JP2024044586A - Clamp device for meat with bone, device for making cut in meat with bone and method for making cut in meat with bone - Google Patents

Abstract

To provide a clamp device for meat with bone, a device for making a cut in meat with bone and a method for making a cut in meat with bone which can easily make a cut in the vicinity of a boundary between a bone part and a meat part of the meat with bone.SOLUTION: A clamp device for meat with bone includes a pair of grip blocks 14 and a displacement regulation part. The grip block 14 includes a grip part and an excess meat sandwiching part 23. The pair of grip blocks 14 can be relatively displaced in a direction in which the grip parts and the excess meat sandwiching parts 23 thereof approach/separate from each other. The grip part can be brought into contact with the outer peripheral surface around a bone part b of the meat 2 with bone. The excess meat sandwiching parts 23 sandwich the excess meat sm of the meat 2 with bone gripped by the grip parts. The displacement regulation part regulates displacement in the separation direction of the pair of grip blocks 14 gripping the meat 2 with bone.SELECTED DRAWING: Figure 3

Description

The present invention relates to a bone-in meat clamping device, a bone-in meat scoring device, and a bone-in meat scoring method.

In recent years, meat peeling devices (deboning devices) have been developed that peel meat from bone-in meat such as pork and chicken (see, for example, Patent Document 1).

In this type of meat peeling device, the end of the bone (for example, the ankle) of the bone-in meat is gripped by a clamping device, and the bone-in meat is conveyed in this state to various processing stations where it is subjected to various treatments. be exposed. At the meat stripping processing station, the ankle is gripped by a clamping device, and the meat with the bone is incised along the bone with a creasing blade, and then the meat around the bone is cut with a round blade. Then, peel off the meat using a meat separator.

The clamp device that grips the end of the bone part has a substantially U-shaped locking groove in the bottom plate that is maintained in a substantially horizontal position, and the end of the bone part of the bone-in meat is locked by the locking groove. be done. The outer diameter of the end portion of the bone portion of bone-in meat, such as an ankle, becomes thicker toward the end portion in the extending direction. The clamp device utilizes the shape characteristics of the end portion of the bone portion to lock the thicker diameter portion of the outer periphery of the bone portion to the left and right side edges of the locking groove.

Further, the scoring blade pierces the bone-in meat suspended from the clamp device with its cutting edge in the vicinity of the boundary between the bone part and the meat part from a direction perpendicular to the extending direction of the bone part of the bone-in meat. In this state, the clamp device is raised by the operation of the actuator, so that the bone-in meat is raised relative to the scoring blade. As a result, cuts (muscles) are formed in the bone-in meat along the extending direction of the bone portion.

Patent No. 5331244

However, it is difficult to accurately insert the incision blade into the boundary between the bone and the meat of a piece of bone-in meat held by a clamping device. If the tip of the incision blade pierces the bone, part of the bone will be damaged, making it difficult to carry out the subsequent deboning process smoothly. Furthermore, if the tip of the incision blade pierces the bone too far, a lot of meat will remain on the bone side during the subsequent deboning process, causing a decrease in meat yield.

The present invention aims to provide a clamping device for bone-in meat, a device for making incisions in bone-in meat, and a method for making incisions in bone-in meat that can easily make incisions near the boundary between the bone and meat of the bone-in meat.

A clamping device for bone-in meat according to one aspect of the present invention includes a gripping part that can come into contact with an outer circumferential surface around a bone part of the bone-in meat, and a gripping part that clamps excess meat of the bone-in meat gripped by the gripping part. a pair of gripping blocks having surplus meat clamping parts for sandwiching, and provided so that the respective gripping parts and the surplus meat clamping parts can be relatively displaced in directions toward and away from each other; and a pair of gripping blocks that grip the bone-in meat. The gripping block is characterized by comprising a displacement regulating section that regulates displacement of the gripping block in the separation direction.

