| 摘要 |
<p>The door operating drive has a self-locking device (12,13) for holding the door in the fully closed position, with a manual operating device (15) on the drive side of the self-locking device, allowing the door to be brought into the fully closed position when the door operating drive is defective. Pref. the self-locking mechanism uses a dead-point mechanism or a knee-lever mechanism, with the manual operation device provided by a claw pivoted about an axis (16) for engaging the element (12) of the self-locking mechanism on the drive side.</p> |
