Boots – shoes – and leggings – Soles – Cushion
Patent
1988-08-05
1990-04-24
Watkins, Donald
Boots, shoes, and leggings
Soles
Cushion
36 29, A43B 1320, A43B 2126
Patent
active
049188380
ABSTRACT:
This is a sole with compressible shock absorbers which not only provides an improved shock absorbing function but also provides more comfort for the wearer. The shock absorbers consist of a polygonal replaceable air bellows placed in a polygonal recess on the forefoot section of the shoe and a cylindrical replaceable air cylinder placed in a circular recess on the heel section of the shoe. The air cylinder and air bellows are made of an integrally resilient air-tight material such that, during exercise, the shock absorbers absorb and then return the energy in a controlled upward direction, by way of the bellows-type body and the friction caused between the inside wall of the recess and the bellows itself. Moreover, since the shock absorbers can be placed easily by hand, the wearer can adjust the shoes in line with his weight and type of sport performed. The uses of the shoe are therefore maximized because the air cylinder and air bellows will continue to function even after the outer sole has experienced considerable wear and tear.
REFERENCES:
patent: 4229889 (1980-10-01), Petrosky
patent: 4577417 (1986-03-01), Cole
patent: 4680876 (1987-07-01), Peng
patent: 4768295 (1988-09-01), Ito
patent: 4779359 (1988-10-01), Famolare
Far East Athletics Ltd.
Watkins Donald
LandOfFree
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