| 摘要 |
At one rail end (14) several collar parts (30, 32) are available in the longitudinal direction (L) of the rail (12). The collar parts in relation to the material strip (18) from which they extend are displaced (d) in a vertical direction. The counterposed spacing of the collar parts in this vertical direction corresponds to the thickness of the material strip. In the central area of the base rail (12), somewhat U-shaped in cross-section, are a front and a rear flange (26, 20), a rib (18) between the two flanges, with the groove and/or tongue formation (30, 32) on the rib. |
