Clamp device for meat with bones

Abstract

The clamp device for meat with bones comprises a plurality of holding blocks and a displacement limiting part. The gripping blocks have gripping parts capable of coming into contact with the outer peripheral surface of the periphery of the bone part of the boned meat, and are provided so as to be relatively displaceable in the direction in which the gripping parts approach and leave each other. The displacement restricting part restricts the displacement of a plurality of gripping pieces that grip the boned meat in a direction away from each other.

Description

Technical Field

[0001] The invention relates to a clamp device for meat with bones.

[0002] This application claims priority based on Japanese patent application No. 2022-150206 filed on September 21, 2022, and its contents are incorporated herein. Background Art

[0003] In recent years, meat separation devices (deboning devices) for separating meat from bone-in meat such as pigs and chickens have been developed (for example, see Patent Document 1).

[0004] In this meat stripping device, the end of the bone part (e.g., the condyle) of the bone-in meat is held by a clamp device, and in this state, the bone-in meat is transported to various processing stations for various processing. For example, at the meat stripping processing station, the bone-in meat with the condyle held by the clamp device is cut along the bone part by a slitting knife, and then the meat part around the bone part is cut by a round blade knife, and the meat part is stripped by a meat separator.

[0005] The clamp device for holding the end of the bone part has a substantially U-shaped locking groove on a bottom plate that maintains a substantially horizontal posture, and the end of the bone part with bone and flesh is locked through the locking groove. At the end of the bone part with bone and flesh, such as the ankle, the diameter of the outer circumference becomes thicker toward the terminal end in the extension direction. The clamp device uses the shape characteristics of the end of the bone part to lock the part of the bone part where the outer circumference diameter becomes thicker at the left and right side edges of the locking groove.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent No. 5331244 Summary of the invention

[0009] Problems to be solved by the invention

[0010] However, in the above-mentioned conventional clamp device, since the width of the retaining groove for retaining the end of the bone portion is fixed, the width of the retaining groove is determined to be substantially the same as the average outer diameter of the end of the bone portion of the bone-with-meat to be processed. Therefore, if the thickness deviation of the bone portion (the end of the bone portion) of the bone-with-meat to be processed is large, the bone-with-meat cannot be processed by the same clamp device. In other words, if the thickness of the end of the bone portion is too thick compared to the width of the retaining groove, the end of the bone portion cannot be retained in the retaining groove; if the thickness of the end of the bone portion is too thin compared to the width of the retaining groove, the end of the bone portion will fall off from the retaining groove.

[0011] Therefore, when processing bone-in meat with large deviations in thickness of the end of the bone, it is necessary to prepare a plurality of clamp devices with different groove widths of the locking grooves, and replace the clamp devices according to the thickness of the end of the bone.

[0012] An object of the present invention is to provide a meat-with-bone clamp device capable of reliably grasping meat-with-bone even when there is a variation in thickness of the end of the bone portion of the meat-with-bone.

[0013] Means for solving problems

[0014] According to one aspect of the present invention, the clamp device for bone-in meat is characterized in that it includes a plurality of gripping blocks and a displacement limiting portion, the plurality of gripping blocks having gripping parts that can abut against the outer peripheral surface around the bone part of the bone-in meat, the plurality of gripping blocks being arranged to be relatively displaced in directions toward and away from one another, and the displacement limiting portion limiting the displacement of the plurality of gripping blocks gripping the bone-in meat in directions away from each other.

[0015] According to the above structure, when the bone-carrying meat is held by the clamp device, the holding parts of the plurality of holding blocks are displaced in directions away from each other, and the end of the bone part such as the ankle of the bone-carrying meat is inserted between the holding parts of the plurality of holding blocks. In this state, the displacement of the plurality of holding blocks in directions away from each other is limited by the displacement limiting part. In addition, in this specification, the so-called "bone part" also includes the case where a part of other tissues such as skin or meat is covered on the outer surface of the bone.

[0016] As a result, even if there is a deviation in the thickness around the bone portion of the meat with bones, the meat with bones can be reliably grasped by the clamp device.

[0017] The pair of holding blocks may be configured to include a clamping portion and an arm portion, wherein the clamping portion has the clamping portion at the side edges facing each other and clamps the outer peripheral surface of the bone-in meat in a substantially horizontal posture, and the arm portion extends upward from the clamping portion. At least one of the arms can rotate around the rotation axis so that the holding portions of the pair of holding blocks are displaced in directions of approaching and moving away from each other.

[0018] In this case, by rotating the arm of at least one of the holding blocks around the axis of rotation, the clamping portion of at least one of the holding blocks can be separated from the clamping portion of the other holding block while increasing the inclination angle. Thus, when the end of a bone such as an ankle with flesh is held by the holding block, the volume of the space portion for accommodating the bone on the upper side of the two clamping portions is expanded. As a result, one end side of the bone can be easily set between the two clamping portions. In addition, if the two clamping portions are shifted in a direction close to each other, the two clamping portions become approximately horizontal, and one end side of the bone can be firmly held by the holding portion.

[0019] The arm portions of the pair of holding blocks may be configured to be rotatable around the rotation axis.

[0020] In this case, by rotating the pair of holding blocks around the rotation axis, the distance between the two clamping parts can be increased while tilting them. Therefore, when the end of the bone part such as the ankle of the bone-carrying meat is held by the holding block, the end of the bone part can be more easily set on the upper side of the two clamping parts. In addition, at this time, since the inclination angles of the pair of holding blocks can be set to approximately the same angle, the bone-carrying meat can be supported by the two holding blocks in a well-balanced manner.

[0021] It can be configured that a guide protrusion extending parallel to the rotation axis is provided on each of the arm portions of a pair of the holding blocks, and the displacement limiting portion has a displacement limiting block, which has a displacement limiting groove capable of abutting against the two guide protrusions, and the displacement limiting block is configured to be able to shift in a direction along the displacement limiting groove, and the groove width of the displacement limiting groove becomes narrower toward one side.

