JP3483712B2 - Breast meat separation method and device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a chicken carcass upper body for meat (hereinafter referred to as “Kabuto”), by cutting biological tissues such as ligaments, tendons, muscles, and membranes around the shoulder joint, and the wings along with the wings. TECHNICAL FIELD The present invention relates to a device for stably obtaining the lower meat, and particularly to a breast meat separating method and its device that automatically copes with the size of the upper half of a carcass of chicken that can be deboned with high yield by flexibly dealing with the size of the beetle. .

[0002]

2. Description of the Related Art Recently, large-scale breeding, slaughter, and carcass processing of edible birds and beasts have become large-scale and various automations have been performed. Recently, the thigh meat from the carcass of edible birds and animals has been manually separated, and for the deboning of the separated thigh meat, a suitable deboning method and deboning device have been previously proposed by the present inventors. .

[0003]

By the way, although the breast meat from the Kabuto, which is the upper half of the body, after the thigh meat of chicken for meat has been cut off has been conventionally performed manually,
There is a problem that the breast meat that remains between the separated breast meat and clavicle is easily scratched during the above-mentioned stripping work, which reduces the commercial value. Further, it is necessary for the worker to directly touch the meat with his / her fingers, which causes a problem that the management cost in terms of yield and food hygiene becomes high.

When observing the breast meat 10a, as shown in the perspective views of FIGS. 5 and 6, there is an ideal cut surface 35 (streak) around the shoulder joint 11, and the muscles of the fillet 10b are shoulder joints. 11 connected to the humerus that is connected to the scapula joint fossa 11b, while the breast fillet 10a is through the pectoral muscle,
The wings 12 are also connected to the shoulder joints 11 via the brachial muscles, and the breast fillets 10a are formed between the scapula 11a, the upper part of the vertebra 13 and the clavicle 14. Also, the shoulder joint 1
As shown in FIG. 6, 1 is formed by a ligament, a tendon, a muscle, a joint membrane and the like between the scapula 11a having the clavicle 14 and the foramen 13 and the humeral head (not shown) fitted to the joint fossa 11b. Has been converted.

Therefore, in the case of breast separation, the shoulder joint 11 is used.
The cutting of tendons, ligaments, muscles, and joint membranes that connect the scapula 11a and the humeral head 12a in (in the following, referred to as "scoring the shoulder joint") is performed on the premise. Yield is greatly affected,
That is, if the incision location and the depth are appropriate regardless of the size of the beetle, a good yield can be obtained. For that purpose, it is necessary to flexibly correspond to the size of the beetle and to appropriately set the insertion position of the cutter as the incision point and the incision depth.

