DRILL Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: drill has a frame, carrier drive wheels, a draft bar, and spring-loaded rocking tenons. Ends of these tenons are connected with the draft bar, and other ends of the tenons are connected with double-disk colters. The drill is provided with freely swivel primary furrow cutters mounted on brackets ahead of the colters. The drill is also provided with a seed box with seeding units, seed spouts, and other devices. The primary furrow cutters are disk knives, and their brackets are rigidly attached to the spring-loaded rocking tenons of the colters so that they combine to form a spring-loaded rocking bell-crank sagging downward. The disk knives are mounted for adjustment of their position. In operation, the soil is distorted, and it offers lower resistance to the outfit. The drill allows for adjustment of the furrow depth and position, and overloaded may be avoided. EFFECT: enhanced operating capabilities. 6 dwg