[0022] In this case, when the displacement limiting groove of the displacement limiting block abuts against the guide protrusions of the pair of holding blocks while the pair of holding blocks are holding the flesh with bones, the displacement of the pair of holding blocks in the direction away from each other is limited by the displacement limiting block. At this time, if the displacement limiting block is displaced so that the side where the width of the displacement limiting groove narrows approaches the two guide protrusions, the width of the holding portion of the pair of holding blocks is narrowed, and the bone portion of the flesh with bones is firmly held by the pair of holding blocks. Therefore, when this structure is adopted, although it is a simple structure, the end of the bone portion such as the ankle of the flesh with bones can be firmly held by the pair of holding blocks.

[0023] The displacement restricting portion may further include a force applying member that applies force to the displacement restricting block in a direction approaching the two guide protrusions on the side where the groove width of the displacement restricting groove becomes narrower.

[0024] In this case, one end side of the bone-bearing meat is set between the pair of holding blocks in a state where the displacement limiting block is separated from the two guide protrusions. If the position restriction of the displacement limiting block is released in this state, the displacement limiting block is displaced by the force of the force-applying member. At this time, the displacement limiting groove of the displacement limiting block presses the two guide protrusions in a direction that makes the two guide protrusions approach each other. As a result, the pair of holding blocks are pressed against the outer peripheral surface of the bone-bearing meat by a predetermined load by the force of the force-applying member.

[0025] The holding portion may be configured as a recessed portion provided on the side edge portion of the clamping portion.

[0026] In this case, since the pair of clamping parts abut against the outer peripheral surface of the meat with bones by the recessed parts, the outer peripheral surface of the meat with bones is stably grasped by the pair of grasping blocks.

[0027] The recess may be provided with a receiving portion and a tapered portion, wherein the receiving portion is used to receive the outer peripheral surface of the bone-in meat, and the tapered portion is inclined from a side separated from the receiving portion toward a deepest portion of the recess.

[0028] In this case, one end side of the boned meat is disposed between the pair of clamping parts. When the pair of clamping parts are displaced in a direction approaching each other in this state, the outer peripheral surface of the boned meat is accommodated by the receiving part of the recess and receives a pressing force from the gradually narrowing part of the recess. Since the gradually narrowing part is inclined toward the newest part of the recess, a part of the pressing force in the direction of bringing the clamping parts closer to each other can be made to act as a component force pressing the boned meat in the direction of the receiving part. Therefore, the boned meat held by the clamping part is maintained in a stable posture by the gradually narrowing part and the receiving part in the recess.

[0029] The plurality of holding blocks may be configured to include a first holding block and a second holding block whose holding portions can approach and move away from each other, and the displacement limiting portion may include a block force applying component that applies force to at least one of the first holding block and the second holding block in a direction in which the holding portions approach each other.

[0030] In this case, when the bone-bearing meat is held by the clamp device, the interval between the holding parts of the first holding block and the second holding block is expanded to overcome the force of the block force component, and the end of the bone part such as the condyle of the bone-bearing meat is inserted between these holding parts. In this way, if the end of the bone part such as the condyle of the bone-bearing meat is inserted between the holding parts, the force of the block force component increases as the opening amount between the holding parts increases, and the opening between the holding parts is limited by the force of the block force component. As a result, even if the thickness around the bone part of the bone-bearing meat is different, the bone-bearing meat can be reliably held by the clamp device.

[0031] The first holding block can be configured to be fixed to an external fixing device, and to be provided with a substantially horizontal rotation axis that can rotatably support the second holding block, the second holding block being supported on the rotation axis so that gravity acts on the holding portion of the second holding block in a direction close to the holding portion of the first holding block.

[0032] In this case, when the end of a bone part such as an ankle with flesh is inserted between the holding parts, the force of the block force component is overcome and the interval between the holding parts of the first holding block and the second holding block is expanded. At this time, the second holding block rotates upward with a substantially horizontal rotation axis as the center relative to the first holding block fixed to the external fixing device. When the second holding block rotates upward with the rotation axis as the center, the dead weight of the second holding block acts in a direction that makes the holding part of the second holding block approach the holding part of the first holding block. Therefore, when the interval between the holding parts of the first holding block and the second holding block is pushed and expanded by a bone part such as an ankle with flesh, in addition to the force of the block force component, the dead weight of the second holding block also presses the bone part such as the ankle with flesh. Therefore, when this structure is adopted, the end of a bone part such as an ankle with flesh can be more firmly held by the first holding block and the second holding block.

[0033] The second holding block may include a connection arm extending substantially horizontally on one side of the first holding block and supported rotatably on the rotation shaft.

[0034] In this case, since the connecting arm extending approximately horizontally toward the rotation axis is provided on the second holding block, the deadweight acting on the center of gravity of the second holding block acts as a large moment to rotate the second holding block in the holding direction. Therefore, when this structure is adopted, the end of a bone part such as an ankle with flesh and bones can be more firmly held by the first holding block and the second holding block.

[0035] The block urging member may be disposed on a side portion of the second holding block opposite to a side on which the connecting arm extends.

[0036] In this case, since the block force member and its supporting portion are arranged at a position farther from the rotation axis, their weight acts as a larger moment to rotate the second holding block in the holding direction. Therefore, it is possible to suppress the block force member from becoming larger, and the end of a bone part such as an ankle with flesh can be more firmly fixed by the holding portions of the two holding blocks.

[0037] The block urging member may be a compression coil spring disposed substantially along a tangent direction of a circle centered on the central axis of the rotation shaft.

[0038] In this case, the force (spring reaction force) of the compression coil spring can be effectively applied to the second holding block. In addition, when holding a bone with flesh, the reaction force of the block force member (compression coil spring) acts on the bone as a compression load, so that the load in the fracture direction does not act on the block force member. Therefore, the durability of the block force member is further improved.

[0039] Furthermore, since the compression coil spring can be arranged along the side surface of the second gripping block on the opposite side to the extending side of the connecting arm, the entire clamp device can be further miniaturized.

[0040] Effects of the Invention

[0041] According to one aspect of the present invention, the bone-in meat clamp device includes a plurality of holding blocks capable of adjusting the distance between the holding parts and a displacement limiting part for limiting the displacement of the plurality of holding blocks in a direction away from each other. Therefore, even if the thickness of the end parts of the bone parts such as the ankle of the bone-in meat varies, the bone-in meat can be reliably grasped. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a side view of the clamp device for bone-in meat according to the first embodiment.

[0043] Figure 2 The first embodiment of the clamp device for bone-in meat Figure 1 II direction view.