[0006] The following conclusions were obtained as a result of detailed examination of the relationship between the position of the tendon, which is a living tissue to be incised, and the size of the horseshoe from the skeleton formation diagram. 1, that is, FIGS. 7 (A), (B), and (C), a chest side front view, a side view, and a rear view of the skeleton formation of Kabuto are shown in FIGS. 8 (A) and 8 (B). 7 (B) and 7 (C) show enlarged views of the circles D and E of the shoulder joint region, respectively. 8A and 8B, the following matters are recognized. That is, a, the scapular head 11c and the humeral head 12a are two sets of tendons (a)
Are connected by the tendon (b). b. As shown in the rear view of FIG. 1B, the tendon (a) is located outside the tendon (b), and the tendon (a) is extended obliquely outward from the scapular head 11c to the humeral head 12a. Also, the tendon (b) extends in a vertical direction substantially below the scapular head 11c with respect to the humeral head 12a. 2. Next, when considering the insertion position of the creasing cutter, as shown in FIG. 3, the vertical reference plane Ya is set to the scapular head 11
If the horizontal reference plane Xa is set on the inside of c and the horizontal reference plane Xa is set on the upper surface of the scapular head 11c, the insertion position of the skew insertion diagonal cutter 16 is at a distance Sa from the vertical reference plane Ya, and the horizontal reference plane Xa. It is at a distance of more Ha. By the way, these Sa,
The Ha value has a variation of 2 with respect to the variation of the beetle size.
The value is about 3 mm, which is almost negligible. Therefore, the position of the vertical reference plane Ya may be appropriately changed with respect to the size of the helmet which is the work, while the insertion position of the oblique cutter 16 may be set to a fixed position with respect to the vertical reference plane Ya changed each time. For example, the insertion position of the oblique cutter 16 can be set at a substantially proper position, but it has been understood that the problem lies in the method of setting the vertical reference plane with respect to variations in the size of the work. In addition, the a
As described in the section, cutting of the biological tissue of the shoulder joint may be performed on two sets of tendon (a) and tendon (b), and as described in the section b, the cutting of the tendon (a) is performed from the lateral oblique direction. It was understood that the incision was valid, and the incision in the tendon was a horizontal incision. 3. As shown in FIG. 8 (B), the insertion depth of the scoring cutter is such that when cutting the tendon (b), the cutting direction is horizontal, especially at the end of the cutting, and the cutting edge is the scapular head 12c. It was found that even if a cut was made until it touched the lower part, it did not damage the meat. That is, it was understood from the above description that the insertion direction should be divided into two stages and the final stage should be in the horizontal direction together with the above-mentioned items a and b.

As a result of the analysis of the biological composition of the beetle, which is the upper half of the carcass of chicken, the present invention uses the variation of the size of the beetle, which causes the decrease in the yield when separating the beetle's breast meat, and is suitable for creasing The purpose of the present invention is to properly regulate the insertion position and insertion depth of the cutter, make it possible to make a creasing with a good yield, and automatically cope with the variation of the size of the helmet as a work. Therefore, an object of the invention as set forth in claim 1 is to insert and press a correspondingly-sized guide bar between the shoulder joints to regulate the position of the shoulder joints in the lateral and height directions, and to insert the creasing cutter. The purpose of the present invention is to provide a method for separating breast meat that inserts into the appropriate position, cuts the living tissue of the shoulder joint, and automatically copes with the size of the upper half of the chicken carcass with high yield.

A second object of the present invention is to provide a plurality of guide bars of different sizes prepared by dividing a beetle into different sizes, and a diagonal cutter for cutting two sets of tendons of a shoulder joint. Another object of the present invention is to provide a breast separation device which is provided with a horizontal cutter and a horizontal cutter insertion interval increasing separator and which automatically copes with the size of the upper half of a carcass of high yield.

Further, in addition to the object of the invention as set forth in claim 2, the invention as set forth in claim 3 automatically copes with the size of the upper half of the chicken carcass in which the position regulating means in the height direction is specified in the guide bar. The purpose is to provide a breast separation device.

In addition to the object of the invention as set forth in claim 2, the invention as set forth in claim 4 automatically copes with the size of the upper half of the poultry carcass for which the member for controlling the insertion position of the oblique cutter has been specified. The purpose is to provide a breast separation device.

According to a fifth aspect of the present invention, in addition to the object of the second aspect of the invention, the breast meat separation that automatically copes with the size of the upper half of the poultry carcass which specifies the horizontal insertion restricting means of the horizontal cutter. The purpose is to provide a device.

[0012]

The invention according to claim 1 is
A chicken carcass upper body, a breast tissue separation method of cutting living tissue around a joint mainly composed of two sets of tendons between a scapula and a humeral head, and peeling the breast meat together with the wing, wherein the carcass Insert a guide bar of appropriate size corresponding to the size of the upper body between the shoulder joints to set the vertical reference plane inside the joints that regulate the lateral position of the insertion position of the cutter for tendon cutting. In addition, by setting a horizontal reference plane that regulates the position of the insertion position in the height direction, with respect to the cutter insertion position where the above position is regulated, a diagonal cutter that is prepared to be inserted obliquely from the outside of the two tendons Cut the entire outer part and part of the inner part to reduce the binding force, and insert a horizontal cutter between the humeral head and the joint with a wider space by pressing the separator to cut off the remaining inner tendon. It is characterized by .

