PNEUMATIC VACUUM SEED DISTRIBUTOR Russian patent published in 2009 - IPC A01C7/04 

FIELD: agriculture.

SUBSTANCE: pneumatic vacuum seed distributor comprises a casing, seed and vacuum chambers with a seed disc being set between them on a horizontal shaft; the disc is fitted with circumferential suction holes on its face surface. A plate diverter of excessive seeds is adjoining the face surface of the seed disc. The diverter is equipped by a shank end with saw-shape ridges and a guide. The guide is fitted by a through longitudinal slot along the symmetry axis and a pin orthogonally coupled with the guide face plane. The cross-section of the saw-shape ridge forms a figure with a closed line; the section is made by the plane perpendicular to the seed disc face plane and placed orthogonally to the seed disc radius passing through the vertex of the saw-shape ridge. Points placed on the closed line are spaced from the seed disc face plane by different distances. The distance of these points and the seed disc face plane is mainly increasing along the movement direction of the suction holes.

EFFECT: invention allows for the increase of excessive seeds removal efficiency and reduction of the seed damage.

6 dwg