| 摘要 |
<p>A closing device has a key-operable closing cylinder which is simultaneously a component of a pusher and serves as a hand-operated thrusting device for operating locking elements. A central locking system can be used to actuate a lever with a drive. Malfunctions result when the central locking lever, moved to a secured position by the drive of the central locking system, blocks the components in the closing cylinder such that the key cannot be inserted into the closing cylinder when a pushing arm which is rotated by the closing cylinder is in an inactive position and blocked. This is avoided by using coupling elements which are provided between the supporting points of the lever allocated to the central locking system and also between the supporting points of the pushing arm. In accordance with the rotated position of the key in the closing cylinder, the coupling elements change between coupling and uncoupling positions. The lever is uncoupled when the pushing arm is in the inactive position. Accordingly, movement of the lever ceases, this movement caused by the drive of the central locking system, thus preventing engagement of the pushing arm.</p> |
