• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    method for folding disposable suits absorbent suits in one medium. a method of folding disposable absorbent suits involves providing a garment defining a first and a second side waist region, a central waist region positioned between them and a region of the genital area longitudinally below the central waist region. in certain configurations, the method also includes folding the suit over a dotted line extending transversely in order to bring the region of the genital area into a relationship superimposed on the central region of the waist; forming a passage with a base and a first and a second side wall; positioning the central waist area in the passage; and, while the piece is in the passage, folding the piece over a first and a second dotted lines that extend longitudinally, in order to position the first and second regions of the waist, respectively, over the central region of the waist. the first and second dotted lines are adjacent to the first and second side walls, respectively.
    公开号:BR112014011267B1
    申请号:R112014011267-3
    申请日:2012-10-05
    公开日:2020-12-15
    发明作者:Bradley Schoon；Brian R. Vogt；Stephen A. Kolasinski
    申请人:Kimberly-Clark Worldwide, Inc；
    IPC主号:
    专利说明:

    HISTORIC
    [001] People depend on disposable absorbent suits in their daily lives, including those aimed at adult incontinence problems, urinary incontinence pants, training pants and diapers. Many manufacturers seek to best meet the needs of users of such products. With certain products, such as underwear for adult incontinence and pants for urinary incontinence, it is important that the suits look as close as possible to “normal” underwear, to provide a greater sense of normality for users who suffer from incontinence. In addition, buyers and users of such products are often embarrassed by their problems and the fact that they have to buy products to deal with their incontinence problems.
    [002] Currently, the most common method of obtaining underwear aimed at incontinence problems is to purchase large quantities of these suits packed in packages. Usually, the costumes are folded in order to better fit the packaging. Folding the costumes well is important for several reasons. First, disposable absorbent suits are usually manufactured at high speed; stacks of folded pieces are pushed quickly and repeatedly into packaging materials, such as flexible plastic bags. Folding the suits irregularly can result in deformed or lumpy stacks of folded pieces, which interferes with the automatic packaging operation. Second, deformed or lumpy stacks of folded parts result in deformed and irregularly filled packages, which can cause the packages to become unstable on shelves in retail stores, as well as giving the consumer the appearance of low quality. Third, by removing the folded suits from inside the bags, without order and at random, consumers can have a negative impression of the quality of the product. In fact, folding poorly and randomly can, in some cases, impact the performance of the absorbent suit, creating creases and cracks in the fluid-absorbing core at inconvenient locations.
    [003] Conventional methods for folding disposable absorbent suits are less than ideal. Therefore, what is needed is an improved method for folding disposable absorbent suits in order to provide uniform, predictable and controlled folds in high-speed manufacturing processes. Summary of the invention
    [004] The present invention describes a method for folding disposable absorbent suits into the shape of pants. In one configuration, the method involves providing pieces with an opening in the waist and two openings in the legs, with the suit defining a longitudinal direction and a transverse direction, a lateral region of the waist adjacent to the first lateral edge, a second lateral region of the waist adjacent to a second lateral edge, a central region at the waist positioned transversely between the first lateral region of the waist and the second lateral region of the waist, and a genital region longitudinally below the said central region of the waist. The suit also includes an absorbent core. The method of this configuration also includes folding the suit over a foldable line extending transversely, in order to bring the genital region into the overlapping relationship with the central region of the waist; creating a passage formed by the base, a first sidewall and a second sidewall, the passage extending from the first sidewall to the second sidewall; placing the central waist area in the passage; and folding the clothes over a first folding line extending longitudinally, the first folding line being adjacent to the wall on the first side, and folding the clothes over a second longitudinal folding line, in order to position the second lateral waist region on the central waist region, with the second folding line adjacent to the wall on the second side, so that both folding steps occur while the central waist region is in the passage.
    [005] In another configuration, the method defines a machine direction and a cross direction. The method involves providing a suit with an opening at the waist and two openings at the legs, with the garment defining a longitudinal direction and a transverse direction, the garment defining a first lateral region adjacent to the first edge, a second lateral region of the adjacent waist to a second lateral edge, a central region in the waist positioned transversely between the first lateral region of the waist and the second lateral region of the waist, and a genital region longitudinally below said central region of the waist. The suit also includes an absorbent core. The method of this configuration also includes folding the suit over a foldable line extending transversely, in order to bring the genital region into a relationship superimposed on the central region of the waist; transporting the part in the machine direction, so that the longitudinal direction of the part is parallel to the machine direction during transport; creating a passage that extends over the direction of the machine, and the passage formed by the base, a first side wall and a second side wall, the passage extending from the first side wall to the second side wall; with the width of the passage extending in the direction parallel to the transversal direction of the machine; placing the central waist area in the passage; and folding the piece over a first foldable line, in order to position the first lateral region of the waist over the central region of the waist, the first foldable line adjacent to the first side wall and folding the piece over a second foldable line extending longitudinally , in order to position the second lateral region of the waist over the central region of the waist, with the second foldable line adjacent to the second side wall, in which both folding steps occur while the central region of the waist is in the passage.
