PLOUGHSHARE Russian patent published in 2016 - IPC A01B15/04 

FIELD: agriculture; engineering.

SUBSTANCE: invention relates to agricultural machine building, particularly to plowshares. Ploughshare frame is composed of trapezoidal strip and has a field and furrow edges, mounting holes, cutting part with blade installed at angle to the blade back and add-on bit. Front surface of the frame is made with variable and decreasing linearly curvature. Radius of curvature in cross-section perpendicular to the back and passing through the first fastening hole is larger than the radius of curvature at intersection of furrow edge and back by 3…3.2 times.

EFFECT: engineering solution increases penetration ability and resource of share, as well as reduced power consumption for plowing.

1 cl, 4 dwg