| 摘要 |
A ploughshare consists of a leg, to which a cultivator blade with a broadcasting chamber is fixed with simultaneous air supply thereto. In the upper part a roller with a parallelogram suspension arm is fixed to the leg with the aid of a bracket. On said parallelogram suspension arm a spring and a screw mechanism, a covering roller and leads are mounted. An additional leg with a cultivator blade with a broadcasting chamber for undersowing grasses is fixed thereto. |
