Shoe sole with retractable cleats

Details Shoe sole with retractable cleats Shoe sole with retractable cleats

1988-03-01

1989-10-17

Chi, James Kee

Boots, shoes, and leggings

Antislipping devices

Disengaging

36 29, 36134, A43C 1514, A43B 1324

Patent

active

048737747

ABSTRACT:
A show sole is provided with one or more chambers therein. A piston-like cleat plate is fitted for vertical movement in each chamber. Cleats are fitted to the cleat plates, and openings are provided in the chamber bottom for permitting the cleats to pass therethrough when extended. The cleat plates are spring-biased to a retracted position. A source of fluid pressure such as a squeeze bulb type air pump is connected for supplying fluid pressure to the chambers to cause the cleat plates to move downwardly to extend the cleats from the sole bottom, to provide gripping traction. An inflatable member can be provided above the cleat plate in each chamber. A pair of soles may be connected via supply lines to a remote pump positionable at a convenient location on the wearer's person.

REFERENCES:
patent: 2303744 (1942-12-01), Jacobs
patent: 3793751 (1974-02-01), Gordos
patent: 3925529 (1975-12-01), Bernier et al.
patent: 4375729 (1983-03-01), Buchanen, III
patent: 4674200 (1987-06-01), Sing

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