SELECTION DRILL Russian patent published in 2007 - IPC A01C7/00 

FIELD: agricultural engineering.

SUBSTANCE: selection drill has seeding units, shanks, seed guides, and frame. Seeding units are positioned on car movable within drill frame and are made in the form channels with pushing-out stems. Stems are moved by means of lever whose one arm acts upon stems and other arm moves over inclined guide along length of car pitch. Size parameters are correlated by ratio: (L/l)a=H, where L is length of lever arm engageable with guide; l is length of lever arm engageable with stem; a is length of seed column; H is height of inclination of guide.

EFFECT: increased efficiency in selection sowing of seeds and improved sowing quality.

1 dwg