| 摘要 |
<p>A concealed fixing retaining clip for fixing a roof or other cladding sheet to an underlying support structure is disclosed. The clip comprises a base, a pair of side walls that extend from the base, and a pair of flanges that define retaining members for engaging re- entrant portions in the sides of ribs of cladding sheets. The flanges define arches that extend outwardly and downwardly from upper ends of the side walls. The flanges are mirror images of each other about a centreline plane that passes perpendicularly through the base. Each flange may have a stiffener on each side of a centreline of the flange. The side walls may include inturned side edges that improve the rigidity of the side walls.</p> |
