Agricultural equipment of cultivator drill and coulter set includes support rod hinged to drill and roller frames and powered by cylinder hinged to fixed equipment.
A support rod (10) is hinged to the drilling machine (6) frame (7) round an axis (12) normal to working direction (11) and otherwise hinged round axis (20) to the roller filler (3) frame (5). An hydraulic cylinder (13) engaging the rod (10) at spacing from the axis is hinged at its far end (14,15) to a fixed part of the equipment. The interval between points (20,12) of the support rod equals that between the hinge points (22,23) of the top rod (8) arranged parallel to the support rod (10). The arms (4) are hinged (26) to the cultivator frame and the interval between points (26) and (20) and the interval between points (22,23) are all equal so the line joining the axes (26,20) lies parallel to the top rod (8) in the equipment operating position. The share frame (40) pivots round an horizontal axis (42) assisted by a connecting rod (43) hinged to rod (10) at spacing from axis (12) and additionally hinged to the frame (40) at distance from the pivot axis (42).