[0044] Figure 3 The first embodiment of the clamp device for bone-in meat Figure 1 III-direction view.

[0045] Figure 4 It is a partially exploded perspective view of the clamp device for bone-in meat according to the first embodiment.

[0046] Figure 5 The first embodiment of the clamp device for bone-in meat is Figure 1 A cross-sectional view of line VV.

[0047] Figure 6 It is a side view of the clamp device for bone-in meat according to the second embodiment.

[0048] Figure 7 It is a perspective view of the clamp device for bone-in meat according to the second embodiment.

[0049] Figure 8 It is a front view of the clamp device for bone-in meat according to the second embodiment.

[0050] Fig. 9 It is a front view of the partially cut-away portion of the bone-bone meat clamp device of the second embodiment. DETAILED DESCRIPTION

[0051] Hereinafter, each embodiment of the present invention will be described based on the drawings. In addition, the material, shape, relative arrangement, etc. of the components described in the following embodiments are not limited to the scope of the present invention unless otherwise specified.

[0052] <First embodiment>

[0053] Figure 1 It is a side view of the clamp device 10 for bone-in meat (hereinafter referred to as "clamp device 10") according to the present embodiment. Figure 2 yes Figure 1 II direction view, Figure 3 yes Figure 1 In addition, Figure 4 is a partially exploded perspective view of the clamp device 10, Figure 5 is along Figure 1 A cross-sectional view of line VV.

[0054] In the present embodiment, edible chicken thigh meat is processed as the bone-in meat 2. However, the bone-in meat 2 to be processed is not limited to edible chicken thigh meat, and may be limbs of a pig or the like.

[0055] The femur b1 and tibia b2 of the edible chicken leg (bone-in meat 2) are connected by the knee joint b3, and the condyle b4 is connected to the end of the tibia b2. Among the bone parts b, the connection between the tibia b2 and the condyle b4 is the thinnest, and the outer diameter of the condyle b4 increases from the connection to the end.

[0056] The clamp device 10 is mounted on the lifting device 12 and moves up and down together with the lifting device 12. In addition, the lifting device 12 is supported by a transport device (not shown) and moves between multiple processing stations by the movement of the transport device. The clamp device 10 makes the condyle b4 of the bone-bearing meat 2 face upward, and grasps the outer peripheral surface near the condyle b4, thereby suspending and supporting the bone-bearing meat 2.

[0057] The clamp device 10 includes: a base plate 13 connected to the lifting device 12, a pair of holding blocks 14 rotatably supported on the base plate 13, a displacement limiting block 15 (displacement limiting portion) for limiting the displacement of the pair of holding blocks 14 holding the condyle b4 of the bone and flesh 2 in a direction away from each other (opening direction), and a disengagement limiting rod 16 for limiting the disengagement of the condyle b4 of the bone and flesh 2 from the holding blocks 14.

[0058] The bottom plate 13 is formed in a substantially rectangular shape when viewed from the front, and is provided to protrude vertically downward from the lower end of the lifting device 12. A pair of rotation shafts 17 are installed at intervals in the width direction near the lower end of the bottom plate 13. The pair of rotation shafts 17 protrude toward one side in the plate thickness direction of the bottom plate 13, and the upper end of each holding block 14 is rotatably supported by the protruding portion of the rotation shaft 17.

[0059] The holding block 14 includes: a substantially rectangular plate portion 18 (clamping portion) that is long in one direction, a plate-shaped arm portion 19 that extends from one end portion of the plate portion 18 in the longitudinal direction in a direction perpendicular to the longitudinal direction, and a side cover 30 that covers the outside of the space portion clamped by the plate portion 18 and the arm portion 19. The extended end of the arm portion 19 of each holding block 14 is rotatably supported on a corresponding rotation shaft 17 that protrudes from the bottom plate 13. The rotation shaft 17 penetrates the arm portion 19 in the plate thickness direction.

[0060] In one holding block 14 and the other holding block 14, the side edges of the plate portions 18 in the length direction are opposite to each other. Here, if the side of the pair of plate portions 18 that is opposite to each other is called the inner side, a recessed portion 20 is formed on the inner side edge of the plate portion 18 to clamp the outer peripheral surface near the condyle b4 of the bone and flesh 2. In a state where the corresponding arm portions 19 are supported by the rotation shaft 17, the pair of plate portions 18 hold the outer peripheral surface near the condyle b4 in a substantially horizontal posture. Each arm portion 19 can rotate around the central axis of the corresponding rotation shaft 17, that is, the rotation axis L1, L2.

[0061] In the present embodiment, the recessed portion 20 constitutes a gripping portion in the gripping block 14. In addition, the arm portion 19 of each gripping block 14 extends upward relative to the plate portion 18 in a substantially horizontal posture.

[0062] The pair of gripping blocks 14 rotates around the rotation axes L1 and L2 on the upper ends of the arms 19, whereby the inner side edge portions (recesses 20) of the plate portions 18 are relatively displaced in a manner of approaching and moving away from each other. Therefore, the pair of gripping blocks 14 are provided so as to be relatively displaceable in the directions in which the gripping portions (recesses 20) approach and move away from each other.

[0063] A cylindrical guide protrusion 21 extending parallel to the rotation axis lines L1 and L2 is protruded from the middle of the extension direction of each arm portion 19 of the gripping block 14 (position below the rotation axis 17). Each guide protrusion 21 is protruded from the surface of the arm portion 19 on the side opposite to the extension side of the plate portion 18 so as to be substantially perpendicular to the extension direction of the arm portion 19.

[0064] The displacement limiting block 15 is composed of a substantially rectangular plate-shaped block with sufficient thickness and high rigidity, and the upper end thereof is supported at the lower end of the lifting device 12 so as to be able to be raised and lowered. The displacement limiting block 15 is arranged substantially parallel to the bottom plate 13 on the outer side of the bottom plate 13 (the side separated from the holding block 14 by sandwiching the bottom plate 13). Figure 2 , Figure 4 As shown in FIG. 1 , a substantially U-shaped displacement limiting groove 22 opening downward is formed on the displacement limiting block 15. The displacement limiting groove 22 penetrates the displacement limiting block 15 in the plate thickness direction, and is formed so that the groove width gradually narrows from the lower end toward the upper side. The inner surface of the displacement limiting groove 22 can abut against the outer peripheral surfaces of the two guide protrusions 21 protrudingly provided on the pair of holding blocks 14.

