| 摘要 |
<p>The unit (40) has drive blades (41,41`), which are prestressed against each other. A collecting chain (10) includes a saddle segment and a receiver segment, where the saddle segment forms a saddle shaped roof (14) of the collecting chain. The drive unit is detachably attached to the receiver segment. The drive blades project laterally from the roof of the collecting chain, where the drive blades have a common axis of rotation.</p> |
