Spike assembly for footwear

Details Spike assembly for footwear Spike assembly for footwear

1995-02-27

1996-03-12

Sewell, Paul T.

Boots, shoes, and leggings

Antislipping devices

Disengaging

36134, A43C 1514

Patent

active

054975654

ABSTRACT:
A projectable-retractable spike assembly for use in combination with footwear. The heel and sole of a piece of footwear encase a rotatable shaft and lock subassembly, with a motion translation (conversion) device which is used to drive a network of shafts, levers and rotatable roller bars. Several spikes depend from the roller bars and thus, are motivated to alternately roll out and downward from or upward and into the heel and sole of the footwear. The assembly may be either fabricated for strap-on wear or encased within heel-sole portions of a shoe or boot.

REFERENCES:
patent: 3717238 (1973-02-01), Fox
patent: 3793751 (1974-02-01), Gordos
patent: 4375729 (1983-03-01), Buchanon, III
patent: 4821434 (1989-04-01), Chen
patent: 4825562 (1989-05-01), Chuang
patent: 4873774 (1989-10-01), Lafever
patent: 5269080 (1993-12-01), Davis
patent: 5337494 (1994-08-01), Ricker
Brookstone "Hard to Find Tools" Cat. T-1-95A1 .COPYRGT.1995 Nashua, NH.; pp. front cover, 7 and back cover.

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