Further, the invention according to claim 2 is such that the carcass upper body insertion cone for fixing the position of the shoulder joint, the separator fitted to the joint portion of the scapula and capable of pressing the humeral head, and two sets of tendons. A device for removing breast tissue from chicken carcass upper body with wings, which has a size corresponding to the size of the upper body of the carcass, and a shoulder. A plurality of guide bars that press and insert between the joints to set a vertical reference plane and a horizontal reference plane, and a plurality of guide bars attached to the guide bars and inserted at proper insertion positions so that all the outer and inner sides of the two tendons The feature is that it is configured by a diagonal cutter capable of partially cutting obliquely and a horizontal cutter horizontally cutting the remaining tendon.

Further, the invention according to claim 3 is characterized in that the guide bar according to claim 2 is provided with a stopper on the upper part thereof so that the position in the height direction can be regulated at the time of pressing and inserting. .

The invention according to claim 4 is characterized in that the skew cutter according to claim 2 is structured such that its position is regulated by a guide bar.

The invention according to claim 5 is characterized in that the horizontal cutter according to claim 2 is capable of moving horizontally along with the separator.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
This will be described together with the illustrated example. However, unless otherwise specified, the dimensions, shapes, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but are merely illustrative examples. Absent. Figure 1
FIG. 2 is a diagram showing a schematic configuration of a breast separation device that automatically corresponds to the size of the upper half of the chicken carcass used in the implementation of the method for separating the breast of the upper half of the carcass of the present invention. 2 is a perspective view showing a schematic configuration of the guide bar of FIG. FIG. 3 is a diagram showing a situation change of a cutter insertion position corresponding to a size of a helmet as a work, and FIG. 4 shows a situation in which two sets of tendons connecting a scapular head and a humeral head are cut by the device of FIG. In the figure, (A) shows the cutting of tendon (a), and (B) shows the cutting of tendon (b).

According to the breast meat separating method of the present invention, which automatically corresponds to the size of the upper half of the carcass, the insertion position of the cutter for creasing depends on the size of the work that is the beetle when the shoulder joint is crooked. And the insertion depth is fluctuated, and the yield is greatly influenced by the quality of this creasing. That is, if the incision location and the depth thereof can be appropriately set regardless of the size of the work, a good yield can be obtained. Therefore, the present invention flexibly corresponds to the size of the beetle, which is a work, so that the insertion position and the incision depth of the cutter, which is the incision point, can always be set appropriately. That is, as shown in FIG. 3, when setting the insertion position of the skew cutter 16 for creasing, if the vertical reference plane Ya is set inside the shoulder joint and the horizontal reference plane Xa is set on the upper surface of the shoulder joint, The insertion position is set at a position Sa outside the vertical reference plane Ya and at a position Ha below the horizontal reference plane Xa. By the way, Sa and Ha depend on the variation of the size of the scapular head 11c, and the variation of the values is within 2 to 3 mm, and the influence of the variation of the size of the beetle is small.

Therefore, according to the present invention, as shown in FIG. 1, in order to minimize the influence of the size of a work which is a helmet when setting the reference plane, particularly the vertical reference plane Ya, the size of the work is respectively reduced. A plurality of guide bars 21 having an appropriate size S are prepared. As described above, the guide bar 21 has a size S
The stoppers 21b, 21b provided on the upper surface of the tip end portion of the guide bar 21 while corresponding to the size of the work by
Thus, the position is regulated in the height direction at the time of inserting and pressing. Therefore, the guide bar 21 having a size S corresponding to the size of the work is used, and the vertical reference plane Ya is set by inserting and pressing the guide bar 21 into the shoulder joint of the work and appropriately expanding in the arrow direction. The horizontal reference plane Xa can be set by the stopper 21b. The guide bar 21 having the above-described structure does not include the skew cutter 16 (not shown).
The diagonal sliding mechanism is provided so that the blade edge of the oblique cutter 16 is always at the positions Sa and Ha from both the vertical and horizontal reference planes, and the proper position of the insertion position of the oblique cutter 16 is set. It was made possible.

