KNIFE, IN PARTICULAR, FOR FRAME OF KNIFE (KNIVES) HOLDER Russian patent published in 2001 - IPC

FIELD: agricultural engineering. SUBSTANCE: knife has at least one body attached to frame. Knife body has working part with at least one portion laterally inclined relative to vertical plane extending in parallel with axis of advancement of tractor so as to define angle α within the range of 5-20 deg, preferably about 9 deg, with respect to vertical plane. This inclined portion is laterally extended relative to lower edge of shoe or is arranged adjacent to this edge, with positive angle of incidence with respect to ground surface. Shoe is equipped with at least one rapidly wearing part having at least one sharpened rod. The latter is laterally offset relative to front blade serving cutting edge of knife body inclined part so as to provide for lifting of soil strip, with resultant equivalent force extending in vertical plane. Knife of such construction is designed for knife holder frame adapted to be attached to tractor. EFFECT: simplified construction, manufacture and maintenance, and improved quality of tilled soil. 9 cl, 5 dwg