 52, 54, 56, the distance between the second and third strips, 54, 56 is greater than the distance between the first and second strips 52, 54. The The actual spacing gradient between each lath can increase by, for example, ten thousandths of fifteen thousandths of 0.025 m (1 inch).
[0073] In the figure, the direct incident light is illustrated as in sets of essentially parallel lines 58, 60. Due to the progressive spacing height, the direct light is blocked to pass through the pair of slats of the upper portion 52, 54. In the However, some direct light is able to pass through, for example, the lower pair of strips (the first and second strips mentioned above) 30, 32.
[0074] The height of the progressive spacing provides a view of more and less shade through the slats of the lower portion 30, 32, compared to the slats of the upper portion, 52, 54. As a result, sunlight is allowed to enter and illuminate a space while being blocked from the eyes of people standing in space. Other spacing height options include inverted spacing progression, constant spacing between the slats, a progression defined by a nonlinear gradient, such as a parabolic gradient or a non-uniform gradient.
[0075] The materials used for slatted sliding blinds 10 include, for roll 12, shown in figure 1, an aluminum tube normally having an outside diameter of approximately 0.05 m (2 inches) and a thickness of approximately one sixteenth of 0.025 m (1 inch). Other pipe sizes and materials could be used, including, for example, a 0.025 m (1 inch) outside diameter pipe.
[0076] For screen 18, in an indoor environment, a fabric or mesh, semi-complete or pure fabric could be used. The inner fabric shown in figure 5 includes an aesthetic or pattern design print 62, providing the appearance of sets of lines that extend longitudinally across the canvas and are grouped transversely across the canvas.
[0077] For external purposes, instead of a fabric, a scrollable screen suitable for outdoor exposure can be used. Screen materials can include metal, such as, but not limited to aluminum, or plastic, vinyl, fiberglass, and the like. A typical window screen, for example, can be made from an aluminum mesh or core and sheath, such as vinyl coated fiberglass yarns, or polyethylene coated polypropylene yarns, which are heat-melted after weaving to fix the wires at their crossing points. A screen in the form of a wire mesh material can be oriented at an angle of forty-five degrees or some other angle that displaces the mesh of a typical window or the orientation of the door screen, to avoid a moiré pattern look.
[0078] The slats, 30, 32 are manufactured from a non-woven blackout, that is, opaque, woven, such as a non-woven laminate for an opacification film. Other materials include thermoplastic, such as PVC, PET (polyester) or polycarbonate, for example, seven to fifteen thousand, PVC, PET, or PC film, which is thermoformable between 349.8 and 394.3 degrees K (170 and 250 degrees F). Another example is a thousand white PET (opacification film) laminated to a non-woven fabric, from fifty to eighty grams per square meter, made of thermoformable polyester fiber, which easily accepts glue and coloring as desired.
[0079] The slats, 30, 32 can be fixed to the screen 18, applying an adhesive to the back surface of the lath (that is, opposite to the screen 18) at the respective edges of the upper portion of the lath 44, 48. An appropriate adhesive is a thermoplastic copolyester adhesive, applied under pressure.
[0080] Having discussed the blind 10 manufactured by the inventive process, attention will now be directed to the process and the system for its manufacture.
[0081] As illustrated in figure 6, the system and process for manufacturing slatted slatted blinds includes structure for carrying out a first step, step S1, of helical winding clapboard fabric in the canvas fabric, which is helically wound on a drum housing, and forming a canvas / slat product. A second step, step S2, includes moving the screen / slat product from the drum housing to a platform during helical winding of the additional screen fabric in the drum housing.
[0082] The following process returns to step S1 and wraps the additional lath fabric over the additional fabric fabric. Simultaneously, the process continues the third phase, step S3, of rolling the slat / slat product over a roller tube, to form a slatted slatted blind, which provides the slats with a spiral curvature profile. A fourth step, step S4, includes moving the blind from the platform to a heat treatment device.
[0083] The steps are synchronized, so that a first shutter formed from a first formed slat / slat product is moved from the platform to the heat treatment device, substantially when a second formed slat / slat product is moved from from the drum to the platform. In this way, a continuous cycle of manufacturing blinds is provided by the disclosed process.
[0084] Now returning to figures 7 to 12, a further discussion will now be provided of a system 100 that is capable of performing step S of helical winding lath fabric in the fabric of the fabric, which is helically wound over a drum housing , and forming a screen / slat product.
[0085] As illustrated in figures 7 and 8, the components of system 100 that perform step S include a master drum 102, which is capable of rotating on its central axis with appropriate automated machines. For orientation purposes, considering polar coordinates, the drum has axial front and rear ends 104, 106, as well as radial right and left sides 108, 110 and upper and lower ends 112, 114. Clockwise and counterclockwise orientations are consistent in frontal elevational views.
[0086] Drum 102 has an outer housing 116 and an inner cavity 18. Drum housing 116 has an axial opening 119, which extends the axial length of drum 102. Axial opening 119 is at the upper end 112 of the drum housing 16 when drum 102 is in its initial position. Axial opening 119 has circumferentially spaced sides, left 120 and right 121, extending axially. Through the axial opening 119, the web 122 is able to be twisted and rolled counterclockwise over the drum housing 116, as discussed below.
[0087] The drum housing 116 has a circumferential extension that defines the maximum width of the blind. As indicated above, an appropriate fabrication width, which can be subdivided into several blinds 10, is substantially, but not limited to, 4.9 m (16 feet). The axial length of the drum 102 is discussed below.
[0088] Several components are arranged inside the drum cavity 118. All of these components rotate on the central axis of the drum with automatic rotation of the drum 102. A discussion of these components is now provided.
[0089] A fabric supply roll 124, which supplies the fabric cloth 122, is provided inside the drum cavity 118. An axial length of the fabric supply roll 124 defines the maximum height range of the blind 10 manufactured, illustrated in figure 1. Consequently, the drum 102 has an axial length that is greater than the axial length of the fabric supply roller 124. This allows the drum housing 116 to support the entire height range of the fabric. canvas fabric 122 during the manufacturing process.
[0090] The fabric supply roll 124 is supported on a mechanized roll 125. The roll 125 is capable of being guided to supply the additional fabric fabric or is rotationally being locked to prevent additional fabric supply. Roller 125 is, for example, belt driven.
[0091] In the drum cavity 118, the canvas fabric is rolled up by means of a network tension controller dancer 126, which is illustrated as a typical double roll 128, 130 of the dancer system. The fabric of the fabric is further wound against a guide roll 132, located on the left side 120 of the axial opening 119.0 guide roller 132 guides the fabric of the fabric out of the axial opening 119 of the drum housing 116.
[0092] Once drawn from the axial opening 119, and wrapped counterclockwise on the drum housing 1 16, the fabric 122 ends at a front edge 134, on the right side 121 of the axial opening 119 of the housing drum 116. Wrapping the fabric 122 counterclockwise over the drum housing 116 drags the fabric 122 against the left side 120 of the axial opening 119. Consequently, with the leading edge of the fabric 134 ending on the right side 121 from the axial opening 119, the web 122 does not extend circumferentially over the axial opening 119.
[0093] Another drum component 102, although not inside cavity 118, is a drum magnet 138. Drum magnet 138, as well as other magnets used in this process, discussed below, can be electromagnet or permanent magnet. The drum magnet 138 is essentially flush with the drum housing 116, 121, on the right side of the axial opening 119, with the front edge of the fabric 134. The structure providing a fixed support for the drum magnet 138 is disposed within the cavity drum 118 and not shown in this document.
[0094] A metal bar 140 blocks the edge of the fabric fabric 134 against the drum magnet 138. Locking the fabric supply roll 124, and positioning the metal bar 140 against the magnet 138, keeps the fabric fabric 122 taut during the entire step S1. The metal bar 140 has a length that is at least the same as the axial length of the web supply roll 124, so as to secure the main integral edge 134 of the web fabric 122.
[0095] Other components for carrying out step S1 include a batten supply roll 142. The batten supply roll 142 provides batten 144 for distribution against the batter 122. An adhesive dispenser 146 provides adhesive 148, allowing lath fabric 144 to hold canvas fabric 122.
[0096] The structure 150 is provided for distribution of batten fabric 144 against the fabric 122. The batten distribution structure 150 also supports the batten supply roll 142 and the adhesive dispenser 146. The structure of slat distribution 150 includes one or more guide rollers 152, 154 for guiding the batten fabric 144 from the batter fabric supply roller 142 to the adhesive dispenser 146 and to the fabric fabric 122.
[0097] Lath fabric 144 is guided through lath distribution structure 150 so that adhesive 148 is applied only along one edge of a back surface of lath fabric 144 (i.e., the surface facing the canvas fabric 122). This edge corresponds, for example, to the upper edge 42, 46 of the slats 30, 32 in the completed shutter 10, illustrated in figures 1 to 4. a. In addition, a paper release roll (riot illustrated) is supported by the slat distributing the structure 150. The release paper is rolled over the canvas fabric 122, simultaneously with the slat fabric 144 so that the top edge of the paper of the release is aligned with, but does not cover the glue line at the top edge of the back surface of the 144 clapboard. The release paper extends beyond the bottom edge of the back surface of, for example, clapboard 30 and substantially covers the front surface total of the previously coiled batten 32 (see figures 3 and 4).
[0098] Alternatively, the release paper may be large enough to cover the entire surface of the canvas fabric 122. In this case, a base layer of the release paper could be wound between the canvas fabric 122 and the drum 102 or on the canvas fabric 122 after the complete application of the batten fabric 144. The length of the paper could be obtained from a roll of such material inside the drum 102 and wound on the drum 102, together with the winding of the canvas fabric 122.
[0099] The release paper prevents the adhesive from advancing through the fabric 122 and connecting to an adjacent slat when the blind is in a rolled-up configuration during the heat treatment process, discussed below. The advance is largely due to the flow characteristics of the adhesive, the temperature is increased during the heat treatment process. If the selected adhesive does not flow or bond from the heat treatment temperatures, then this application of the release paper may be unnecessary.
[00100] The slat distribution structure 150 includes a pair of tweezers 156, 157, which can be a small piece of sheet metal, plastic or other rigid material. The clips 156, 157 are arranged in line, but downstream of the guide rollers 152, 154. The clip 156 serves to position the batten fabric 144 against the canvas fabric 122 and the clip 157 firmly presses the adhesive 148 onto the fabric fabric 122. This process creates a connection between the batten fabric 144 and the batter fabric 122.
[00101] The slat distribution structure 150 is positioned against the right side 110 of the drum 102. The structure 150 remains on the right side 110 of the drum 102 throughout the manufacturing process. In addition, the slat distribution structure 150 is initially arranged at the axial rear 106 of the drum 102. The structure 150 is capable of transferring between the rear portion 106 and the front ends 104 of the drum during the manufacturing process.
[00102] As illustrated in figures 9 and 10, when applying the batten fabric 144 to the canvas fabric 122, the drum 102 rotates clockwise. During this operation, the slat distribution structure 150 travels towards the axial front end 104 of the drum 102. The slat fabric 144 is extracted from the slat supply roll 142 and added to the web 122.
