# US 12,757,906 B2 · Device for clamping bone-in meat

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- Number: US 12,757,906 B2
- Document ID: US12757906B2
- Status: Granted
- Kind: B2
- Application number: 19/113,317
- Filed: 2023-09-21
- Published: 2026-04-09
- Granted: 2026-10-13
- Earliest claimed: 2022-09-21
- Assignees: Mayekawa Mfg. Co., Ltd.
- Applicants: Mayekawa Mfg. Co., Ltd.
- Inventors: Seiichiro Umeda; Takeshi Chimura; Ryuji Kodama; Kenichi Oka
- Web page: https://patentgrep.com/patent/US12757906B2

## CPC

- A22C 17/02: Apparatus for holding meat or bones while cutting {(holding fish A22C25/06; holding meat for carving A47J43/18)}
- A22C 21/0046: {Support devices}
- A22C 21/0076: {Deboning poultry legs and drumsticks}
- A22B 5/0035: {Deboning or obtaining boneless pieces of meat from a carcass (devices for deboning meat A22C17/004)}
- A22C 17/004: {Devices for deboning meat (deboning poultry A22C21/0069; deboning operations on carcasses A22B5/0035)}
- A22C 21/0069: {Deboning poultry or parts of poultry}
- A22C: PROCESSING MEAT, POULTRY, OR FISH (preserving A23B; obtaining protein compositions for foodstuffs A23J1/00; fish, meat or poultry preparations A23L; disintegrating, e.g. chopping meat, B02C18/00; preparation of proteins C07K1/00)
- A22B: SLAUGHTERING

## Abstract

A device for clamping bone-in meat includes a plurality of gripping blocks, and a displacement restricting part. The gripping blocks have grip parts that can abut an outer circumferential surface around a bone section of bone-in meat, and that are provided to be displaceable in a direction in which the grip parts approach and separate from each other. The displacement restricting part restricts displacement of the plurality of gripping blocks, which are gripping the bone-in meat, in a separating direction.

## Claims

### Claim 1

A device for clamping bone-in meat comprising:
a pair of gripping blocks each including:
a substantially rectangular plate, wherein
an inner side edge portion of the substantially rectangular plate of one of the pair of gripping blocks faces an inner side edge portion of the substantially rectangular plate of the other of the pair of gripping blocks,
the inner side edge portions each having a concave portion that abuts an outer circumferential surface around a bone section of the bone-in meat,
the concave portions move in a direction in which the concave portions approach and separate from each other, and
the substantially rectangular plates clamp the outer circumferential surface of the bone-in meat in a substantially horizontal posture;
a plate-like arm extending upward from the substantially rectangular plates, wherein one or more of the plate-like arms pivot about a pivoting axis such that the concave portions approach and separate from each other; and
a guide protrusion disposed on each of the plate-like arms and extending parallel to the pivoting axis; and
a displacement restricting block having a substantially U-shaped displacement restricting groove that opens downward, wherein
the displacement restricting block moves upward and downward relative to the guide protrusions,
the substantially U-shaped displacement restricting groove has an inner surface that abuts outer circumferential surfaces of the guide protrusions,
a groove width of the substantially U-shaped displacement restricting groove narrows from a lower end of the substantially U-shaped displacement restricting groove toward an upper side of the substantially U-shaped displacement restricting groove, and
when the inner surface of the substantially U-shaped displacement restricting groove abuts the outer circumferential surfaces of the guide protrusions, the displacement restricting block restricts displacement of the pair of gripping blocks gripping the bone-in meat in a separating direction.

### Claim 2 (depends on 1)

The device according to claim 1, wherein each of the plate-like arms pivots about the pivoting axis.

### Claim 3 (depends on 1)

The device according to claim 1 further comprising a coil spring that applies a downward force to the displacement restricting block such that the upper side of the substantially U-shaped displacement restricting groove approaches the guide protrusions.

### Claim 4 (depends on 3)

The device according to claim 3, wherein concave portions each include:
a substantially arc-shaped wall surface that receives the outer circumferential surface of the bone-in meat; and
a tapered wall surface inclined toward a deepest portion of the concave portion.