| 摘要 |
<p>A device, for example a window, a door or a ventilation flap, has a frame (2) and an openable leaf (3, 4) mounted on the frame (2). The leaf (3) is detachably mounted on the frame (2) exclusively by individually releasable fastening means (5.1, ..., 5.4). The fastening means are preferably movable, knuckle-joint-type ball-and-socket joints (24, 12). The ball-and-socket joints may be preferably unlocked by remote control.</p> |
