摘要 |
<p>The bellows (10) have a U-shaped peripheral frame and a coupling unit for connecting a wave or fold-shaped cover, where the bellows have two halves (11, 12) that are connected with each other by a U-shaped central frame (20). The central frame comprises the coupling unit utilized for connecting the cover. The coupling unit stays in connection with the central frame by a joint. A cross-unit is arranged in a roof area of the bellows.</p> |