SAFETY DEVICE OF TILLAGE TOOL Russian patent published in 2012 - IPC A01B61/04 

FIELD: agriculture.

SUBSTANCE: device comprises a housing rigidly mounted to the frame with a rod and a spring chassis installed in it. At the end of the rod a spherical disk is mounted on the bearings. In the cylindrical housing the slots are cut for the rollers. The rollers are mounted on an axis passing through the rod. The spring is installed inside the housing so that its one end rests on the bottom of the rod, and the second - on the housing. Shock absorber is mounted with its lower end to the rod and with the upper end to the upper lid, on which the damper is installed.

EFFECT: invention enables to improve the quality of the soil, to reduce the load on the working body in overcoming the obstacles, to improve the tool reliability and to reduce the tractional resistance of the tool.

2 dwg