    [006] In another configuration, the method defines a machine direction and a cross direction. The method involves providing a suit with an opening at the waist and two openings at the legs, with the garment defining a longitudinal direction and a transverse direction, the garment defining a first lateral region adjacent to the first edge, a second lateral region of the adjacent waist to a second lateral edge, a central region in the waist positioned transversely between the first lateral region of the waist and the second lateral region of the waist, and a genital region longitudinally below said central region of the waist. The suit also includes an absorbent core. The method of this configuration also includes folding the suit over a foldable line extending transversely, in order to bring the genital region into the overlapping relationship with the central region of the waist; transporting the part in the machine direction, so that the transversal direction of the part is parallel to the machine direction; providing a passageway that extends along the direction of the machine, from the base from the first sidewall to the second sidewall, with the wide passageway extending parallel to the direction of the machine, the base of the passageway moving in machine direction; positioning the central waist area in the passage; and folding the garment over a first folding line extending longitudinally, in order to position the first lateral waist region over the central waist region, with the first folding line adjacent to the first side wall, and folding the garment over a second folding line adjacent to the second side wall, in which both steps occur when the central waist area is in the passage. Brief description of the illustrations
    [007] Figure 1 illustrates in a representative way a plan view of a configuration of a disposable absorbent pants, suitable for use, combined with certain configurations of the present invention, in a longitudinally stretched condition and applied flat, before joining the regions front and back of the waist, and showing the product surface that is facing the user when dressed.
    [008] Figure 2 illustrates in a representative way a frontal perspective view of the example of the configuration of Figure 1, presented in an entirely assembled way.
    [009] Figure 3A illustrates in a representative way a flat front view of the disposable absorbent pants of Figure 2, shown in a relaxed condition and arranged on a flat area.
    [010] Figure 3B illustrates in a representative way a flat front view of an alternative configuration of disposable absorbent pants, shown in a relaxed condition and arranged on a flat area
    [011] Figure 4A represents a flat front view of an intermediate fold configuration of the disposable absorbent pants of Figure 3, shown in a cross-tensioned condition, with a longitudinal fold.
    [012] Figure 4B illustrates in a representative way a flat rear view of an intermediate fold configuration of the disposable absorbent pants of Figure 3, shown in a cross-tensioned condition, with a longitudinal fold.
    [013] Figure 4C illustrates, in a representative way, a flat front view of a fully folded configuration of the disposable absorbent pants of Figure 3, with both side regions of the waist folded under the central region of the waist.
    [014] Figure 4D illustrates in a representative way a flat rear view of a fully folded configuration of the disposable absorbent pants of Figure 3, with both side regions of the waist folded over the central regions of the waist.
    [015] Figure 5A illustrates in a representative way a flat front view of an alternative intermediate configuration of the disposable absorbent pants of Figure 3, shown in a cross-tensioned condition, with a longitudinal fold.
    [016] Figure 5B illustrates in a representative way a flat rear view of an alternative intermediate configuration of the disposable absorbent pants of Figure 3, shown in a cross-tensioned condition, with a longitudinal fold.
    [017] Figure 5C illustrates in a representative way a flat front view of an alternative fully folded configuration of the disposable absorbent pants of Figure 3, with both sides of the waist folded under the central region of the waist, and with parts cut to show the basic characteristics.
    [018] Figure 5D illustrates in a representative way a flat rear view of an alternative fully folded configuration of the disposable absorbent pants of Figure 3, with both sides of the waist folded over the central regions of the waist.
    [019] Figure 6A illustrates in a representative way a flat front view of an alternative configuration of disposable absorbent pants, suitable for use in conjunction with certain configurations of the present invention, shown in a relaxed way and supported on a flat area.
    [020] Figure 6B illustrates in a representative way a flat frontal view of the disposable absorbent pants of Figure 6A, shown in a relaxed condition and supported on a flat area, with a lateral waist region folded over the central waist region.
    [021] Figure 6C represents, in a representative way, a flat front view of the disposable absorbent pants of Figure 6A, shown in a relaxed condition and supported on a flat area, with both lateral regions of the waist folded over the central region of the waist.
    [022] Figure 6D is a cross-sectional view of the pants in Figure 6C, as seen on line 6D-6D.
    [023] Figure 6E is similar to that shown in Figure 6D, but with the longitudinal fold.
    [024] Figure 7A illustrates in a representative way a perspective view of a configuration of a package of disposable absorbent suits, using certain configurations of the present invention.
    [025] Figure 7B illustrates in a representative way a perspective view of an alternative configuration of a pack of disposable absorbent suits, folded using certain configurations of the present invention.
    [026] Figure 8 illustrates in a representative way a perspective view of a configuration of the method of the present invention.
    [027] Figure 9 illustrates in a representative way a perspective view of a configuration of a part of an apparatus, suitable for use in conjunction with certain configurations of the method of the present invention.
    [028] Figure 10A illustrates in a representative way a perspective view of the various folding stages of a suit, in general terms, according to the example configuration of Figure 8, with a change in the order of the folding steps.
    [029] Figure 10B illustrates in a representative way a perspective view of the various folding stages of a suit, in general terms, according to the example configuration of Figure 8.
    [030] Figure 11 illustrates in a representative way a perspective view of the configuration of the method of the present invention.
    [031] Figure 12 illustrates in a representative way a perspective view of a configuration of a part of an apparatus, suitable for use in conjunction with certain configurations of the method of the present invention.
