Natural ventilation type footwear

Boots – shoes – and leggings – Boots and shoes – Ventilated

Patent

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Details

36 3R, A43B 706

Patent

active

048379484

ABSTRACT:
An article of foorwear comprising an improved insole, a vent frame member established in the openings provided on the both sides of the footwear, respectively, including a groove defined along the inward edge of a boundary protrusion thereof, a plurality of vent holes and blind parts in intermittently spaced relationship with each other within the boundary protrusion having a shutter member slidably inserted in the groove so that the vent holes of the frame member can be easily and convienently opened and closed by means of the shutter for circulating outside air into the footwear via the vent holes, a space portion formed between the inner layer of the footwear and a stepped portion formed along the outer periphery of the insole, lateral passages and upper apertures of the insole, whereby allowing exchange of humidity, temperature between the inside and outside of the footwear to provide a better and more comfortable environment for the wearer's foot.

REFERENCES:
patent: 1213941 (1917-01-01), Patrick
patent: 1394348 (1921-10-01), Pietrowski
patent: 2239211 (1941-04-01), Wycie
patent: 2614339 (1952-10-01), Herceg
patent: 3012342 (1961-12-01), Ramirez
patent: 3383782 (1968-05-01), McGinnity
patent: 3426455 (1969-02-01), Drago
patent: 3624930 (1971-12-01), Johnson et al.
patent: 4438573 (1984-03-01), McBarron
patent: 4742625 (1988-05-01), Sydor et al.

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