DIGGER Russian patent published in 2001 - IPC

FIELD: agriculture. SUBSTANCE: digger has at least one share and toothed disks positioned at both sides of share. Cutting edge of each tooth is made curved, with constant cutting angle. Toothed disks mounted at outer side of digger are equipped with ground-engaging members and are connected to drive. Toothed disks are connected to drive shaft through sleeve and flexible members attached with their one end to toothed disk and with their other end to drive shaft. Sleeve is rigidly mounted on drive shaft. Bases of sleeve are extending perpendicular to spindle of drive shaft, and generatrix of sleeve cylindrical surface is out of parallelism with respect to axis of rotation of drive shaft. Axis of internal opening of toothed disk hub mounted on sleeve is extending in parallel with sleeve generatrix. EFFECT: enhanced reliability in operation and simplified construction. 3 dwg