| 摘要 |
An arm (14) may connect the edge of the door leaf (1) to the door frame (2). The arm has a central longitudinal slot (13) and has a joggle in the central portion so that a movable pin (11) on the edge of the door leaf can engage in the slot or come free of it. The pin is mounted on a drive rod (9). The lever may be pivoted (15) on the door frame at one end and may engage a movable catch at the other end. |
