SLITTER WORKING TOOL Russian patent published in 1996 - IPC

FIELD: agricultural engineering. SUBSTANCE: slitter working tool has tine with cutter provided with concave-curved cutting edge. Tine has facets and channel made on both sides of cutter and covered with coating having wear-resistance exceeding that of material of tine. Rod-like chisel is fixed on lower part of tine. Tine is made corrugated, with longitudinal axis of each corrugation extending at an angle with respect to vertical plane, angle apex oriented upward and lower end shifted to side opposite to cutting edge of cutter. Tine upper part has pairs of straps positioned in symmetry and provided with openings for attachment on frame. Detachable blades with cutting edges are fixed at both sides of concave-curved part of tine. Blade cutting edges are extending along congruent lines of tine concave-curved cutting edge. Detachable blades are spaced one with respect to the other for a distance equal to channel width and are interconnected by their symmetrical sides. Detachable chisel positioning straps are fixed on tine lower part. Surfaces of blades and straps to be joined are provided with similar corrugated walls. Tine may be composed of two corrugated sides, with one side being spaced relative to the other side for a distance equal to 1/4- 1/2 the width of corrugation. Detachable blades, tine and chisel straps are attached on surface of tine by rivets. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 3 cl, 5 dwg