| 摘要 |
<p>The closure body is a continuous flexible plate (8), in which electric conductors (15) are embedded. At the top, the conductors (15) are connected to connections (19, 22) on the outside on the motor-driven winding shaft (7); connection wires (20) lead from the connections through the hollow winding shaft (7). At the lower end of the closure body (8), the conductors (15) are provided with limit switches (14). With these limit switches, the drive of the winding shaft (7) can be interrupted. <IMAGE></p> |
