Shoes having ventilation devices

Abstract

A ventilation device is provided in a shoe. The device includes a porous member fitted in a receiving means in a rear of the insole, an intake pipe interconnected between a first check valve and the porous member, and a discharge pipe interconnected between a second check valve and porous member. Foul air is driven from porous member to the outside through the intake pipe and second check valve when the porous member is compressed by a foot. Conversely, fresh air is drawn into the porous member from the outside through the first check valve and intake pipe when the porous member is returned from the compressed state to an original state as the foot stops exerting force thereon.

What is claimed is:  
     
         1 . A structure of a ventilating insole, wherein said ventilating insole comprises fore, arch, and heel portions, comprising: 
 a bladder at said heel portion of said ventilating insole;    an air intake passage coupled with said bladder, wherein said air intake passage is in a first surface of said ventilating insole;    an intake valve coupled with said air intake passage;    an air discharge passage coupled with said bladder, wherein said air discharge passage is in a second surface of said ventilating insole; and    a discharge valve coupled with said discharge passage.    
     
     
         2 . The structure according to  claim 1 , wherein said intake passage is in an upper surface os said ventilating insole.  
     
     
         3 . The structure according to  claim 1 , wherein said discharge passage is in a lower surface of said ventilating insole.  
     
     
         4 . The structure according to  claim 1 , wherein said bladder further comprises an elastic means for providing said bladder with elasticity.  
     
     
         5 . The structure according to  claim 1 , further comprising at least one ventilating capillary opening on said second surface of said ventilating insole, wherein said ventilating capillary opening is in communication with said discharge passage.  
     
     
         6 . The structure according to  claim 1 , wherein said intake valve is a one-way valve.  
     
     
         7 . The structure according to  claim 1 , wherein said discharge valve is a one-way valve.  
     
     
         8 . The structure according to  claim 1 , wherein said air intake passage is at said arch portion of said ventilating insole.  
     
     
         9 . The structure according to  claim 1 , further comprising a cover layer on the second surface of said ventilating insole.