| 摘要 |
<p>The door lock comprises at least one movable latch guided in a channel in the casing and biased by a spring. The rear of the channel contains a pulley, the rotational axis of which is perpendicular to the direction of displacement of the latch. The central part of a cable is secured to the pulley and each end of the cable carries a stop for location into the latch. When the pulley is rotated in either direction by the handle the cable releases the latch by withdrawal into the casing.</p> |