When the clamp device is configured as described above to hold bone-in meat, the gripping portions of the pair of gripping blocks are displaced in the direction away from each other in a state where the restriction on displacement of the pair of gripping blocks by the displacement restriction portion is released. Next, in this state, the bone of the bone-in meat is inserted between the gripping portions of the pair of gripping blocks. Thereafter, the gripping portions of the multiple gripping blocks are brought close to each other, and the bone of the bone-in meat is gripped around the bone by the gripping portions. At this time, when the bone of the bone-in meat is pressed around the bone by the gripping portions, excess meat around the bone is pushed in the direction of the excess meat clamping portions, and the excess meat of the bone-in meat is clamped by the excess meat clamping portions of the pair of gripping blocks. As a result, the excess meat is pulled outward from the bone. In this state, the displacement of the pair of gripping blocks in the direction away from each other is restricted by the displacement restriction portion.
In this state, a portion of the excess meat of the bone-in meat is pulled toward the outside of the bone, so that the incision blade can be easily inserted into the boundary between the bone and the meat in the vicinity of the excess meat.

The gripping portion is constituted by a recess provided in the mutually opposing side edges of the pair of gripping blocks, and the excess thickness holding portion is formed by recesses provided in the mutually opposing side edges of the pair of gripping blocks. , may be arranged at a position adjacent to the recess.

In this case, when the pair of gripping blocks grip the bone around the bone, the recesses allow the bone to be held stably, and the excess meat of the bone that protrudes from the recesses can be securely gripped by the excess meat gripping portion.

The excess thickness holding portion may be formed by a flat surface of the gripping block that extends in a direction substantially perpendicular to a direction in which the gripping portion approaches and leaves.

In this case, since the excess meat clamping portion is configured with a flat surface that extends in a direction that is approximately perpendicular to the direction in which the gripping portion approaches and moves away from the bone, the excess meat of the bone-in meat that protrudes from the recess can be easily guided along the flat surface in a direction away from the bone. Therefore, when this configuration is adopted, it becomes easier to insert the incision blade into the boundary between the bone and meat of the bone-in meat.

The recess may have a receiving portion that is located adjacent to the excess meat clamping portion and that receives the bone portion of the bone-in meat and its outer periphery, and a tapered portion that is located away from the excess meat clamping portion and that slopes toward the deepest part of the recess.

In this case, when the bone of the meat is gripped by the recesses of the pair of gripping blocks, the bone and its outer periphery are received in the receiving portion, and the outer periphery of the bone is pressed against the tapered portion and displaced in the direction of the excess meat clamping portion. Therefore, when this configuration is adopted, the excess meat of the meat is stably clamped in the excess meat clamping portion.

The pair of gripping blocks has the gripping portion and the excess meat gripping portion on the opposing side edges, and includes a plate portion that grips the outer surface of the bone-in meat in a substantially horizontal position, and an arm portion that extends upward from the plate portion, and at least one of the arm portions may be rotatable about a rotation axis so that the gripping portions of the pair of gripping blocks are displaced in directions toward and away from each other.

In this case, by rotating the arm portion of at least one of the gripping blocks around the rotation axis, it is possible to move the plate portion of at least one of the gripping blocks away from the plate portion of the other gripping block while increasing the inclination angle. This expands the space for receiving the bone on the upper side of the two plate portions when the bone of the bone-in meat is gripped by the gripping block. As a result, it becomes possible to easily set the end of the bone-in meat between the two plate portions. In addition, when the two plate portions are displaced toward each other, the two plate portions assume a substantially horizontal position, making it possible for the gripping portion to firmly grip the end of the bone-in meat.

Each of the arm portions of the pair of gripping blocks may be rotatable about the rotation axis.

In this case, by rotating the pair of gripping blocks about their respective rotation axes, the two plate parts can be tilted and the distance between them can be increased. This expands the space above the two plate parts to accommodate the bone. Therefore, when the end of the bone-in meat is gripped by the gripping blocks, the end of the bone-in meat can be more easily set above the two plate parts.
At this time, since the inclination angles of the pair of gripping blocks can be made substantially equal, the bone-in meat can be supported in a well-balanced manner by the two gripping blocks.

The arm portion may extend upward from an end portion of the plate portion on the side where the excess thickness holding portion is located.

