| 摘要 |
The electric motor (1) has a brake (3) ventilated by a pneumatic lever (4), and is connected to a gear (7). The pneumatic lever is operated by a rod (17) pre-tensioned by a compression spring arrangement. A threaded spindle (13) has a nut (14) for the limit switch defining the top and bottom position of the sliding door. The pre-tensioning of the compression spring arrangement is compensated by a magnet's (23) anchor plate (24) joined to the rod. The pneumatic lever is pivoted by a ratchet lever (19) which has a lug (19a). |