[00103] The rate of axial advance of the slat distribution structure 150, against the drum housing 116, based on the separation of the height of the adjacent slats on the finished shutter, illustrated in figure 1 (and exaggerated in figure 10). For example, if the spacing between the upper edges of adjacent slats is a constant, for example, 0.05 m (2 inches), the axial feed rate of the 150 slat distribution structure is 0.05 m (2 inches) ) per drum rotation 102.
[00104] Alternatively, if a progressive spacing height scheme is used, as shown in figure 4, then the axial feed rate of the batten distribution structure 150 changes as needed. Changing the axial feed rate of the batten distribution structure 150 is easily automated by computer-based controls.
[00105] For example, when manufacturing the blind in figure 4, the height spacing incrementally changes between the slats. That is, the spacing becomes greater when the slats are positioned farther from the upper portion of the blind 10. The change is apparent when checking the spacing between the slats 30, 32, in the lower portion of the blind 10, compared to the slats, 52, 54, in the upper portion of the blind 10. The axial feed rate of the slat distribution structure 150 is controlled to provide for this height spacing scheme.
[00106] The axial progression of the slat distribution structure 150 while rotating the drum 102 leads to helically depositing the slat fabric 144 on the canvas fabric 122. In relation to the radial axis of the drum 102, the slat fabric 144 is deposited at an angle, reference number 158, shown in figure 10.
[00107] In order to correct the angular positioning of the slats in the canvas fabric 122, the fabric 122 is helically wound in the drum housing 116. The helical winding is measurable, for example, an axial spacing 160 between a front corner 161 of the fabric leading edge 134 and a front corner 163 of the fabric as positioned on the left side 120 of the drum opening 119.
[00108] The axial spacing 160 is substantially the same as the height spacing between the adjacent slats on the blind. The implementation of axial spacing 160 positions the battens substantially in parallel with the upper and lower parts of the edges, 164, 166 of the combined fabric 122 and the batten fabric product (the batten / batten product 162).
[00109] The helical winding in order to obtain progressive spacing results in the change of angular positioning 158 of the batten fabric 144 along the axis of the drum 102. For example, in figure 4, the height spacing between the slats 30, 32 it is larger in the lower portion of the blind 10 than with the batten 52, 54 in the upper portion of the blind. Consequently, the angular positioning 158 is greater in the lower portion of the blind compared to the upper portion of the blind. However, when the fabric 122 is a unitary piece, the angular positioning 158 of the fabric 122 on the drum 102, in order to obtain axial displacement 160, is constant. In this sense, the helical winding of the canvas fabric 102 is applied so as to correspond to the angular positioning of the batten fabric 128 at the front axial end of the drum 102, at the rear axial end of the drum, or an average between them, as can be seen. wanted.
[00110] It should be noted that the fabric 122 on the left side 120 of the opening 119 does not undergo any axial displacement. With respect to drum 102, the front corner of the screen 163 is axially in the axial front line of the slat material on the roll 124. This is because this portion of the screen fabric 122 is positioned before the helical winding of the screen fabric 122 over the drum housing 116. On the other hand, the web 122 at the leading edge 134, for example, at the leading edge 161, undergoes a maximum amount of axial displacement. This is because this portion of the fabric 122 represents the last portion of the fabric 122 wrapped during the helical winding process.
[00111] The process of rolling the strips 144 onto the canvas fabric 122 presses the metal bar 140 between these two materials, at the leading edge 134 of the canvas fabric 122. In addition, as illustrated in figure 10, the wrapping process wrapping the batten fabric 144 continuously over the drum housing 16, for example, circumferentially through the axial opening 119 in the drum housing 116.
[00112] As illustrated in figures 11 and 12, a cutter 168, such as a rotating knife, is supported on a gantry system 170. Once the clapboard 144 is distributed, drum 102 is brought to the starting position, that is, with the opening of 119 in the upper position. At this point, the cutter 168 travels axially along the drum 102, between the opposite front and rear ends 106, 104 of the drum.
[00113] During the path of the cutter 168, it passes between the right and left sides 120, 121 of the axial opening 119. In this way, the cutter 168 divides the batten fabric 122 (and the release paper) but not the screen 122. This is because, as indicated, the screen fabric 122 does not extend circumferentially over the axial opening 119. Consequently, the screen fabric 122 remains attached to the screen supply roller 124.
[00114] Returning to figure 13, a flow chart is now provided to further illustrate the process of step S1, of helically winding the batten fabric 122 in the canvas fabric 144, which is helically wound over the drum 102, thus forming the product of batten fabric 162. As shown in the figure, step S1 simultaneously performs the following steps: step S101 of rotating drum movement, 102; step S102 of application through the batten distribution structure 150, the batten fabric 144 in the batter fabric 122; and step S103 of advancing the slat distribution structure 150 between opposite axial ends 106, 104 of the drum 102 at the rate that defines the height spacing between the slats. The step S1 additionally includes the step S104 of cutting, along the axial opening 119 in the drum 102, the slat fabric product 162 wrapped over the drum 102, without cutting the fabric fabric 122.
[00115] When applying lath fabric 144 to canvas fabric 122, other steps will be performed, substantially simultaneously, by lath distribution structure 150. These steps include step S105 of coating the adhesive to the edge of lath fabric 144 and step S106 of the laminating release paper with batten fabric 144. Such measures also include step S107 of pressing the batten edge of the adhesive coated on the batter 122.
[00116] Additional steps are taken to ensure that the web 122 is securely secured to the drum housing 116 during step S1. These steps include step S108 of fixing the leading edge 134 of the web 122 against the drum 102, on one side 121 of the axial opening 119, between the metal element 140 and the drum magnet 138. Additional steps include the step S109 of preventing the supply of canvas fabric 124, disposed within the drum 102, from the supply of additional canvas fabric through the axial opening 119. As a result of steps S108 and S109, the canvas fabric 122 is tensioned in the drum 102 during the helical winding of the batten fabric 144 over the fabric fabric 122.
[00117] Now moving on to figures 14 to 23, an additional discussion will be provided from step S2 of moving the screen / slat product from the drum housing to the platform during the helical winding of the additional screen fabric in the drum housing.
[00118] As illustrated in figures 14 and 15, the necessary components for step S2 include a platform, such as a platform 176, which takes the form of a large rectangular table. Consistent with the aforementioned orientation, platform 176 has opposite front and rear ends 178, 180 and opposite left and right ends 182, 184. Extending from front front 178 of platform 176 is a substantially rectangular platform extension 185. It should be noted that the rectangular platform 185 is illustrated as being trapezoidal. This is only because of an exaggerated angle 221 (figure 23), in which a roller compartment 206 is illustrated as being positioned in relation to platform 176. The angle 221 and rollers 206 are discussed in more detail below.
[00119] The extension of platform 185 has a rear edge 187 opposite the front edge 178 of platform 176. Platform 185 has left and right edges 189, 191, which are spaced so that platform 185 can accommodate a roll tube 208 (figure 23), in which product 162 will be rolled up, discussed in more detail below. Platform 185 is not illustrated in side views and the front edge of platform 193 is illustrated, for example, in figure 28. The purpose and other characteristics of platform 185 are discussed below.
[00120] The gap between the rear portion 180 of platform 176 and the front edge 193 of the extension of platform 185 is at least as large as the axial length of cylinder 102 as well as providing a receiving platform for the screen / batten product 162 during processing. The right end 184 of platform 176 is adjacent, but does not touch or exceed, and is the height level with, the left side 120 of the axial opening 119 in the drum housing 116. The height level relationship between the upper portion of the drum and the platform 176 allows to smoothly unfold the screen / slat product 162 from the drum to the platform 176.
[00121] Another component of step S2 is a gantry magnet 186 which is able to hold the guiding edge 172 of the screen / batten product 162, through the pressed metal bar 140. Gantry magnet 186 is also capable of displacing the product from screen / batten 162 for left end 182 of platform 176. If drum magnet 138 is a permanent magnet, then a mechanical release device (not shown) would be used to release the grip between drum magnet 138 and the metal bar 140 at the leading edge 172 of the screen / slat product 162. The same applies if the magnets, discussed in this document, are permanent magnets. Mechanical release devices can be advantageously used even with electromagnets to overcome the residual magnetic field.
[00122] During step S2, the screen supply roller 124 is rotationally locked. While the gantry magnet 186 moves the screen / batten product 162, the drum 102 automatically rotates counterclockwise by one rotation, so that the axial opening 119 starts and ends at the upper portion 112 of the drum 102.
[00123] From the point of view of the upper portion 112 of the drum 102, this sinuous movement is tangentially towards the platform 176. This movement assists in the unfolding of the screen / slat product 162 from the drum 102 and towards the platform 176.
[00124] The timing of the drum rotation substantially corresponds to the speed at which the gantry magnet 186 moves the guiding edge 172 of the screen product / slat 162. This allows the screen / slat product 162 to unwind from the cylinder housing 116 without pull against the locked screen supply roll 124.
[00125] Platform 176 includes right and left magnets 188, 190, which have the same magnetic and parallel characteristics as the magnet of drum 138. Left magnet 188 is spaced from drum 102 by a distance that is substantially the same as the circumferential dimension of the drum 102. The right magnet 190 is positioned near the right end 184 of the platform 176 for reasons discussed below.
[00126] Since the gantry magnet has unwound the screen / slat product 162 from the drum housing 116, the leading edge 172 of the screen / slat product 162 is aligned with the left magnet of platform 188. That is, with the metal bar 140, the gantry magnet transfers the leading edge 172 of the screen / slat product 162 to the left magnet of platform 188. This locks the edge 172 of the screen / slat product against platform 176.
[00127] As shown in figures 16 and 17, a bar tray 192 is located at the left end of platform 176. Bar tray 192 contains a second metal bar 194, having the same characteristics as the first metal bar 140. After orientation edge 172 of the screen / slat product 162 is locked against the left platform magnet 188, the gantry magnet 186 obtains the second metal bar 194 from the bar tray 192. The second metal bar 194 is deposited on the platform magnet right 190, locking the screen / slat product 162 at that location.
[00128] As illustrated in figures 18 and 19, since the screen / slat product 162 is secured by two platform magnets, 188, 190, drum 102 winds clockwise by one rotation, so that the axial opening 119, start and end at the top 112 of drum 102.
[00129] From the point of view of the upper portion of the drum 102, this movement is tangentially distant from the platform 176. As a slat fabric product 162 is locked on the platform 176, this movement helps to pull the fabric fabric 196 around the carcass of the drum 116. During this process, the fabric supply roll 124 is not locked, but automatically revolves to assist in unwinding the additional fabric 196.
[00130] The canvas / batten product 162 that was against the guide roll 132, on the left side 120 of the axial opening 119, is now spaced from the guide roll 132 by the additional canvas fabric 196. In addition, the canvas fabric 122 now extends circumferentially between the left and right sides 120, 121 of the axial opening 119.
[00131] The magnets on the left and right platforms 188, 190 are capable of simultaneously moving forward 178 (and back to 180, at the end of the process) of platform 176. The simultaneous movement of the magnets, 188, 190 can be carried out, for example, by connecting the magnets, 188, 190 on a common, automated track (not shown), under platform 176.
