MOLDBOARD BODY OF SOIL-TILLING IMPLEMENT Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: sections of moldboard surface by the planes parallel to the plane of landward edge have the form of curves with a varying curvature radius which diminishes monotonously from share blade to upper edge of moldboard. Such curves may be exemplified by logarithmic and other spirals, and evolvents. Reduction of curvature radius results in wedging of soil moving toward moldboard, its compression and additional crumbling. Disclosed implement may be used for cultivation of overdry lands. EFFECT: intensified crumbling of soil improves its water-air conditions, contributes to development of plant roots and increases cropping power. 2 dwg