| 摘要 |
<p>Electric safety-lock consisting of a motor (3) which by means of movement reduction gears (4,5) drives a worm screw (6) axially mounted on the driven wheel (5). A slider (8) is keyed onto the worm screw (6) on which the mobile lock studs (9) entering the holes (10) in the locking box (1) are fastened. A mobile rack (13) is mounted on the slider (8); the rack (13) may be operated in case of emergency by a gear wheel (14) meshing with a cylinder or sprocket latch (17) and functioning when using a key (15) or knob. An electric circuit provided with sensors (24, 25, 26) provides for remote control (34) of the door lock by means of opening (A) and closing push-buttons (C) The safety-lock may also be equipped with an alarm system. <IMAGE></p> |