    [032] Figure 13 illustrates in a representative way a perspective view in approach of the upper part of the apparatus of Figure 12, showing additional features and details.
    [033] Figure 14 illustrates in a representative way a perspective view of the various folding stages of a suit, in general terms, according to the example configuration of Figures 11 and 13.
    [034] Figure 15 illustrates in a representative way a perspective view of a configuration of a part of an apparatus, suitable for use in conjunction with certain configurations of the invention such as those illustrated in Figure 8. Definitions
    [035] Within the context of this specification, each term or phrase below will include the meaning or meanings below. Additional terms are defined elsewhere in the specification.
    [036] "Annex" refers to joining, adhering, gluing, connecting two elements. Two elements will be considered as joined when they are directly attached to each other, or indirectly, as when each is directly attached to intermediate elements.
    [037] "Disposable" refers to articles designed to be discarded after limited use, rather than being washed or otherwise restored for new use.
    [038] "Discarded", and other variations of the term, means that an element can be an integral part of another, or that an element can be a separate structure, glued or applied together or close to another element.
    [039] "Elastic", "with elastic" or "elasticity" means that the property of a material or compound tends to recover its original size and shape after removing the force that causes the deformation.
    [040] "Elastomeric" refers to a material or compound that can be stretched to at least 50% of its relaxed length, and which will recover, when the applied force is released, at least 20% of its elongation. It is usually preferable that the elastomeric material or compound can be stretched by at least 100%, and even better if it can be stretched up to 200% of the relaxed length, and that it recovers, after releasing an applied force, at least 50% of stretching.
    [041] "Integral" is used to refer to several parts of a single element, rather than separate structures connected, glued or arranged close together.
    [042] "Longitudinal" and "transversal" are used with their normal meanings, as indicated by the longitudinal and transversal axes illustrated in the figures. The longitudinal axis is found on the product panel and usually parallel to a vertical plane, which forks, when dressed in a standing user, in the right and left halves of the body. The transverse axis is located on the flat part of the product, usually perpendicular to the longitudinal axis.
    [043] These terms can be defined with additional meanings elsewhere in this specification. Detailed description of example configurations
    [044] The present invention describes a method 20 of folding disposable absorbent garments in the shape of pants. The reference to the figures must be made in the description of several configurations of the invention. It should be noted that the configurations described in the figures are described here merely as representative examples of the method of the invention. The various configurations of the invention are suitable for use in disposable and foldable absorbent suits, such as incontinence underwear, pre-folded disposable diapers, disposable swimwear, training pants, disposable incontinence garments and the like. For purposes of illustration, various configurations of the present method invention should be described in conjunction with folding incontinence pants that are dressed in the conventional manner.
    [045] In specific configurations, each costume or pants 50 has an opening at the waist 52, two leg openings 54, a waist end 56, an end of the genital area 58 and the first and second side edges 55a, 55b. In certain configurations, each pants contains a pair of side seams 91, 91 that join the front and back of the pants. Each pants can contain a fold of the genital area 67. Each pants defines a longitudinal direction 51 that extends from the end of the waist 56 to the end of the genital area 58, and each pants defines a transverse direction 53 perpendicular to the longitudinal direction 51. Each pants 50 define a total length 57 that extends in the longitudinal direction 51 from the edge of the waist 56 to the end of the genital area 58. (If the front waist 72 and the rear waist 74 have different distances from the end of the genital area 58, then the total length 57 of the pants will be the greater of the two configurations). Each pants also defines a width 59 that extends transversely 53 from one side edge 55a to the other 55b. Length 57 and width 59 for the purposes of this document are measured when the pants are in a fully assembled state (with the side seams intact) and fully relaxed, as shown in Figure 3. Length 57 is measured on the longitudinal center line of the pants 50, and the width 59 is measured at the longitudinal midpoint of each side seam 55. Each trouser also defines a first lateral region of waist 60, a second lateral region of waist 62 and a central region of waist 64, positioned transversely between the first lateral region 60 and the second lateral region 62. The first lateral region of the waist 60 extends approximately 20% to 40% of the transverse width 59 of the pants 50, in the assembled, relaxed condition and arranged on a flat surface. The second lateral region of the waist 62 extends approximately 20% to 40% of the transverse width 59 of the pants 50, in the assembled, relaxed condition and arranged on a flat surface. The central region of the waist 64 extends approximately 20% to 60% of the width 59 of the pants 50, in the assembled, relaxed condition and arranged on a flat surface. In certain configurations, the first waist side region 60, the second waist side region 62 and the central waist region 64, each extends approximately one third of the width 59 of the pants 50, in the relaxed and flat condition, as illustrated generically in Figure 3. Each waist region 60, 62, 64 extends in the longitudinal direction 51, usually from the edge of the waist 56 to the top of the leg openings 54, 54, as indicated by arrows 49 in the Figures 3A and 6A.
    [046] In certain configurations, each pants contains a front panel 71, a back panel 73 and a genital area panel 75. Panels 71, 73, 75 can be integrated with each other, or they can form independent components connected to each other . In certain configurations, the front and rear panels 71, 73 are formed of elastomeric materials, such as laminates of elastomeric films, elastomeric laminates in wefts, laminates in wefts, grids or the like. In one example, the front and rear panels 71, 73 are formed by an elastomeric film sandwiched between two nonwoven, fabric-like substrates based on polyolefin.
