• 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:

    公开号:SE1050368A1
    申请号:SE1050368
    申请日:2008-10-22
    公开日:2010-05-03
    发明作者:Robert L Uelmen；Aaron J Adent
    申请人:Iggesund Tools Ab；
    IPC主号:
    专利说明:

    Result in the formation of a cut or flat surface on the wood being processed. In veneer lathes, however, the knife remains relatively stationary while the knife engages the log which is rotated about its axis.
    A typical rotary type ice sheet slicer is described in detail in US 5,129,437 to Nettles et al. In the ice cut of this type shown in Fig. 2, logs are fed against a rotating disc which carries a number of radially placed knives which are clamped between a main portion of the disc and the respective segment-shaped or wedge-shaped knife holders.
    Common to all the previously mentioned machines is that the recurring contact between the cutting edge of the knife and the wood causes the cutting edge to wear and become blunt over time. When the knife becomes too blunt, it stops cutting the wood cleanly and efficiently. For example, fl ice choppers, OSB choppers and veneer lathes, a blunt knife results in fl ice, OSB fl ice or veneers with poorer quality and / or irregular size. In plan reducers, edgings, chisels or other similar machines where raw timber or finished timber is produced, the sharpness of the knife affects the quality and accuracy of the surface treatment of the wood being processed.
    Traditionally, the procedure for keeping the knives sharp in the machines has been to remove the knife from the knife clamping device in the machine. This type of knife, called a sharpened knife, is sharpened by sharpening the knife blade and then repositioning the knife in the clamping device. However, this approach suffers from a number of known limitations. During each sharpening, portions of the knife must be sharpened to create a new, sharp cutting edge. This grinding results in a change in the size of the blade which, if left unadjusted, would result in a changed placement of the cutting edge after each grinding. More specifically, the position of the cutting edge can be changed in relation to the details that position the knife in the clamping device.
    Sharpened knives are designed to be large knives that are xered in place by a combination of clamping components. Sharpened knives are also characterized by their generally large size or width. Fig. 1 is a cut-away view of a blade holder device for a sharpened knife. The ground knife 2 is held down by an upper plate 12 which is attached to a body plate 11 of the knife holder device. A sharp cutting edge is retained on the sharpened knife 2 through 2010-04-30 10.37 VÅIGGESUND TOOLS AB | GGESUND TOOLS AB PATENT KNlVSTOPP SE 21046781 20100422_21046781_App | i <2ati0nteXt_UL.d0c 10 av 20 20 25 30 3 when it becomes blunt. The overall width of the knife can be maintained by either adding molten material or by mechanical means such as an adjusting screw or bolt on the back of the knife.
    The position of the cutting edge can be displaced from its desired and intended location in relation to the wood being processed or important associated components in the machine such as abutments and guide plates. Unless the position of the knife is regularly regulated in the clamping device, which is difficult to do correctly and is also time consuming, the work obtained with the machine deteriorates, sometimes to unacceptable levels. With, for example, reducer edging, a precise positioning of the surface machining knives in relation to the wood being machined is a prerequisite for a correctly cut surface. Relatively small deviations from the position can have a measurable effect on the quality of the surface obtained.
    Another limitation with this approach is that grinding may not be accurate enough. Equipment used in woodworking devices is often such that the correct shape (shape and angle) of the cutting edge cannot be maintained. During on-site grinding, the knives are also sometimes damaged by overheating or other malfunctions during the grinding process.
    This can reduce the quality of the cutting edge, cause the knife to wear faster and impair the workmanship. Similarly, deviations in the shape of the cutting edge can also result in a deterioration of the design.
    To eliminate such problems, it has become common to use disposable blades, mostly of a reversible, double-edged design. Such a knife is shown, for example, in US 4,047,670 granted on 13 September 1977 to Aktiebolaget Iggesunds Bruk. The knife shown has substantially a flat, elongate body with a cutting edge running along one side of the elongate body and a second cutting edge running along the other. The knife is mounted in a knife clamping device that has a size and shape that secures the blade during operation and allows easy and quick knife changes.
    When the first cutting edge becomes blunt during use, the knife is turned and the second cutting edge is presented and used. When the cutting edge also 2010-04-30 10. 37 VIVGGESUND TOOLS AB IGGESUND TOOLS AB PATEN1WKNlVSTOPP SE 21046781 20100422_21046781_App | icat | 0ntext_ULdoc 10 15 20 25 30 4 has been worn, the knife is discarded and replaced with a new one. additional fresh cutting edges.
