Airbag buffer for footwear

Abstract

An airbag buffer for footwear includes a sole and an airbag. The sole has a plurality of air passageways. The airbag is arranged in the sole and has an air flowing section between the airbag and the sole and communicating to the air passageways. The air within the sole is forced to flow into the air flowing section through the air passageways when the sole is pressed. The air flowed into the air flowing section can flow back to the sole through the air passageways when the pressure exerted to the sole is relieved. Therefore, the air within the footwear can uniformly flow along front-and-back and left-and-right directions as the user walks. The uniform and omni-directional flow of air makes a comfortable feeling to user.

What is claimed is:  
     
         1 . An airbag buffer for footwear, comprising 
 a sole having a plurality of air passageways; and    an airbag arranged in the sole and having an air flowing section between the airbag and the sole and communicating to the air passageways.    
     
     
         2 . The airbag buffer for footwear as in  claim 1 , wherein the sole has an accommodating chamber, the airbag is placed within the accommodating chamber and integrally formed with the sole.  
     
     
         3 . The airbag buffer for footwear as in  claim 1 , wherein the sole comprises an outer base having the accommodating chamber, a middle base atop the outer base and having a plurality of air passageways, a padding atop the middle base and having a plurality of air passageways communicating with the plurality of air passageways of the middle base.  
     
     
         4 . The airbag buffer for footwear as in  claim 1 , wherein the airbag comprises a paw section and a heel section, the air flowing section being provided among the paw section, the heel section and the sole.  
     
     
         5 . The airbag buffer for footwear as in  claim 1 , wherein the airbag extends in an area corresponding to a distribution of the air passageways.  
     
     
         6 . The airbag buffer for footwear as in  claim 1 , wherein the sole has an accommodating chamber, the airbag comprises a paw section and a heel section and is assembled into the accommodating chamber of the sole, the airbag is surrounded by an annulus air ring, the air flowing section is arranged among the sole, the paw section, the heel section and the annulus air ring.  
     
     
         7 . The airbag buffer for footwear as in  claim 6 , wherein the sole has a packing layer to shield the air flowing section.  
     
     
         8 . The airbag buffer for footwear as in  claim 7 , wherein the packing layer is made of polyvinyl chloride (PVC).  
     
     
         9 . The airbag buffer for footwear as in  claim 1 , wherein the airbag has an air flowing section, the air flowing section communicated to the air passageways through a top portion thereof and communicated to an external air through a bottom portion thereof.