LARGE SEEDS FOREST SEEDER Russian patent published in 2016 - IPC A01C7/00 

FIELD: machine building.

SUBSTANCE: invention relates to forestry machine building, particularly to large seeds sowing seeders, for example, oak acorns, fruits of chestnut, hazelnut. Sowing machine comprises frame 1, bin 2, sowing device 4, seed tube 5, ploughshare 6 and embedding working members. Sowing device is made in form of assembled cylindrical drum, consisting of several coils with adjustable clearance between them depending on number of seeds rows within line width. Coils have prismatic shaped cells 11 of square cross-section, arranged in rows around circumference in staggered order, provided by coils installation in this order relative to each other. Seed tube 5 is made multi-channel with channels spacers 12, entering into drum circular gaps with its upper part with their alignment with corresponding coils. At that, side 14 and front 13 walls are made extended to furrow bottom, and rear wall 15 is shortened for free passage above seeds.

EFFECT: invention allows to ensure uniform distribution of seeds at furrow bottom strictly by rows in staggered order and with uniform supply area for each seed.

1 cl, 2 dwg