| 摘要 |
<p>The corner bend (5) is secured against tear-out by means of back engagement plates (24, 25) anchored in both frame rails (2, 3). The corner bend for each frame rail has at least one back engagement plate. On both fixture grooves (7) at least one entry aperture (32, 33) for the back engagement plate. The corner bend on each arm (9, 10) has a drive rod piece (13, 14) with locking bolts (18, 19) and the back engagement plates are provided in the area of the lcoking bolts. The locking bolts engage behind their corresponding locking piece (26) crossways to the movement direction (27) of the drive rod of the fixture (6).</p> |
