Sole and means for airing shoes

Abstract

The combination of the sole (1)—equipped in the upper front-middle portion with the broad shaped cavity (2) and with the thin duct (3) therewith said broad shaped cavity (2) is brought in communication with the outside through the unidirectional valve (4)—of the stretching structure (5) with high change in volume implemented with flexible material with high elasticity, and of the insole (6) made of waterproof material equipped both with deformation (7) apt to cooperate with the broad shaped cavity (2) in the sole (1), to originate, under the action of the stretching structure (5), a pad-like projecting shaping, both with one or more holes (8), at said deformation (7) and in a position so as to be clogged by the foot during walking.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to a sole and to means for airing the shoe thereto they belong, aimed at causing the air circulation therein during walking. [0003] 2. Description of the Related Art [0004] Shoes equipped with soles with cavities are known which, during walking, are alternatively compressed and then released, so as to act as pumps aimed at maintaining an air circulation inside each shoe in order to refresh the foot wearing it. [0005] The known air-circulating shoes in a case are implemented with flexible materials and have broad cavities on the heel (U.S. Pat. No. 5,138,775) which, due to the flexibility of the material therewith it is implemented, during walking they carry out a pump effect and force the air contained in such cavities to flow from the heel towards the front side of the shoe and then, through thin holes distributed in the insole, to flow towards the inside of the shoe in order to reach the foot...

AI Technical Summary

Benefits of technology

[0013] Then, an object of the present invention is to implement a sole and means for airing shoes structured and shaped so as to increase considerably the air flow exchanged with the outside of such shoes in order to obtain a considerable refreshing effect on the feet of the wearer.

[0015] At last, another object is to implement the means mentioned above individually simple in order to make them cheap and surely operating.

[0018] a stretching structure with high change in volume, implemented with flexible material with high elasticity;

[0020] Such invention results advantageous because is structurally simple, surely operating and cheap. It allows considerable changes in air pressure within the broad shaped cavity when the stretching structure therein passes from the relaxed state to the compressed state, by determining the sure activation of the unidirectional intercepting valve and an air breath outwards and, consequentially, when the foot pressing action on the insole's pad-like shaped portion ceases, an air sucking from the shoe's inside towards said broad cavity shaped in the sole, thus producing a refreshing effect in the foot wearing the shoe itself.

Problems solved by technology

Secondly, the lack or the minimum value of the air exchanges with the outside is due, instead, to the resistance met by the air itself upon flowing outwards and / or towards the chamber delimited by the upper wherein the foot to be refreshed is housed.

Images