[00132] During the winding process, that is, while drum 102 is advanced clockwise for a complete revolution, the platform magnets 188, 190 advance at a constant rate forward 178 of platform 176. The movement of the magnets , 188, 190 towards the front of platform 176 transports the screen / slat product 162 in the same direction. The movement of the screen / slat product 162 on platform 176 can be facilitated by an air support conveyor (not shown) located on platform 176, intermediate current between opposing magnets 188, 10. With or without such air cushioning, this movement leads the additional web 196 towards the axial front end 104 of the drum 102.
[00133] As a result of the incremental direct travel of the screen product / riba 162, during winding, the additional screen fabric 196 is helically wound over the drum housing 116. As with the measurement of the axial spacing 160 in the fabric of screen 122, the helical winding is measurable by axial spacing 198. In addition, the upper edge 164 of the screen / batten product 162 is now passed at the front end 178 of platform 176 and over the extension of platform 185.
[00134] The location of the magnet of the right platform 190 is such as minimizing the path required to obtain the appropriate helical winding of the additional canvas fabric 196 on the drum housing 116. Such positioning is determined and optimized using basic mathematical principles, as would be known as an expert in the technique after reviewing the disclosure.
[00135] As illustrated in figures 20 and 21, the gantry magnet 186 nearby moves the second metal bar 194 to the drum magnet 138. This action, the additional canvas fabric 196 is locked in place where the drum magnet 138.
[00136] As an alternative, instead of moving platform magnets 188, 190, drum 102 can be axially moved to perform the same relative displacement between platform 176 and drum 102 (not shown). Such movement, during the extraction of the additional screen 196, helically wound fabric 196 on the drum 102. This process would create the same axial displacement 198 as performed by moving the platform magnets 188, 190, in relation to the axially stopped drum 102. Once the additional fabric 196 is rolled over the drum 102 and locked in place, the axially movable drum 102 would return to its initial location.
[00137] Cutter 168 now advances between axial front and rear ends 106, 104 of drum 102 in axial opening 119. This action separates the screen / slat product 162 from the additional screen fabric 196, providing the screen / slat product 162 with an edge on the right side, that is, an edge on the right 174. Additional canvas fabric 196 is now provided with an orientation edge 200 on the drum magnet 138, ie on the right side 121 of the axial opening 119 drum housing 116.
[00138] As illustrated in figures 22 and 23, the gantry magnet 186 holds the guiding edge 172 of the fabric / batten 162, through the pressed metal bar 140. The gantry magnet 186 moves the batten / batten product 162 towards to the left end 182 of platform 176, in the bar tray 192 area.
[00139] At the left end 182 of platform 176, the pressed metal bar 140, as well as the immediately surrounding canvas / batten product, are cut away from the rest of the batten / batten product 162. The cutting action is a manual cutter or automated (not shown) located at the left end 182 of platform 176. The metal bar 140, with residues of fabric product / slat attached, is deposited automatically or manually in the bar tray 192. The wasted tissue can now be manually or automatically removed bar 140, for example, using a rigid blade.
[00140] Although not discussed in detail, it should be appreciated that the process of wrapping the canvas fabric 122 over the drum housing 116, for example, before the step of S1, is the same as the process disclosed for the winding up helicoidal of the additional canvas fabric 16 on the drum housing 116, in step S2.
[00141] Furthermore, as illustrated in figures 6, 22 and 23, when the screen / slat product 162 removed the drum housing 116, the cycle system 100 returns to step S1 in relation to the additional screen fabric 196 of drum housing 116. That is, the additional batten fabric 204 is helically deposited on the additional fabric 196. Simultaneously, the process continues to step S3, discussed below.
[00142] Returning to figures 24 and 25, flowcharts are now provided to additionally illustrate the process of step S2, from the movement of the screen / slat product 162 from drum 102 to platform 176 to additional screen fabric 196 from drum 102 of helically wound. As illustrated in figure 24, step S2 includes step S201 of turning drum 102 once in the first direction while simultaneously performing step S202 of unwinding the web / batten product 162 from drum 102 to platform 176.
[00143] Since the step S2 of unwinding includes the step S203 of turning the drum 102 once in the second direction. Simultaneously, the process carries out step S204 of extraction, through the axial opening 119 in drum 102, of the additional fabric fabric 196 from the fabric fabric supply 124. The additional fabric fabric 196, while being extracted, is rolled up helically over drum 102, as indicated in step S209.
[00144] As illustrated in figure 25, following the helically winding step S209, the process includes the cutting step S210, along the axial opening 119 in drum 102, to separate the screen / slat product 162 from the additional canvas fabric 196 rolled over drum 102. In addition, the process includes step S211 of moving the canvas / batten product 162 on platform 176 away from drum 102.
[00145] More specifically, as illustrated in figure 24, step S202 of unwinding the web / batten product 162 from drum 102 to platform 176 includes several steps. One step, step S205, is to control the guiding edge 172 of the screen / slat product 162, through the pressed metal element 140 and the movable magnet 186. One more step. Step S206 is to transport the guiding edge 172 of the web / slat product 162 to the first magnet of platform 188.
[00146] Step S202 additionally includes step S207 of blocking edge 172 on the first magnet of platform 188. Step S202 also includes step S208 of blocking the screen / batten 162 on the second magnet of platform 190 with the second element metallic 194; the second magnet 190, being located between the guide edge 172 of the product 162 of the opposite end 184 of the platform 176.
[00147] Furthermore, as illustrated in figure 25, the step S209 of helically winding the additional canvas fabric 196 onto the drum 102 includes several steps. That is, step S209 includes step S212 of moving the web / slat product 162 in a parallel direction with the longitudinal axis of the drum 102. Simultaneously, step S209 includes the winding of the additional web 196 over the web 102, as indicated in step S213.
[00148] Once the winding is completed, the process includes step S214 of locking the additional canvas fabric on a circumferential side 121 of the axial opening 119, between the second metal element 194, which has been moved from the magnet of the platform 190 and drum magnet 138. At the same time, the process provides step S215 of preventing the supply of canvas fabric 124 in addition to providing canvas fabric. As a result of steps S214 and S215, the additional canvas fabric 196 is stretched in the helical configuration on the drum 102.
[00149] In addition, the step S212 of moving the screen / batten product 162 in a parallel direction with the longitudinal axis of the drum 102 is obtained by step S216. Step S216 is to move the first and second magnets on the platform 188, 190 in the direction parallel to the longitudinal axis of the drum 102, carrying the screen / slat product with it.
[00150] Referring now to figures 26 to 31, attention will be paid to step S3, of rolling the canvas / slat product over a roll tube to form a slatted slatted blind, which provides the slats with a curvature profile spiral. As indicated, step S3 occurs during the cycle system 100 through step S1 with the additional fabric 196 deposited on the drum housing 116. At the beginning of step S3, the fabric / batten product 162 is positioned at the left end 182 from platform 176.
[00151] Referring to figures 26 and 27, components of the embodiment disclosed for carrying out step S3 include a supply of roll tubes, such as a roll tube compartment 206, in which a roll tube 208 will be obtained. The compartment 206 is provided along the front of the platform 185 extension, where the upper edge 164 of the screen / slat product 162 is located.
[00152] The roll tubes in compartment 206 each have an axial length, which, consisting of the noted orientation, are defined between the axial opposite left and right ends 210, 212 of the roll tubes. The axial length of the roll tube is superficially greater than the width of the web / slat product 162, i.e., the top edge 164 of the web / slat product 162, for reasons discussed below. As indicated, the product width range 162 is substantially 4.9 m (16 feet).
[00153] As shown in figure 28, the roll tube 208 is obtained automatically from the roll tube compartment 206. This is achieved by positioning the roll tube compartment 206 at an angle, as well as the gravity supply of individual tubes against the automated pin cylinders upstream and downstream 201, 203. A roll tube fits between pins 201,203, and the pins are timed to allow a roll tube at a time into the mouth of a fixed Y-shaped jaw 205 while subsequently advancing a nearby roll tube between the 201,203 pin cylinders.
[00154] The angle for the Y-shaped clamp 205 is about ninety degrees. The jaw length 205 is at least as long as the width of the screen / batten product 162 and slightly shorter than the roll tube 208. This configuration leaves a small length of the roll tube 208 exposed, for example, at the end right 184 of platform 176, for reasons discussed below. The jaw surface 205 opposite tube 208 is coated with a cushioning material 207, for example, foam and UHM PE tape to minimize pressure and friction points during the winding operation discussed below.
[00155] As illustrated in figure 29, once the roll tube 208 obtained, it is loaded on the extension of platform 185, located in front 178 of platform 176. In this location, it is positioned against the upper edge 164 of the front surface of the screen / slat product 162. To do this, the fixed jaw 205 is connected to a pivot arm 209. The balance of the arm 209 is dimensioned to correctly position the roller tube 208 against the screen / slat product 162, so that the length of the entire roll tube 208 is the extension of the platform 185. The fixed jaw 205 remains in this location until the screen / slat product 162 is poured into oven 230, as illustrated in figure 30 and discussed below.
[00156] To help secure the roll tube 208, the fixed jaw 205 is drilled along its length, and a vacuum hose 121 is positioned under the perforations. The vacuum pressure allows the roller tube to be positioned without additional mechanical connections between the fixed clamp 205 and the roller tube 208.
[00157] The roll tube 208 is positioned on the screen / slat product 162 so that the two are directly aligned. To create the proper alignment between the roll tube 208 and the screen / batten product 162, the roll tube 208 is positioned at an angle, reference number 221. Angle 221 is equivalent to the angular displacement 158 at which the slats are deposited on the drum housing 116.
[00158] To additionally limit the pressure and friction points during the winding operation discussed below, the platform extension 185 comprises a flexible seat 213, supported at opposite ends by support elements 215, 217. The configuration is such that the upper portion of seat 213 is flush with the upper portion of the remainder of platform 176.
[00159] A suitable material for seat 213 (.010) is a thick spring stainless steel plate covered with UHMWPE tape of the same thickness, which is smooth and more resistant to wear than Teflon. Seat 213 is positioned on an additional pivot arm 219, discussed below. The support elements 215, 217 separate the seat 213 from the pivot arm 219 by a distance that allows the deflection of the seat 213.
[00160] Proper tightening is created between the roll tube 208 and the slat / slat product 162 by pre-coating the roll tube 208 with double-sided tape (not shown). The release paper on the tape is removed automatically or manually during this portion of the manufacturing process.
[00161] Alternatively, a layer of double-sided tape can be automatically applied to the top edge of the 164 / batten product 164. This can be done by, for example, a roll of tape (not shown) positioning inside the cavity 118 of the drum 102 and applying the tape during the winding process 122 of the canvas fabric (or additional canvas fabric 196) over the drum housing 116.
[00162] Alternatively, a layer of adhesive can be automatically applied to the front surface (facing the canvas fabric 122) of the upper batten fabric 144 during step S1. This would be done using the 150 slat distribution structure. The release paper cannot be applied to this top layer of the slat fabric 122.
