| 摘要 |
<p>Seed-drill shoes have a seed distribution mechanism feeding a plurality of chutes, each opening into a drilling device. Each drilling device (1) consists of a flat iron bar (8) and a tube (6) in which the seeds arrive, the flat iron bar (8) being located in front of the tube (6) in relation to the direction of advance A and being curved at its lower end at nearly 90 DEG , so that the lower end (6a) of the tube (6) is within the curve formed by the curved part (8b) of the flat iron bar (8). <IMAGE></p> |
