DEVICE OF TILLAGE TOOL Russian patent published in 2012 - IPC A01B21/08 A01B29/04 

FIELD: agriculture.

SUBSTANCE: device includes a frame, left and right ring roll piles located at approach angles. Each pile is connected pivotally to the corresponding draft arm via supports with the help of two spring-biased drafts. The draft arm is attached to a short and a long bar for connection of the arm to the frame of the machine that comprises this very tool. The short and long bars are made in such a way that it is possible to interchange them and to reinstall one bar in the place of another meanwhile locating the ring roll piles at the approach angle of the antithetical sign. Drag bars with the plank designed for leveling of the soil and with the unit meant to control the slope angle of the plank in relation to the soil are connected pivotally to the support of each draft.

EFFECT: increase in the quality of tillage due to quick rearrangement of the ring roll piles to the position that excludes formation of ridges on the joints of the ring roll piles of two adjacent tillage machines connected with the help of a hitch component as part of the wide-level assembly, and efficient leveling of the rigs after the shovels and wheel tracks with the soil.

4 cl, 4 dwg