| 摘要 |
A hotel-function mortise lock with improved deadlocking and deadlocking release cam mechanism, comprising a release cam block slidably mounted on the latch bolt tailpiece against the rear tailplate by which it is retracted. A latch deadlocking lever pivotally mounted in the lock case has a forward blocker arm movable into deadlocking position behind the latch and has a rearward release arm which carries a cam nose in the path of initial movement of a cam finger on the slidable cam block, so that latch-retracting movement of the cam block initially moves the deadlocking lever to non-blocking position. The lock includes both a key cylinder-actuated lever and a knob hub-actuated lever, both of which are engaged with the cam block so as to act therethrough in retracting the latch and thereby cause the same single cam finger to release the deadlocking lever to permit full retraction of the latch by either of such latch-retracting levers. The lock shown has certain parts usable for other functions, and for hotel function has a stop bar fixed in the case to lock the outer knob hub against rotation.
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