JP4169156B2 - Poultry carcass creasing device - Google Patents

Description

The present invention relates to a poultry carcass creasing device.

A pressing member that abuts on the abdomen directed upwards of the poultry carcass that is suspended by the shackle and presses the abdomen downward, and a toothed chain conveyor that supports the back of the poultry carcass from below And a poultry carcass creasing device provided above the boundary between the abdomen of the poultry carcass and the inside of the thigh, and a knife with a lower end formed with a blade inclined forward and downward. 1 is disclosed.
In the device of Patent Document 1, the border between the abdomen of the poultry carcass and the inner side of the thigh is smoothly torn in a cut state by a knife.
JP-A-10-150912

The peritoneum is present directly under the epidermis at the boundary between the abdomen of the paw carcass and the inside of the thigh. Since the fusion between the peritoneum and the meat is bad, when a shearing force is applied to the peritoneum, the peritoneum easily moves relative to the meat and becomes wrinkled. In the device of Patent Document 1, when the boundary portion is torn in a state of being cut with a knife, the peritoneum is cut by the knife blade while receiving a shearing force from the knife and escaping backward to escape. There is a possibility that the peritoneum at the rear end portion of the boundary portion may remain without being torn, and there is a possibility that the separation of the thigh following the insertion of the boundary portion may be hindered.
The present invention has been made in view of the above problems, and provides a poultry carcass creasing device that can completely tear the peritoneum present at the boundary between the abdomen of the poultry carcass and the inside of the thigh. With the goal.

In order to solve the above-mentioned problems, in the present invention, a toothed chain conveyor that supports the back part of a poultry carcass that is suspended by a shackle and advances from below, and directed to the upper side of the poultry carcass A guide member disposed above the boundary between the abdomen and the inner side of the thigh and having a lower end inclined forward and downward, and a guide member attached to the guide member and protruding downward from the lower end of the guide member A first knife and a second knife, the first knife being disposed rearward of the second knife, the cutting edge and the blade of the first knife being directed rearward; The lower end where the blade is formed is inclined forward and downward, and when the front end of the boundary part of the poultry carcass passes directly under the first knife, the cutting edge of the first knife is brought into contact with the boundary part. 1st knife and 2nd knife whose front end of said boundary part is a guide member lower end When the poultry carcass rotates around the front end of the boundary portion by receiving a pulling force from the shackle, the cutting edge of the first knife is near the rear end of the boundary portion. When the poultry carcass advances, the first knife pushes and cuts the portion from the rear end vicinity to the rear end of the boundary portion, and the second knife extends from the front end of the boundary portion to the rear end vicinity portion. This invention provides a poultry carcass creasing device characterized by cutting and tearing a portion of this.

In the present invention, the boundary portion between the abdomen and the inner side of the thigh directed upward of the poultry carcass is pressed against the lower end of the guide member, and the boundary portion is cut by the first knife and the second knife.
Along with the advancement of the poultry carcass, the front end of the boundary portion passes directly under the first knife without coming into contact with the cutting edge of the first knife. Since the lower end of the guide member is inclined forward and downward, the front end of the boundary portion first hits a portion extending between the first knife and the second knife at the lower end of the guide member as the poultry carcass advances. Touch.
When the poultry carcass further moves, the poultry carcass pulled by the shackle rotates around the contact portion, and the rear end of the boundary portion is behind the first knife at the lower end of the guide member. Approach and abut the part. As a result, the cutting edge of the first knife breaks through the vicinity of the rear end of the peritoneum existing in the boundary portion and bites into the boundary portion. As the poultry carcass further moves, the peritoneum is pushed through by the blade of the first knife directed rearward. Since the cutting edge of the first knife is directed backward, the peritoneum is caught by the cutting edge of the first knife and cannot escape from the blade of the first knife. As a result, the site from the vicinity of the rear end of the peritoneum to the rear end existing at the boundary is completely torn.
The part from the front end of the peritoneum existing in the boundary part to the vicinity of the rear end, and the muscle tissue and tendon existing in the boundary part are cut and torn by the second knife.
By the first knife and the second knife, the peritoneum, the muscular tissue, and the tendon existing at the boundary between the abdomen and the inner side of the thigh of the poultry carcass are completely torn.

In a preferred embodiment of the present invention, the cutting edge of the first knife is bent or curved backward.
If the cutting edge of the first knife is bent or curved backward, the peritoneum is the first when the site from the vicinity of the rear end of the peritoneum to the rear end existing at the boundary portion is torn by the first knife. The knife is securely caught by the cutting edge of the knife and is surely pushed by the first knife.

In the poultry carcass creasing device according to the present invention, the first knife and the second knife completely remove the peritoneum, the muscular tissue, and the tendon that exist at the boundary between the abdomen and the inner thigh of the poultry carcass. Torn.

A poultry carcass creasing device according to an embodiment of the present invention will be described.

A poultry carcass creasing device according to a first embodiment of the present invention will be described.
As shown in FIG. 1, the poultry carcass creasing device is directed upward, supporting the back C1 of the poultry carcass C suspended from the shackle S and advanced in the direction of the white arrow from below. A pair of left and right toothed chain conveyors 1 having protruding blades or stabs, and a boundary portion C4 (hereinafter referred to as an inner crotch root portion C4) between the abdomen C2 and the inner side of the thigh C3 that are directed upward of the poultry carcass C A pair of left and right guide members 2 that can be brought into contact with the inner crotch root C4, and attached to the guide member 2 and downward from the lower end 2a of the guide member 2. A left and right pair of first knives 3 and second knives 4 are provided.
The first knife 3 is disposed behind the second knife 4. The cutting edge 3a of the first knife 3 is directed backward and downward, and the blade 3b of the first knife 3 is directed backward.
The lower end 4a on which the blade of the second knife 4 is formed is inclined forward and downward.
A pair of left and right guide bars 5 are disposed on the sides of the pair of left and right toothed chain conveyors 1.

