Knife for food shredder-mixer - has blades pivoted to hub and returned to vertical position when at rest by springs

摘要

The knife for a shredder-mixer has blades (12) driven by a shaft (2) co-axial with the inner bowl (4). The angle of the blades relative to the drive shaft can be varied through 90 deg. according to the speed of rotation. The blades are mounted to move in the vertical plane, with a return frame provided by a torsion spring. The mounting is to the central hub.