In this case, the plate portion is supported by the arm portion at one end where the excess meat clamping portion is located, so the pair of plate portions can be easily pushed open from the end opposite the excess meat clamping portion. Therefore, when this configuration is adopted, it becomes easier to set the end of the bone-in meat between the two plate portions.

The device for making incisions in bone-in meat according to one aspect of the present invention is characterized by comprising any one of the clamping devices described above, and an incision making blade that inserts the tip of the blade into the vicinity of the excess meat clamped in the excess meat clamping section to make incisions along the bone in the bone-in meat.

In this case, when the bone-in meat is gripped by the pair of gripping blocks, a portion of the excess meat of the bone-in meat is pulled in a direction away from the bone by the excess meat gripping portion, and in this state, the tip of the incision blade can be easily inserted into the boundary between the bone and the meat near the excess meat.

In a method for making incisions in bone-in meat according to one aspect of the present invention, a pair of gripping blocks that can approach and separate grip the outer circumferential surface of the bone-in meat around the bone part, and remove excess meat from the bone-in meat. and a step of piercing the extra meat in the vicinity of the extra meat held by the pair of gripping blocks to make incisions in the bone-in meat along the bone parts. It is characterized by having.

In this case, incisions can be easily made in the vicinity of the boundary between the bone and meat portions of the bone-in meat while the excess meat of the bone-in meat is pulled to the outside of the bone portion.

The bone-in meat clamping device according to one aspect of the present invention is equipped with a pair of gripping blocks capable of adjusting the separation distance between the gripping portion and the excess meat clamping portion, and a displacement regulating portion that regulates the displacement of the pair of gripping blocks in the direction of separation. Therefore, when the bone-in meat is gripped by the pair of gripping blocks, the excess meat of the bone-in meat can be kept in a state in which it is pulled to the outside of the bone by the excess meat clamping portion. Therefore, when the bone-in meat clamping device according to one aspect of the present invention is employed, it is possible to easily make incisions near the boundary between the bone and meat of the bone-in meat with the excess meat of the bone pulled to the outside of the bone.

FIG. 1 is a side view of a bone-in meat incision device according to an embodiment. FIG. 2 is a view taken along arrow II in FIG. 1 of the bone-in meat incision device according to the embodiment. FIG. 3 is a view of the device for scoring bone-in meat according to the embodiment as viewed from the arrow III in FIG. FIG. 4 is an exploded perspective view of a portion of the bone-in meat clamping device according to the embodiment. FIG. 5 is a cross-sectional view of the embodiment of the incision making device for bone-in meat taken along line VV in FIG. FIG. 6 is a diagram corresponding to FIG. 3 illustrating the process of incising bone-in meat using the bone-in meat clamping device of the embodiment.

Embodiments of the present invention will be described below based on the drawings. Note that the materials, shapes, relative arrangements, etc. of the components described in the following embodiments are not intended to limit the scope of the present invention unless otherwise specified.

FIG. 1 is a side view of a bone-in meat incision device 1 (hereinafter referred to as "incision device 1") of the present embodiment. 2 is a view taken in the direction of arrow II in FIG. 1, and FIG. 3 is a view taken in direction of arrow III in FIG. Further, FIG. 4 is an exploded perspective view of a part of the bone-in meat clamping device 10 (hereinafter referred to as "clamping device 10").
The scoring device 1 makes a cut (strip) along the extending direction of the bone part b near the boundary between the bone part b and the meat part m as a step before removing the bone part b from bone-in meat 2 of pork, chicken, etc. There is a device for doing this. In this embodiment, chicken thigh meat is used as the bone-in meat 2. However, the bone-in meat 2 to be handled is not limited to chicken thighs, but may also be limbs of pigs or the like.
In the chicken thigh meat (bone-in meat 2), the femur b1 and tibia b2 are connected by a knee joint b3, and the ankle b4 is connected to the end of the tibia b2. The bone portion b is thinnest near the connecting portion between the tibia b2 and the ankle b4, and the outer diameter of the ankle b4 becomes thicker from the vicinity of this connecting portion toward the end portion.

