| 摘要 |
For the retention and guidance of pairs of rollers (24), use is made of a split sleeve (8), the first part (7) of which has a C-shaped cross-section and is connected firmly to the lintel (1) and the second part (12) of which is fastened firmly, but releasably to the first part (7) after the door leaf (27), together with the pair of rollers (24), has swung in, the second part (12) having an S-shaped cross-section and the respective upper legs (9, 13) being connected to one another and the respective lower legs (10, 15) being located opposite to and in line with one another, there passing through the gap (16) between them the mounting (25) of the pairs of rollers (24) which is connected vertically adjustably to the upper edge (26) of the door leaf (27). The pairs of rollers (24) can be received by a continuous running-rail profile (18) which engages round these in a tubular manner, the mounting (25) then also passing through a gap (19) in the running-rail profile (18). Sealing angles (50), sealing profiles (31), sheet-metal strips (32) and sheet-metal skirts (38) can be attached additionally as protection against contact, dirt and injury to vision and for a good appearance as well as for insulating purposes, especially fire-prevention purposes. <IMAGE>
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