[0065] Here, the displacement limiting block 15 is forced downward by a force applying component 31 such as a coil spring. In other words, the displacement limiting block 15 is forced by the force applying component 31 in a direction close to the two guide protrusions 21 toward the side (upper end side) where the groove width of the displacement limiting groove 22 is narrowed. The roughly U-shaped displacement limiting groove 22 of the displacement limiting block 15 is pressed against the outer peripheral surface of the two guide protrusions 21 by the force of the force applying component 31. As a result, the two guide protrusions 21 are subjected to a pressing force in a direction approaching each other. As a result, a pair of holding blocks 14 rotate around the rotation axes L1 and L2 so that the inner side edge portions (recesses 20) of the plate portion 18 approach each other. At this time, if the vicinity of the condyle b4 of the bone-bearing meat 2 is arranged between the recesses 20 of the two plate portions 18, the outer peripheral surface near the condyle b4 of the bone-bearing meat 2 is held by the two recesses 20.

[0066] In addition, if Figure 3 As shown, the above-mentioned recess 20 and the remaining meat clamping portion 23 are provided on the side edge portion of the inner side of the plate portion 18 of the holding block 14, and the remaining meat clamping portion 23 is composed of a flat surface extending in a direction substantially orthogonal to the direction in which the plate portion 18 (recess 20) approaches and moves away from each other. The remaining meat clamping portion 23 is provided adjacent to one side of the recess 20 (the side to which the arm portion 19 is connected) in the side edge portion of the inner side of the plate portion 18. When the two plate portions 18 are in a substantially horizontal posture, the remaining meat clamping portion 23 has flat surfaces parallel to each other and facing each other. When the outer peripheral surface of the bone-in meat 2 is held by the recesses 20 of the two plate portions 18, the remaining meat clamping portions 23 of the two plate portions 18 clamp the remaining meat sm (including the skin on the surface, etc.) on the outer periphery of the bone-in meat 2 from both sides at the flat surface.

[0067] The arm portion 19 of each holding block 14 extends upward from the end of the plate portion 18 on the side having the excess meat gripping portion 23. Therefore, the two holding blocks 14 are supported on the rotating shaft 17 on the side having the excess meat gripping portion 23 in a cantilevered state.

[0068] In addition, the recessed portion 20 of the plate portion 18 has: a substantially arc-shaped accommodation portion 24 for accommodating the outer peripheral surface of the bone-bearing meat 2 at a position adjacent to the residual meat clamping portion 23; and a gradually narrowing portion 25 inclined toward the deepest part of the recessed portion from the side separated from the residual meat clamping portion 23. When the outer peripheral surface of the bone-bearing meat 2 is clamped between the two plate portions 18, the gradually narrowing portion 25 presses the residual meat sm on the outer periphery of the bone portion b toward the residual meat clamping portion 23.

[0069] also, Figure 3 Reference numeral 33 in the figure denotes a guide slope for guiding the bone part b to the space between the two plate parts 18 when the bone part b (the part near the condyle b4 ) with the bone and flesh 2 is grasped between the two plate parts 18 .

[0070] in addition, Figure 1 The illustrated disengagement restriction lever 16 includes: a substantially L-shaped lever body 35 rotatably supported on the lifting device 12, and a pressing roller 36 rotatably supported on one end of the lever body 35. The lever body 35 is rotated and forced in a direction in which the end of the pressing roller 36 is close to the holding block 14 by a force-applying member (not shown). When the bone-bearing meat 2 is held between a pair of holding blocks 14, when the outer peripheral surface of the pressing roller 36 abuts against the outer peripheral surface of the end of the bone portion b of the bone-bearing meat 2, the separation of the bone-bearing meat 2 is restricted by the force of the force-applying member, and the holding posture of the bone-bearing meat 2 is maintained constant.

[0071] As described above, the clamp device 10 of this embodiment includes: a pair (plurality) of gripping blocks 14 capable of adjusting the distance between the recesses 20 (gripping parts) and a displacement limiting block 15 (displacement limiting part) for limiting the displacement of the pair (plurality) of gripping blocks 14 in the direction of being away from each other. Therefore, when the clamp device 10 of this embodiment is used, even if the thickness of the end of the bone part b of the bone-bearing meat 2 varies, the bone-bearing meat 2 can be reliably gripped.

[0072] In addition, in the clamp device 10 of the present embodiment, the holding block 14 has a plate portion 18 and an arm portion 19, a holding portion (recess 20) is provided on the inner side edge portion of the plate portion 18, and a pair of plate portions 18 hold the outer peripheral surface of the bone-bearing meat 2 in a substantially horizontal posture. Furthermore, the arm portion 19 is supported so as to be rotatable around the rotation axes L1 and L2, whereby the two plate portions 18 are displaced in directions approaching and moving away from each other. Therefore, when the bone portion b of the bone-bearing meat 2 is held on the holding block 14, the two plate portions 18 are separated from each other, and the inclination of each plate portion 18 increases. As a result, the accommodation space of the bone portion b on the upper side of the two plate portions 18 is expanded, and one end side of the bone portion b can be easily set between the two plate portions 18.

[0073] Furthermore, when the two plate portions 18 are displaced in a direction approaching each other, the two plate portions 18 are in a substantially horizontal posture, so that one end side of the bone portion b can be firmly grasped by the grasping portion (recess 20 ) of the plate portion 18 .

[0074] In the present embodiment, the arms 19 of the two gripping blocks 14 are rotatable about the rotation axes L1 and L2 , respectively. However, only one arm 19 of the two gripping blocks 14 may be rotatable about the rotation axis.

[0075] However, when the arm portions 19 of the two holding blocks 14 are respectively arranged to be rotatable about the rotation axes L1 and L2 as in the present embodiment, the two plate portions 18 are tilted in the same manner when holding the meat 2, so that the meat 2 can be easily placed between the two plate portions 18. In addition, at this time, since the tilt angles of the pair of holding blocks 14 (plate portions 18) can be set to be substantially the same, the meat 2 can be supported by the two holding blocks 14 in a well-balanced manner.

