| 摘要 |
<p>The invention provides a lock with a forward and reverse action bolt element (25, 26, 29) and a lock cylinder (17) which precedes the operating region (B) of the bolt element (25, 26, 29) into which the force for shifting the bolt element (25, 26, 29) is to be introduced. The lock comprises an arresting element (34) which can be fused at least locally by the effect of heat on the lock cylinder (17) and which, after fusion, arrests the bolt element (25, 26, 29) against reverse lock actuation. In an alternative embodiment, the lock may comprise a coupling (51, 52, 56) between the operating region (B) and a lock-actuating element spatially separated from it and protected by the lock cylinder (17), which coupling (51, 52, 56) can be broken by fusion due to the effect of heat on the lock cylinder (17).</p> |