Next, to cut the tendon connecting the scapular head 11c and the humeral head 12a, as shown in FIG.
23 extends obliquely outward from the scapular head 11c with respect to the humeral head 12a, and the tendon (b) 24 extends substantially vertically downward inside the tendon (a) 23. As for the cutting, the diagonal cutter 16 and the horizontal cutter 17 are used separately for two stages. That is, as shown in FIGS. 4 (A) and 4 (B), the oblique cutter 16 cuts all of the tendons (a) 23 and only a part (2/3) of the tendons (b) 24 in the first stage. Then, the humeral head 12a of the shoulder joint, which has a weak bonding force, is pushed down in the downward Yb direction by the separator 15, and a horizontal cutter 17 that makes a sliding cut horizontally along the separator 15
The remaining part of the tendon (b) was cut horizontally to perform the second stage cutting. Since the horizontal cutting is adopted for the cutting in the second stage, the cutting edge of the cutter comes into contact with the bone portion and stops cutting before damaging the meat portion 25 in the vicinity. Thus, according to the breast meat separating method of the present invention, it is possible to automatically respond to the change in the size of the work and perform the crease of the shoulder joint without damaging the meat portion, and then the wing At the same time, the peeling-off mechanism for peeling the breast meat allows the breast meat to be separated at a high yield.

FIG. 1 is a breast separation device for automatically responding to the size of the upper body of a poultry carcass used in carrying out the method for separating the breast meat of the upper body of a carcass of the present invention. It is a figure which shows the schematic structure of. The breast separation device includes an insertion cone 20 for fixing the beetle 10, a plurality of guide bars 21 having different sizes, and a slanting cutter 16.
, A separator 15, a horizontal cutter 17, and a peeling mechanism (not shown). Guide bar 21
2 includes a plurality of U-shaped round bar members 21a having various openings S at their tip portions, and stoppers 21b are provided on the upper surfaces of the tip portions of the respective round bar members. Note that the guide bar 21 is not limited to the U-shape, and a V-shape, a U-shape, and the like are conceivable. Further, it is not limited to a round bar, and a square bar, a flat plate, or a channel material may be used. Also, the open S width can be set arbitrarily. It should be noted that each of the guide bars 21 is provided with a slidable sliding mechanism for the slanting cutter 16, and the slanting cutter 16 is newly installed by pressing the guide bar 21 regardless of which guide bar is used. The vertical reference plane Ya and the horizontal reference plane Xa are set so that they can be cut into proper insertion positions at distances Sa and Ha, respectively.

As shown in FIGS. 1 and 4 (B), the separator 15 is a horizontal plate-like member having a notch at the tip for fitting with the scapular head 11c, and the separator is the most recessed portion. The humeral head 12a, whose coupling force has been reduced by the one-step cutting, can be pushed down in the direction of the downward arrow Yb. The horizontal cutter 17 is configured to be horizontally slidable along the separator 15 in the arrow Xb direction.

Note that the peeling-off mechanism, after finishing the incision of the shoulder joint region, together with the wing 12, the breast meat 10a.
Is configured to be capable of being moved downward by manual or mechanical force.

[0024]

EFFECTS OF THE INVENTION With the above-mentioned structure, the breast meat can be automatically peeled off easily without damage to the meat portion of the chicken beetle for meat, regardless of the size of the beetle, and the yield can be improved.

[Brief description of drawings]

FIG. 1 is a schematic view of a breast meat separating apparatus for automatically responding to the size of a chicken carcass upper body, which is used for carrying out a breast meat separating method for automatically dealing with the size of a chicken carcass upper body of the present invention. It is a figure which shows a structure.