The incision making device 1 includes a clamp device 10 that grips the vicinity of the ankle b4 of the bone-in meat 2, and a cutting edge is pierced into the bone-in meat 2 gripped by the clamp device 10, and the meat part m of the bone-in meat 2 is inserted into the bone part. A creasing blade 11 that cuts along the direction b is provided. The scoring blade 11 is supported by an actuator (not shown), and moves forward and backward in a direction intersecting the extending direction of the bone portion b of the bone-in meat 2 by the operation of the actuator.

The clamp device 10 is attached to a lifting device 12 and moves up and down together with the lifting device 12. Further, the lifting device 12 is supported by a transport device (not shown), and is moved between a plurality of processing stations by the operation of the transport device. The clamp device 10 functions as the creasing device 1 in cooperation with the creasing blade 11 at the stripping treatment station for the flesh portion m. The clamp device 10 holds the outer peripheral surface 2f of the bone-in meat 2 with the ankle b4 facing upward, thereby suspending and supporting the bone-in meat 2.

The clamping device 10 includes a base plate 13 connected to a lifting device 12, a pair of gripping blocks 14 rotatably supported by the base plate 13, and a separation of the pair of gripping blocks 14 gripping the ankle b4 of the bone-in meat 2. It is provided with a displacement regulation block 15 (displacement regulation part) that regulates displacement in the direction (opening direction), and a withdrawal regulation lever 16 that regulates withdrawal of the ankle b4 of the bone-in meat 2 from the gripping block 14.

The base plate 13 is formed in a generally rectangular shape when viewed from the front, and protrudes vertically downward from the lower end of the lifting device 12. A pair of rotating shafts 17 are attached near the lower end of the base plate 13 and spaced apart in the width direction. The pair of rotating shafts 17 protrude toward one side in the plate thickness direction of the base plate 13, and the upper ends of the gripping blocks 14 are rotatably supported on the protruding portions.

The gripping block 14 comprises a plate portion 18 having a generally rectangular shape that is long in one direction, a plate-shaped arm portion 19 that extends from one end of the longitudinal direction of the plate portion 18 in a direction perpendicular to the longitudinal direction, and a side cover 30 that covers the outside of the space between the plate portion 18 and the arm portion 19. The extending end of the arm portion 19 of each gripping block 14 is rotatably supported by a corresponding pivot shaft 17 that protrudes from the base plate 13. The pivot shaft 17 penetrates the arm portion 19 in the plate thickness direction.

In one gripping block 14 and the other gripping block 14, the side edges of the plate portions 18 in the longitudinal direction thereof face each other. Here, if the side where the pair of plate parts 18 are opposed to each other is called the inner side, the inner side edge of the plate part 18 holds the outer peripheral surface 2f of the bone-in meat 2 near the ankle b4. A recess 20 is formed. The pair of plate parts 18 grips the outer circumferential surface 2f near the ankle b4 in a substantially horizontal posture in a state where the corresponding arm part 19 is supported by the rotation shaft 17. Each arm portion 19 is rotatable around rotation axes L1 and L2, which are central axes of the corresponding rotation shafts 17.
In addition, in this embodiment, the recessed part 20 constitutes the grip part in the grip block 14. Further, the arm portion 19 of each gripping block 14 extends upward with respect to the plate portion 18 in a substantially horizontal position.

The pair of gripping blocks 14 rotates around the rotational axes L1 and L2 on the upper end side of each arm portion 19, so that the inner side edges (recessed portions 20) of each plate portion 18 approach and separate from each other. relative displacement. Therefore, the pair of gripping blocks 14 are provided so that their gripping portions (recessed portions 20) can be relatively displaced in directions toward and away from each other.

A cylindrical guide protrusion 21 extending parallel to the rotation axis lines L1, L2 is provided midway in the extension direction of each arm portion 19 of the gripping block 14 (a position below the rotation axis 17). Each guide protrusion 21 is provided on the face of the arm portion 19 opposite the side on which the plate portion 18 extends, and protrudes approximately perpendicular to the extension direction of the arm portion 19.

