COMBINED DISC PLOUGHSHARE OF GRAIN SEEDER Russian patent published in 2013 - IPC A01C7/20 

FIELD: agriculture.

SUBSTANCE: combined disc ploughshare of a grain seeder comprises a set of a knife in the form of a flat disc sharpened along the circumference and a seed-pressing element in the form of a cylindrical disc of smaller diameter both arranged on one axis of the knife. In the front part a seed and fertiliser funnel adjoins them, as well as a furrow-forming element in the form of a stand with a point fixed to a traction rod. The traction rod is installed as capable of rotation in the vertical plane relative to the seeder leash. A coverer is fixed to the rear part of the traction rod on a flexible suspension. A shield is installed on the side opposite to the flat disc. A scraper is installed on the traction rod beyond the flat disc. The seed-pressing disc is made of fluoroplastic.

EFFECT: invention will make it possible to improve contact of seeds with soil, more evenly distribute seeds in a row and creates favourable conditions for growth of seeds and their sprouting to day surface.

5 cl, 4 dwg