[00163] A roller motor with a mandrel 214 is located at the left end 182 of platform 176, over the extension of platform 185, which is aligned and surrounds the left end 210 of roller tube 208. Roller motor 214 rotates the roller tube 208, by extracting the screen / slat product 162. During this process, the fixed tube 205 guides the screen / slat product 162 on the roller tube 208. The result is a slatted slatted blind 216 which is substantially sixteen meters wide between the left opposition 218 and the right 220 of the axial ends 216 of the blind.
[00164] Alternatively, a layer of double-sided tape can be automatically applied to the top edge of the 164 / batten product 164. This can be done by, for example, a roll of tape (not shown) positioning inside the cavity 118 of the drum 102 and applying the tape during the winding process 122 of the canvas fabric (or additional canvas fabric 196) over the drum housing 116.
[00165] Alternatively, a layer of adhesive can be automatically applied to the front surface (facing the canvas fabric 122) of the upper batten fabric 144 during step S1. This would be done using the 150 slat distribution structure. The release paper cannot be applied to this top layer of the slat fabric 122.
[00166] A roller motor with a mandrel 214 is located at the left end 182 of platform 176, over the extension of platform 185, which is aligned and surrounds the left end 210 of roller tube 208. Roller motor 214 rotates the roller tube 208, by extracting the screen / slat product 162. During this process, the fixed tube 205 guides the screen / slat product 162 on the roller tube 208. The result is a slatted slatted blind 216 which is substantially sixteen meters wide between the left opposition 218 and the right 220 of the axial ends of the blind 216.
[00167] Rolled shutter 216 has the configuration of retracted shutter 216 during actual use. This configuration provides a curvature in each lath, as illustrated in figures 2 and 3, defined by the segment of the spiral curve in which the lath is positioned when the blind is retracted.
[00168] Returning to figure 31, a flow chart is now provided to further illustrate the process of step S3, of rolling the fabric / slat product over a roll tube to form a slatted slatted blind, which provides the slats with a profile of spiral curvature. Step S3 includes step S301 of obtaining roll tube 208 from the supply of roll tubes 206 and step S302 of positioning roll tube 208 on the web / batten product 162.
[00169] Step S3 also includes step S303 of winding the web / slat product 162 onto the roll tube 208. This forms the blind 216 and provides the curvature on each side of the slat edge which is defined by the curve segment spiral in which the slat is positioned when the blind 216 is retracted. In addition, step S302 of positioning the roll tube 208 on the web product 162 includes aligning the roll tube 208 with the web / batten product 162, which is angled in the platform 176.
[00170] Staying with figures 26, 27, 30 and 32, an additional discussion will now be provided of stage S4 of thermal treatment of the blind to define the spiral curvature profile in the lath fabric.
[00171] Gantry frame 170 includes frame 222 (illustrated previously not for the sake of clarity) for encapsulating sliding blinds 216. The encapsulation ensures that blind 216 is tightly rolled up during subsequent processing.
[00172] The frame 222 for encapsulating the blind 216 includes a ribbon holder 224 for a clear packaging ribbon supply roll 226. The ribbon holder 224, in its initial location, is positioned at the front right end 178, 184 of the platform 176, in the extension area of platform 185, adjacent to the right end 220 of blind 216.
[00173] The structure 222 is capable of moving, for example, with the structure that supports the gantry magnet 186, over the extension of the platform 185, between the right and left ends 218, 220 of the blind 216. Throughout this range of movement, the tape holder 224 and the tape supply roller 226, remain in the front end area 178 of platform 176, adjacent to shutter 216.
[00174] The tape 228 from the tape supply 226 is connected automatically or manually to the right end 212 of the roller tube, which goes beyond the right end 220 of the blind 216, and the right end of the clamp 205. The roller motor 214 is triggered again while the tape roll 226 is moved over the gantry 170 to the left end 218 of the blind 216. During this process, the blind 216 is encapsulated with a layer of tape 228. Once the blind 216 is taped, the roller motor chuck 214 releases roller tube 208 into shutter 216.
[00175] A heat treatment device, which is an oven 230, is positioned under platform 176 so that an entrance (not shown) for oven 230 is at the front end 178 of platform 176, in the area of the engraved sliding shutters 216. The engraved sliding blinds 216 are automatically interrupted at the entrance of oven 230. To achieve this, the second arm of pivot 219, shown in figure 30, rotates the extension of platform 185 in a downward direction, as shown in figure 30, and pour by gravity of the blind 216 in a mouth 231 of the oven 230.
[00176] As illustrated in figure 30, once the blind 216 is poured into the oven 230, a fixed jaw 205 is pivoted back to its initial position, in which the pins 201,203 are actuated synchronously to receive another roll tube from the compartment.
[00177] As additionally illustrated in this figure, the pivot arms 209, 219 for the fixed jaw and the platform extension 185 can be connected to the same fulcrum element 223 and have a common center line of the pivot. In the illustration, the pivot centers are spaced in height, with pivot arm 209 above pivot arm 219. This allows the jaw 205 to pivot upwards, over fulcrum 223, to accommodate the extension of platform 185, allowing the extension of platform 185 to pivot downwardly towards oven 230.
[00178] In oven 230, blind 216 is heat treated, as disclosed above, so that the spiral curvature on each side edge of the lath is permanently located. For example, as indicated, an example of suitable clapboard fabric is seven to fifteen thousand PVC, PET or PC film. This material is thermoformable between 349.8 and 394.3 degrees K (170 and 250 degrees F). Consequently, oven 230 dries shutter 216 between 349.8 and 394.3 degrees K (170 and 250 degrees F) to define the spiral curvature profile in the slats. It should be noted that the oven can be a standard convective type, a type of RF (radio frequency) or a different type of oven that is capable of activating the thermoforming properties within the thermoformable slat material.
[00179] As the heat treatment process is substantially longer than the time to obtain the encapsulated blind 216, oven 230 is large enough to hold a stack of the blinds so that the system does not have to stop during the cyclic manufacturing process. blinds.
[00180] Returning to figure 32, a flowchart is now provided to further illustrate the process of step S4, from moving the platform blind to a heat treatment device to define the spiral curvature profile in the batten fabric. Step S4 includes step S401 of encapsulating the blind 216. Step S4 also includes step S402 of depositing the encapsulated blind 216 in the oven 230, to heat the blind 216 and define the shape of the spiral curvature profile on the slats .
[00181] More specifically, the step S401 of encapsulating the blind includes the step S403 of fixing the transparent tape 228 to an axial end 220 of the blind 216. The step S401 also includes the step S404 of advancement, through the forward structure of the tape 220, the tape 228 is directed to another axial end 218 of the blind 216, while rolling the blind 216 on its longitudinal axis.
[00182] As indicated, step S1 to step S4 are synchronized in order to roll the canvas / slat product 162 onto roll 208, recording roller blinds 216 and releasing blind 216 in oven 230, occur when system 100 wraps batten fabric 204 over additional batter fabric 196. The combined product of additional batter fabric 196 and additional batter fabric 204 can now be rolled out on platform 176 as the system cycles for steps S2 through S4 for this product additional fabric. It should be noted that the implementation of metal bars 140, 194 reverses with each consecutive cycle through steps S1 to S4.
[00183] Due to the synchronization of steps S1 to S4, blinds can be produced quickly. If rolling the blinds over the canvas fabric takes just a few minutes, it can be appreciated that many blinds can be manufactured every hour, for each 100 system in operation.
[00184] Once cooking is complete, blind 216, with the slats now in accordance with the spiral curve pattern, is removed from an oven outlet (not shown). The blind 216 can be divided with, for example, a miter saw driven electronically, in order to provide at least one blind 10, illustrated in figure 1.
[00185] Once divided, the roller can be equipped with main rail, lower rail, structure, and / or controls. On a main rail, the size of the main rail would be large enough to accommodate the roller and the retracted blind.
[00186] On a lower rail, the blind can be equipped with a weighted lower rail to keep the screen in a stressed condition. The weight of the bottom rail would be particularly useful for blinds arranged on the outside of the architectural opening. In this configuration, the weight of the lower rail would maintain the stability of the blinds, despite, for example, the presence of wind in an external configuration. Typically, tension strips or cables, which wrap around the bottom rail, provide additional wind resistance.
[00187] The main rail and the lower rail can take any of the formats. Considerations for format selection would be the expected durability, cost, or aesthetic requirements of the overall blind set.
[00188] As indicated, the blind set can be supplied within a frame. This configuration is available in an indoor or outdoor installation. When arranged in a structure, the bottom rail, for example, may be unnecessary.
[00189] On controls, a direct control mechanism or an indirect control mechanism can be implemented to extend or retract the blind. An example of a direct control mechanism is an elevator cable with associated gears. An example of an indirect control mechanism is an electric motor, operated by a wall switch or a wireless remote control. The wireless remote control can communicate with the electric motor using electronics normally adapted for radio frequency communications.
[00190] The use of a direct control mechanism will normally be in an indoor installation. The use of an indirect control mechanism will normally be in an external installation. However, no configuration of control mechanisms is limited to indoor or outdoor installations. Different known options are available for direct or indirect roll operation. Consequently, further discussion of these components will be omitted.
[00191] The next series of figures illustrates several alternative blinds capable of being manufactured using the system disclosed above. These blinds can be manufactured with minimal modifications to the disclosed process and materials as will be appreciated by one skilled in the art, after reading this disclosure.
[00192] Figures 33 and 33B illustrate a slide 232 according to a first alternative design. Slide 232 is similar to figure 1, with differences that will now be discussed. In the sliding shutter 10 of figure 1, there is an adhesive line 234, near the top edge on the back surface of the batten fabric 144. In alternative sliding shutters 232, there is, in addition to the first adhesive line 234, a second adhesive line 236.
[00193] As with the first adhesive line 232, the second adhesive line 236 is on the back surface of the lath fabric 144. The second adhesive line 236 is offset from the bottom edge of the lath fabric 144 by about ten to fifteen percent of the circumferential width of the batten. This action creates a lower batten end section 238, below the second adhesive line 236. The size of the end section 238, based on the adhesive offset spacing, can be varied for aesthetic preferences and can be brought to zero, especially when more opaque plain fabrics are used.
[00194] The second adhesive line 234 is applied at the same time as the application of the first adhesive line, with minimal modifications to the distribution structure of the batten 150 (not shown). That is, a second adhesive dispenser, spaced from the first dispenser, would supply the second adhesive line.
[00195] Each slat is positioned so that the slat end section 238 is arranged on the upper edge of the front face of the previously wound slat and so that the second adhesive line 236 reaches a distance away from the upper edge of the previously wound slat , connecting to the pure (canvas) fabric 122 below it. To realize this positional relationship, a constant spacing is used between the adjacent slats.
[00196] The batten fabric 144 on the resulting blind covers the entire surface of the blind, from the top edge to the bottom edge of the blind. Thus, the canvas fabric 122 does not have to be transparent and can instead be opaque or translucent. Until the rolling and treatment of the blind, the resulting blind would appear as illustrated in figure 33B.
