PU sole for shoes

Abstract

The present invention is aimed to provide a shoe sole partly made of PU. The object is realized by a shoe sole having a woven surface layer attached to the surface of an EVA based base layer; a shaped hole formed through the base layer, a PU based air permeable portion filled in the shaped hole; the surface layer and PU based air permeable portion are glued together with the EVA based base layer integrally as a whole. An air permeable portion is mainly located at the middle portion to improve the air permeability thereof. The foot of the user can keep dry and more comfortable by improved air permeable portions. The present invention also has stable structure, prolonged lifetime without deformation by partly adopted PU material. It is beneficiary and advantageous for manufacturers adopting the present invention to guarantee the quality of shoe products.

1 . A shoe sole comprising: 
 A surface layer ( 1 ) and a base layer ( 2 ), the surface layer ( 1 ) is attached to the upper surface of the base layer ( 2 ); characteristic in that:    A shaped hole ( 21 ) formed through the base layer ( 2 ), an air permeable portion ( 22 ) filled in the shaped hole ( 21 ), the air permeable portion ( 22 ) combined to the base layer ( 2 ) integrally as a whole.    
   
   
       2 . A shoe sole according to  claim 1  claimed, in that, a woven material based surface layer ( 1 ) is combined to an EVA based base layer ( 2 ) by gluing, PU based air permeable portion ( 22 ) is glued together with the inner circle of the shaped hole ( 21 ) integrally as a whole.  
   
   
       3 . A shoe sole according to the  claim 1  claimed, in that, a shaped hole ( 21 ) is formed through the base layer ( 2 ), the hole is located at the middle portion of the base layer ( 2 ).  
   
   
       4 . A shoe sole according to the  claim 1  claimed, in that, a plurality of shaped holes ( 21 ) are formed through the base layer ( 2 ), the holes ( 21 ) are placed below the sole and heel portion of man's foot respectively.