Self-drilling hollow wall anchor

Details Self-drilling hollow wall anchor Self-drilling hollow wall anchor

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 13/04 (2006.01)

Patent

CA 2585161

A high strength failure-resistant hollow wall anchor having a self drilling threaded installation structure adapted to be broken, after positioning, by an inserted screw, into expandable anchoring elements. The anchoring elements engage internally formed cams and the distal surface of the wall into which the anchor is deployed and are comprised of a plastic sufficiently rigid to effect a threaded insertion and to be broken apart, but which plastic is also sufficiently flexible to be able to form the expansion anchor member on the distal surface of a wall. The anchor includes anti-rotation elements to retard overtightening and anchor removal prior to screw removal.

L~invention a pour objet une pièce d~ancrage mural creuse haute-résistance et résistant aux défaillances dotée d~une structure filetée de pose autoperceuse conçue pour être brisée, après la mise en place, par une vis rapportée dans des éléments d~ancrage extensibles. Les éléments d~ancrage sont en prise avec des consoles formées à l~intérieur et la surface distale du mur dans lequel la pièce d~ancrage est déployée et sont composés d~une matière plastique suffisamment rigide pour permettre une insertion filetée et être brisée, mais aussi suffisamment souple pour former l~élément d~ancrage extensible sur la surface distale du mur. La pièce d~ancrage comprend également des éléments antirotation pour retarder tout serrage excessif et le retrait de l~ancrage avant le retrait de la vis.

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