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AssigneeSlagteriernes Forskningsinstitut
InventorsCarsten Jensen, Jesper Mejslov, Arne Druekaer, Helge Moeller
Estimating the term…
In the removal of internal bones in a fore-end of a split carcass the shank bone, the humerus bone and the shoulder blade are cut free by machine, so that subsequently they can easily be removed from the rest of the fore-end. A transport tool (27a) is brought to grip around the free end of the shank bone. The fore-end is then pulled past cutting tools (1, 9, 15) by means of the transport tool, and the cutting tools (1, 9, 15) hereby perform cutting operations along the shank bone, the humerus bone and the shoulder blade guided by these bones, so that the bones are at least partially cut free from the rest of the fore-end. The articulations between the shank bone and the humerus bone, and the connections of the humerus bone to the shoulder blade are maintained at least partially unbroken during the cutting operations, so that the tractive force from the transport tool (27a) by the grip of the tool round the free end of the shank bone is transferred to the bones via their unbroken connections.
1-6. (canceled)
Apparatus for use in removal of internal bones in a fore-end of a split carcass, comprising:
Positioning device to place the free end of the shank of a fore-end in a transport tool (27a), comprising a conveyor belt (23) to convey the fore-end with the shank in front in the direction towards the transport tool (27a), a funnel device (24) to guide the free end of the shank to fit tightly against the narrowed part of the funnel, a gripper (26) to grip the shank when the free end is in the narrowed part of the funnel device, means to move the funnel device away from the fore-end when the gripper has gripped around the shank, and a transport device to move the gripper (26) with retained fore-end with the shank in front until the free end of the shank is placed in the transport tool (27a).
Transport device for conveying fore-ends with the shank in front with the fore-ends retained in each of their own transport tools further comprising a conveyor (27) with a continuous chain of transport tools (27a), each of which is provided with means to grip around and retain the free end of the shank of a fore-end that is supplied at the entrance end of the conveyor.
Extraction device for extraction of at least the shank bone and the humerus bone from a fore-end which is supplied supported on a transport plane, and in which fore-end the bones are at least partially cut free from, the rest of the fore-end, comprising a transport device (32), adapted to move at least the shank bone and the humerus bone in a direction upwards from the transport plane (3, 34) of the fore-end, and retaining devices (33) which are designed to keep the rest of the fore-end at the transport plane while at least the shank bone and the humerus bone are moved in a direction upwards from the transport plane, whereby at least the shank bone and the humerus bone are removed from the fore-end.
Knife tool, comprising a blade (40) and a motor to turn the blade around an axle (40a) that is at right angles to the plane of the blade, the blade, at a distance from the axle, having two cutting edges (40b) which meet in a point (40c), and one of said cutting edges located to an inward side of a circular arc that the point describes when the blade (40) is turned around the axle in a direction of the point, and the other cutting edge to the outward side of the circular arc, whereby the parts of the cutting edges have increasing distance from the circular arc in a direction backwards from the point (40c).
Dependencies are inferred from the claim text.