SUBSOIL TILLAGE TOOL Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: subsoil tillage tool has frame, wheels, attachment and working members. Each working member has transverse plate arranged between tines at an obtuse angle to advancement direction and provided with cutting edges at both sides. Wedge-shaped chisels projecting from plate are positioned thereon in equally spaced relation. Bases of chisels are equipped with detachable hard-alloy plates, which are fixed due to box-shaped configuration of pipes, pressing bolts and friction faceplates. Side walls of pipes are formed triangular and adapted for stirring soil and lifting of weed roots. EFFECT: enhanced reliability in operation and simplified construction. 5 dwg