Method and apparatus for deboning pieces of meat, for instance thighs and drumsticks of broilers

摘要

A method for deboning pieces of meat, for instance interconnected thighs and drumsticks of broilers, and an apparatus (2) with a stationary basic part form of a lying drum (4) with a number of uniform deboning aggregates (10) are described, which are distributed along the circumference of the apparatus (2), and said deboning aggregates being rotated around the drum (4), as the surface of the drum is provided with steering recesses (14) for activation of the deboning aggregates (10), where opposite stripped bone ends of interconnected thighs and drumsticks at the same time are placed between mutually displacably arranged pair of holding jaws (18) in such a manner, that the holding jaws (18) grasp around opposite bone ends. Thereafter the holding jaws (18) are displaced towards each other and scrape off the meat and are squeezed around the meat scraped off as displacable tube means (24, 30) being placed outside the holding jaws (18) and on level with the bone ends are displaced inwardly towards each other and lead around and fixing the stripped bones. When the holding jaws (18) are squeezed around the meat scraped off, the holding jaws (18) are opened sufficiently that outer end part of the respective tube means (24, 30) from each side may be pressed against the outside of the squeezed meat, so that an internal tubular knife (34) from a position in the tube means (30) may be moved through the meat and cuts free the meat from the knee joint. Finally the bones cut free, for instance by means of compressed air, are blown out through the tube means (24) opposite said tubular knife (34) before holding jaws (18) and tube means (24, 30) again are lead away from each other for disengagement of the deboned meat, for instance by means of suitable scraper means.