| 摘要 |
<p>The grid (1) has frames (7) i.e. wall borders, surrounding an opening (6). The frames comprise a rear side (8) that faces a wall opening. A flap (9) is provided for closing the opening. The frames are designed in a flat manner at an outer circulating edge (12). A holding strip (10) is attached at the rear side for swivelable guiding of the flap around a swiveling axis. The flap has a swiveling lever (21) that is arranged at ends of a profile strip. The flap is guided from a closing position into an opening position by swiveling around the swiveling axis.</p> |