[00197] A second alternative is illustrated in figures 34A and 34B, which is similar to figure 26 in copending US Patent Application 10,581,872, filed on June 5, 2006, entitled Retractable Shade For Coverings For Architectural Openings, which claimed priority for PCT US04 / 43043, filed on December 21, 2004, which are incorporated herein by reference in their entirety. The spacing of the slats in this type of blind is the same as in figures 33 A and 33B. Consequently, the canvas fabric 122 may again be opaque. This mode includes only the upper edge glue line 232. In addition, the roll tube 208 in this mode is positioned below the screen / slat product 162.
[00198] The configuration of this modality could be obtained by positioning the roll tube 208 flush with the upper portion of platform 176, in front of platform extension 185 193. When the magnets of platform 188, 190 carry the screen / slat product 162 for the extension of platform 185, the upper portion 164 of the rear surface of the screen / slat product 162 comes to rest on the roll tube 208. The winding that would happen in a counterclockwise movement of the roll tube when contrary to the previous examples, in which the winding happens in a clockwise movement. The rolling and heat treatment of the blind, the resulting blind would appear as illustrated in figure 34B.
[00199] Figures 35A and 35B illustrate an alternative third blind 242. Each slat has an adhesive line on the front and rear surfaces. Adhesive line 232 on the rear surface is again at the top edge of the lath screen 144. Adhesive line 243 on the front surface is on the bottom edge of the lath screen 144. This adhesive line is also applied when applying the first adhesive line 232 across the frame clapboard distribution system 150.
[00200] A second layer of canvas fabric 244 is positioned on the canvas / slat product 162 in this mode. The second layer of canvas fabric 244 is connected to the roll tube 208, in an upper portion 246 of the front surface 248 of the second layer of canvas fabric 244. This connection is through another layer of glue or another layer of double- face on the roll tube 208. In comparison with the roll tube, the second layer of woven fabric 244 will be connected to the batten fabric 144 on its surface on its back surface since the heat treatment creates this bond.
[00201] Once heat treated, the blind is seen as illustrated in figure 35B. The slats, which are substantially more flexible than in the previous examples and which, in the present embodiment, are not thermoformable at applied oven temperatures, assume an S profile when the blind is extended. Similarly, the upper portion of the second layer of the web fabric 244 also assumes a curved shape, because it is connected to its front surface of the roll tube.
[00202] In order to correctly position the second layer of fabric 244, the second adhesive line is allowed to cool on the strips before positioning the second layer of fabric 244. This cooling process occurs very quickly during the winding of the strips 144 over the first layer of canvas fabric. In this way, the second adhesive line does not adhere to the second layer of canvas fabric 244 until its temperature is generated during the heat treatment process. At that time, the second layer of canvas fabric 244 is correctly oriented against the slat fabric 244.
[00203] The product described above is similar to a commonly manufactured product, known as Silhouette (TM), manufactured by Hunter Douglas Inc., located at 2 Park Way, Upper Saddle River, New Jersey. In Silhouette, connections in the upper rear and lower front slats are created in the flat screen position. When the fabric is wrapped around the roll tube, the coaxial wrapping of the pure (screen) fabric back and front and the subsequent different circumferences on which they are wrapped, create highlights and wrinkles in the rolled state.
[00204] In contrast to Silhouette, the second connection 243 on the lower front of the batten 144 is created after winding up in the roll tube 208. In this way, none of the above highlights are created in the rolled state, resulting in a tighter build-up and Softer. However, also in contrast to Silhouette and for the same reasons as described above, the angle of the batten in the implanted position will vary more between the upper and lower portion of the blind, being more open in the lower portion due to the same coaxially induced circumference distance . This may or may not be advantageous depending on the application.
[00205] A release paper may need to be rolled together with the construction described above to prevent the immersion glue line through the cimple fabric (from mesh) and from bonding to the adjacent layers below. This can be accommodated as described with the first modality disclosed.
[00206] An additional alternative blind 250 is illustrated in figure 36. This blind 250 is similar to that illustrated in figures 35A and 35B and the slats are again non-formable by heat and substantially more flexible than in the originally disclosed modality. In this figure, several additional layers of fabric / batten product 252, 254, 256, 258 are located between the lower layer of the batten / batten product 162 and the upper layer of the batter 248.
[00207] In this modality, the batten fabric 144 is displaced in each successive layer of the batter / batter product so that in the final blind they appear to have a continuous curvature S between the opposite batter layers 122, 248. The offset is based on successively increase multiples of the width of the batten fabric. That is, layer 252 is displaced by a multiple of the width of the lath, layer 254 is displaced by two multiples of the width of the lath, etc.
[00208] Figures 37A and 37B disclose an additional alternative blind 260. This blind is obtained by helically winding only the elongated layers of batten 144 over drum 102. In the illustration, there are ten of these batten layers 262-280 . Each layer is connected to each other layer through several lines, which are applied simultaneously with the slat distribution structure 150. In the illustration, there are five such lines of adhesive 282-290 connecting the adjacent layers of the slat fabric. The spacing between adjacent lines of adhesive 282-290 is substantially the same on each batten.
[00209] Figure 37B illustrates the blind 260 manufactured according to the layout of figure 37A. The progression of the batten layer 272 through the extended blind is highlighted for illustrative purposes. The adjacent batten layers form a plurality of 292 cells. The CH height of each 292 cell is based on the axial feed rate of the batten distribution structure 150, which is a constant rate for this embodiment.
[00210] The width of each cell, which defines an S shape of the strips, is determined by the spacing, along the axis of cylinder 102, between the umpteenth adhesive line on any one strip and (n + 1) umpteenth adhesive line on the next clapboard applied. This space is also generally constant for this modality. For example, the width of each cell can be determined by measuring the CW spacing between the fourth adhesive line on the batten 280 and the fifth adhesive line on the batten 278, which is wound over the drum, immediately after the batten 280.
[00211] The slats in the upper and lower axial portions of drum 102 need to be cut in order to correctly terminate the respective upper and lower ends of the blind. In addition, the batten fabric connects with the roller tube 208 at two points, 296, 298. These connection points 296, 298 are illustrated as being above the center line of the roller tube, in the height direction, figure 37B. In addition, a weight of 300 is provided on the lower portion of the blind to help keep the blind in shape while extended.
[00212] Thus, what has been disclosed is a process and a system for forming a slatted slatted blind, which includes the structure for carrying out several stages, comprising obtaining a complete layered canvas with a thermally formable lath fabric (for example, steps S1- S2), wrapping the pure fabric in layers on a roll (for example, step S3), encapsulating the rolled roll and heat treatment of the rolled roll in order to define a shape wrapped in the batten fabric (for example example, step S4).
[00213] According to the disclosed steps, the slats are attached to the pure fabric (of canvas) before the heat treatment (for example, step S1). In such cases, the coupling is a bond, and the bond can be an adhesive. Gluing can also be, for example, stitched or obtained by welding (an alternative to step S1, not shown). In such cases, the screen / slat product is arranged before the alternative system is introduced. In this type of configuration, the drum comprises a roll of the prefabricated screen / slat product rolled out on platform 176 as needed.
[00214] Alternatively, as disclosed, the heat treatment couples the lath fabric to the complete canvas (for example, figures 35A and 35B). In such cases, the slats are coated with a thermally activated adhesive.
[00215] Furthermore, according to the disclosed modalities, thermally formable slats and pure fabric can be the same type of material, and the slats are treated with a thermally formable resin before being layered onto the pure fabric. Alternatively, the thermally formable slats and pure fabric can be the same type of material, but the slats can be treated with a thermally formable resin after being layered onto the pure fabric.
[00216] Indicated in a different way, the disclosed modalities provide a system and a process to form a slatted slatted blind including the structure capable of performing several steps comprising obtaining a layered fabric with a plurality of formable slats, including a first lath and one last lath, where each lath has a face (step S1). According to the disclosed steps, the layered fabric is wrapped in a bobbin (see figure 27; item 216, figure 30; item 50, figure 2 and step S3) having an axis such that the face of each batten is substantially parallel with the coil axis.
[00217] The steps include treating the coil in order to define a rolled shape in the slats so that the first lath is the innermost lath of the coil and has a smaller radius than the last lath which is the outermost lath of the coil (step S4). The disclosed modalities also refer to a slatted slatted blind, produced according to the disclosed process.
[00218] In other words, the disclosed modalities provide a system and a process to form a slatted slatted blind, including structure to perform the various steps, comprising obtaining a layered fabric with a plurality of formable slats (step S1) and rolling the fabric in layers of slat on a roll to create a roll of rolled fabric (step S3). The steps include treating the rolled fabric roll to define a rolled shape on each batten (step S4). According to the published measures, the rolled fabric roll is heat treated in order to define a rolled shape of each lath. The disclosed modalities also refer to a slatted slatted blind, produced according to the disclosed process.
[00219] Indicated differently, that the disclosed modalities provide a system and a process to manufacture a blind that includes the structure for carrying out the various stages, comprising a first stage of helical winding of the batten fabric over a drum, thus forming a product with slats. A second step is to move the slat product from the drum onto a platform. A third step is to roll the lath product onto a roll to form a sliding shutter. A fourth step is to move the blind from the platform to a treatment device. According to the disclosed modalities, the roll is a roll tube.
[00220] In addition, for the first stage, the lath fabric is wrapped over a canvas fabric, which is rolled over the drum, so that the lath product forms a canvas / lath product. In addition, the second step comprises moving the web / slat product from the drum to the platform during the winding of the additional web fabric in the drum. According to the disclosed steps, the canvas fabric is helically wound over the drum.
[00221] An alternative embodiment of the invention will now be addressed. This alternative is not identified here as being less or more preferable than the modality previously disclosed when circumstances may arise in which one configuration is necessary over the other. In the present modality, structural components that are the same or essentially the same as those disclosed in the previous modality will receive the same identification numbers.
[00222] Returning to figures 38 and 39, the components of the alternative modality for the 100 ’system will be revised which provide helical wrapping to the clapboard and organza fabrics on the 102’ drum. The components of system 100 'include master drum 102', which is the same overall size as drum 102 disclosed above, except as otherwise discussed in this document and is also capable of rotating on its central axis, as explained earlier. The drum 102 'has an axial groove 119' (figure 39) on the outer housing 116, arranged at the location of the axial opening 119 in the previous embodiment. It should be noted that in figure 38, the drum is wrapped with canvas / slat product, while, for comparison, in figure 39, the drum is only wrapped in canvas fabric.
[00223] The axial groove 119 'is the upper end 112 of the drum housing 116 when the drum 102' is in its initial, upper-stop-central or original position. The axial groove 119 'extends the length of the drum and has axially extending sides, left 120 and right 121, circumferentially spaced. The width of the groove 119 ', measured in the circumferential direction for the drum, will become apparent by reading this disclosure. Groove 119 'is designed to seat the magnets disclosed in this document, such as magnet 138.
