| 摘要 |
<p>Running rollers are attached to the top edge of the leaf, and a running rail is fixed to the building, for a large sliding fire-resistant door made of steel. The top edge of the door leaf (2) is offset at an angle towards the side of the rail (4). This provides a stem piece (6) which protrudes upwards in relation to the rear edge area, with the rollers (3) mounted on its rear side. A screen (9), fastened to the rail, has its top cross stem piece (10) covering the leaf from above, and incorporates a covering stem piece (11), running vertically downwards, partially overlapping the lead in its front side area. The leaf may be offset in a box shape, in the area facing away from the stem piece, so as to provide an edge stem piece (8) running round on at least three sides.</p> |
