| 摘要 |
<p>A latch lock having a latch which is arranged so as to be displaceable against spring force in a lock case that can be fastened to a wall, door leaf, or the like, having a first locking cylinder whose thumb draws the latch back against spring force when the cylinder core is rotated by a key. The locking cylinder is constructed in such a way that it allows the key to be pulled out only in a determined position of the cylinder core with reference to the cylinder housing such as in the locking position. According to the invention, a second locking cylinder is arranged in the lock case and coupled with the first locking cylinder such that, when rotated by means of a key, its thumb moves the first locking cylinder into the determined position in which the key can be extracted from the first locking cylinder.</p> |
