Shell sole

Details Shell sole Shell sole

1976-02-13

1977-08-30

Guest, Alfred R.

Boots, shoes, and leggings

Soles

Rubber

A43B 1304

Patent

active

040444791

ABSTRACT:
Shell sole construction for footwear comprised of a sole bottom portion, an upwardly rising edge portion extending around the outer edge of the sole bottom and, optionally including a cutout or recess in the bottom of the shell sole for receiving insert bottoms, is provided with a plurality of longitudinally distributed predetermined bending zones or points along the upwardly rising edge of the shell sole in the area of the ball of the foot to achieve a reduction in the bending stress exerted on the shell sole in the region of the ball of the foot.

REFERENCES:
patent: 1735986 (1929-11-01), Wray
patent: 2527414 (1950-10-01), Hallgren

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