PNEUMATIC SEEDING UNIT Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: seeding unit has casing with seed chamber, cover with vacuum chamber, seeding disk with suction openings, and fork-type ejector with front and rear pins. Seeding unit is further equipped with guide fixed inside casing near fork-type ejector. Guide operating surface is made in the form of projection positioned tangentially of circle, along which suction openings are arranged, and in spaced relation with respect to rear pin enabling passage of one seed. Seeding unit is adapted for mounting in precision seed drills. EFFECT: simplified construction and provision for precise selection of single seed. 1 dwg