SHANK FOR SUBSURFACE BROADCAST SOWING Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular drilling equipment. SUBSTANCE: shank has A-hoe, tube-tine-seed guide, and passive seed distributor with concave surfaces. Seed distributor is made in the form of cone with profiled concave surface. Seed distributor is coupled with seed guide tine. Curvature of seed guide tube lower part conforms with profile of cone concave surface. Bottom fixed on seed guide is made in the form of profiled surface following profile of cone and arranged perpendicular to seed guide longitudinal axis. Bottom is positioned on seed guide so as to provide movement of seed guide without contacting with soil. Gap between tube wall and profiled concave surface of cone allows free discharge of seeds and fertilizer to be provided. EFFECT: uniform, high-quality distribution of seeds in soil. 2 cl, 3 dwg