| 摘要 |
<p>A fastening system comprises in combination a fastening unit (20) and a steel installation channel (1) having a bottom wall (2) and opposite the bottom wall flanges (5) which extend towards each other and which delimit between them a longitudinal slot (6) extending over the length of the installation channel. The bottom wall (2) comprises two side strips (2A) and a central strip (2B) located between the side strips, which central strip is arranged recessed with regard to the plane defined by the side strips, and has oblong openings (7). The fastening unit comprises an oblong anchoring element and tensioning means. In use the anchoring body with its longitudinal axis can be inserted between the longitudinal edges of the oblong opening and between the flanges delimiting the longitudinal slot.</p> |
