Anchor for hollow walls

Details Anchor for hollow walls Anchor for hollow walls

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 13/04 (2006.01) F16B 13/00 (2006.01) F16B 13/06 (2006.01)

Patent

CA 2414436

An anchor for mounting to a hollow wall made of friable material comprises a proximal flanged end adapted to be engaged by a rotatable tool to rotate the anchor about a longitudinal axis thereof and to cause it to gradually engage the wall, a distal end adapted to cut through the wall as the anchor is rotated, and a shank extending between the proximal and distal ends. The shank includes at least one expandable leg that is in a collapsed position thereof when the anchor is rotated to mount it to the wall and that is located distally beyond a non visible surface of the wall once the anchor has been mounted to the wall and is in a first position thereof. The wall anchor includes a thread that is securely engaged in the wall when the anchor is in its first position. The wall anchor is adapted to receive a threaded fastener, e.g. a screw, therein and to threadably engage the same distally of the leg such that sufficient rotation of the threaded fastener retracts the distal end towards the proximal end thereby causing the leg to displace to an expanded position thereof, the leg in this expanded position engaging the non visible surface of the wall.

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