[00224] A silicone sheet 302 is disposed on the drum housing 116. Sheet 302 is a sticky material and, importantly, is a glue-releasing material, meaning that the glue does not stick, which allows the fabric screen 122 remains cleanly wrapped over drum 102 'and allows cleaning of the glue-loaded screen / slat product 162. The silicone sheet 302 can be held in place by a bank of tensioners 304 connected inside the cavity of the drum 118 'and connected to the free ends of the sheet 302, which extend in the cylinder cavity 118' through, for example, an opening in the groove 119 '. The benefit of tensioner connections is the ability to replace sheet 302 if it is accidentally torn. Other structures can be considered to secure sheet 302 to outer drum housing 116. For example, one or more rigid bars could extend into seams at the ends of the silicone sheet, which fit into the grooves arranged in groove 119 '.
[00225] In this embodiment, the fabric supply roller 124, which is dimensionally the same as before, is supported on a cursor or other support structure 306F / 306R, illustrated schematically in figure 39, which is outside the drum 102 '. For example, the support structure can be supported on the floor. In the illustration, roll 124 is spaced above the upper portion 112 of the drum, and on the right side of the drum 110, although this is only one possible location. Also compatible with the support structure 306F / 306R, as illustrated in figure 39, it is a headband tape 308 disposed towards the front of the drum 104 and is connected to a front component 306F of the support structure. On the other hand, an end tape 310, packaging paper 312 and a tie tape 314 are disposed towards the rear portion of the drum 106 and are compatible with a rear component 306R of the support structure. It should be appreciated that the 306F / 306R tapes and support are schematically illustrated and the illustration is not intended to provide restriction limits on the location and configuration of these components.
[00226] Each of the tapes 308, 310, 314 can be a unilateral packaging tape. Ribbons 308, 310, 314 and paper 312 are connected to the fabric roll 124 to form a full sheet when loaded on the support structure 306, so there is no need to reconnect during each cycle of creating the canvas product / batten 162. In the connected configuration, illustrated schematically in figure 40, the junction tape 314 retains the paper 312 for the canvas fabric. In addition, the headband connects the web / slat product 162 of the roll tube 208 while winding the web / slat product 162 on the tube. During the same procedure, the end tape 310 allows to encapsulate the web / slat product 162 in paper 312 so that the web / slat product is safely wrapped during the heat treatment. When wound on drum 102 ', head and end tapes 308, 310 are arranged so that a sticky portion is exposed externally on drum 102'. On the other hand, joint tape 314 is provided so that the sticky side is opposite drum 102 ', with approximately half of the sticky surface, holding paper 312 and half holding the canvas fabric 124. In addition, where the paper and the canvas fabric overlap, the seam tape 314 and the canvas fabric press the paper 314. As a result, a lower portion of the batten fabric 144, at the bottom of the batten / batten product 162, will sit on top junction tape 314 instead of paper 312 or canvas fabric.
[00227] As partially illustrated in figure 41, the web fabric supply roll 124 is supported on a roll bar 125 'which is able to move vertically, substantially freely, on left and right support structures, 306R, 306F. Adjacent vertically to the tissue roll 125 'is a support roll 318, which is attached to the support structure 306 and supports the tissue roll 124 along its length during unwinding. The fabric material is snaked from the supply roll 124 over the support roll 318 and then carried downstream (in the feed direction) to the surface of the drum. A brake 316 (figure 39), like a web belt, is arranged at one end of the support roll 318 so that the brake is independent of the diameter of the tissue roll on the tissue supply roll 124, so the tension will be uniform throughout the process of unrolling the roll fabric. A second support roll (not shown) could be provided, with the tissue roll 124 nestled between the two support rollers, as with typical surface unwinding configurations.
[00228] As can be appreciated, the drum 102 'has an axial length that is greater than the axial length of the web supply roll 124 as connected to the head tape 308, end tape 310 and packaging paper 312 This allows the drum housing 116 to support the height of the entire length of the canvas fabric 122 and related materials during the manufacturing process.
[00229] As shown in figure 42, a vertically movable feeding magnet 320 is provided between the supply roller 124 and the drum 102 ', adjacent and above the upper-stop-central position for the drum 102'. The feed magnet 320, as well as the other magnets used in this process, as indicated, can be electromagnets or permanent magnets, and the canvas fabric is fed between the feed magnet 320 and a metal bar 322 before reaching drum 102 Unlike the other magnets and bars with the modalities, the bar 322 is held in place against the feed magnet 320, for example, because it is substantially permanently attached at ends opposite the magnet 320.
[00230] A proposed amount of fabric 324 is allowed to hang freely towards the downstream of the feed magnet 320, and a front portion of this proposed fabric will serve as the guiding edge of the fabric 134 when the fabric is wrapped in the drum. 102 '. Consequently, the predefined proposed fabric length allows the guiding edge 134 of the fabric to sit against the drum magnet 138 when the feed magnet 320 is advanced to the drum 102 ', while the drum 102' is in the original position, or upper- central-stop. With the predefined proposed amount of fabric 324, it is not necessary to extract an initial amount of fabric supply roll 124 each time a new fabric sheet 122 (figure 43D) is drawn onto the drum between product sheet creation cycles screen / clapboard 162.
[00231] Before discussing the process of wrapping the fabric over the drum 102 ', it should be noted that in this embodiment, as illustrated in figures 39 and 42, the drum 102' includes a main drum magnet, which is the drum magnet 138 located disclosed in the previous modality. The main drum magnet 138 is essentially flush with the drum housing 116, on the right side 121 of the axial groove 119 '. In addition to the main drum magnet 138 is a drum magnet on the right 330 located essentially where the guide roll 132 was located, on the left 120 of the axial groove 119 ’. As with the main magnet 138, the magnet on the right 330 is essentially flush with the drum housing 116 and is positioned under the right edge of the fabric 326. The groove walls 119 'or supports that could be mounted in the drum cavity provide a stopped support for drum magnets 138, 330. An interval between the magnets on the right and the main one need only be the one that allows the fabric to be cut, extending over the groove 119 ', such as the canvas / slat product 162, as discussed with the previous modality.
[00232] To wrap the drum 102 with a sheet of fabric 122, as shown in figures 43a to 43d, and start with figure 43a, the feed magnet 320 vertically advances downwardly to the drum 102, positioning the portion main part of the proposed fabric 324 against drum magnet 138. Gantry magnet 186 deposits a metal bar from the orientation edge, which is the metal bar 140 disclosed in the preceding embodiment, on the drum magnet 138, which blocks the orientation edge of the fabric screen 134 against drum magnet 138. It should be noted that the metal bar has a length that is at least the same as the axial length of the screen supply roll 124 along with paper 312 and head and end tapes 308 , 310 to secure the entire length of the guiding edge 134 of the fabric sheet 122.
[00233] As shown in figure 43b, once the leading edge of the bar 140 is in place, the feed magnet and bar 320, 322 disengages while the fabric 122 is being rolled over the drum by turning counterclockwise 102 '. During winding, the support structure 306RF advances in the axial direction (figure 41) in order to helically wrap the fabric 122 over the drum 102 and provide the axial displacement spacing 160 (very exaggerated in the figures) as measurable between the fabric , positioned on the leading edge magnet and the right edge magnet, as shown in figure 39.
[00234] When drum 102 'returns to the upper-stationary-central, as shown in figure 43c, a metal bar from the right edge 334 is deposited by the gantry magnet 186 against the magnet from the right edge 330, locking the canvas fabric 326 against drum magnet 138. For your convenience, metal bars 140, 334 are interchangeable. At this point, the fabric extends over the axial groove 119 ', the right edge magnet and the feed magnet 324.
[00235] As illustrated in figure 43d, the supported gantry cutter 168, which is the only cutter in the present embodiment, passes along the axial groove 119 ', between the main edge magnet 138 and the right edge magnet 330 so supplying the web 122 with a right edge 326, which extends in the axial direction to the drum 102 '. The right edge 326 at this point in the process is not in the previously disclosed modality. The fabric 122 of the drum 102 'at this point appears as shown in Figure 39. In addition, another proposed predefined amount of fabric 324 will now be allowed to hang downstream from the feed magnet 320. At this point, the feed magnet 320 retracts vertically, upwardly, from the drum 102 'and the feeding magnet 320 surrounds the magnetic bar 322 to prevent additional feeding of the canvas fabric, for example, when the clapboard material 144 is wound over the drum covered by the fabric 102 '.
[00236] The clapboard material is deposited in essentially the same way as with the modality previously disclosed by structure 150 for the distribution of clapboard 144 against the screen tissue 122. As identified here, but applicable to the previously disclosed modality, bonding is a rapid crystallization of copolyester used in the above modality. Copolyester glues tend to remain sticky for a period of time after they harden until they crystallize. After the glue has crystallized, it will not be sticky until it is brought to its melting point, about 383.2 degrees K (230 degrees F). The glue in the modality disclosed above takes about 24 hours to crystallize, during the time that it remains sticky and is made even more sticky by heat treatment temperature at 349.8 degrees Kelvin (170 degrees Fahrenheit).
[00237] More specifically, the glue in each modality is pushed completely although pure in the drum winding process and cools against this textured silicone belt. The glue is thus present on the other side of the canvas fabric 122. This complete impulse provides the best bonding strength, but with gluing in the previously disclosed modality, it also means that the glue is attached to the material layer below the curled state when heated at a heat treatment temperature of 349.8 degrees Kelvin (170 degrees Fahrenheit) causes blockage when the shadow is unrolled. Therefore, the release paper noted above was used.
[00238] The glue currently described crystallizes in seconds. This means that when the drum roll is complete, it is crystallized and the lining is not necessary to prevent blockage. This glue is from the same supplier, EMS-GRILTECH, from Sumter, South Carolina, USA, and is called Griltex D 1442E.
[00239] Note that when external grade materials are used to form the shadows, the slat bending the temperature is additionally approximately 394.3 degrees K (250 degrees F). Thus, even with EMS-GRILTECH glue, a release liner is required. In such circumstances, the release paper roll, illustrated schematically as 335, is supported by the slat distribution structure 150 as disclosed in the previous embodiment. In addition, as with the preceding embodiment, the release paper could be large enough to cover the entire surface of the web 122. In this case, a base layer of the web could be rolled between the web 122 and the drum 102 'or on the canvas 122 after the complete application of the batten fabric 144. The length of the release paper can be obtained from a roll of material compatible with the support structure 306 and rolled over the drum 102, together with the winding of the canvas fabric 122.
[00240] The slat distribution structure in this modality, instead of including several spring metal clamps, includes several 336-342 rubber rollers as several clamps, as shown in figure 44. The 336-342 rollers are arranged accordingly with respect to the circumference of the drum, they are able to be pressed against the outer circumference of the drum 102 'and are downstream of the guide rollers 152, 154. The frame 343, for each of the rollers to be connected, positions the rollers in the same arc as the outer diameter of the drum 102 'and applies pressure to position the batten fabric 144 against the fabric fabric 122 and firmly presses the adhesive 148 on the fabric fabric 122 for reasons disclosed with the use of tweezers. The spacing between each roll is less than the width of the axial groove 119 'and four rollers ensure that at least three rollers are always on the surface of the drum 102', that is, when one of the rollers is over the groove 119 '. This prevents unwanted vibrations when the rollers pass over the 119 'groove.
