GRUBBER Russian patent published in 2015 - IPC A01G23/06 

FIELD: agriculture.

SUBSTANCE: grubber comprises a frame 1, a hinge mechanism 2, the support wheels 3, an undercutting bracket, an additional frame 9 with the rotor 11, the hydraulic mechanisms 10 of controlling additional frame with the rotor. The racks of the undercutting U-shaped bracket are pivotally connected to the frame and are made in the form of double-armed hydraulically controlled levers 4 and 5, which enable to direct part of the motor power of the tractor to turn the undercutting bracket and cutting large roots of different species, simultaneously increasing the driving force of the machine, created by the propulsion units of the tractor.

EFFECT: with this implementation the roots of different diameters can be cut, it is possible to pull stumps with their row and chaotic placement, which enables to increase the productivity and quality of grubbing.

2 dwg