CULTIVATOR WORKING TOOL Russian patent published in 1997 - IPC

FIELD: agricultural engineering. SUBSTANCE: cultivator has hoe with tine provided with longitudinal slot. Mellowing working tool mounted within slot by means of horizontal shaft is made as irregular-shaped, for instance oval-shaped, disk with cutting edge extending along its perimeter. Disk is provided with oscillating motion drive and has single-side cutting edge. Disk may be repositioned into one of openings, with opening axes being coincided in ellipse focuses for positioning on horizontal shaft. Openings providing access for connecting to drive are positioned along larger axis of ellipse. EFFECT: increased efficiency in cultivation of heavily sodded soils or weederies, simplified construction and enhanced reliability in operation. 2 cl, 5 dwg