Spring plate shoe

Details Spring plate shoe Spring plate shoe

1990-04-18

1991-10-01

Meyers, Steven N.

Boots, shoes, and leggings

Boots and shoes

Having shoe-reinforcing plate

36114, 36 30R, A43B 1312, A43B 1324

Patent

active

050521306

ABSTRACT:
An athletic shoe with a spring plate in combination with a viscoelastic midsole, such spring plate extending substantially the length of the midsole from the medial side of the heel through the arch where the spring plate is curvilinear and on the exterior of the shoe, through the metatarsal head area and beneath the toes. The spring plate is of multiple layers, each of parallel carbon fibers embedded in polymer, the fibers being at acute angles in successive layers, in symmetry. The stiffness of the plate is anisotropic, being greater longitudinally than laterally. The thickness of the plate forward of the metatarsal break line is half that of the plate rearwardly of the break line.

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"the Spring in Your Step", by R. McNeill Alexander, New Scientist, Apr. 30, 1987.
"Shoes With Rebound Effect Soles", p. 37, American Journal of Physiological Medicine, Feb. 1987.

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