The displacement regulating block 15 is made of a substantially rectangular plate-shaped block having sufficient thickness and high rigidity, and its upper end is supported by the lower end of the elevating device 12 so as to be movable up and down. The displacement regulating block 15 is arranged approximately parallel to the base plate 13 on the outside of the base plate 13 (on the side separated from the gripping block 14 with the base plate 13 interposed therebetween). As shown in FIGS. 2 and 4, the displacement regulating block 15 is formed with a substantially U-shaped displacement regulating groove 22 that opens downward. The displacement regulating groove 22 is formed to penetrate the displacement regulating block 15 in the thickness direction, and the groove width gradually narrows from the lower end toward the upper side. The inner surface of the displacement regulating groove 22 can come into contact with the outer circumferential surfaces of the two guide protrusions 21 protruding from the pair of gripping blocks 14 .

Here, the displacement restriction block 15 is biased downward by a biasing member 31 such as a coil spring. In other words, the displacement restriction block 15 is biased by the biasing member 31 in a direction in which the narrow side (upper end side) of the displacement restriction groove 22 approaches the two guide protrusions 21.
The displacement restriction groove 22 of the displacement restriction block 15 is pressed against the outer peripheral surfaces of the two guide protrusions 21 by the biasing force of the biasing member 31. The two guide protrusions 21 are thus pressed in a direction in which they approach each other. As a result, the pair of gripping blocks 14 rotate about the rotation axes L1, L2 so that the inner side edges (recesses 20) of the plate portions 18 approach each other. At this time, if the vicinity of the ankle b4 of the bone-in meat 2 is positioned between the recesses 20 of the two plate portions 18, the outer peripheral surface 2f of the bone-in meat 2 near the ankle b4 will be gripped by the two recesses 20.

As shown in FIG. 3, the inner side edge of the plate portion 18 of the gripping block 14 is provided with the recess 20 and an excess meat clamping portion 23 consisting of a flat surface extending in a direction approximately perpendicular to the approaching and separating direction of the plate portion 18 (recess 20). The excess meat clamping portion 23 is provided adjacent to one side of the recess 20 (the side to which the arm portion 19 is connected) of the inner side edge of the plate portion 18. When the two plate portions 18 are in an approximately horizontal position, the flat surfaces of the excess meat clamping portions 23 face each other in parallel. When the outer peripheral surface 2f of the bone-in meat 2 is gripped by the recesses 20 of both plate portions 18, the excess meat clamping portions 23 of the two plate portions 18 clamp the outer peripheral excess meat sm (including the skin on the surface, etc.) from both sides on the flat surfaces.

The arm portion 19 of each gripping block 14 extends upward from the end of the plate portion 18 on the side where the excess meat clamping portion 23 is located. Therefore, the two gripping blocks 14 are supported by the rotating shaft 17 in a cantilevered state on the side where the excess meat clamping portion 23 is located.

The recess 20 of the plate portion 18 has a substantially arc-shaped receiving portion 24 that receives the outer peripheral surface 2f of the bone-in meat 2 at a position adjacent to the excess meat clamping portion 23, and a tapered portion 25 that slopes from the side away from the excess meat clamping portion 23 toward the deepest portion of the recess 20. The tapered portion 25 presses the excess meat sm on the outer periphery of the bone portion b toward the excess meat clamping portion 23 when the outer peripheral surface 2f of the bone-in meat 2 is clamped between both plate portions 18.
In addition, the symbol 33 in Figure 3 denotes a guide slope for guiding the bone portion b (the portion near the ankle b4) of the bone-in meat 2 between both plate portions 18 when the bone portion b (the portion near the ankle b4) is gripped between both plate portions 18.

Further, the withdrawal regulating lever 16 shown in FIG. 1 includes a substantially L-shaped lever main body 35 rotatably supported by the lifting device 12, and a pressing roller 36 rotatably supported at one end of the lever main body 35. , is equipped with. The end of the lever body 35 on the pressure roller 36 side is rotationally biased in a direction toward the gripping block 14 by a biasing member (not shown). When the bone-in meat 2 is gripped between the pair of gripping blocks 14 and the outer peripheral surface of the pressing roller 36 comes into contact with the outer peripheral surface 2f of the end of the bone b of the bone-in meat 2, the urging member is activated. The force prevents the bone-in meat 2 from coming off, and the gripping posture of the bone-in meat 2 is maintained constant.

