Ventilation shoe

Abstract

A ventilation shoe has a sole and a pad placed on top of the sole and provided with through holes. The sole defines therein a chamber in a rear portion thereof, at least one bore in a side face defining the chamber so as to communicate with the chamber, at least one passage and trenches in a front portion thereof to communicate with the chamber by means of the at least one passage. A pouch is received in the chamber and has at least one inlet communicating with the at least one bore and at least one outlet communicating with the at least one passage. The at least one inlet has a first unidirectional valve and the at least one outlet has a second unidirectional valve. Thereby air is circulated in the sole.

What is claimed is:  
     
         1 . In a shoe having a sole and a pad placed on top of the sole and provided with through holes, wherein the improvements comprise: the sole defining therein a chamber in a rear portion thereof, at least one bore in a side face defining the chamber so as to communicate with the chamber, at least one passage and trenches in a front portion thereof to communicate with the chamber by means of the at least one passage; 
 a pouch received in the chamber and having at least one inlet communicating with the at least one bore and at least one outlet communicating with the at least one passage,    the trenches being so configured that a communication exists between the through hoes of the pad and the trenches,    the at least one inlet having a first unidirectional valve which allows air to be pumped in the pouch and the at least one outlet having a second unidirectional valve which allows air in the pouch to be pumped to the at least one passage and therefore the trenches,    thereby air is circulated in the sole.    
     
     
         2 . The shoe as claimed in  claim 1 , wherein there are two bores oppositely defined in the side face defining the chamber and two inlets each communicating with a corresponding one of the bores.  
     
     
         3 . The shoe as claimed in  claim 2 , wherein there are two outlets in the pouch and two passages each communicating with a corresponding one of the outlets.