PLASTIC ANCHOR FOR DRYWALL, PLASTER, BRICK, CONCRETE, ETC.

摘要

An anchoring device for insertion in a hole provided in a structure such as a wall (hollow or solid) comprises proximal and distal sections. The proximal section includes a head defining an aperture for receiving a fastener, and t he distal section includes a pair of expandable wings displaceable between collapsed a nd expanded positions. Each wing is biased towards its expanded position such that the wings can engage the structural material delimiting the hole or a distal surface of the structure. The distal section comprises, proximally of the wings, a variable--length flexible portion for allowing the wings to engage the distal surface of the structure for various structure thicknesses. The distal section comprises, distally of the wings, a tip section adapted to spread outwardly when engaged by the fastener. The proximal section comprises a pair of legs each having a toothe d rack for engaging the structural material. The two legs are separated by a pair o f slots. The distal section comprises at a proximal end thereof a pair of wedge portions adapted to engage the slots when the distal section is drawn towards the proximal section, for spreading the legs outwardly into the structural material. The racks are adapted, when the fastener is engaged in the proximal section, to pivotoutwa rdly into engagement in the structural material.