[0076] In addition, the clamp device 10 of the present embodiment is provided with guide protrusions 21 extending parallel to the rotation axes L1 and L2 on each arm portion 19 of the pair of gripping blocks 14, and is provided with displacement limiting grooves 22 capable of abutting against the two guide protrusions 21 on the displacement limiting block 15. Furthermore, the displacement limiting block 15 is configured to be displaceable in a direction along the displacement limiting grooves 22, and is set so that the groove width of the displacement limiting grooves 22 becomes narrower toward one side.

[0077] Therefore, when this structure is adopted, although it is a simple structure, by pressing the displacement limiting groove 22 of the displacement limiting block 15 against the two guide protrusions 21, the bone part b of the bone-with-flesh 2 can be firmly grasped by the pair of grasping blocks 14.

[0078] Furthermore, in the clamp device 10 of the present embodiment, the displacement limiting block 15 is forced by the force applying member 31 in the direction close to the two guide protrusions 21 on the side where the groove width of the displacement limiting groove 22 is narrowed. Therefore, after the bone-bearing meat 2 is set between the pair of holding blocks 14, the holding portion (recess 20) of the holding block 14 can be pressed against the outer peripheral surface of the bone-bearing meat 2 with a predetermined load by the force of the force applying member 31.

[0079] Therefore, when this structure is adopted, the holding state of the meat with bones 2 by the pair of holding blocks 14 can be automatically fixed by only releasing the movement restriction of the displacement restriction block 15, and the holding of the meat with bones 2 can be made more stable.

[0080] In the clamp device 10 of the present embodiment, the gripping portion of the gripping block 14 is constituted by the recessed portion 20 provided at the side edge of the plate portion 18 . Therefore, the outer peripheral surface of the bone-in meat 2 can be stably supported by the recessed portion 20 .

[0081] Furthermore, in the clamp device 10 of the present embodiment, a receiving portion 24 and a tapered portion 25 are provided in the recess 20 of the plate portion 18. The receiving portion 24 is used to receive the outer peripheral surface of the bone-in meat 2, and the tapered portion 25 is inclined from the side separated from the receiving portion 24 toward the deepest part of the recess 20. Therefore, one end side of the bone-in meat 2 is provided between the pair of plate portions 18. When the pair of plate portions 18 are displaced toward each other in this state, the outer peripheral surface of the bone-in meat 2 is received by the receiving portion 24 of the recess 20 and receives a pressing force from the tapered portion 25 of the recess 20.

[0082] Therefore, when this structure is adopted, the bone-in meat 2 held by the plate portion 18 can be stably supported by the tapered portion 25 and the accommodating portion 24 in the recess 20 .

[0083] In addition, in the clamp device 10 of the above embodiment, a pair of holding blocks 14 are provided, and the holding portions (recesses 20) of the pair of holding blocks 14 are close to and away from each other, but the number of holding blocks 14 is not limited to two, and may be three or more. In this case, the three or more holding blocks 14 form a structure that surrounds the outer peripheral surface of the bone-in meat 2 from the outside.

[0084] In addition, in the above-mentioned embodiment, the recessed portion 20 formed on the side edge of the plate portion 18 constitutes the gripping portion of the gripping block 14, but the shape of the gripping portion of the gripping block 14 is not limited to the recessed portion 20. As long as it is a shape capable of gripping the outer peripheral surface of the bone-bearing meat 2, the shape of the gripping portion may be a flat shape or a partially concave and convex shape.

[0085] In addition, in the above-mentioned embodiment, the displacement limiting portion that limits the displacement of the plurality of gripping blocks 14 in the direction away from each other is composed of the displacement limiting block 15 having the displacement limiting groove 22, but the structure of the displacement limiting portion is not limited thereto. The displacement limiting portion may be, for example, a multi-stage locking mechanism, an actuator, etc. that can limit the displacement of the plurality of gripping blocks 14 in the direction away from each other at any position.

[0086] In addition, in the above-mentioned embodiment, as a means for making the holding parts of the plurality of holding blocks 14 approach and move away from each other, although the holding blocks 14 are rotatably supported on the rotation shaft 17, the means for making the holding parts of the plurality of holding blocks 14 approach and move away from each other is not limited to this. As a means for making the holding parts of the plurality of holding blocks 14 approach and move away from each other, for example, a mechanism in which the plurality of holding blocks move linearly in the direction of approaching and moving away from each other may be used.

[0087] In addition, in the above-mentioned embodiment, the plate portions 18 of the pair of holding blocks 14 are configured to hold the end of the boned meat 2 in a substantially horizontal position, but the holding of the end of the boned meat 2 by the holding blocks 14 is not necessarily limited to holding in a substantially horizontal position. For example, the holding blocks 14 may hold the end of the boned meat 2 in an obliquely inclined position or in a vertical position.

[0088] <Second embodiment>

[0089] Figure 6 It is a side view of the clamp device 110 for bone-in meat (hereinafter referred to as "clamp device 110") of this embodiment. Figure 7 is a perspective view of the clamp device 110, Figure 8 is a front view of the clamp device 110. In addition, Fig. 9 It is a front view in which a part of the clamp device 110 is broken away.

[0090] Figures 6 to 9 In the following description, the same reference numerals are given to the same parts as those in the first embodiment. In the following description, the description of the parts overlapping with those in the first embodiment is partially omitted.

[0091] The clamp device 110 is installed on the lifting device 12 and moves up and down together with the lifting device 12. The clamp device 110 makes the condyle b4 of the bone-carrying meat 2 face upward, and grasps the outer peripheral surface near the condyle b4, thereby suspending and supporting the bone-carrying meat 2. The lifting device 12 is supported by a transport device (not shown) and moves between multiple processing stations through the movement of the transport device.

[0092] In the present embodiment, the lifting device 12 constitutes a fixing device for fixing the exterior of the clamp device 110 .

[0093] The clamp device 110 includes: a first holding block 114A and a second holding block 114B having holding pieces 40a, 40b (holding parts) that can abut against the outer peripheral surface of the bone part b (bone condyle b4) of the bone-bearing flesh 2; and a block force member 60 that applies a force to the second holding block 114B in a direction that brings the holding pieces 40a, 40b (holding parts) closer to each other. In the first holding block 114A and the second holding block 114B, the holding pieces 40a, 40b (holding parts) can approach and move away from each other.

