Shoe sole which affords a resilient, shock-absorbing impact

Details Shoe sole which affords a resilient, shock-absorbing impact Shoe sole which affords a resilient, shock-absorbing impact

1987-03-20

1988-05-31

Levy, Stuart S.

Boots, shoes, and leggings

Soles

Cushion

36 115, 36 33, A43B 312, A43B 1308, A43B 1318

Patent

active

047472197

ABSTRACT:
A sole for shoes is provided which provides a resilient, shock-absorbing and gradual impact of the foot with the ground. The insoles on the surface facing the foot, has a plurality of parallel, mobile blocks, supported by springs, preferably spiral springs, of different stiffness, preferably in the ratio 9-4-5 corresponding respectively to the heel, the plantar arch and the metatarsus areas, located within cavities made in the rigid or semi-rigid sole. The outsole, which is connected to the insole by glueing or molding and which faces the ground, is made of an elastomeric material and has three protrusions connected transversely and arranged the first beneath the joints, the second under the metatarsus and the third under the heel respectively. The insole group containing cavities, springs and blocks is kept in position by an annular welt fixed to the sole by screws. Any type of vamp, especially the open type suitable for sandals, may be used with the sole.

REFERENCES:
patent: 2381937 (1945-08-01), Supple
patent: 2461355 (1949-02-01), Supple
patent: 2508392 (1950-05-01), Issaly
patent: 2734286 (1956-02-01), Anson
patent: 3916538 (1975-11-01), Loseff
patent: 3936956 (1976-02-01), Famolare, Jr.
patent: 4187620 (1980-02-01), Selner
patent: 4229889 (1980-10-01), Petrosky
patent: 4262433 (1981-04-01), Hagg et al.
patent: 4322893 (1982-04-01), Halvorsen
patent: 4476638 (1984-10-01), Quacquarini et al.

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