ROTARY CULTIVATOR Russian patent published in 2003 - IPC

FIELD: agricultural engineering, in particular, machines for presowing soil cultivation. SUBSTANCE: rotary cultivator has frame carrying front and rear batteries of rotary working tools arranged in succession, and drive. Working tools are connected by regulated drive transmission ratio and are mounted on immovable shafts. Bushings are arranged in spaced relation on rear battery shaft. Hangers with knives are joined to bushings. Lever with stop and two pivot joints are immovably mounted on bushing. One of pivot joints connects bushing to knife hangers and other pivot joint connects knife hangers to bar. Bar is mounted on lever for vibrating relative to said stop. Spring of adjustable rigidity is fixed on bar. Safety coupling connected to bushing is mounted on shaft. EFFECT: increased efficiency and enhanced reliability in operation of rotary ripper. 2 cl, 3 dwg