Running shoe sole construction

Details Running shoe sole construction Running shoe sole construction

1982-10-13

1984-05-22

Schroeder, Werner H.

Boots, shoes, and leggings

Soles

Laminated

36 32R, 36 35R, D 2310, A43B 1304, A43B 1312, A43B 1318

Patent

active

044493061

ABSTRACT:
An otherwise conventionally constructed running shoe sole is provided with a rounded border having a radius of curvature of about 20 mm only along approximately the rear 50% of the length of the outer side of the midsole and heel edge layers, the remaining border area being provided with a conventional flaring or the like with the exception of a transition zone. In accordance with a modified embodiment, a convexly curved shock-absorber bar is incorporated into the sole and is outwardly covered by a layer of softer material which is provided with the outer curvature, and which increases the cushioning capacity of the sole during initial heel strike.

REFERENCES:
patent: 3221422 (1965-12-01), Lemeshnik
patent: 3664040 (1972-05-01), Ouimet
patent: 4240241 (1980-12-01), Sigle et al.
patent: 4241523 (1980-12-01), Daswick
patent: 4255877 (1981-03-01), Bowerman
patent: 4309832 (1982-01-01), Hunt

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