| 摘要 |
In a door locking system of the type having a security mechanism for locking a locking button when a lock cylinder is locked, a switch lever is installed on a lock cylinder main body for rotation therewith, and an operating force transmitting lever is rotatably installed on the lock cylinder main body and operatively connected to the locking button. The switch lever and the operating force transmitting lever are connected in such a manner as to allow, when the lock cylinder main body is rotated from a locking position to a security mechanism unlocking position, the switch lever to rotate relative to the operating force transmitting lever. When the switch lever is rotated into the security mechanism unlocking position, the security mechanism is electrically or electromagnetically actuated to unlock the locking button.
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