The operation of the poultry carcass creasing device according to the present embodiment will be described with reference to FIG.
As shown in FIG. 2 (a), the poultry carcass C, which is hung by the left and right legs by the shackle S, is directed downward with the inner crotch root C4 pointing upward. In the state where the back portion C1 is supported by the pair of left and right guide bars 5 and the toothed chain conveyor 1, the guide member 2 is approached. The poultry carcass C advances in the direction of the white arrow along the guide member 2 while the inner sides of the left and right thighs C3 are brought into contact with the outer surfaces of the pair of left and right guide members 2. When the front end of the inner crotch root C4 passes directly below the first knife 3, the cut edge 3a of the first knife 3 is above the inner crotch root C4 and does not contact the inner crotch root C4.

Since the lower end 2a of the guide member 2 is inclined forward and downward, as shown in FIG. 2 (b), the front end of the inner crotch root portion C4 is connected to the lower end of the guide member lower end 2a. First, the portion extending between the first knife 3 and the second knife 4 abuts.

When the poultry carcass C further advances, the poultry carcass C with the left and right legs pulled by the shackle S has an inner crotch root C4 that abuts against the lower end 2a of the guide member, as shown in FIG. Rotating in the clockwise direction indicated by the double arrow with the front end as the center, the rear end of the inner crotch root portion C4 approaches a portion of the guide member lower end 2a behind the first knife 3. As a result, the cutting edge 3a of the first knife 3 pierces the vicinity of the rear end of the inner crotch root C4, breaks through the peritoneum directly under the epidermis and bites into the inner crotch root C4.

When the poultry carcass C further advances, as shown in FIG. 2 (d), the inner crotch root C4 is pressed against the lower end 2a of the guide member while the inner crotch root 3b is directed backward by the blade 3b of the first knife. The peritoneum existing in the part C4 is pushed out. Since the cutting edge 3a of the first knife is directed rearward, the peritoneum of the inner crotch root C4 is caught by the cutting edge 3a of the first knife and cannot escape from the blade 3b of the first knife. As a result, the portion from the vicinity of the rear end of the peritoneum to the rear end existing in the inner crotch root C4 is completely torn by the first knife 3.

As can be seen from FIG. 2 (e), the site from the front end to the vicinity of the rear end of the peritoneum existing at the inner crotch root C4, and the muscle tissue and tendon are the same as in the case of the prior art. As the edible carcass C further advances while being pressed against the lower end 2a of the guide member, it is cut and cut by the second knife 4.
The toothed chain conveyor 1 also makes a cut at the boundary between the back C1 and the thigh C3 of the poultry carcass C.

As can be seen from the above description, the first knife 3 pushes and cuts the region from the vicinity of the rear end of the peritoneum existing in the inner crotch root C4 to the rear end that could not be completely cut with the second knife 4. Since the part from the front end of the peritoneum existing in the inner crotch root C4 to the vicinity of the rear end, the muscular tissue and the tendon are cut by the second knife 4 and cut as usual, the present embodiment The poultry carcass creasing device according to the above can completely cut the peritoneum, the muscular tissue, and the tendon present in the inner crotch root C4 of the poultry carcass C from the front end to the rear end.

The cutting edge 3a of the first knife may be bent or curved backward.
If the cutting edge 3a of the first knife is bent or curved backward, the peritoneum is cut when the first knife 3 cuts a portion from the vicinity of the rear end of the peritoneum to the rear end existing in the inner crotch boundary C4. Is securely caught by the cutting edge 3 a of the first knife and is surely pushed by the first knife 3.

The present invention can be widely used for creasing of poultry carcasses.

1 is a structural diagram of a poultry carcass creasing device according to an embodiment of the present invention. (A) is a front view, (b) is a side view. It is a side view of an apparatus showing the operation of the poultry carcass creasing device according to the embodiment of the present invention.

Explanation of symbols

S Shackle C Feeding carcass C1 Back C2 Abdomen C3 Thigh C4 Boundary between the abdomen and the inside of the thigh 1 Chain conveyor 2 with teeth Guide member 3 First knife 4 Second knife 5 Guide bar

Claims (2)

A toothed chain conveyor that supports the back part of the poultry carcass that is suspended by the shackle and moves from below, and an upper part of the border between the abdomen and the inside of the thigh that is directed upward of the poultry carcass. A guide member that has a lower end inclined forward and downward and can contact the boundary portion; a first knife and a second knife that are attached to the guide member and project downward from the lower end of the guide member; The knife is arranged behind the second knife, the cutting edge and the blade of the first knife are directed backward, and the lower end on which the blade of the second knife is formed is inclined forward and downward. When the front end of the boundary portion of the poultry carcass passes directly under the first knife, the cutting edge of the first knife does not contact the boundary portion, and the front end of the boundary portion is the first lower end of the guide member. From the shackle to the part extending between the 1st knife and the 2nd knife When the poultry carcass rotates around the front end of the boundary under the pulling force, the cutting edge of the first knife pierces the vicinity of the rear end of the boundary, and when the poultry carcass advances, the first knife The portion from the vicinity of the rear end of the boundary portion to the rear end is cut and cut, and the second knife cuts and cuts the portion from the front end of the boundary portion to the vicinity of the rear end. Bird carcass creasing device. The apparatus of claim 1, wherein the cutting edge of the first knife is bent or curved backward.

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