Jogging shoe with adjustable shock absorbing system for the heel

Details Jogging shoe with adjustable shock absorbing system for the heel Jogging shoe with adjustable shock absorbing system for the heel

1979-01-31

1981-04-28

Kee Chi, James

Boots, shoes, and leggings

Boots and shoes

Occupational or athletic shoe

36 29, 36 59C, A43B 500, A43B 1320, A43B 506

Patent

active

042637287

ABSTRACT:
A jogging shoe has an adjustable shock absorbing system for the heel impact surface in the form of an inflatable air chamber with downwardly extending pump-like pegs and the hollow cavity interiors in communication with the air chamber. When the jogging shoe impacts against the running surface, the pegs depress, compressing air contained in their cavities into the air chamber which distributes the impact force across the entire sole of the shoe. After the pegs depress, the air chamber can also partially compress to absorb the remainder of the force. Thus a two-step shock absorption and distribution system is provided.

REFERENCES:
patent: 2020240 (1935-11-01), Cochran
patent: 2090881 (1937-08-01), Wilson
patent: 2553616 (1951-05-01), Walls
patent: 4008530 (1977-02-01), Gager
patent: 4129951 (1978-12-01), Petrosky

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