| 摘要 |
<p>A lock mechanism particularly for doors having a narrow stile, wherein a unique arrangement of components provides greater security and facilitates manufacture and installation, as characterized by a heavy pivotally swingable bolt connected at its inner end to one end of a rocker lever, the other end of the lever being formed with spaced end abutment projections between which a spring-urged latching detent is movably mounted for initial engagement and movement to a non-latching released position by an associated manually rotatable actuating cam extension prior to engagement with one or the other of the abutment projections to move the rocker lever in an appropriate direction for actuating the bolt to its locked or unlocked position. A feature also resides in the use of an insert type of key-operated lock cylinder assembly rather than an assembly of the threadedly mounted casement type, thus enabling use of a relatively thicker cam extension which can be straddled during a portion of its movement by the associated end of the rocker lever.</p> |
