| 摘要 |
<p>The lock has a retractable bolt (3) carried by a plate (4), and springs (5) for moving the plate to insert the retractable bolt into a retaining pin. The plate forms a movable frame of an electromagnet housed in the body (1) of the lock, where the body is fixed on an edge of a swinging door. The plate and the springs are guided on posts (7) whose axles are arranged parallel to the direction of movement of the bolt.</p> |