    [047] Each pants 50 further defines a waistband region 70 that fixes the waistband 56. The waistband region 70 extends in the transverse direction 53 and at least partially outlines the waist opening 52. Each region of the waistband the waist band 70 is formed by a front part of the waist band 72 and a posterior part in the part of the waist band 74. The parts of the waist band 72, 74 extend between the side seams 55. The front part of the waist band waist 72 is adapted to be in contact with the front half of the wearer's waist, and the back 74 is adapted to be in contact with the rear half of the wearer's waist when dressed. The parts of the waist band 72, 74 can be integrated with the front and rear panels 71, 73, or they can be separate components attached to the front and back panels 71, 73. For example, the part of the front waist band 72 can form the front panel region 71 which is within 25 centimeters, or within 35 centimeters of the front waist end 76 and the portion of the rear waist band 74 may form the rear panel region 73 which is within 25 centimeters, or within 35 centimeters, from the edge of the rear waist 77. Optionally, the front waist band portion 72 may form a folded portion of the front panel 71 and / or the rear belt portion 74 may form a folded portion of the rear panel 73. In certain configurations, a dotted line extending transversely defines the front edge of the waist 76 and a dotted line extending transversely defines the rear edge of the waist 77. In such configurations es, the longitudinal length of the folded part defines the boundaries of the respective part of the waistband. Preferably, one or more elastic strands are arranged within one or both folded parts. Examples of such particular configurations of folded waist bands are described in U.S. Patent Application 2008/0134487 to Hartono, which is incorporated by reference and consistent with the one presented herein. Optionally, the front part of the waist 72 can form a separate elastomeric component or mounted on the front panel 71, and / or the part of the back waist band 74, can form a separate elastomeric component or mounted on the back panel 73, as illustrated in Figure 1. Each pants can also define a genital region 68 that holds the end of the genital area 58. The genital area 68 extends in the longitudinal direction 51, usually from the end of the genital area 58 and the upper part of the leg openings 54, 54, as indicated by arrows 48 in Figures 3A and 6A.
    [048] It is also desirable that each pants contain an absorbent compound 80, generally disposed over the central region of the waist 64 and the region of the genital area 68. In certain configurations, the absorbent compound 80 may contain a back sheet next to the suit, liquid impervious 82, a liquid impervious top sheet 84 and a fluid absorbing core 86 formed by a plump mass and / or superabsorbent polymer sandwiched between the back sheet 82 and the top sheet 84. The absorbent core 86 contains a front edge 87, a rear edge 88 spaced from the front edge in the longitudinal direction and two side edges 89 extending longitudinally from the front edge 87 to the rear edge 88. The absorbent core 86 can be rectangular, hourglass, oval, trapezoid or other suitable format. Due to the additional volume introduced by the absorbent core 86, regions of pants 50 containing absorbent core 86 are generally thicker than other regions of the same pants. Examples of disposable absorbent pants, for use with the method of the present invention, include those disclosed in US 5,745,922, published on May 5, 1998, to Rajala et al., USA 6,240,569, issued on June 5, 2001 , for Van Gompel et al., USA 6,702,798, issued on March 9, 2004, for Christoffel et al., and USA 7,604,624, issued on October 20, 2009, for Veith et al., with the content of all of them is incorporated here as a reference and is consistent with what is presented here. Note that disposable absorbent pants could be provided in a “closed” configuration (to be worn in the normal way), a “closed” configuration that can be opened or closed, or an “open” configuration (without pre-closing); all of them can be used in conjunction with the various configurations of the present invention.
    [049] In certain configurations, method 20 includes folding each pants at least once in the longitudinal direction 51. In certain configurations, as illustrated in Figures 4 and 5, pants 50 are folded over a dotted line extending transverse 44, in order to bring the region of the genital area 68 into an overlapping relationship (and optionally a contact relationship) with the central region of the waist 64. The end of the genital region 58 can be positioned to release with the end of the waist 56 , as shown in Figures 5A-D. Optionally, the genital area 58 can be positioned to not be released with the end of the waist 56, so that the end of the waist 56 and the genital area 58 have different distances from the dotted line 44. For example, as shown in Figures 4A- D, pants 50 can be folded in such a way that the distance 65 between the end of the genital area 58 and the dotted line 44 is greater than the distance 66 between the end of the waist 56 and the dotted line 44. The first dotted line longitudinal 44 can be, although not necessarily, longitudinally close to the front end 87 of the absorbent core 86, as is the case of the configuration in Figure 4. The pants can be folded on the dotted line 44, so that the region of the genital area 68 is brought in an overlapping relationship, with the front panel 71 or with the back panel 73. In certain configurations, as illustrated in Figures 4 and 5, pants 50 are folded so that the region of the genital area 68 en at least partial contact with the part of the posterior waist band 74. In this configuration, the surface of the side of the suit 93c of the region of the genital area 68 of the pants 50, comes in direct contact with the surface of the side of the suit 93w of the part of the posterior waistband 74 of the region of the waistband 70.