FIG. 2 is a perspective view showing a schematic configuration of a guide bar of FIG.

FIG. 3 is a diagram showing a positional relationship of cutter insertion positions corresponding to the size of a helmet in FIG. 1;

FIG. 4 is a diagram showing a situation in which two sets of tendons that connect the scapular head and the humeral head are cut by the device of FIG. 1, and FIG. 4A shows cutting of tendon (a); B) shows the cutting of the tendon (b).

FIG. 5 is a perspective view of a beetle of chicken.

6 is a perspective view showing a state of the skeleton after the breast meat including the wings is peeled off from the beetle of FIG.

FIG. 7 is a diagram showing the skeleton formation of a beetle, (A) shows a chest side front view of the skeleton formation, (B) also shows a side view,
Similarly, (C) shows a rear view.

8 is a partially enlarged view of (B) and (C) of FIG.
7B is an enlarged side view of a circle D of the shoulder joint portion shown in FIG. 7B, and FIG. 7B is an enlarged rear view of a circle E of the shoulder joint portion shown in FIG. 7C.

[Explanation of symbols]

10 Kabuto 10a breast 11 shoulder joint 11a scapula 11b Glenoid of the scapula 11c scapular head 12a Humeral head 12b Humerus 13 bird mouth bones 14 Clavicle 15 separator 16 skew cutter 17 Horizontal cutter 20 insertion cones 21 Guide bar 21a U-shaped round bar member 21b Stopper 23 tendon 24 Tendon (B) 25 meat 35 Ideal cut surface

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroaki Nomura 2-13-1 Botan, Koto-ku, Tokyo Stock company Maekawa Manufacturing (72) Inventor Yoshimitsu Fujiwara 2-3-1 Botan, Koto-ku, Tokyo Stock company Maekawa Seisakusho (56) Reference JP-A-6-7074 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A22C 21/00

Claims (5)

(57) [Claims] 1. A method for separating breast meat, which comprises cutting living tissue around a joint mainly composed of two pairs of tendons between a scapula and a humeral head of a carcass upper body and peeling the breast meat together with the wings. Then, a guide bar of an appropriate size corresponding to the size of the upper body of the carcass is pressed and inserted between the shoulder joints, and the guide bar is inserted inside the joint for lateral position regulation of the insertion position of the cutter for tendon cutting. In addition to setting the vertical reference plane, set the horizontal reference plane that regulates the position of the insertion position in the height direction, and with respect to the above-regulated cutter insertion position, use the oblique cutter that is prepared to be inserted obliquely from the outside. Cut the entire outer part and part of the inner part of the two sets of tendons to reduce the binding force, and insert a horizontal cutter between the humeral head and the joint with a wider space by pressing the separator to insert the remaining inner part. Characterized by cutting the tendon Breast meat separation method. 2. A carcass upper body insertion cone for fixing the position of the shoulder joint, a separator fitted to the joint part of the scapula and capable of pressing the humeral head, and for cutting biological tissue mainly composed of two tendons. A device for peeling chicken breasts with chicken wings from the upper body of a carcass, consisting of a cutter and a peeling mechanism, and having a size corresponding to the size of the upper body of the carcass, and pressing and inserting it between the shoulder joints. A plurality of guide bars for setting a vertical reference plane and a horizontal reference plane, and a guide bar attached to the guide bars to be inserted at an appropriate insertion position to allow diagonal cutting of all of the two tendons on the outside and a part of the inside. A breast separation device comprising a diagonal cutter and a horizontal cutter that horizontally cuts the remaining tendon. 3. The guide bar is provided with a stopper on an upper portion thereof, and a horizontal reference plane can be set when the guide bar is inserted by pressing.
The breast separation device according to claim 2. 4. The breast meat separating apparatus according to claim 2, wherein the skew cutter is positionally controlled by a guide bar. 5. The breast separator according to claim 2, wherein the horizontal cutter is capable of moving horizontally along with the separator.