    Discardable knives are usually double-edged knives that have a significantly smaller overall size (width) than sharpened knives. Because disposable knives are smaller in size and have two edges, they depend on a cooperating knife and clamping device to dem xer them in place. An example of a holder device for a disposable knife is shown in Fig. 2. The disposable knife blade 20 is held between an upper knife holder plate 24 and a lower knife holder plate 21. The upper knife holder plate 24 and the lower knife holder plate 21 are then attached to the holding device body plate 11 for the disposable the knife through a screw, bolt or other fastener.
    Disposable knife shapes eliminate the problems associated with sharpening the knife because the knives are not sharpened. The dimensions and shape of the knife, which are controlled by the knife manufacturer, remain unchanged between the surfaces. There is also a certain increase in efficiency due to the fact that the smaller, lightweight, disposable blades, usually of higher quality material and high quality manufacture, allow increased operating time between replacements. Due to the simplicity of replacement and turning of the knives, the machine stoppage time for knife maintenance is also further reduced.
    Another problem that affects the knives used in many types of woodworking machines is the difficulty of securing the knives in the clamping devices under the action of the cutting forces. The blades must also be secured against movement in the radial direction. The problem is most common in disposable blade designs where the requirement for cost efficiency and competitiveness necessitates that the blades be compact and light.
    In many ice-cutting systems, both holding devices for sharpened knives and holding devices for disposable knives are held in place by a clamp located on top of the knife. When the piece of material being cut comes into contact with the blade, the blade is prevented from being separated from the body plate 11 of the knife holder device by a clamp depicted in fi g 1 and 2.
    However, compact blades are often difficult to attach to the clamping device so that they can withstand the different types of loads that occur in the different types of applications. Wood chipping applications, for example, include 2010-04-30 10.37 VÅIGGESUND TOOLS AB | GGESUND TOOLS AB PATENT KNlVSTOPP SE 21046781 20100422_21046781_App | icatl0nteXt_UL.d0c 10 15 20 25 30 5 subdivided into significant cuts or OSB choppers these chopping forces are relatively small. In the case of reducer edgings and plane reducers, the front of the surface machining knives can often be subjected to considerable loads directed towards the upper side of the cutting edge.
    Devices for limiting the radial movement of disposable knife blades are generally known as knife stops. Knife stops for disposable knives, hereinafter referred to as traditional knife stops, have generally been designed in the tradition of grinding knife holding devices by keeping the height of the traditional knife stop substantially below the knife cutting plane. The upper surface of a traditional knife stop is substantially flush with the plane of the rotating member. Examples of traditional knife stops are shown in fi g 3 and fi g 4.
    The traditional knife stops limit the radial movement of the knife blades to prevent the blades from separating from each other in a given knife.
    The traditional knife stops 30 and 31 prevent radial movement of the blades 36. However, the inner traditional knife stop 30 must be positioned on the inside of a wall of an inner retaining ring 32. Thus, a gap is formed between the wall of the inner retaining ring 32 and the end thereof. knife blade 36 which is closest to the wall of the inner holder ring 32. The traditional knife stop can be attached directly to the holder device for the knife blade. However, in order to attach the traditional knife stop directly, the holder device of the knife blade must be removed from the holder rings. Sometimes a special recess 37 must be created in the holder rings to accommodate the traditional knife stop. Using traditional knife stops can thus increase the time required to replace a blade and to adjust the knife stop.
    The traditional knife stops 30 and 31 also create an extra surface and / or a gap, as shown near the inner holding ring 32, which rotates with the rest of the knife device. However, the traditional knife stops 30 and 31 are not designed to help move the chopped material away from the cutting edge of the blade. When material is cut off by the knife blade 36, debris accumulates in the gap near the retaining ring and forms an inner debris build-up area 34. Similarly, in the area where the knife blade 36 is closest to the wall of the outer retaining ring 33, an outer debris build-up area 35 is formed near the 2010-04-30 10.37 VIUGGESUND TOOLS AB | GGESUND TOOLS AB PATENT KN | VSTOPP SE 21046781 20100422_21046781_App | icati0nteXt_ULdoc 10 15 20 25 30 6 special recess 37 which is created in the outer retaining ring 33 in order to accommodate the outer structure 31. in the debris building areas 34 and 35 can lower the efficiency of the entire fl ice cutting system by reducing the efficiency of the blade cutting edge. The debris accumulates between the knife and the knife stop. Such accumulated debris is difficult to remove. When replacing a knife blade, a significant portion of the machine's shutdown time is spent replacing debris wrapped between the knife and the knife stop. As these knives are used in high-producing machines, the amount of shut-off time should be minimized.