FIG. 6 corresponds to FIG. 3 and shows the incision process of the bone-in meat 2 by the incision making device 1 in the order of (A), (B) and (C).
In the process of scoring the bone-in meat 2, first, as shown in FIG. 6(A), the lower ends (plate portions 18) of the pair of gripping blocks 14 of the clamping device 10 are pushed open to the left and right, and the end of the bone portion b of the bone-in meat 2 is inserted between the recesses 20 of the two plate portions 18 through the guide slope 33.
At this time, the fall-off prevention lever 16 is in a rotated state in which the lever body 35 is pushed upward so that the pressure roller 36 does not interfere with the bone-in meat 2. In addition, the displacement prevention block 15 is raised against the biasing force of the biasing member 31.

When the end of the bone-in meat 2 is positioned in the receiving portion 24 of the recess 20, the displacement restriction block 15, which has been raised, is lowered by the biasing force of the biasing member 31. As a result, the displacement restriction groove 22 of the displacement restriction block 15 comes into contact with the two guide protrusions 21, and the pair of gripping blocks 14 rotate to narrow the separation width of the plate portions 18. As a result, as shown in FIG. 6B, the end of the bone-in meat 2 is received and gripped in the receiving portion 24 of the recess 20, and the outer peripheral surface 2f of the end of the bone-in meat 2 is pressed by the tapered portion 25 in the recess 20. As a result, a part of the meat portion m around the bone portion b of the bone-in meat 2 is pushed toward the excess meat clamping portion 23 of the plate portion 18, and a part of the meat portion m (excess meat sm) is clamped by the excess meat clamping portions 23 of both plate portions 18. As a result, the excess meat sm of the bone-in meat 2 and its surrounding area are pulled in a direction away from the bone portion b.
Further, the displacement of the two plate portions 18 in the direction away from each other is restricted by the displacement restriction groove 22 of the displacement restriction block 15 coming into contact with the two guide protrusions 21. As a result, the bone-in meat 2 is maintained in a gripped state by the two plate portions 18.

Thereafter, as shown in FIG. 6(C), the bone-in meat 2 gripped by the clamp device 10 is incised by the incision blade 11 below the two plate parts 18. At this time, the cutting edge of the incision blade 11 pierces the boundary between the bone part b and the meat part m below the part pulled by the extra-meat holding part 23 of the clamp device 10. Thereafter, the clamp device 10 is raised by the operation of the elevating device 12, whereby the meat portion m of the bone-in meat 2 is torn along the bone portion b. This completes the incision process for the bone-in meat 2.
In this example, the clamping device 10 (bone-in meat 2 side) is raised after the cutting edge of the creasing blade 11 is pierced into the meat part m, but the creasing blade is moved with the clamping device 10 fixed. 11 may be moved downward.

(Effects of embodiment)
As described above, the clamping device 10 of the present embodiment includes a pair of gripping blocks 14 that can adjust the separation distance between the gripping portion (recessed portion 20) and the excess thickness holding portion 23, and a displacement of the pair of gripping blocks 14 in the separation direction. A displacement regulating section (displacement regulating block 15) that regulates the displacement regulating block 15 is provided. Therefore, when the outer circumferential surface 2f of the bone-in meat 2 is gripped by the pair of gripping blocks 14, the excess meat sm of the bone-in meat 2 is maintained in a state of being pulled to the outside of the bone part b by the surplus meat clamping part 23. be able to.
Therefore, in the incision making device 1 that employs the clamp device 10 of the present embodiment, the bone portion b and the meat portion of the bone-in meat 2 are Incisions can be easily made near the boundary of m.

In addition, in the clamp device 10 of this embodiment, the gripping portion of the gripping block 14 is configured by a recess 20 provided on the inner side edge of the plate portion 18, and the excess meat clamping portion 23 is disposed at a position adjacent to the recess 20 on the inner side edge of the plate portion 18. Therefore, when the pair of gripping blocks 14 grips the bone portion b of the bone-in meat 2, the recess 20 can stably hold the bone portion b, and the excess meat sm of the bone-in meat 2 that protrudes from the recess 20 can be securely clamped by the excess meat clamping portion 23.

