Expansion anchor

Details Expansion anchor Expansion anchor

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 13/04 (2006.01) E21D 21/00 (2006.01) F16B 13/06 (2006.01)

Patent

CA 2645433

An expansion anchor comprising a tubular body, which extends along a longitudinal axis and displays a deformable end portion on which there are obtained longitudinal slots which divide the end portion itself into a series of anchoring fins, and an expansion nut, which is partially engaged onto said end portion and is adapted to be displaced by a screw so as to radially expand said anchoring fins outwards; each anchoring fin being shaped so as to display an annular ridge on its end and two protruding side teeth, which are arranged on the side edge of said anchoring fin at the two ends of the ridge; each anchoring fin further displaying an external friction surface provided with a plurality of annular notches or cavities coaxial to the longitudinal axis.

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