SEEDING APPARATUS Russian patent published in 2007 - IPC A01C7/16 

FIELD: agricultural engineering, in particular, technique for seeding of low-flow and high moisture content seeds.

SUBSTANCE: seeding apparatus has hopper equipped with stirrer and drum positioned under hopper throat and equipped with seeding slot provided through drum upper bottom. Seeding roll with flexible needles is positioned within drum on shaft. Vertical plank fixed on lateral wall of drum is designed for cooperation with needles. Seed feeding window positioned behind vertical plank is communicating with seed guide. Seeding slot is formed three-sided. Front side of slot is formed in orthographic projection on drum bottom of peripheral needle portion the moment it descends from plank. Peripheral side of slot is defined in orthographic projection on drum bottom of path of flexible needle end from the moment it descends from plank to complete straightening during rotation of seeding roll. Rear side of slot is extending along straight line. Needles are arranged in rows transverse to roll axis. Needles are arranged in rows with mutual angular interval reducing downward from one row to another row.

EFFECT: increased efficiency and uniform seed feeding.

3 dwg