COMBINED DISC-HOE OPENER Russian patent published in 2012 - IPC A01C7/20 

FIELD: agriculture.

SUBSTANCE: opener comprises a housing 1, a flat disk 2 mounted at an angle to the direction of movement, an anchor-scraper bar 3 with the outer and inner sides and seeds-fertiliser guide 4. The housing is equipped with an attachment 7 for sowing small-seeded crops, pivotally mounted on the housing with a lead 6 with an elastic element 13. The attachment 7 consists of two anchor tubular openers 8 symmetrically arranged behind the disc-hoe opener, each of which is designed as a seed-pipe 9 with a point furrow-former 10 entering into the soil at the obtuse angle. The lead is placed in the slit guide 11 mounted on the housing 1 of the opener with an ability to move in the vertical plane.

EFFECT: constructive implementation enables to upgrade seeding-machines with a single-disc hoe openers of band sowing for sowing small-seeded crops (colza, flax, etc) and grass seeds with the application of fertilisers deeper than the seeds and apart from them (to protect from burns), and also to reduce the seeding-machine weight up to 200 kg.

2 dwg