    As shown in Fig. 4, the traditional knife stop 30 can be attached to the side of the knife blade holder device. The traditional knife stop 30 thus prevents the blades 36 from separating from each other so that no gaps are created along the cutting edge, while the knife clamp 42 prevents the blades from separating from the body of the rotating member. The knife clamp is attached to the rest of the knife holder device by bolts, screws or other fastening means. The traditional knife stop 30 can be attached to either knife clamp. 42 or the body of the knife holder device.
    The blades are inclined so that the cutting edge of the blades is above the surface of the rotating member. The top of the traditional knife stop 30 is below the surface of the cutting plane 4 of the rotating member. The traditional knife stop 30 does not have a cutting edge and therefore the top of the traditional knife stop is usually not higher than the upper surface of the cutting plane of the rotating member. 48.
    As shown in the top view of the knife clamp in Fig. 5, the knife clamp 42 is attached to the body on top of the knife blade 36 by a number of fasteners 52. The traditional knife stop 30 prevents the knife blade from moving laterally. However, the traditional knife stop 30 also creates a gap 53 between the holding ring 57 and the knife clip 42. When material is chopped with the knife blade, debris builds up in this gap due to the fact that the front edge 47 of the traditional knife stop is not designed to facilitate fl the fate of chopped material away from the knife blade.
    This debris must be removed when the blades are changed or turned. A considerable amount of time during blade change or turning operations is now spent on removing 2010-04-30 10.37 VMGGESUND TOOLS AB | GGESUND TOOLS AB PATENT KNl / STOPP SE 21046781 20100422_21046781_Applicationtext_UL.doc 10 15 20 25 30 7prä. If this time can be minimized or eliminated, the efficiency and operating time of highly productive chippers and cutters can be significantly increased.
    Yet another particular problem affecting knife designs is the asymmetrical nature of the loads distributed along the length of the knife. Wood is not a homogeneous material. Sometimes the wood that is processed exerts a greater force against a local area of the cutting edge than against the rest of the blade. The most common reason for this is that the cutting edge hits a twig or some other irregularity in the wood. In some devices, one or both ends of the knife may be used to make a side cut. This can increase the asymmetrical nature of the loads to which the knife is subjected. The quality of the end product from ice-cutting and cutting machines is thus dependent on the correct position of the cutting edge of the knife in relation to the machine which is achieved during the initial installation. The possibility of maintaining the position of the knives when they are subjected to load also affects the quality of the end product. The greater the precision of the knife's position, the better the quality of the woodworking results in general.
    In most knife devices, knives are inserted into a clamping device by hand.
    In such circumstances, precise positioning can be difficult simply because the required precision may be greater than what is possible in a manual operation. In many cases, the knives are changed in situations that are physically uncomfortable for the person changing the knife. Depending on the circumstances, the person may need to extend over the head or around obstructing components to complete the replacement. This makes precise positioning even more difficult.
    When a cutting system uses a disposable knife device, it is common to place several knives in each knife. The knife clamp 42, shown in a top view of a knife blade holding device illustrated in Fig. 6, can be used to hold your knife blades 36 in place in a given knife hole. The blades extend the length of the exposed knife edge cutting area 60.
    When chopping material from a log, the center of the exposed knife wall is used more than the outer portions of the knife wall. As a result, there is one area with high utilization 61 of the blade and two areas with low utilization 66 and 67 of the blade. 2010-04-30 10.37 VÅIGGESUND TOOLS AB lGGESUND TOOLS AB PATENT KNIVSTOPP SE 21046781 20100422_21046781_App | iCati0ntext_UL.doc 10 15 20 25 30 8 Using a number of knives 36A-C in each knife, change the system. knife positions between the number of knives 36 distributed along the exposed knife edge cutting area 60. In disc type slicing systems, it is most likely that the middle portion of the knife blade has a higher level of utilization than the outer edges of the knife blade.