    [050] With respect to Figures 8, 9 and 11-13, method 20 also includes the formation of a passage 100. The passage forms a base 102, a first side wall 104 and a second side wall 106. The passage defines a passage width 105, which if used as shown here, refers to the distance from the base of the first side wall 104 to the base of the second side wall 106 (i.e., along the base 102). If the width of the passage varies over the length of the passage 100, the width of the passage as used here refers to the narrowest passage over the length of the passage 100. The passage also defines a maximum depth for the passage, defined as the distance maximum between the base 102 and an imaginary plane occupied by the side edges of the first and second side walls 104, 106. The side walls 104, 106 can be perpendicular to the base 102, or one or both side walls 104, 106 could be positioned in an oblique angle to the base 102.
    [051] With respect to the Figures. 8 and 11-13, the method also consists of placing the central region of the waist 64 of the costume 50 in the passage 100. In certain configurations, the region of the genital area 68 of the costume 50 is also positioned in the passage, as illustrated in Figures 8 and 12. After the central region of the waist 64 and, preferably, also the region of the genital area 68, were positioned in the passage 100, the method also includes folding the suit 50 at least once, preferably twice, in the opposite direction 53 Figures 8 and 1113 show suits 50 in various folding stages while in passage 100. Figures 10 and 14 illustrate various folding stages that can be performed using a passage, but with the passage and associated apparatus removed. , to more clearly describe the various folding stages. In certain configurations, as shown in Figures 8-14, the first side waist region 60 and the second side waist region 62, of each pants 50, are folded or moved in overlapping relationship, the center region of waist 64. For example , the method may include folding the clothing 50 over a first dotted line extending longitudinally 61 so as to position the first lateral region of the waist 60 over the central region of the waist 64. Preferably, the first dotted line 61 is adjacent to the first side wall 104. Likewise, the method may include folding the suit 50 over a second dotted line extending longitudinally 63 so as to position the second side region of the waist 62 over the central region of the waist 64. Preferably, the second dotted line 63 is adjacent to the first side wall 106. In particular configurations, the first side region of the waist 60 is folded over the central region of the waist 6 4 and the second lateral region of the waist 62 is folded over the central region of the waist 64 and the first lateral region of the waist 60. Thus, in certain configurations, the pants 50 are folded twice in the transversal direction 53.
    [052] As previously mentioned, the method preferably includes folding each pants at least once in the longitudinal direction 51, as in a dotted line extending transversely 44, to bring the region of the genital area 68 into a relationship overlapping the region center of the waist 64. In certain configurations, the folding of the laundry on the dotted line, which extends transversely 44, occurs before the folding of the laundry on the first and second dotted lines 61 and 63. Examples of this method are illustrated in Figures 10B and 14. Stating otherwise, in certain configurations, pants 50 are folded at least once in the longitudinal direction 51, in order to position the region of the genital area 58 very close to the end of the waist 56 before the pants 50 are folded in the transversal direction 53. For example, as illustrated in the configuration of Figures 4 and 5, the pants 50 are first folded over a dotted line extending transversely 44, and then da is folded over a first dotted line extending longitudinally 61 and finally is folded over a second dotted line, extending longitudinally 63. In the folded configuration shown in Figure 5, most of the genital area 68 is pressed at least partially between the first lateral region of the waist 60 and the central region of the waist 64. In certain configurations, as shown in Figure 5, both the front waist band 72 and the rear waist band 74 portions of the waist 70 are wrapped around the region of the genital area 68. In such configurations, it may be desirable to have the waist 70 region of the pants in a tensioned condition. Having the waistband 70 region in a tensioned or partially tensioned condition, it is possible to help highlight the “real underwear” properties of the pants to a consumer who sees them, as through a transparent window region 30 of package 40, as shown in Figures 7A and 7B.
    [053] In certain configurations, folding the laundry on the dotted line that extends transversely 44, occurs before folding the laundry on the first and second dotted lines 61 and 63. Examples of this method are illustrated in Figures 6A-E and 10A . The first side waist region 60 and the second side waist region 62 of each pants 50 are folded or moved in superimposed relation to the central region of waist 64. From there, the clothing is folded on the dotted line, extending across 44 , in order to bring the region of the genital area 68 in a superimposed relationship to the central region of waist 64.
    [054] With respect to the Figures. 1 and 3B, in certain configurations, the absorbent core 86 defines a maximum core width 85. "Maximum core width", as used here, means the largest transverse distance between the first and second lateral edges of the core 89, 89. In certain configurations, as shown in Figure 3B, the maximum width of the core 85 exceeds the width of the passage 105, so that the first dotted line 61 and the second dotted line 62 extend into the absorbent core 86. In certain configurations, the method of the present invention can provide consistent and robust folds of the lateral regions of the waist 60, 62, despite the presence of "ears" in the relatively thick and bulky absorbent core in the area of the dotted lines 61, 63.
    [055] Method 20 defines a machine direction 22 and a transversal direction in relation to machine 24, perpendicular to the machine direction. For the specialists in the field, “machine direction” is understood as the primary direction of displacement of the wefts of the product or work parts in a manufacturing process or in a segment of a manufacturing process.
