GRUBBER FOR UPKEEP OF MACHINE-CUT PEAT BOGS Russian patent published in 1994 - IPC

FIELD: peat industry. SUBSTANCE: grubber comprises vertically-movable frame with carrier rollers. Frame is articulated by coupling shackle with truck tractor. Working tool mounted on frame comprises central uprooting tooth, end teeth and undercutting thrust cutter. Working tool is linked with frame by longitudinal beams secured on uprooting teeth and consisting, each, of movable and fixed parts. Lengths of said fixed parts and that of movable beam portion installed on central uprooting tooth , and distance from suspension axle of movable beam portions to central uprooting tooth are 3-4 times the width of the undercutting thrust tooth. Lengths of fixed portions of beams are equal to one another while length of movable portion secured on central uprooting tooth is smaller than that of movable portions of end beams. EFFECT: improved design. 2 cl, 3 dwg