Fastener for retaining sheet cladding
AssigneeRostfria Tak Aktiebolag
InventorsSture Netterstedt, Bengt Lindstrand
Life of this patent
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Abstract
A fastener for retaining sheet cladding, such as roof or wall sheeting, with outstanding flange joints, comprising an anchoring portion intended for attachment to a substructure, either directly to it or via an anchoring plate, and a fastening portion lying generally at right angles to the anchoring portion, which is intended to be united with the outstanding flange of the sheet. The attaching portion is made in hard-rolled thin sheet with a thickness of 0.15 mm or thinner, so that it can be seam-welded to the outstanding flanges in conjunction with welding these together without the continuity of the welding seam being broken, and the anchoring portion is reinforced by means of a doubling plate which preferably lies exterior to the anchoring portion.
Claims2
A composite fastener for retaining sheet cladding, such as a roof or wall sheeting, with outstanding flange joints, comprising a plate having an anchoring portion formed with a bent end intended for attachment to a substructure and a fastening portion lying generally at right angles to the anchoring portion, which is intended to be united with the outstanding flange of the sheet, said plate being made of hard-rolled one-layer thin sheet of stainless steel with a thickness of 0.05 to 0.15 mm., so that it can be seam-welded to the outstanding flanges in conjunction with welding these together without the continuity of the welding seam being broken, said anchoring portion being reinforced by means of a separate doubling plate of stainless steel, which is softer and thicker than the hard-rolled sheet forming said plate, said doubling plate lying on an exterior surface of the anchoring portion, curved about said bent end and being welded to said anchoring portion.
Dependencies are inferred from the claim text.