| 摘要 |
<p>The bolt contact is intended for security doors and becomes effective after first or second turning of the key. The bolt contact is also used for distance equalisation between the bolt and the lock shield. A switching lever (2), actuated by the bolt (12), is mounted between the shanks of a U-shaped platelet (1). Part of the lever circular circumference carries a lined switching position bores (61-63). These bores can be selectively engaged by a pin (5) on a switching cam disc (3) under the force of a helical spring (8). The cam (4) on the disc actuates a microswitch (10). Preferably the axial force of the helical spring secures the latching position of the cam disc, while its radial spring force urges the unloaded switching lever in its basic position.</p> |
