Locking and unlocking control device for access door, has control body moved between rest and inserted work positions, pushbutton operating head accessible via window of frame, and control unit with springs to return body to rest position

摘要

The device has a frame (41) with a window (43) in the front, and disposed with a control body (45) which is movable in translation between a rest position (R) and an inserted work position (T). An operating head (51) of a pushbutton (49) is accessible through the window of the frame. A working part (56) is operated by the body in work position, and a control unit (46) with springs returns the body to the rest position. An independent claim is also included for a door.