    [056] With respect to the Figures. 8-10, in certain configurations, method 20 includes transporting each suit 50 in the direction of machine 22, so that the longitudinal direction 51 of each suit 50 is parallel to the direction of machine 22 during transport in the direction of machine. In such configurations, the passage 100 preferably extends over the direction of the machine 22, so that the side walls of the passage 104, 106 extend in the machine direction 22, and so that the width of the passage 105 extends in the transverse to machine 24. Figures 8-10 illustrate the folding stages of the suit in this configuration. In step (a), the costume in the shape of pants 50 is presented in an unfolded, flat condition, as in a relaxed, unfolded and flat condition. In step (b), suit 50 was folded on the dotted line extending transversely 44, in order to bring the region of the genital area 68 to an overlapping position and in contact with the central region of the waist 64. In step (c) , the central region of the waist 64 and the region of the genital area 68 of the suit 50 are positioned and, optionally, pressed against the passage 100. In steps (d) and (e), the suit 50 is folded over a first dotted line extending longitudinally 61, so as to position the first lateral region of the waist 60 over the central region of the waist 64. The first dotted line 61 is adjacent to the first lateral wall 104. In steps (f) and (g), suit 50 is folded over a second dotted line extending longitudinally 63 so as to position the second side region of the waist 62 over the central region of the waist 64. The second dotted line 63 is adjacent to the first side wall 106. After the suit 50 is folded in this way, twice , in transverse direction 53, in certain configurations, the garment leaves passage 100. In certain configurations, the fully folded garment 80 exits passage directly on a stacker (not shown). Note that step (b) can occur before steps (d) - (g) (for example, Figure 10B) or after epatas (d) - (g) (for example, Figure 10A).
    [057] In certain configurations, the base 102 of the passage 100 moves in the machine direction 22. An example of such a configuration is a conveyor 112 as used in the configuration of Figures 8 and 9. Preferably, the base 102 of the passage 100 is extends in a plane, as is the case of the configurations of Figures 8 and 9. Optionally, the base of the passage can define a curved plane, as in the case of the passage extending circumferentially around a drum that rotates in the machine direction.
    [058] In certain configurations, the first side wall 104 forms a first side belt, and the second side wall 106 forms a second side belt. In such a configuration, the first and second side straps can carry the suit towards the machine. In certain configurations where the side walls form side straps, the base 102 forms a belt at the base, and the first side belt, the second side belt and the base belt advance together in the machine direction 22. In other configurations, both the first as well as second side walls 104, 106 are stationary. In certain configurations, both the first and second side walls 104, 106 form vacuum holes through which the vacuum force is transmitted, and the vacuum force attracts the suit to the first and second side walls 104, 106.
    [059] In certain configurations, placing the suit 50 in the passage 100 is done by pressing the central region of the waist 64 (and optionally the region of the genital area 68) against the base 102 of the passage 100, using a pressure mechanism 110, so that the suit is pressed under pressure between the base 102 and the pressure mechanism 110. The pressure mechanism 110 can form, for example, a pulley, a conveyor belt, one or more sets of cables and pulleys, a flat base , a flow of compressed air or the like.
    [060] In certain configurations, the method further includes retaining suit 50 in passage 100, using one or more limiting members 111, 111. For example, as shown in Figure 9, there are a pair of limiting members 111, 111 in shape of elongated rods. Limiting member or members 111, 111 act to restrict suit 50 in the passage during at least part of the folding step or steps. In the configuration of Figure 9, the rods help to maintain the central region of the waist 64 and the region of the genital area 68 pressed securely against the base 102 in the “corner” regions where the base 102 meets the side walls 104, 106.
    [061] The transverse fold of the first and second side regions of the waist 60, 62, can be performed using various techniques. For example, folding the suit over the first and second dotted lines can be achieved by means of a mat twisted roller. In such a configuration, each side waist region is manipulated by one or two twisted conveyor belts, through which each belt or set of belts rotates approximately 180 degrees as they move towards the machine. In another example, folding the suit over the first and second dotted lines is achieved by using a pair of suction ducts. In such a configuration, each side of the waist is manipulated by being attracted by the suction ducts, which extend in the direction of the machine, and the ducts are twisted in order to carry out the folding step. In another example, folding the suit over the first and second dotted lines is achieved by means of a pair of stationary fold plates. In such a configuration, left and right plates extend in the machine direction and gradually form an inward angle, from the regions close to the passage walls towards a central line of the passage in the machine direction. As the plates form the angle inward, and the suit is transported in the machine direction between the plates, the angled edges move the side regions of the waist 60, 62 so that they are folded over the central region of the waist 64 In yet another example, as illustrated in Figure 15, folding the garment over the first and second dotted lines, is done by means of a pair of rotating blade modules, or belt or chain type. 125 In such a configuration, plates, blades or fingers 126 are mounted on a rotating shaft, a belt, a chain link 127 or the like. The movement of the finger blades 126 is configured to make contact with the side regions of the waist 60, 62, and to bend the side regions of the waist 60, 62 over the central region of the waist 64.
