Articulated shoe sole

Details Articulated shoe sole Articulated shoe sole

1980-05-16

1982-01-12

Lawson, P. D.

Boots, shoes, and leggings

Soles

Rubber

36 31, 36 33, A43B 1304, A43B 1308, A43B 1314

Patent

active

043098320

ABSTRACT:
A flexible shoe, preferably of the sport shoe variety, includes a resilient sole which incorporates one or two transverse hinge joints. The principal hinge joint extends across the ball of the foot and preferably passes under the first metatarso-phalangeal joint. An optional second hinge joint extends across the anterior heel region of the foot. Both hinge joints function to keep the effective sole levers short and thereby permit the foot to function in a natural and comfortable manner. The shank of the sole may be longitudinally stiffened for additional stability.

REFERENCES:
patent: 2352532 (1944-06-01), Ghez et al.
patent: 4130947 (1978-12-01), Denu
patent: 4213255 (1980-07-01), Olberz et al.
patent: 4262435 (1981-04-01), Block et al.

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