Shoe with contoured sole

Details Shoe with contoured sole Shoe with contoured sole

1990-03-09

1991-02-05

Schroeder, Werner H.

Boots, shoes, and leggings

Soles

Rope

36 59C, A43B 1314

Patent

active

049893491

ABSTRACT:
A construction for a shoe, particularly an athletic shoe such as a running shoe, includes a sole having a load-bearing sole portion and a contoured edge stability portion. The edge portion of the sole is contoured and defined by an arc of a circle having a radius equal to the thickness of the sole portion of the sole and its center at a point lying on the plane of the upper surface of the sole thickness. However, the contour varies as the thickness of the sole portion varies due to heel lift, for example. Thus, the outer contour of the edge portion of the sole has at least a portion which lies along a theoretically ideal stability plane for providing natural stability and efficient motion of the shoe and foot in an inverted and everted mode.

REFERENCES:
patent: 288127 (1983-11-01), Shepard
patent: 1289106 (1918-12-01), Bullock
patent: 3308560 (1967-03-01), Jones
patent: 4083125 (1978-04-01), Benseler
patent: 4128951 (1978-12-01), Tansill
patent: 4141158 (1979-02-01), Benseler
patent: 4449306 (1984-05-01), Cavanaugh
patent: 4557059 (1985-12-01), Misevich et al.
Benno M. Nigg and M. Morlock, "The Influence of Lateral Heel Flare of Running Shoes on Pronation and Impact Forces", Medicine and Science in Sports and Exercise, vol. 19, No. 3 (1987), pp. 294-302.

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