DEEP TILLAGE TOOL Russian patent published in 2002 - IPC

FIELD: agricultural engineering. SUBSTANCE: tillage tool has two-tine carcass and share. Tines are interconnected at their lower parts through share. Share has two cylindrical wedges inclined in longitudinal plane. Wedges are connected with their one side to central flat wedge and with their other side to inclined side cutters. Cylindrical wedges have variable cutting angle. Parallel cutting edges of cylindrical wedges extending perpendicular to direction of advancement of tillage tool are axially offset rearward of flat wedge cutting edge. Convex surfaces of cylindrical wedges are oriented into space between tillage tool tines. Tillage tool of such construction are preferably used for deep tillage of heavy and compressed soils without turning of soil layer. EFFECT: increased efficiency, provision for deep tillage, complete mellowing of soil and reduced power consumption. 3 dwg