COMBINED SOIL TILLAGE TOOL Russian patent published in 1998 - IPC

FIELD: agricultural engineering. SUBSTANCE: tillage tool has frame, disk batteries positioned in succession and flat hoes whose cutting edges define angles with their apexes directed in forward direction. Flat hoes are arranged relative to disk batteries so that distance in horizontal plane lengthwise of working tool between apex of angle, defined by hoe blade lines and axis of disk battery disposed in front of this hoe, for at least half the hoes is D...D (1+Sin α), where D is diameter of disk, α is angle between disk battery axis and transverse line of unit. Distance from blade angle apex of hoe from axis of battery positioned in front of this hoe does not exceed 2D (1 + Sin α). EFFECT: increased efficiency, simplified construction and improved soil tillage quality. 2 cl, 3 dwg