Shoe sole with air ventilation device

Abstract

A show sole includes a bellows portion located at the heel section of the sole and compressible space is defined in the bellows portion. A spring unit is located in the compressible space. At least one escape hole is defined through a wall of the bellows portion. An insole is mounted to the sole and seals the compressible space. Multiple pipes extend from the compressible space and each has two open ends. One of the two open ends of each pipe communicates with the compressible space. When the compressible space is compressed, the air in the compressible space flows through the pipes and the escape hole. When the force is released from the compressible space, the air outside the shoe is sucked into the compressible space.

1 . A sole for a shoe, comprising:
 a front section, a middle section and a heel section, a sidewall extending from upward from an outer periphery thereof and including a bellows portion which is located at heel section of the sole, a compressible space defined in the bellows portion and a spring unit located in the compressible space, at least one escape hole defined through a wall of the bellows portion, and   multiple pipes extending from the compressible space and each including two open ends, one of the two open ends of each pipe communicating with the compressible space.   
     
     
         2 . The sole as claimed in  claim 1 , wherein the pipes are located axially in the sole and ended at a front section of the sole. 
     
     
         3 . A sole  1  for a shoe, comprising:
 a front section, a middle section and a heel section, the middle section and the heel section including a top portion and a lower portion extending from the middle section and a wedge-shaped space defined between the top and lower portion, the wedge-shaped space located at the heel section of the sole, multiple pipes located in the front section and each having two open ends, multiple first holes defined in a conjunction portion of the top and lower portions and communicating with the pipes, and   a compressible part securely engaged with the wedge-shaped space and including a hollow interior, at least one escape hole defined through a wall of the compressible part, a spring unit located in the compressible part, multiple second holes defined through a front end of the compressible part and being communication between the first holes and the hollow interior.   
     
     
         4 . The sole as claimed in  claim 3 , wherein the pipes are located axially in the sole and ended at a front section of the sole.