| 摘要 |
A motorized locking mechanism for locking and unlocking a device having a hub rotatable by a handle about a hub axis. A reversible motor turns a threaded spring screw to move a locking spring and vertically drive a connecting arm between ocked and unlocked positions. A locking slide is mounted on an end of the connecting arm so that it can pivot parallel to the hub axis. As the motor drives the connecting arm to the locked position, the locking slide moves into interfering engagement with the hub to lock the device. The pivoting motion of the locking slide protects the locking mechanism, and particularly the connecting arm, against damaging forces that can be applied by the rotating hub through the locking slide. If the locking slide is temporarily prevented from moving into or out of locking engagement with the hub, the motor may still turn and the locking spring subsequently moves the locking slide in the desired direction without the necessity of reactivating the motor. |
