Insole for rock climbing shoe

Details Insole for rock climbing shoe Insole for rock climbing shoe

1977-02-15

1978-01-31

Guest, Alfred R.

Boots, shoes, and leggings

Insoles

A43B 1338

Patent

active

040707709

ABSTRACT:
An insole, for a rock climbing shoe, formed of a single piece of synthetic plastic material to follow the anatomical shape of the wearer's foot, including a first portion of constant thickness in the longitudinal direction from the heel for a predetermined distance, and a second portion extending in prolongation of the first portion and being of linearly decreasing thickness down to a minimum value at the toe of the insole, so that the insole displays a differential flexibility in the longitudinal direction, with a maximum of flexibility near the toe.

REFERENCES:
patent: 1807341 (1931-05-01), Messler
patent: 2403329 (1947-12-01), Adler et al.
patent: 2581864 (1952-01-01), Kaufmann
patent: 2635363 (1953-04-01), Dorgin
patent: 3426455 (1969-02-01), Drago

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