In the clamp device 10 of this embodiment, the excess meat clamping portion 23 is configured with a flat surface extending in a direction substantially perpendicular to the direction in which the gripping portion (recess 20) approaches and moves away from the bone. Therefore, when the pair of gripping blocks 14 grips the bone portion b of the bone-in meat 2, the excess meat sm of the bone-in meat 2 protruding from the recess 20 can be easily guided in a direction away from the bone portion b along the flat surface.
Therefore, when this configuration is adopted, the incision cutting blade 11 can be more easily inserted into the boundary between the bone portion b and the meat portion m of the bone-in meat 2.

Furthermore, in the clamp device 10 of this embodiment, the recesses 20 of the gripping blocks 14 are provided with a receiving portion 24 that is disposed adjacent to the excess meat clamping portion 23 and receives the bone portion b of the bone-in meat 2 and its outer periphery, and a tapered portion 25 that is disposed at a position spaced apart from the excess meat clamping portion 23 and inclined toward the deepest portion of the recesses 20. Therefore, when the bone portion b of the bone-in meat 2 is gripped around the bone portion b by the recesses 20 of the pair of gripping blocks 14, the bone portion b of the bone-in meat 2 and its outer periphery are received by the receiving portion 24, and the outer periphery of the bone portion b of the bone-in meat 2 is pressed by the tapered portion 25 and displaced in the direction of the excess meat clamping portion 23.
Therefore, when this configuration is adopted, the excess meat sm of the bone-in meat 2 is stably clamped by the excess meat clamping portion 23.

In the clamp device 10 of this embodiment, the gripping block 14 has a plate portion 18 and an arm portion 19, a gripping portion (recess 20) is provided on the inner side edge of the plate portion 18, and the pair of plate portions 18 hold the outer peripheral surface 2f of the bone-in meat 2 in a substantially horizontal position. The arm portion 19 is supported rotatably about the rotation axes L1 and L2, so that the two plate portions 18 are displaced in a direction approaching or separating from each other. Therefore, when the bone portion b of the bone-in meat 2 is gripped by the gripping block 14, the two plate portions 18 can be separated from each other and the inclination of each plate portion 18 can be increased. Therefore, when this configuration is adopted, the receiving space for the bone portion b on the upper side of the two plate portions 18 is increased, and the end of the bone-in meat 2 can be easily set between the two plate portions 18.
In addition, when the two plate portions 18 are displaced toward each other, the two plate portions 18 assume an approximately horizontal position, making it possible for the gripping portions (recesses 20) of the plate portions 18 to firmly grip the ends of the bone-in meat 2.

In this embodiment, each arm portion 19 of the two gripping blocks 14 is rotatable around the rotational axis L1, L2, respectively, but only one arm portion 19 of the two gripping blocks 14 is rotated around the rotational axis L1, L2. It may also be possible to rotate around.
However, if the arms 19 of the two gripping blocks 14 are made rotatable around the rotation axes L1 and L2, as in this embodiment, when gripping the bone-in meat 2, the two plate parts By similarly inclining the plate portions 18, the bone-in meat 2 can be easily set between the two plate portions 18. Further, at this time, since the inclination angles of the pair of gripping blocks 14 (plate portions 18) can be made to be approximately the same angle, the bone-in meat 2 can be supported by the two gripping blocks 14 in a well-balanced manner.

Further, in the clamping device 10 of the present embodiment, the arm portion 19 of the gripping block 14 extends upward from the longitudinal end of the plate portion 18 on the side where the excess thickness holding portion 23 is located. Therefore, when setting the end of the bone-in meat 2 between the plate parts 18 of the pair of gripping blocks 14, the pair of plate parts 18 can be easily pushed open from the end opposite to the excess meat holding part 23. be able to.
Therefore, when this configuration is adopted, the end portion of the bone-in meat 2 can be more easily set between the two plate portions 18.