[0094] The first holding block 114A includes a base portion 41 fixed to the lower end of the lifting device 12 , a clamping portion 42a having a holding piece 40a , and an arm portion 43a extending upward from the clamping portion 42a and connecting the clamping portion 42a and the base portion 41 .

[0095] The base 41 includes a base body 41a that is a rectangular parallelepiped that is long in the vertical direction, a cylindrical rod 41b that protrudes upward from the upper surface of the base body 41a, and a prism-shaped (quadrangular-shaped) inclined wall 41c that bends and extends obliquely downward in one direction from the lower end of the base body 41a. A fixing hole 44 that penetrates in the diameter direction is formed in the rod 41b. A fixing shaft (not shown) for connecting the base 41 to the lifting device 12 can be inserted into the fixing hole 44.

[0096] In the following, for the sake of convenience, the side where the inclined wall 41c is bent from the base portion 41 is referred to as "rear", and the side opposite to the "rear" is referred to as "front". In addition, regarding the clamp device 110, the side located on the right side when facing the front side is referred to as "right", and the side opposite to the "right" is referred to as "left".

[0097] The upper end of the arm portion 43a is connected to the right half area of ​​the lower end of the prismatic inclined wall 41c. The arm portion 43a includes: an arm base 43ab extending vertically downward from the lower end of the inclined wall 41c, and an inclined extension portion 43ac extending obliquely forward and downward from the lower end of the arm base 43ab. The arm base 43ab has a lateral bulging area 45 that bulges to the right side than the inclined wall 41c of the base portion 41. A rotation shaft 46 extending approximately horizontally in the front-to-back direction is installed on the lateral bulging area 45. The rotation shaft 46 is formed by the shaft of a bolt that penetrates the lateral bulging area 45 in the front-to-back direction. The rotation shaft 46 is rotatably supported on the lateral bulging area 45. The clamping portion 42a is connected to the lower end of the inclined extension portion 43ac.

[0098] In addition, a recess 59 is formed in the upper area of ​​the left side surface of the arm base 43ab, and the recess 59 is used to avoid interference with the arm base 43b of the second holding block 114B when the second holding block 114B rotates in the opening direction. The area below the recess 59 on the left side surface of the arm base 43ab serves as a closing limiting surface 47, and the closing limiting surface 47 is used to abut the inner side surface of the arm base 43bb of the second holding block 114B when the second holding block 114B rotates in the closing direction.

[0099] The clamping portion 42a includes a rear inclined wall 42ar extending continuously from the inclined extension 43ac of the arm portion 43a to the front and lower sides, a bottom wall 42ab extending approximately horizontally to the front from the lower end of the rear inclined wall 42ar, a front inclined wall 42ac extending obliquely to the front and upper sides from the front end of the bottom wall 42ab, a front edge wall 42af extending to the front from the upper end of the front inclined wall 42ac, and a holding piece 40a connecting the rear inclined wall 42ar and the front edge wall 42af. The rear inclined wall 42ar, the bottom wall 42ab, the front inclined wall 42ac and the front edge wall 42af are formed to have approximately the same width in the left-right direction and are formed to have the same thickness as a whole. The holding piece 40a is formed by a long plate-shaped plate-shaped piece with the thickness direction facing the left-right direction. The front and rear ends of the holding piece 40a are connected and arranged on the side edge of the right side of the front edge wall 42af and the rear inclined wall 42ar.

[0100] In addition, a rectangular plate-shaped support wall 58 is provided on the rear surface of the lower end area of ​​the inclined wall 41c, protruding toward the rear side. A displacement limiting bolt 57 is screwed on the support wall 58, and the displacement limiting bolt 57 is used to limit the excessive rotational displacement of the second holding block 114B. In the displacement limiting bolt 57, its shaft portion 57a ​​penetrates the support wall 58 from top to bottom. In the displacement limiting bolt 57, the front end portion of the shaft portion 57a ​​of the displacement limiting bolt 57 is abutted against the upper surface of the connecting arm 56 described later of the second holding block 114B to limit the excessive rotational displacement of the second holding block 114B. The displacement limiting bolt 57 adjusts the screwing position of the shaft portion 57a ​​by a rotational action, and the rotation limit position of the second holding block 114B can be freely adjusted.

[0101] The second holding block 114B includes: an arm 43b arranged adjacent to the left side of the arm 43a of the first holding block 114A, a connecting arm 56 connected to the rear surface of the arm 43b and extending approximately horizontally from the rear position of the arm 43b toward the right side (one side of the first holding block 114A), and a clamping portion 42b having a holding piece 40b and connected to the lower end of the arm 43b.

[0102] The arm portion 43b includes a prism-shaped arm base 43bb disposed below the substantially left half of the inclined wall 41 of the first gripping block 114A with a sufficient gap therebetween, and an inclined extension portion 43bc extending obliquely forward and downward from the lower end of the arm base 43bb.

[0103] The connecting arm 56 is connected to the rear surface of the upper area of ​​the arm base 43bb, and extends to a position reaching the rear surface of the side bulging area 45 of the arm base 43ab of the first gripping block 114A. The extension end side portion of the connecting arm 56 is connected to the end of the rotation shaft 46 (the shaft of the bolt) supported by the side bulging area 45 in a non-rotatable (integrally rotatable) manner. The second gripping block 114B is rotatably supported on the second gripping block 114B with the rotation shaft 46 as a fulcrum. The second gripping block 114B can rotate around the axis (rotation axis) of the rotation shaft 46.

[0104] In addition, in the present embodiment, the connection arm 56 is formed of an integral member, but the connection arm 56 may be formed by connecting a plurality of members.

[0105] The clamping portion 42b includes a rear inclined wall 42br extending continuously forward and downward from the inclined extension 43bc of the arm portion 43b, a bottom wall 42bb extending forward and approximately horizontally from the lower end of the rear inclined wall 42br, a front inclined wall 42bc extending forward and upward from the front end of the bottom wall 42bb, a front edge wall 42bf extending forward from the upper end of the front inclined wall 42bc, and a holding piece 40b for connecting the rear inclined wall 42br and the front edge wall 42bf. The rear inclined wall 42br, the bottom wall 42bb, the front inclined wall 42bc, and the front edge wall 42bf are formed to have approximately the same width in the left-right direction and are formed to have the same thickness as a whole. The holding piece 40b is formed by a long plate-shaped plate-shaped piece with the thickness direction facing the left-right direction. The front and rear ends of the holding piece 40b are connected and arranged at the side edge of the front edge wall 42bf and the left side of the rear inclined wall 42br.