    [062] Regarding the Figures. 11-14, in certain configurations method 20 includes transporting suits 50 in the machine direction 22, so that the transverse direction 53 of each suit 50 will be in parallel with the machine direction 22, during transport in the machine direction . In such configurations, the passage 100 preferably extends over the transverse direction of the machine 24, so that the side walls of the passage 104, 106 extend in the transverse direction of the machine 24, and so that the width of the passage 105 extends. extend in machine direction 22. Figures 11-14 illustrate the folding stages of the suit of such a configuration. In step (a) the trouser-shaped suit 50 is in an unfolded and flat condition; the piece could be stretched under tension at this stage, or relatively relaxed. In step (b), suit 50 was folded on the dotted line extending transversely 44, in order to bring the region of the genital area 68 to an overlapping position and in contact with the central region of the waist 64. In step (c) , the central region of the waist 64 and the region of the genital area 68 of the suit 50 are positioned and, optionally, pressed against the passage 100. In steps (d) and (e), the suit 50 is folded over a first dotted line extending longitudinally 61, so as to position the first lateral region of the waist 60 over the central region of the waist 64. The first dotted line 61 is adjacent to the first lateral wall 104. In steps (f) and (g), suit 50 is folded over a second dotted line extending longitudinally 63 so as to position the second side region of the waist 62 over the central region of the waist 64. The second dotted line 63 is adjacent to the first side wall 106. After the suit 50 is folded in this way twice s, in the transverse direction 53, in certain configurations, the garment leaves passage 100. In certain configurations, the fully folded garment 80 exits passage directly on a stacker (not shown). Note that step (b) can occur before steps (d) - (g) or after steps (d) - (g).
    [063] In certain configurations where the width of the passage 105 extends in the machine direction 22, the passage 100 moves in the machine direction 22. In certain assemblies of such a configuration, the passage 100 orbits about an axis of rotation 120 during folding of suit 50, on the first and second dotted lines 61, 63, with the axis of rotation 120 extending in the transversal direction of the machine 24. An example of this configuration is a large folding drum 113, as used in configuration of Figures 11-13. In this example, a series of passages 100 is spaced around the bending drum 113.
    [064] In this configuration, an interconnected series 150 is delivered to the folding drum 112, as by means of a transfer drum 114. In the configuration of Figure 11, each suit 50 in the interconnected series 150 is folded over the respective dotted line 44 extending crosswise, before reaching the fold drum 112. In certain configurations, positioning the central region of the waist 64 and the region of the genital area 68 in passage 100 (step (c)) involves pressing the central region of the waist 64 and the region of the genital area 68 in the passage (as on the base 102 of the passage 100) using a pressure mechanism 110, shown as an elevated part in the transfer drum114. In this way, the central region 64 is temporarily pressed under pressure between the base of the passage 102 and the pressure mechanism 110. Other configurations could be used in the pressure mechanism 110, such as a flow of compressed air or another suitable structure, as discussed above .
    [065] In certain configurations, as illustrated in Figure 11, each individual suit 50 is separated from the interconnected series 150 while being positioned on the bending drum 113, as by means of a cutter 152. During the cutting step, the cutter can penetrate a recess 154 formed in the bending drum 113, and / or the cutter 152 can engage with a cutting anvil formed in the cutting drum 113. In certain configurations, a limiting drum 156 can safely hold the suit in passage 100 for the cutting step.
    [066] In the configuration of Figures 11-13, the transverse folding of the first and second lateral regions of the waist 60, 62, can be performed through various techniques. For example, folding the suit over the first and second fold lines 61, 63 can be done by using projected folding blades 160. For example, after the suits 50 have been separated from the interconnected series 150, a pair of folding blades can protrude through grooves 162 present in the respective side walls 104, 106. The movement of the blades is configured to make contact with the side regions of the waist 60, 62, and to bend the side regions of the waist 60, 62 over the central waist region 64. In an optional example, folding the suit over the first and second dotted lines is done by means of a pair of compressed air jets.
    [067] We would be grateful if the details of the examples above, provided for purposes of illustration, are not interpreted as factors that limit the scope of this disclosure. Although only a few examples of configurations for this disclosure have been described in detail above, industry experts will soon realize that many modifications are possible in the examples without deviating essentially from the novelties of this disclosure in terms of lessons and advantages. Therefore, all such modifications must be considered to be within the scope of this disclosure, which is defined in the claims that follow and in all equivalent claims. Furthermore, it is recognized that many configurations can be designed that do not achieve all the advantages of some configurations, particularly the preferred configurations, although the absence of a certain advantage is not necessarily interpreted as being a configuration outside the scope of the present invention. .
    权利要求:
    Claims (15)
    [0001]
    1. Method of folding disposable pants-type absorbent suits, the method comprising: providing a suit with an opening in the waist (52) and two openings in the legs (54), with the garment defining a longitudinal direction (51) and a transverse direction (53), the piece defining a first lateral region (60) adjacent to the first edge (55a), a second lateral region of the waist (62) adjacent to a second lateral edge (55b), a central region in the waist (64 ) positioned transversely between the first lateral region of the waist and the second lateral region of the waist, and a genital region (68) longitudinally below said central region of the waist, and the piece further including an absorbent core (26); the fold of the suit over a dotted line extending transversely (44), in order to bring the region of the genital area in overlapping relationship with the central region of the waist; characterized by the fact that it forms a passage (100), comprising a base (102), a first side wall (104), and a second side wall (106), defining the width of the passage (105) extending from the first side wall to the second side wall; positioning the central waist area in the passage; and folding the suit over a first dotted line extending longitudinally (61), in order to position the first lateral region of the waist over the central region of the waist, with the first dotted line adjacent to the first side wall, and folding the piece over a second dotted line extending longitudinally (63) in order to position the second lateral region of the waist over the central region of the waist, with the second dotted line adjacent to the second side wall, where both folding operations occur, while the region center of the waist is in the passage.
