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

FIELD: agriculture.

SUBSTANCE: invention is designed for precise sowing of row crops. The apparatus comprises a casing, an intake chamber and a vacuum chamber. A seeding disc with suction holes and a central rubber agitator are mounted on a horizontal shaft between the intake and vacuum chambers. A plate reflector for removing seed excesses adheres to the end face plane of the seeding disc. A guiding seed dropper is set in the lower casing part. The guiding dropper consists of a casing made as a hollow cylinder. It is mounted so that the dropper is placed in the seed dropping zone and adheres to the end face plane of the seeding disc. A seed guide made as a gutter is fixed at the lower part of the guiding dropper. The gutter is curved as an arch in the direction opposite to the direction of the seed distributor motion. The dropper is pivotally connected to the guiding dropper with the possibility to alter the inclination angle in respect to horizon. The guiding dropper allows for the adjustment of seed motion speed by selecting guides with different radiuses of curvature.

EFFECT: invention provides for increasing uniformity of the seeds distribution along the length and width of the row when sowing different row crops.

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