[0106] In addition, a recess 48 is formed at the upper edge of the inner side (the side opposite to the first holding block 114A) of the holding piece 40b of the second holding block 114B, and the recess 48 is used to accommodate a part of the bone portion b of the bone-bearing meat 2. In this embodiment, although the recess 48 is not formed on the holding piece 40a of the first holding block 114A, the recess 48 may also be provided on the holding piece 40a.

[0107] The block force member 60 of this embodiment is composed of a compression coil spring. An upper spring seat 61 is protrudingly provided on the left side surface of the lower end of the inclined wall 41c of the first holding block 114A, and a lower spring seat 62 is protrudingly provided on the left side surface of the arm base 43bb of the second holding block 114B. In the closed state where the holding pieces 40a and 40b are closest to each other, the upper spring seat 61 and the lower spring seat 62 are opposed to each other in the vertical direction. The compression coil spring as the block force member 60 is sandwiched between the upper spring seat 61 and the lower spring seat 62. In addition, a guide protrusion 61a for guiding the upper end of the compression coil spring (block force member 60) is protrudingly provided on the lower surface of the upper spring seat 61, and a guide protrusion 62a for guiding the lower end of the compression coil spring (block force member 60) is protrudingly provided on the upper surface of the lower spring seat 62.

[0108] As described above, the block force applying member 60 interposed between the upper spring seat 61 and the lower spring seat 62 is arranged on the side portion of the arm base 43bb of the second holding block 114B on the side opposite to the extending side of the connecting arm 56. The block force applying member 60 is arranged along the side surface on the left side of the arm base 43bb. In addition, the block force applying member 60 (compression coil spring) interposed between the upper spring seat 61 and the lower spring seat 62 is arranged substantially along the tangent direction of a circle centered on the central axis of the rotation shaft 46.

[0109] In the present embodiment, the block urging member 60 constitutes a displacement restricting portion that restricts displacement of the first gripping block 114A and the second gripping block 114B in directions away from each other.

[0110] Here, the center of gravity G of the second holding block 114B is as follows: Figure 8 , Fig. 9 As shown in FIG. 1 , the second gripping block 114B is disposed at a position close to the lower end of the arm portion 43b and far away to the left from the central axis of the rotation shaft 46. Therefore, in the second gripping block 114B, the deadweight acts on the position of the center of gravity G in such a manner that the gripping piece 40b (gripping portion) of the second gripping block 114B rotates in a direction approaching the gripping portion of the first gripping block 114A. Fig. 9 As shown, when the second holding block 114B opens in the direction in which the holding pieces 40a and 40b are separated from each other, in addition to the reaction force of the block force applying member 60, a moment in the closing direction due to its own weight acts on the second holding block 114B.

[0111] As described above, the clamp device 110 of this embodiment includes: the first holding block 114A and the second holding block 114B capable of adjusting the distance between the holding pieces 40a and 40b (holding parts); and the block force member 60 (displacement limiting part) for limiting the displacement of the first holding block 114A and the second holding block 114B in the direction of being away from each other. Therefore, when the clamp device 110 of this embodiment is used, even if the thickness of the end of the bone part b of the bone meat 2 is different, the bone meat 2 can be reliably held.

[0112] In addition, the clamp device 110 of the present embodiment includes: a first holding block 114A and a second holding block 114B having holding pieces 40a and 40b (holding parts); and a block force member 60 that applies a force to the second holding block 114B in a direction that brings the holding pieces 40a and 40b closer to each other. Therefore, when the interval between the holding pieces 40a and 40b of the first holding block 114A and the second holding block 114B is expanded to overcome the force of the block force member 60 and the bone part b of the bone-bearing meat 2 is inserted between these holding pieces 40a and 40b, the force of the block force member 60 increases as the opening amount of the holding pieces 40a and 40b increases, and the opening between the holding pieces 40a and 40b is limited by the force of the block force member 60. Therefore, although the clamp device 110 of this embodiment has a simple structure, even when there is a deviation in the thickness around the bone portion b of the meat with bones 2, the meat with bones 2 can be reliably grasped by the clamp device 110.

[0113] In addition, in the clamp device 110 of the present embodiment, the first holding block 114A can be fixed to the lifting device 12 (external fixing device), and a substantially horizontal rotation axis 46 that can rotatably support the second holding block 114B is provided on the first holding block 114A. Moreover, the second holding block 114B is supported by the rotation axis 46 so that gravity acts on the holding piece 40b of the second holding block 114B in a direction close to the holding piece 40a of the first holding block 114A. Therefore, when holding the bone-carrying meat 2, if the second holding block 114B is rotated upward around the rotation axis 46 on the side of the first holding block 114A, the self-weight of the second holding block 114B acts in a direction that causes the holding piece 40b of the second holding block 114B to approach the holding piece 40a of the first holding block 114A. Therefore, when the gap between the holding pieces 40a, 40b of the first holding block 114A and the second holding block 114B is pushed and expanded by the bone portion b of the meat with bone 2, in addition to the force of the block force applying component 60, the weight of the second holding block 114B will also press the bone portion b of the meat with bone 2.

[0114] Therefore, when this structure is adopted, the bone portion b of the bone-bearing meat 2 can be more firmly grasped by the first grasping block 114A and the second grasping block 114B.

[0115] In addition, in the clamp device 110 of the present embodiment, the second holding block 114B is provided with a connecting arm 56 extending substantially horizontally toward the first holding block 114A, and the extended end side of the connecting arm 56 is rotatably supported on the rotation shaft 46. In this case, since the second holding block 114B is provided with the connecting arm 56 extending substantially horizontally toward the rotation shaft 46, the deadweight acting on the position of the center of gravity G of the second holding block 114B acts as a large moment to rotate the second holding block 114B in the holding direction.

[0116] Therefore, when this structure is adopted, the bone portion b of the bone-bearing meat 2 can be more firmly grasped by the first grasping block 114A and the second grasping block 114B.