    The more utilized area 61 in the middle of the knife blade will thus probably have a higher level of wear than on the outer parts of the blades in the less utilized areas. The inner and outer portions of the knife 66 and 67 are not used as hard as the center of the blade and therefore do not wear down as quickly. The blade 36B is located entirely within the area of heavy utilization 61 while the blades 36A and 36C may be located partly in the area of high utilization 61 and partly in the areas of low utilization 66 and 67. The wear on the blade 36B will thus be greater than on the portions of the blades 36A and 36C located in the low utilization areas. The uneven wear along these blades can be compensated for by recurring change of position of the blades.
    When there is an area of concentrated wear, changing the knife positions allows more even use of the entire knife wall. The blade 36B, which is in the center of the widely used area of the knife, will wear relatively evenly. However, the blades 36A and 36C are located partly in the area with high knife utilization and partly in the areas with low knife utilization. Consequently, the portions of the blades 36A and 36C which are in the areas of low utilization of the knife will not wear down as quickly as the portions of the blades in the area of high utilization.
    By changing the positions of the blades 36A and 36C, the portions of the blade in the area of low utilization of the knife will be used in an area of high utilization and the wear on the blades can therefore be smoothed out. The practice of changing the knife positions in one go can maximize the economy of a disposable knife blade. However, changing the blade positions has proven to be a difficult procedure to perform in factory operation. Changing the blades in order to ensure even blade wear is a time-consuming operation that unnecessarily increases the shutting down time of the chopping or scanning machine. 2010-04-30 10.37 VÅIGGESUND TOOLS AB lGGESUND TOOLS AB PATENT KNlVSTOPP SE 21046781 20100422_21046781_App | iCat | 0ntext_ULdoc 10 15 20 25 30 9 As an alternative to traditional knife blade stops, a knife block arrangement can be used. Knife block devices can also be used in combination with knife stop devices. Fig. 7 is a top view depicting the outer end portion of a knife blade holding device with a knife block device 70 built into the holding ring 73. The knife block device 70 abuts directly against the end of the knife blades 36 and serves to counteract the centrifugal forces generated by the rotating member to hold the knife in place in the same way as the traditional knife stop does. However, the knife block device requires that an even larger recess is created in the holding ring as well as additional fastening means for holding the knife block in place.
    The strength requirements may differ between applications or depending on the varieties being processed, climate factors or other external variables. This places further restrictions on the size and shape of the knife and the surrounding clamping components as it is required that they are designed to be able to withstand the loads that arise within the relevant geometric restrictions.
    Brief description of the invention What is therefore desired is a knife, a knife stop and / or a cooperating clamping device which can utilize the knife blades more efficiently and which requires less mutual change of the position of the blades. Also, the knife and the clamping device will each preferably be designed to require minor modification of the woodworking machine holding the clamping device. What is also preferred is a knife that reduces the amount of debris buildup along the blade system blade.
    According to one aspect of the invention, there is therefore a sharp-edged knife stop which has a knife stop cutting edge. An angle of inclination of the sharp-edged knife stop may suit an angle of inclination of a knife blade in order to form a cutting edge for the knife holder device. A profile of the sharp-edged knife stop fits a profile of the blade with the intention of forming a cutting edge for a knife holder device.
    A sharp-edged knife stop can be placed in the exposed cutting area of a knife holder device in a material processing machine in order to limit the radial movement of the blades in the knife holder device. Det vasseggade 2010-04-30 10.37 VÅIGGESUND TOOLS AB lGGESUND TOOLS AB PATEN '|' KNlVSTOPP SE 21046781 20100422_21046781_Applicati0ntext_UL.d0c 10 15 20 25 30 10 knivstoppet can also withstand a knife build-up in the area between to eliminate unwanted surfaces that cause this buildup. Furthermore, the sharp-edged knife stop can reduce the need to change places with the knives in the corner to make better use of the edges.
    Brief Description of the Drawings Fig. 1 is a cut-away view of a holding device for a sharpened knife blade.
    Fig. 2 is a cut-out view of a holding device for a disposable knife blade.
    Fig. 3 is a top view of a knife blade holder device with traditional knife stops.
    Fig. 4 is a view of a holding device for a knife blade with a traditional knife stop.
    Fig. 5 is an enlarged plan view of the inner end portion of a knife blade holder device with a knife stop device.
