SEMIAR COMPRISING A SERIES OF ARMS, HOLDERS OF SINGLE DISCS AND FOLLOWING ROLLERS, SUPPORTED UNDER THE CHASSIS THROUGH ELASTIC JOINTS

摘要

This seed drill comprises a frame (1) which supports a hopper (11) intended to contain the seed to be dispensed, and which is provided at the front of a drawbar (10) for coupling to a tractor, a series of carrying arms (2) being arranged longitudinally side by side under this frame (1), and supported by it, with a certain freedom of movement in the vertical direction, each carrying arm (2) being equipped with sowing disks (5a, 5b) and follower rollers (6a, 6b) .This drill is remarkable in that each arm (2) is integral with the frame (1) via a pair of resilient hinge systems arranged one (3) to its front end and the other end (4) at its rear end, each of them working in torsion, so as to develop a torque which urges the arm downwards in order to firmly apply the sowing discs (5a, 5b) and the follower roller (6a, 6b) against the ground.Agricultural material.