COMBINED TILLAGE TOOL Russian patent published in 2006 - IPC A01B49/02 

FIELD: agricultural engineering.

SUBSTANCE: tillage tool has curved frame, plow bodies, and harrow-comb with curved frame. Harrow-comb is pivotally connected with its edge left-hand relative to the course of advancement to rear end of plow frame and is pivotally connected with its edge right-hand relative to the course of advancement to hydraulic cylinder stem head. Hydraulic cylinder is pivotally coupled with its other end to mid portion of plow frame main beam, at an angle to the latter. Comb teeth are composed of detachable base and tubular tip which is loosely put onto base. Cylindrical compression spring is located within tubular tip. Tubular tip is closed at its lower end with conical apex.

EFFECT: improved quality and increased efficiency in tilling soils of different mechanical composition, including stony soils.

3 dwg