Seed drill for spreading seeds in prepared and unprepared soil

摘要

The seed drill incorporates a base frame (2) and has a number of soil-working tools (7-10). Seed is fed from a hopper (3) near the front of the machine down a pipe (4) leading to a distribution system (5,6) supplying seed to individual shares which penetrate the soil. A roller (14) behind the shares supports the rear end of the seed drill. The individual shares are connected to the frame of the seed drill by a set of parallelogram linkages (22).