| 摘要 |
A locking and unlocking device for opening an emergency exit in which an anti-panic bar is supported, at its ends, by two arms rotating in housings fastened by their bottoms on the leaf of the exit, on each side of the bar, one of the housings including the actual lock and the other including a horizontal finger extension from a lever of the anti-panic bar on the other side of the axis of rotation of the lever toward the bottom of the housing, a slide supported on the finger and vertically movable, whose front upper edge has the shape of a step, the side of the step being almost vertical and the base of the step slightly inclined forward, a transverse rod movable between a rear position where it abuts against the side of the step, slightly above its base, when the slide is in a low position, and a forward position where it is in front of the slide, a return device being provided for the rod in the forward position, the transverse rod being carried by the lower arms of lateral small rods rotating about a transverse axle situated above the transverse rod in or immediately in front of the same vertical plane, when it is in the rear position, the small rods comprising lateral arms directed toward the rear, a two-pronged fork whose base is connected to the armature of a solenoid fastened in the housing, the free ends of the two prongs working together with the lateral arms of the small rods to bring the armature into a rear position against the side of the step when the solenoid is energized, and a part of the slide clamping the operated state of microcontacts when the slide leaves its low position.
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