    Fig. 6 is a top view of a holder device for a knife blade with traditional knife stops in a holder ring.
    Fig. 7 is a plan view of the outer end portion of a holding device for a knife body with a knife block device.
    Fig. 8 is a view of a holding device for a knife blade with a sharp-edged knife stop in a holding ring.
    Fig. 9 is an enlarged top view of the inner end portion of a knife blade holding device with a sharp-edged knife stop.
    Fig. 10 is a top view of a holding device for a knife blade with sharp-edged knife stops.
    Detailed description of the drawings The present invention eliminates the need to change the retaining rings and improves the efficiency of the blade utilization. As shown in Fig. 8, sharp-edged knife stops 80 and 81 may be located at both ends of a knife for the purpose of securing blades 85 located therebetween. Radial movement of the blades is thus prevented so that the blades do not separate from each other. The sharp-edged knife stops are located inside the inner and outer holder rings 83 and 87. The holder rings thus do not need to be changed to receive the 2010-04-30 10.37 V: lGGESUND TOOLS AB | GGESUND TOOLS AB PATEN'T KNIVSTOPP SE 21 046781 201 00422_21 046781__App | icati0rlteXt_U L.d0c 10 15 20 25 30 11 sharp-edged knife stops 80 and 81. The upper surface of the holding ring is substantially parallel to the plane of the rotating elements shown in fi g 8.
    The present invention uses sharp-edged knife stops to reduce the need to change blades. The sharp-edged knife tips have an edge height which is the same height as the blades 85. The sharp-edged knife tips 80 and 81 thus form part of the knife-cutting or cutting edge. The sharp-edged knife stops also prevent the blades 85 from separating from each other in a manner similar to a traditional knife stop.
    The extension covers a sharp-edged knife stop that differs from previous designs in that it has a sharp cutting edge that corresponds to the cutting edge of the knife. The sharp-edged knife tips are an integral part of the cutting edge. The upper surface of the sharp-edged knife stop also corresponds, as shown in fi g 8, to the angle of inclination of the knife. The sharp-edged knife stops have the same angle of inclination (a) as the blades above the cutting plane. The sharp-edged knife stops thus have the same difference in height above the holder ring as the knife blades.
    The sharp cutting edge property of the stop provides the advantages of resisting material build-up in the area between the knife wall and the knife stop, thereby minimizing or eliminating the need for factory operators to mutually exchange the knives in order to make better use of the edges and allow the knife stop to be placed in the exposed cutting area. .
    As shown in Figure 9, the sharp-edged knife stop 81 abuts directly against the knife clamp 92 in order to secure the knife blade 85 in order to ensure that the blades do not separate when your knife blades are used. The sharp-edged knife stop 81 can be attached to the device in a manner substantially similar to the knife clamp 92. Thus, the retaining ring 87 does not need to be changed. The knife stop is depicted with two fastening means, but the opening is not limited to this.
    The knife stop can be fastened with only a single fastening means or with a large number of fastening means.
    Traditional knife stops differ in profile from the knife and do not have a cutting edge. This causes wood debris to accumulate in an area between the knife stop and the knife. The debris build-up areas are shown in fi g 3. When adjusting the knives, this built-up debris needs to be removed because the debris 2010-04-30 10.37 V: | GGESUND TOOLS AB IGGESUND TOOLS AB PATENT KNlVSTOPP SE 21046781 20100422_App_0878 20 25 30 12 reduces the efficiency of the knife. The debris removal process is a time-consuming process that adds to the time required to replace or replace the blades and increases the shut-off time of the chopping or cutting device.
    By adjusting the blade's profile and having a sharp edge on the knife stop, wood debris will no longer accumulate between the knife and the knife stop as there is no longer any unwanted surface that accumulates debris. The sharp-edged knife stops facilitate the fate of debris like the rest of the knife device. While the traditional knife stop has an irregular surface that creates debris build-up, the sharp-edged knife stop can be shaped so that its profile fits the rest of the knife holder device. The use of a sharp-edged knife stop therefore limits the debris accumulation and reduces the machine's shut-off time as the considerable amount of time spent on debris removal during blade handling is minimized or eliminated.
    The exposed cutting area of an ice chopper is not always fully utilized. Wood material with different shapes and sizes is fed to the machine in different amounts, which results in different exposed knife areas being used unevenly. The areas on the innermost edges and the outermost edges of the knife edge are usually smaller than the area in the middle of the knife edge. In the present invention, the sharp-edged knife stops may be located in the areas of the cutting plane which are used little.
