F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/30
F16B 13/04 (2006.01) E06C 9/04 (2006.01) F16B 13/02 (2006.01) F16B 13/12 (2006.01)
Patent
CA 1057540
A B S T R A C T A mounting support for insertion into a bore in the wall, and a climbing element, the climbing element having a hollow shank portion which is inserted into the mounting support, the mounting support comprising a hard, strong, yielding plastic sleeve having a cylindrical or square cross-section, the sleeve having inner and outer longitudinal surfaces with serrations, in the form of ring-shaped fins which are interrupted to form fish scale sectors with gaps between them, the gaps being arranged in staggered relation to each other peripherally, the serrations on the inner surface having oblique slopes running in the direction of insertion of the sleeve into the bore in the wall and the serrations on the outer surface having oblique slopes running in the other direction whereby, when the shank of the climbing element is inserted into the sleeve and the sleeve is force fitted into the bore in the wall, said serrations resist pulling away of the climbing element from the wall and said staggered gaps between adjacent fish scale sectors form a labyrinth seal.
291850
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