Discharge device for seed drills of sowing machine used in agriculture

摘要

The device has plastic star-shaped ejectors (9) spaced apart by the same axial distance on a common shaft (3) across the direction of travel (2). The ejectors have outward protruding fingers (12) fitting into the space between adjacent sowing shares (23,24) so that the front and back row of sowing shares are combed free of accumulated mulch material. The fingers are curved backwards contrary to the ejectors' rotary direction (13). The foremost breast of each finger is convexly curved with curvature line at an acute angle to a tangent to the periphery and runs tangentially into the diameter of the hub of the ejector.