    [0002]
    2. The method according to claim 1, characterized by the fact that it defines a direction of the machine (22) and a transversal direction of the machine (24), in which the suit is transported in the direction of the machine so that the longitudinal direction of the workpiece is parallel with the machine direction during said transport, providing a passage that extends over the machine direction, with the width of the passage extending in a direction parallel to the transversal machine direction.
    [0003]
    The method according to claim 1 or 2, characterized by the fact that the base (102) of the passage moves in the direction of the machine and / or in which the base of the passage extends in a flat plane.
    [0004]
    4.The method according to claim 3, characterized by the fact that the fold of the suit over the first and second dotted lines is obtained by means of twisted conveyor belts, or in which the fold of the suit over the first and second dotted lines is achieved by means of a pair of prolonged suction ducts, or in which fold of the suit over the first and second dotted lines is achieved by means of a pair of stationary fold plates, or in which fold of the suit over the first and second dotted lines are achieved through a pair of rotating blade modules.
    [0005]
    The method according to claim 3, characterized in that the first side wall (104) comprises a first side mat, and where the second side wall (106) comprises a second mat, and where the base (102) comprises a base mat, where the first side mat, the second side mat and the base mat advance together towards the machine.
    [0006]
    6. The method according to claim 3, characterized by the fact that both the first and second side walls are stationary, and where the first and second side walls comprise suction holes through which the vacuum force is transmitted and where the vacuum force attracts the suit to the first and second side walls.
    [0007]
    7.The method according to claim 1, characterized by the fact that it defines a direction of the machine (22) and a transversal direction of the machine (24), in which the suit is transported in the direction of the machine so that the transversal direction ( 53) the part is parallel with the machine's direction during the referred transport, providing a passage that extends over the transversal direction of the machine, with the width of the passage extending in a direction parallel to the machine's direction, with the base of the passage moving towards the machine.
    [0008]
    8. The method according to claim 7, characterized by the fact that the passage orbits around an axis of rotation (120) during the folding of the suit, over the first line and the second dotted line, with the axis of rotation being extending in the machine's transverse direction.
    [0009]
    9. The method according to claim 7 or 8, characterized by the fact that folding the suit over the first and second dotted lines is achieved by means of compressed air jets, or in which folding the suit over the first and second dotted lines it is achieved by means of a pair of projected blades.
    [0010]
    10. The method according to any of claims 7 to 9, characterized by the fact that the suits are separated from an interconnected series of pieces (150), immediately prior to the positioning of the central waist region in the passage, or in that the suits are separated from an interconnected series of pieces (150), immediately after positioning the center of the waist region in the passage.
    [0011]
    11. The method according to any of the preceding claims, characterized by the fact that the first side wall of the passage and the second side wall of the passage are both positioned at an oblique angle to the base.
    [0012]
    12. The method according to any of the preceding claims, characterized by the fact that the suit defining an end of the genital area (58) and an end of the waist (56), where, after folding the piece over the dotted line that extends transversely in order to bring the area of the genital region to an overlapping relationship with the central region of the waist, the end of the waist and the end of the genital area have different distances from the dotted line that extends transversely.
    [0013]
    13. The method according to any of the preceding claims, characterized by the fact that the positioning of the central region of the waist in the passage comprises pressure of the central region of the waist on the base of the passage, using a pressure mechanism, so that the suit it will be pressed under pressure between the base and the pressure mechanism.
    [0014]
    14. The method according to any of the preceding claims, characterized by the fact that the absorbent core defines a first edge of the core (89), extending longitudinally, and a second edge of the core (89) extending longitudinally, with the core defining a maximum core width (85), wherein the maximum core width exceeds the width of the passage, so that the first dotted line and the second dotted line extend into the absorbent core.
    [0015]
    15. The method according to any of the preceding claims, characterized by the fact that the folding of the suit over the dotted line, which extends transversely, occurs before the folding of the garment over the first and second dotted lines, or in which the folding of the suit over the dotted line, which extends transversely, occurs after folding the garment over the first and second dotted lines.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP2782539A1|2014-10-01|
    AU2012342132A1|2014-05-15|
    MX2014005797A|2014-05-30|
    CN103945810B|2016-03-23|
    US20130130879A1|2013-05-23|
    BR112014011267A2|2017-04-25|
    RU2014123796A|2015-12-27|
    EP2782539A4|2015-07-15|
    CN103945810A|2014-07-23|
    EP2782539B1|2018-03-07|
    AU2012342132B2|2016-11-17|
    WO2013076595A1|2013-05-30|
    KR101987516B1|2019-06-10|
    US9918881B2|2018-03-20|
    MX344652B|2017-01-03|
    KR20140092839A|2014-07-24|
    RU2604593C2|2016-12-10|
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    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-10-15| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-09-29| B09A| Decision: intention to grant|
    2020-12-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/10/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/302,429|US9918881B2|2011-11-22|2011-11-22|Method of folding pant-like disposable absorbent garments in a trough|
    US13/302,429|2011-11-22|
    PCT/IB2012/055394|WO2013076595A1|2011-11-22|2012-10-05|Method of folding pant-like disposable absorbent garments in a trough|
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