TILLAGE TOOL Russian patent published in 2008 - IPC A01B35/20 A01B13/08 

FIELD: agriculture.

SUBSTANCE: tillage tool consists of the vertical holder, a curvilinear working surface with a curvilinear chopping off edge and a reversive chisel. The chopping off edge is executed in the form of a curve tractrix section (an antifrictional curve), defined under the formula: X = a cos α + a In tg α/2, Y = a sin α, where: a - the depth of a soil cultivation equal to 400-500 mm; α - the angle of a tangent with the abscissa axis made to a curve tractrix, is within 21-91°; X, Y - axes parameters.

EFFECT: substantial increase of a soil cultivation quality at simultaneous decrease in traction resistance of the tool.

3 dwg