| 摘要 |
<p>A blocking element is movable into a closing position, after removal of a section of rail, in a frame forming a passageway, where a conveyor system with rails passes through a wa ll or ceiling, with protective sealing in the event of fire. The passageway (14) in the frame (12), and/or the conveyor opening incorporates a widened area (140). The section of track (8) is movable into this in a direction virtually the same as the movement of the blocking element. It may be mounted so as to swivel sideways. Simple construction permits reliable removal of the track section, without dependence on power supply.</p> |
