SUBSOIL TILLAGE WORKING TOOL Russian patent published in 1996 - IPC

FIELD: agricultural engineering. SUBSTANCE: subsoil tillage working tool has right-hand and left-hand shanks whose lower ends are fixed in slots of wedges 3 installed on flat hoe 4. Wedge 3 is made of round section rod, diameter 50 mm minimum. Conical mole 5 is hinge-mounted behind wedge 3. Flat vertical knife 6 is connected to rear concave portion of wedge 3 before mole 5. Lower end of knife 6 is fixed in slot drilled on concave portion of wedge 3. Distanced between neighboring wedges are equal. Longitudinal axis of each wedge is square to plane of flat hoe 4, all wedges being secured on flat hoe by their middle portions. EFFECT: enhanced quality of tillage. 3 dwg