| 摘要 |
A keeper for a door-lock comprises a casing 20 having an opening 24, through which the extended door lock bolt may pass and a detent 30 movable by the actuation of solenoid 46 from the blocking position shown to a release position. The detent may be held in either the blocking or the release position by the engagement of plate 62 with recess 64 or 66 respectively in shaft 58, the plate 62 being mounted on shaft 80, spring urged to its engaging position, and removed from it by solenoid 60. The device is unlocked by a switch which instantly actuates solenoid 60 and, after 1 DIVIDED 2 second, solenoid 46. It is locked by a quick push on the switch which releases lock plate 62, allowing detent 30 to fall. In both actions the lock plate automatically engages in the appropriate recess to hold the detent 30 in its final position. <IMAGE> |