The present invention is not limited to the above-described embodiment, and various design modifications are possible without departing from the spirit and scope of the present invention.
For example, in the above embodiment, the recess 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 recess 20. As long as the gripping portion has a shape that can grip the outer circumferential surface 2f of the bone-in meat 2, the gripping portion may have a flat shape or a shape with some unevenness.

Furthermore, in the above embodiment, the displacement regulating section that regulates the displacement of the plurality of gripping blocks 14 in the separation direction is constituted by the displacement regulating block 15 having the displacement regulating groove 22; but not limited to. The displacement regulating section may be, for example, a multistage locking mechanism, an actuator, or the like that can regulate the displacement of the plurality of gripping blocks 14 in the separating direction at any position.

In addition, in the above embodiment, the means for moving the gripping portions of the multiple gripping blocks 14 toward and away from each other is to support the gripping blocks 14 so that they can rotate freely on the rotating shaft 17, but the means for moving the gripping portions of the multiple gripping blocks 14 toward and away from each other is not limited to this. As a means for moving the gripping portions of the multiple gripping blocks 14 toward and away from each other, for example, it is also possible to use a mechanism in which the multiple gripping blocks move linearly in directions in which they move toward and away from each other.

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

1... Creasing device 2... Meat with bone 2f... Outer peripheral surface 10... Clamping device 11... Creasing blade 14... Gripping block 15... Displacement regulation block (displacement regulation part)
18...Plate part 19...Arm part 20...Concave part (gripping part)
23...Excess thickness holding part 24...Receiving part 25...Tapered part L1, L2...Rotation axis sm...Excess thickness

Claims (9)

a gripping part that can come into contact with the outer circumferential surface around the bone part of the bone-in meat; and an extra-meat holding part that pinches the excess meat of the bone-in meat gripped by the gripping part, the gripping parts of each other; and a pair of gripping blocks in which the extra-thickness gripping portions are provided so as to be relatively movable in directions toward and away from each other;
A clamping device for bone-in meat, comprising: a displacement regulating section that restricts displacement of the pair of gripping blocks that grip the bone-in meat in a direction of separation. The gripping portions are formed by recesses provided on side edges of the pair of gripping blocks facing each other,
2. The bone-in meat clamping device according to claim 1, wherein the excess meat clamping portion is disposed at a position adjacent to the recess on one of the opposing side edges of the pair of gripping blocks. The bone-in meat according to claim 2, wherein the extra meat holding part is constituted by a flat surface of the gripping block that extends in a direction substantially perpendicular to a direction in which the gripping part moves toward and away from the gripping block. clamping device. The recessed portion is
a receiving portion disposed adjacent to the excess meat holding portion and configured to receive the bone portion of the bone-in meat and its outer periphery;
4. The bone-in meat clamping device according to claim 2, further comprising a tapered portion disposed at a position spaced from the excess meat clamping portion and inclined toward the deepest portion of the recess. The pair of gripping blocks are
a plate portion having the gripping portion and the extra meat holding portion on mutually opposing side edges, and holding the outer circumferential surface of the bone-in meat in a substantially horizontal position;
an arm portion extending upward from the plate portion,
2. At least one of the arm portions is rotatable about a rotation axis so that the gripping portions of the pair of gripping blocks move toward and away from each other. The bone-in meat clamping device described in . The bone-in meat clamping device according to claim 5, characterized in that each of the arm portions of the pair of gripping blocks is rotatable about the rotation axis. The bone-in meat clamping device according to claim 5, characterized in that the arm portion extends upward from the end of the plate portion on the side where the excess meat clamping portion is located. A clamping device according to claim 1 or 2;
and a scoring blade that pierces the vicinity of the excess meat clamped in the excess meat clamping section with its tip to score the bone-in meat along the bone. a step of gripping the outer circumferential surface around the bone portion of the bone-in meat with a pair of grip blocks that can be moved closer and closer to each other, and pinching the excess meat of the bone-in meat in a direction away from the bone portion;
A step of making a score in the bone-in meat along the bone portion by piercing a score-making blade in the vicinity of the extra meat held by the pair of gripping blocks. How to put it in.

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