    As shown in Fig. 10, the sharp-edged knife stops 80 and 81 are located at the distal ends of the cutting plane. The knife blades 85 are thus largely located in the highly utilized area 61 of the cutting edge. The blades are therefore used more evenly because only a small portion of the blades are located outside the highly utilized area 61. The blades therefore do not need to be exchanged with each other often to ensure even use. In fact, it may be possible to completely eliminate the mutual replacement of the blades 85.
    As mentioned above, a better utilization of the knife walls can be achieved by changing the position of the knives after they have been worn down. In practice, it is difficult to optimally exchange the blade blades with the intention of maximizing the life of the blade. The principle of a sharp knife stop design allows the knife stop to do the temporary cutting work in the less frequently used 2010-04-30 10.37 VÅIGGESUND TOOLS AB lGGESUND TOOLS AB PATENT KNlVSTOPP SE 21046781 20100422_21046781_C 10 | thus eliminating the slight wear on blade edges that would normally be located in these areas.
    The high and low utilized areas of the blade are illustrated by traditional knife stops and sharp-edged knife stops in Figs. 6 and 10, respectively. The sharp-edged knife stops 80 and 81, shown in Fig. 10, fill a substantial portion of the low-utilized areas 66 and 67 of the knife. The cutting edge of the sharp-edged knife tips is used less often and therefore the cutting edges of the sharp-edged knife tips do not need to be sharpened or replaced as often as the knife blades.
    While the foregoing embodiments of the present invention have been described in detail with a view to making a complete description of the invention, it will be apparent to those skilled in the art that various modifications may be made to the knife, clamping device and sharp-edged knife stops without departing from the scope of the invention. in the claim. Some of these variations are described above and others will be apparent to those skilled in the art. For example, a non-reversible blade with a single edge can be used for the knife, the knife having only a cutting edge on one side of the knife but no edge on the opposite side. Furthermore, the sharp-edged knife stop can be attached to an upper plate. In addition, the sharp-edged knife stop can be designed as an integral part of the knife clamp. In yet another variant, the sharp-edged knife stop can be used together with a knife block device which is attached to the holding ring and the sharp-edged knife stop abuts directly against the knife block device. 2010-04-30 10.37 vmiccesuNo Toots ABuoe-EsuND TooLs AB PATENT KNivsToPP sE 21o4e7s1 2o1oo422_21046181_App | i <; a fl on1ex1_uL.uoc
    权利要求:
    Claims (17)
    [1]
    A knife holder device including: a knife blade having a cutting edge; a knife clamp for attaching the knife blade; and a knife stop, the knife stop including a cutting edge and the knife stop restricting movement of the knife blade relative to the knife clamp.
    [2]
    The knife holder device according to claim 1, wherein the cutting edge of the knife stop is in line with the cutting edge of the knife blade.
    [3]
    The knife holder device according to claim 1, wherein the knife stop is located at one end of the knife blade and the knife clamp.
    [4]
    The knife holder device of claim 1, further comprising a plurality of knife blades, the knife stop preventing the knife blades from separating from each other.
    [5]
    The knife holder device according to claim 1, further comprising a rotating frame member, wherein the knife stop is attached to the rotating frame member by at least one fastening means.
    [6]
    Knife holder device according to claim 5, wherein the at least one fastening means for the knife stop is connected to the rotating frame element in a recess formed in the knife stop.
    [7]
    The knife holder device of claim 1, further comprising a second knife stop including a cutting edge, the second knife stop further restricting the movement of the knife blade relative to the knife clamp.
    [8]
    The knife holder device according to claim 1, wherein the knife blade is a disposable knife blade.
    [9]
    The knife holder device of claim 1, further comprising a holder ring; and 2010 ~ 04-30 10.37 VÅIGGESUND TOOLS ABVGGESUND TOOLS AB PATENT KN | VSTOPP SE 21046781 20100422_21046781_App | icati0nteXt_UL.d0C 10 15 20 25 30 15 a knife block device, wherein the knife block is attached to the retainer directly on the holding ring.
    [10]
    The knife holder device of claim 7, further comprising first and second holder rings; and first and second knife block devices, the first knife block device being attached to the first holder ring and abutting directly against the knife stop and the second knife block device being attached to the second holder ring and abutting directly against the second knife stop.