[00241] The process of rolling the strips 144 over the canvas fabric 122, which forms the canvas fabric / slat 162, presses the metal bars 140, 334 on the respective magnets for the leading edge and right edge 138, 330, between the web / batten fabric 162. In addition, as illustrated in figures 45 and 46, the batter winding process winds the batter fabric 144 continuously over the drum housing 116, for example, circumferentially through the axial groove 119 'in the drum housing 116. As with the previous embodiment, the supported gantry cutter divides the batten fabric 122 to create the batten / batten product 62.
[00242] Moving now to figure 47, a review of the system components necessary to remove the screen / slat product from the drum, rolling the screen / slat product over a pipe 208 to form an elongated blind 216, and heat treatment of louver to define the shape of the slats 144. In this modality, as illustrated in figures 47 and 48AB, platform 176 'has global dimensions, which are similar to the previous modality, except that platform 176' does not have platform magnets (188 , 190) due to the dissociation of the process of winding the web 122 of the drum 102 'from loading the web / slat product 162 to the platform 176'.
[00243] Gantry structure 170, which is used in the preceding embodiment, is illustrated schematically, in relation to platform 176 ', which includes a front standing frame 344, a rear standing frame 346 and a transverse gantry element 348, which is capable of run in bands on the fixed structures between the left end 182 of platform 176, right end 184 of platform 176e on drum 102 '. Gantry transverse element 348 includes the supported gantry magnet and supported gantry cutter (cutter shown in figure 47). The standing gantry structures can be supported on the floor or the portion of the platform structure.
[00244] In figure 48A, the gantry magnet drags the magnet from the leading edge to the left end 182 of platform 176 'while the drum rotates simultaneously to remove the screen / slat product 162, as disclosed in the preceding embodiment. As the unwinding of the web / slat product 162 is dismembered from wrapping the web 122 over the drum 102 ', the wrapping of the new web 122' over the drum 102 is not occurring during this process. Since the screen / slat product 162 has cleared drum 102 ', as shown in figure 48B, the front portion 350 of the transverse gantry element 348 further advances from the rear portion 352, for example, accelerating, so as to make the upper and lower edges 164, 166 of the screen / slat product 162 squared with the platform 176 '.
[00245] As shown schematically in figure 49, this relative movement is possible, for example, providing the front portion and the rear portions 350, 352 of the gantry element 348 running with independent motors 354, 356, which are adjusted accordingly. To limit the torque applied to the gantry, the front of the displacement element 350 can be connected to a first plate 358 which is connected to a second plate 360 to an axis 361. In addition, the second plate 360 slides over the front gantry support 344 and is driven by a front motor 354. On the other hand, the rear portion of the displacement element 352 can be connected to a third plate 362, which is hingedly connected to a fourth plate 364 through a groove 366, which can be bent to coincide with the oscillating movement of the gantry displacement element 348. In addition, the fourth plate 364 slides over the rear gantry element 346 and is driven by the rear motor 356.
[00246] It should be appreciated that in figures 48A / B, the angular displacement shown at the limits of the screen / slat product, such as between the upper edge 164 of the screen / slat product and the front end 178 of the platform in figure 48A, and insofar as the connections of the screen / batten product out of adjustment are very exaggerated. In practice, for example, such an angular displacement from an adjustment configuration would be less than one degree, due, for example, to the corresponding angular displacement resulting from the winding of fabric and lath fabric helically over the drum.
[00247] Since the upper and lower ends 164, 166 of the screen / slat product 162 (in relation to platform 176 ') are fitted with platform 176', the screen / slat product 162 is fixed to platform 176 ' and remains in the same location until winding over tube 208. As illustrated in figure 50A, the magnet of gantry element 186 (more clearly illustrated in, for example, figure 14) is retracted and the cutting device 168 is positioned from the gantry element to engage the screen / slat product 162, on the right side of the main edge metal bar 140. In addition, at this point on platform 176 ', a groove on the left side of platform 368 is provided, extending from from the front 178 to the rear 180 of the platform 176 ', which allows the gantry cutting device 168 to engage the screen / slat product 162 without cutting the platform 176'. Once cut, as illustrated in Figure 50B, the gantry magnet 186 then engages the metal bar of the main edge 140 and moves to the tray 192 located at the left side exit of the platform 176 '. Tray 192 can be tilted to allow the main bar to slide away from platform 176 'in a container that can hold so many bars, when they accumulate over a long period of time, such as a day or more of continuous manufacture of blinds.
[00248] As shown in figure 50C, the gantry element 170 then moves to the right side 184 of the platform 176 'and the cutting device 168 engages the screen / slat product 162 on the left side of the metal bar main edge 322. In addition, at this point on platform 176 ', a groove with the right side of platform 370 is provided, extending from front 178 to the rear 180 of platform 176', which allows the cutting of the frame element 168 engages the screen / batten product 162 without cutting the platform 176 '. The magnet of the gantry element 186 then engages the metal bar of the leading edge 322 and moves to the tray 192.
[00249] It should be appreciated that in this embodiment, since the gantry cutting device 168 has the ends cut off from the screen / slat product 162, the screen / slat product is fully adjusted with the platform 176 '. At this point, the fabric / slat product is rolled around the tube as with the previous embodiment, with the same structure to be used, such as the structure illustrated in figures 28 to 30 and described above, such as the roller compartment 206 , except that this structure is now adjusted with platform 176 '. One difference is that the paper and end tape that already involve the shading of the rolled canvas / slat roll for the heat treatment process, so that the structure noted above 222 can encapsulate the blind, including the tape holder 224 and 226 tape roll disclosed, are not required. Once rolled, the blind is dropped into the oven as previously indicated.
[00250] Furthermore, illustrated in figure 51, however applicable to both modalities, the platform 176 'includes a series of openings 375 under vacuum pressure, with the associated piping (not shown) to be supplied under the platform 176 '. The openings add tension to the fabric / batten product while being wrapped over the tube, allowing for a smoother wrapping of the fabric over the tube. Only one series is shown as parallel series although many of these openings are provided in order to maintain the appropriate pressure throughout the winding process.
[00251] In relation to figure 52, structure 376 is illustrated for the supply of metal bars for platform 176 '. Structure 376 includes a groove or groove 377 manufactured on platform 176 ', for example, by routing, receiving and storing a metal bar which will later be used as one of the main and right metal bars, as needed. The groove 377 is embedded in the platform 176 'so that the metal bar fitted on it does not interfere with the other operations that occur on the surface platform 176', including the magnetized gantry magnet 168 by dragging the screen / slat product 162 out of the drum 102 ', above platform 176'. In addition, the groove 377 is only slightly wider in width (from left to right in relation to platform 176 ') so that the placement of the metal bar is correct, that is, adjusted with platform 176', for correct positioning of tightening and subsequent by the gantry magnet 186. In the illustrated embodiment, the groove 377 is upstream of the screen / slat product 162 when it is seated on the platform 176 '.
[00252] Outside platform 176 ', frame 378 includes a container for storing one or more of the metal bars and supplying one bar at a time to the groove of platform 377. Container 378 is fixed and supported, for example, on the ground, such as by supports 377, or propped from platform 176 '. The container 378 has a base 380, which is sized to accommodate a metal bar. The container additionally includes, with respect to platform 176 ', a rear wall 382, which is located adjacent and opposite platform 176', a front wall 384, which is remote from platform 176 ', a left side wall 386, only a portion of which is illustrated, and a right side wall 388.
[00253] The side walls 386, 388 do not need to be continuous, but they can have openings or be made from spaced segments that allow to easily position and stack the various metal bars inside the container 378. The height of the walls 386, 388 is in such a way as to allow the storage container 30 or more stacked metal bars, for example, for a whole day or more continuously to manufacture blinds 216. If necessary, guides, for example, a set of one or more molded plastic bars 379 , can be connected to the inside of the side walls 386, 388, or it can even form the side walls, on each side of the container 378, to keep the metal bars properly aligned inside the container. For simplicity, only a set of such bars is shown, against the right side wall 388.
[00254] The rear wall 382 of the container is essentially solid, except for an opening 390 in its lower portion (lower portion, in relation to gravity) of the rim. Opening 390 has the same area as the cross-sectional shape of a metal bar, when one or more metal bars are stacked inside container 378 and pressed against the front wall 382. This ensures that only one metal bar at a time can be supplied or distributed from container 378 and, consequently, container 378 can effectively store the various metal bars.
[00255] The front wall 384 has an opening 392 at its lower end, which may be smaller than the opening 390, provided to fit a protrusion 394 connected or formed to a slide element 396. The slide element 396 is in the portion top of an air-fed rail 398, which is stopped and supported, for example, with the same structure to support the container 378. The protrusion 394 is adapted to be positioned against a front edge 400 (in relation to the platform 176 ' ) of a metal bar, which is seated on base 380 of container 378. However, protuberance 394 is not dimensioned to reach the metal bars stacked on top of a metal bar positioned against base 380. In addition, base 380 the container 378 has a rail 402, which extends from the front to the rear walls 382, 384, which allows the protuberance 394 to travel the entire length of the container 378 through the sled 396.
[00256] Based on the above structure, air sled 396 is activated, as needed, so that protrusion 394 pushes or pushes the smallest metal bar in a stack of such bars out of the front opening 390 of container 378 and dismisses the metal bar on the platform 377 batten. Gravity will fall on the next metal bar in place when the sled 396 returns to its starting position, outside the rear wall 384 of container 378.
[00257] Finally, referring to figure 53, a rotating magnet 404 is provided, which can be integral with the respective modalities or alternatives above. The rotating magnet 404 is connected to a rotating arm 406 which rotates around a pivot point 408 on the platform 176 '. The articulating magnet 404 is the same size and shape as the drum magnets and the oscillation of the rotation arm allows the articulating magnet 404 to be positioned flush with the platform 176 '(shown), which is its resting position, or against the magnet rear drum 330.
[00258] The rotating magnet 404 is used when the configuration of the fabric / batten 162 is so that it has to be positioned on the platform 176 'so that the material opposite the drum 102' is facing upwards on the platform 176 'instead of down as previously described. Thus, the pivotable magnet 404, once pivoted against the magnet on the right 330, will wrap around the right edge metal bar 334, which is glued to the inside of the screen / slat product 162 (not shown in figure 53). At this point, the magnet on the right 330 will be deactivated, and the rotating magnets 404 will turn back to their starting position. Gantry magnet 186 then takes the metal bar from the right edge 334 of rotating magnet 404 and passes to the left end 182 of platform 176 ', while drum 102' simultaneously rotates clockwise to let out the screen product / slat arranged on drum 102 '.
[00259] The differences between the first and alternative modalities can be understood by examining the figures directed to the stages of the process for the first modality. Specifically, figure 54 represents figure 6 in the alternative mode. Due to the dissociation of the unwinding process from the drum fabric / slat product and the winding of additional fabric fabric onto the drum, step S2 reads “move the fabric product / drum slat to the platform and excludes“ while winding helicoidal the additional canvas fabric in the drum ". In addition, the alternative mode does not include the S5 step of" synchronizing the steps, so that the first formed shutter, from the first formed canvas / slat product, is moved to from the platform to the heat treatment device, substantially, when the second formed web / slat product is moved from the drum to the platform ".
