Insole of shoe for reducing shock and humidity

Details Insole of shoe for reducing shock and humidity Insole of shoe for reducing shock and humidity

1997-09-05

1998-09-22

Dayoan, B. C.

Boots, shoes, and leggings

Insoles

36 3B, A43B 1338, A43B 706

Patent

active

058096655

ABSTRACT:
An insole for a shoe is made of a resin having elasticity. The thickness of the insole increases gradually from the portion corresponding to the arch of the foot toward the heel portion to give a slope on the insole. In the bottom of the insole, corresponding to the slope, a recess is provided and ventilation holes are pierced between the recess and the upper surface of the insole. Other ventilation holes are provided through the insole in the area from a toetip to the arch of the foot portion and are connected to the recess through grooves provided in the bottom surface of the insole.

REFERENCES:
patent: 4215492 (1980-08-01), Sandmeier
patent: 4619055 (1986-10-01), Davidson
patent: 4776110 (1988-10-01), Shiang
patent: 5010661 (1991-04-01), Chu
patent: 5068983 (1991-12-01), Marc
patent: 5488786 (1996-02-01), Ratay
patent: 5675914 (1997-10-01), Cintron

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