[0117] In addition, in the clamp device 110 of the present embodiment, the block force applying member 60 for applying rotational force to the second holding block 114B is arranged on the side portion of the second holding block 114B opposite to the extending side of the connecting arm 56. In this case, since the block force applying member 60 and the lower spring seat 62 are arranged at a position farther from the rotation axis 46, their weight acts as a large moment for rotating the second holding block 114B in the holding direction.

[0118] Therefore, when this structure is adopted, the size of the block urging member 60 can be suppressed, and the bone portion b of the bone-bearing meat 2 can be more firmly fixed by the holding pieces 40a and 40b of the first holding block 114A and the second holding block 114B.

[0119] In addition, in the clamp device 110 of the present embodiment, the block force member 60 is composed of a compression coil spring, which is arranged substantially along the tangent direction of a circle centered on the central axis of the rotation shaft 46. In this case, the acting force (spring reaction force) of the compression coil spring (block force member 60) can be efficiently exerted around the rotation shaft 46. In addition, when the bone part b of the bone-bearing meat 2 is grasped, the reaction force of the block force member 60 (compression coil spring) acts on the bone part b as a compression load, so the load in the fracture direction does not act on the block force member 60. Therefore, the durability of the block force member 60 is further improved.

[0120] In the present embodiment, the block urging member 60 is arranged along the side surface of the second holding block 114B opposite to the extending side of the connecting arm 56 (the left side surface of the arm base 43bb), so that the entire clamp device 110 can be further miniaturized.

[0121] In the above-mentioned embodiment, the first holding block 114A can be fixed to an external fixing device (lifting device 12), and the second holding block 114B can be rotatably supported on the rotating shaft 46 on the side of the first holding block 114A. However, the support structure of the first holding block and the second holding block is not limited to this. For example, a base component that can be fixed to an external fixing device can also be provided, so that the first holding block and the second holding block can be rotatably supported on the base component. In this case, the force of the block force member acts on the first holding block and the second holding block to move the holding pieces (holding parts) in a direction approaching each other.

[0122] In addition, the present invention is not limited to the above-mentioned embodiment, and various design changes can be made without departing from the scope of the present invention.

[0123] Description of Reference Numerals

[0124] 2: Meat with bones

[0125] 2f: Outer surface

[0126] 10: Fixture device

[0127] 12: Lifting device (external fixed equipment)

[0128] 14: Holding block

[0129] 15: Displacement limiting block (displacement limiting part)

[0130] 18: Plate (clamping part)

[0131] 19: Arm

[0132] 20: Concave part (grip part)

[0133] 21: Guide protrusion

[0134] 22: Displacement limit slot

[0135] 24: Accommodation

[0136] 25: Gradually narrowing

[0137] 31: Force-applying components

[0138] 40a, 40b: holding piece (holding part)

[0139] 46: Rotation axis

[0140] 56: Connecting arm

[0141] 60: Block force applying member (displacement limiting portion)

[0142] 110: Fixture device

[0143] 114A: First holding block (holding block)

[0144] 114B: Second holding block (holding block)

[0145] b: bone

[0146] m: meat

[0147] L1, L2: rotation axis

Claims

1. A clamp device for meat with bones, characterized in that: include: A plurality of holding blocks, each having a holding portion capable of abutting against an outer peripheral surface around a bone portion with bone and flesh, and the plurality of holding blocks are arranged to be relatively displaceable in directions in which the holding portions are close to and away from each other; as well as The displacement restricting portion restricts displacement of the plurality of holding blocks holding the bone-in meat in directions away from each other.

2. The bone-in meat clamp device according to claim 1, characterized in that: A pair of said holding blocks comprises: A clamping portion having the holding portion at side edges facing each other and clamping the outer peripheral surface of the bone-in meat in a substantially horizontal posture; and an arm portion extending upward from the clamping portion, At least one of the arm portions is rotatable about a rotation axis so that the gripping portions of the pair of gripping blocks are displaced in directions approaching and moving away from each other.

3. The bone-in meat clamp device according to claim 2, characterized in that: The arm portions of the pair of holding blocks are respectively rotatable around the rotation axis.

4. The bone-in meat clamp device according to claim 2 or 3, characterized in that: A guide protrusion extending parallel to the rotation axis is provided on each of the arm portions of the pair of holding blocks. The displacement limiting portion includes a displacement limiting block having a displacement limiting groove capable of abutting against the two guide protrusions. The displacement limiting block is configured to be displaceable in a direction along the displacement limiting groove, and a groove width of the displacement limiting groove becomes narrower toward one side.

5. The bone-in meat clamp device according to claim 4, characterized in that: The displacement limiting portion further includes: The urging member urges the displacement limiting block in a direction approaching the two guide protrusions on a side where the groove width of the displacement limiting groove becomes narrower.

6. The bone-in meat clamp device according to claim 5, characterized in that: The holding portion is constituted by a recessed portion provided at the side edge portion of the clamping portion.

7. The bone-in meat clamp device according to claim 6, characterized in that: The recess is provided with: a receiving portion for receiving the outer peripheral surface of the meat with bone; and The gradually narrowing portion is inclined from a side separated from the accommodating portion toward a deepest portion of the recess.

8. The bone-in meat clamp device according to claim 1, characterized in that: The plurality of holding blocks include a first holding block and a second holding block whose holding portions can approach and move away from each other. The displacement restricting portion includes a block urging member that urges at least one of the first gripping block and the second gripping block in a direction in which the gripping portions approach each other.

9. The bone-in meat clamp device according to claim 8, characterized in that: The first holding block can be fixed on an external fixing device and is provided with a substantially horizontal rotation axis capable of rotatably supporting the second holding block. The second holding block is supported on the rotation axis so that gravity acts on a direction in which the holding portion of the second holding block approaches the holding portion of the first holding block.

10. The bone-in meat clamp device according to claim 9, characterized in that: The second gripping block includes a connecting arm that extends substantially horizontally toward the first gripping block and is rotatably supported by the rotation shaft.

11. The bone-in meat clamp device according to claim 10, characterized in that: The block urging member is disposed on a side portion of the second holding block opposite to a side on which the connecting arm extends.

12. The bone-in meat clamp device according to claim 11, characterized in that: The block urging member is a compression coil spring disposed substantially along a tangential direction of a circle centered on the central axis of the rotation shaft.

Images