[00260] Furthermore, with reference to figure 55, which represents figure 13 in the alternative mode, it should be noted that, while steps S104 and S108 refer to an axial opening in figure 13, steps S104 'and S108' refer to an axial groove. This is because an opening is not required in the alternative mode with the screen supply roller located outside the drum. In addition, step S106 'of layered release paper in the alternative mode is only necessary when outer grade materials are used to form the shadows, due to the use of the alternative glue. In addition, due to the decoupling of the unwinding process of the web / slat product from the drum and winding of the additional web fabric on the web, step S108 'in the alternative mode provides "to maintain a front edge and a rear edge of the fabric against the drum, on opposite sides of an axial groove, between the respective metal elements and drum magnets ". That is, the right edge of the canvas is now held against the drum by a magnet. In addition, step S109, "avoiding the supply of the canvas fabric, arranged inside the drum, from the supply of the additional canvas fabric through the axial opening is not necessary in the alternative mode" is not included.
[00261] With reference to figure 56, which represents figure 24 in the alternative mode, step S2 'of "moving the screen / slat product from the drum to the platform" had already been identified, above, in comparison with the step S2. Due to the decoupling of the unwinding process of the web / slat product from the drum and winding of the additional web in the drum, the alternative mode does not include: step S203 of "rotating the drum once in the second direction;" step S204 of "dragging, through the axial opening in the drum, the additional canvas fabric from the canvas fabric source", or step S208 of "blocking the canvas product / lath on the magnet of the second platform with the second metallic element , the second magnet being located between the leading edge and the opposite end of the platform ". In addition, "step S209 Goto” has been transferred to figure 59, to be dealt with below. As for step S208, the platform magnets are not used in the alternative mode. Although, it should be noted that the platform magnets can be used in another alternative mode to transport the screen / slat product over the platform, as needed.
[00262] In addition, step S205 'recites "attaching the edge of the screen / slat product, through the first pressed metal element and the movable magnet". This reflects the fact that in the alternative mode, there are two metal bars, to hold the leading edge and the right edge, respectively, of the canvas fabric in place on the drum. In addition, step S206 'recites' transferring the movable magnet on the platform and away from the drum so that the upper edge 164 and a lower edge 166 of the screen / slat product, which make an angle to the front of the platform, transfer at a substantially equal rate ". Step S207 'recites' once the web / slat product has substantially cleared the drum, transferring one of the upper and lower edges 164, 166 of the web / slat product 162 or at an additional or different rate than the other one. upper and lower edges 164, 166 of the web / slat product so that the upper end 164 of the web / slat product is substantially parallel with a front portion of the platform ". In other words, step S207 'aligns the top edge 164 of the screen / batten product with the front edge 178 of platform 176'.
[00263] With reference to figure 57, which represents figure 25 in the alternative mode, this step represents the process of winding the canvas product around the drum. In the alternative mode, this step follows S402 instead of step S204, as with the first mode. In addition, due to the uncoupling of the unwinding process of the screen / slat product from the drum and winding of the additional screen fabric in the drum, the alternative mode recites the step steps S210 of “positioning a leading edge of the screen fabric. on the first side of the axial groove, in relation to the first drum magnet, and the positioning of the first metallic element thereafter to hold the leading edge of the canvas fabric against the drum; "and step S212 'of" winding the drum by a rotation thereby dragging the canvas fabric from a canvas fabric source. "As seen in the figure, step S212' of winding the drum comprises step S216 ' of, while winding the drum by one rotation, moving the source of the fabric from a parallel direction with a longitudinal axis of the drum so as to helically wrap the fabric fabric over the drum, and in which, after winding the drum by one rotation, the canvas fabric circumferentially extends along the second drum magnet and along the axial groove, between the first drum magnet and the second drum magnet ".
[00264] Step S209 'in the alternative mode recites "winding the fabric fabric helically over the drum." The term "additional" has been removed as the same process for winding the fabric fabric is applied in the alternative modality either in the first application of the fabric fabric or any subsequent order, due to the uncoupling of the process of unwinding the fabric product / batten from the drum and winding the additional canvas fabric over the drum. In addition, step S209 'includes the initial indicator of "step 217 GoTo, which is illustrated in figure 58. That is, figure 58 includes step S217 of" attaching a headband to an upper edge 164 of the fabric fabric , which is thus wrapped around the drum, with the canvas fabric "and step S218 of" attaching the wrapping paper to a lower edge of the canvas fabric, and attaching an end tape to a lower edge of the wrapping paper , which are thus rolled over the drum with the canvas fabric, to encapsulate the shutter after the canvas / slat product is rolled over the roll tube ".
[00265] Returning to figure 57, step S209 'additionally includes step S213 of “positioning the second metallic element in the canvas fabric on the second side of the axial groove, in relation to the second drum magnet, to maintain the canvas fabric after of this against the drum. In addition, step S209 'includes step S214' of "cutting the canvas fabric between the axial groove along a direction that is parallel with the longitudinal axis of the drum". At this point, the process can return to step S209 'of winding the canvas fabric helically over the drum.
[00266] With reference to figure 59, which represents figure 31 in the alternative mode, this step represents the process of "winding the canvas product / slats the roll tube to form the slatted slatted blind, which provides the slats with the spiral curvature profile ". The main difference in this process is the exclusion of step S304 of "aligning the roll tube with the screen / slat product, which is moved at an angle on the platform", due to alignment step S207 '. In addition, as described in step S303 ', the winding process encapsulates the blind, due to the inclusion of the wrapping paper and end tape introduced in step S218.
[00267] With reference to figure 60, which represents figure 32 in the alternative mode, the stage S401 of encapsulation of the blind is now provided in stage S303 ', so that stages S401, S403 and S404, directed to encapsulation according to the first modality described, are no longer necessary. However, as indicated, with the process complete in step S402, the next step would be to return to step S209 'of winding the additional canvas fabric helically over the drum. In fact, it should be appreciated that, due to the decoupling of the unwinding process of the canvas / slat product from the drum and winding of the additional canvas fabric in the drum, as long as the received amount of canvas fabric, connected with the tape head, end tape, and packaging paper is connected and supplied through the feed magnet 320 and metal bar 340, a reasonable starting point in the manufacturing cycle a slide shutter in the alternative mode is step S209.
[00268] Although several embodiments of the present invention that have been disclosed above, the present invention should not be taken to limit them. In fact, it is to be understood that one skilled in the art will be able to conceive of various modalities, which, although not specifically shown or described, will incorporate the principles of the present invention and will be within its scope. The above modifications would be obvious to those skilled in the art, but would not make the invention so modified beyond the scope of the appended claims.

权利要求:
Claims (14)
[0001]
1. The manufacturing process for a slatted slatted blind, characterized by the fact that it comprises: a first step (51) of helically winding the batten fabric (144) thermally formed around a cylinder (102), thus forming a product of slat, a second step (52) of moving the slat product from the cylinder to a platform (176); a third step (53) of winding the slat product around a roll tube (208) to form the sliding blind; and a fourth step (54) of moving the platform shutter (176) to a heat treatment device (230).
[0002]
2. Process, according to claim 1, characterized by the fact that: in said first step (51), the slat fabric (144) is wrapped over a canvas fabric (122), following a step of helically wrapping the fabric screen (122) around the cylinder (102), so that the slat product forms a web / slat product.
[0003]
3. Process according to claim 2, characterized by the fact that the first step (51) additionally comprises the steps of: turning the cylinder (102); apply, through the structure of distribution of the canvas (150), the clapboard fabric (144) on the canvas fabric (122); advance the structure of distribution of the batten between opposite axial ends of the cylinder at a rate that defines a spacing in height between the battens.
[0004]
4. Process according to claim 3, characterized by the fact that the step of applying the lath fabric (144) on the canvas fabric (122) additionally comprises the steps of: coating said lath fabric (144 ) with at least one application of adhesive (148), including a first application of adhesive (148) on an upper edge of a back surface of the batten fabric (144); and pressing the adhesive coating on said edge of the back surface of the batten on the canvas fabric (122).
[0005]
5. Process according to claim 4, characterized by the fact that the step of applying the lath fabric (144) on the canvas (122) also comprises the step of layering release paper with the lath fabric ( 144).
[0006]
6. Process according to any one of claims 2 to 5, characterized by the fact that: said second step (52) further comprises moving the web / slat product from the cylinder to the platform while helically wrapping the web fabric additional around the cylinder; and the process also comprises the step of: synchronizing the first four steps so that a blind formed first, formed from a screen / slat product formed first, is moved from the platform (176) to the heat treatment device (230), when a screen / slat product formed afterwards is moved from the cylinder (102) to the platform (176).
[0007]
Process according to any one of claims 2 to 6, characterized in that said third step (53) additionally comprises the steps of: obtaining a tube from the roll (208) from a tube supply roller (206); position the roll tube (208) against the screen / slat product on the platform (176); and rolling the screen / slat product around the roll tube (208), thus forming the blind.
[0008]
8. Process according to claim 7, characterized in that the step of positioning the roll tube comprises: gravity filling a roll tube (208) from a roll tube compartment (206) on a fixed jaw ; pivot the fixed jaw (205) around a point, so that the roll tube (208) is positioned on the screen / slat product.
[0009]
Process according to any one of claims 2 to 8, characterized in that it additionally comprises positioning an additional web layer (196) against a front surface of the web / slat product before the third step of rolling the web. screen / slat product around the roll tube (208).
[0010]
Process according to any one of claims 2 to 8, characterized in that it additionally comprises positioning at least one additional layer of screen / slat product (196) against a front surface of the screen / slat product before the third step of wrapping the web / slat product around the roll tube (208).
[0011]
Process according to any one of claims 1 to 10, characterized by the fact that: said third step (53) provides the slats with a spiral curvature profile; and said fourth stage (54) includes treating the blind by heat, which defines the spiral curvature profile in the clapboard fabric (144).
[0012]
12. Process according to claim 11, characterized by the fact that said step of winding the web / slat provides a curvature on each side of the edge of the slat defined by a segment of a spiral curve in which the slat is positioned when the blind is retracted.
[0013]
13. Process according to any one of claims 1 to 12, characterized in that the slats are narrow in comparison to the height of the screen, so that, in the slatted slat blind, adjacent slats are disconnected from each other and an open screen forms between them.
[0014]
Process according to any one of claims 1 to 13, characterized in that the heat treatment device is an oven (230).

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法律状态:
2018-04-10| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2019-09-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

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2020-01-28| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|

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2020-05-05| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|

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2020-08-18| B09A| Decision: intention to grant|

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2020-10-27| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/04/2011, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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US32516910P| true| 2010-04-16|2010-04-16|

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US61/325,169|2010-04-16|

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PCT/US2011/032624|WO2011130593A2|2010-04-16|2011-04-15|A process and system for manufacturing a roller blind|

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