DEEP TILLAGE TOOL Russian patent published in 2002 - IPC

FIELD: agricultural engineering. SUBSTANCE: tillage tool has two-tine carcass. Tines have cutting edges connected at their lower parts through composite share. Share has flat knife inclined to direction of advancement of tillage tool and four-sided wedge oriented with its convex part to tillage tool space. Four-sided wedge is inclined in longitudinal plane in advancement direction so that its apex is disposed axially of knife and offset in advancement direction relative to its cutting edge. Symmetrically arranged wedge side surfaces joined with bases of inclined tines have common contact lines C-C over the entire width of these tines. Wedge lower faces are disposed on knife cutting surfaces and converge at wedge apex. Upper triangular wedge part is inclined at an angle of 12-15 deg to knife cutting edge. Four-sided wedge is positioned on knife so that they define share construction. Deep tillage tool is used for cultivating compressed soils without turning of soil layers. EFFECT: improved quality of soil tillage at large depth, effective soil surface leveling and reduced power consumption. 2 cl, 3 dwg