Threaded wedge retainer for top lift

Details Threaded wedge retainer for top lift Threaded wedge retainer for top lift

1989-04-03

1990-05-15

Meyers, Steven N.

Boots, shoes, and leggings

Heels

Detachable

36 36R, A43B 2136, A43B 2142

Patent

active

049246070

ABSTRACT:
A releasable retainer for a replaceable top lift (30) of a shoe heel (10) includes a threaded wedge (25) threaded into a retainer hole (18) that intersects a mounting hole (15) for the top lift. There, a dowel rod or tube (20) holding the top lift at its bottom end (23) has a slot (21) at its upper end (22) engaged by a conical wedge tip (26) of threaded wedge (25) threaded into retainer hole (18). The wedging action of conical tip (26) in slot (21) of tube (20) or rod (50) spreads the tube and holds it firmly in mounting hole (15), against both rotary and axial movement.

REFERENCES:
patent: 97681 (1869-12-01), Norburn
patent: 1286054 (1918-11-01), Mizsak
patent: 1477045 (1923-12-01), Ellensohn
patent: 1762170 (1930-06-01), Gentile et al.
patent: 1949346 (1934-02-01), Bain
patent: 2137816 (1938-11-01), Sullivan
patent: 2825154 (1958-03-01), Windle
patent: 3041747 (1962-07-01), Pfeil
patent: 3133362 (1964-05-01), Faccin
patent: 3822709 (1974-07-01), Griner
patent: 4403426 (1983-09-01), Kaplan
patent: 4443956 (1984-04-01), Caccavale
patent: 4819344 (1989-04-01), Schuller

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