    [11]
    A knife stop for use in a circular woodworking machine having a rotating member for rotating at least one knife blade, the knife stop restricting the movement of the at least one knife blade in a radial direction relative to the rotating member, the knife stop comprising: a sharp edge which forms part of a cutting edge together with a sharp edge of the at least one knife blade.
    [12]
    A knife stop according to claim 11, wherein the sharp edge of the knife stop has the same height above a plane of the rotating member as the sharp edge of the at least one knife blade.
    [13]
    A knife stop according to claim 11, further comprising a guide portion for guiding debris towards a radially placed opening in the rotating member.
    [14]
    A woodworking device, comprising: a rotating frame member; a knife blade radially positioned on the rotating member; a knife clamp for attaching the knife blade to the rotating body member; and a knife stop positioned at one end of the knife blade to limit radial movement of the knife blade relative to the rotating body member, the knife stop including a cutting edge.
    [15]
    The woodworking device of claim 14, further comprising a second knife stop including a cutting edge, the second knife stop further limiting radial movement of the knife blade relative to the rotating body member. 2010-04-30 10.37 VÅIGGESUND TOOLS AB lGGESUND TOOLS AB PATENT KNlVSTOPP SE 21046781 20100422_21046781_App | icati0ntext_ULdoc 16
    [16]
    The woodworking device of claim 14, further comprising at least one retaining ring surrounding the rotating member, the knife stop being located at the end of the blade closest to the at least one retaining ring.
    [17]
    A woodworking device according to claim 16, further comprising a knife block device, wherein the knife block is attached to the holding ring and abuts directly against the knife stop. 2010-04-30 10.37 V: | GGESUND TOOLS ABUGGESUND TOOLS AB PATEN "I ' KNIVSTOPP SE Z1046781 20100422_21046781_Applicati0nteXt_UL.d0c
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    FI111821B|2003-09-30|Machine for forming logs comprising spiral plates and a harvester for spiral plates
    EP1513659B1|2009-06-03|Chipper knife
    FI128004B|2019-07-31|Method of adjusting knive position in a disc chipper, and arrangement to apply the method
    同族专利:
    公开号 | 公开日
    US8281826B2|2012-10-09|
    US20100218850A1|2010-09-02|
    CA2713020A1|2009-04-30|
    WO2009055488A1|2009-04-30|
    SE536139C2|2013-05-28|
    CA2713020C|2015-05-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3542302A|1968-09-11|1970-11-24|Frank Louis Salzmann Jr|Wood chipper disc and knife mounting|
    SE393763B|1973-10-25|1977-05-23|Iggesunds Bruk Ab|KNIFE DEVICE FOR TILE SHOWER|
    US4423758A|1982-02-25|1984-01-03|Murray Machinery, Inc.|Disc type wood chipper knife having position adjusting serrations|
    US4887772A|1989-02-10|1989-12-19|Carthage Machine Co., Div. Of Industrial General Corp.|Cassette knife for chipper|
    US5129437A|1991-06-27|1992-07-14|Carthage Machine Company|Wood chipper knife holder with replaceable wearplate|
    US5820042A|1997-06-17|1998-10-13|Wood Technology, Inc.|Wood chipper rotor head knife holder and knife assembly|
    CA2686670C|2002-01-17|2012-09-25|Iggesund Tools Ab|Multi-application wood working knife and clamping assembly|
    FI20025006A0|2002-02-15|2002-02-15|Rummakko Oy|Chain steel assembly|
    US7343946B2|2004-03-16|2008-03-18|Key Knife, Inc.|High speed planer head|FI122578B|2008-12-05|2012-03-30|Andritz Oy|Method and arrangement for improving the attachment arrangement of the chopping blade|
    US9375723B2|2013-04-29|2016-06-28|Vermeer Manufacturing Company|Cutter assembly and adjustable cutter for use in comminuting apparatus|
    DE102015005859B4|2015-05-11|2018-03-08|Pallmann Maschinenfabrik Gmbh & Co. Kg|Disc chipper for shredding chunky feed, in particular of wood|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US98165207P| true| 2007-10-22|2007-10-22|
    PCT/US2008/080818|WO2009055488A1|2007-10-22|2008-10-22|Sharp edged knife stop|
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