| 摘要 |
<p>A rail (1; 21) for attachment of a filter bag (45) having at least one longitudinal edge (44) with a rim (49) under a ceiling or on a wall, said rail having a channel (10; 30) to receive the rim (49), the width of which is larger than the distance between the free edges (7, 8; 27; 28) of a first (5; 25) and a second rib (6; 26) defining the channel (10; 30). In order to insert the rim (49) crosswise in relation to the longitudinal direction of the channel (30) the first rib (25) is positioned movably in the rail (21) according to the invention so that the first rib (25) can be moved from a locked position into a neutral position. In the neutral position the distance between the free edges (27, 28) of the first (25) and the second rib (26) is so large that the rim (49) may be inserted into the channel (30) from one side hereof, whereas the mentioned distance in the locked position is so small that the rim (49) cannot be pulled out of the channel (30).</p> |
