Cross-Linked Foam Having a Shock-Absorbing Means for an Insole of Shoes

Abstract

The present invention provides a cross-linked foam having a shock-absorbing means for an insole of shoes comprises a cross-linked foam body; an inner cavity structure formed in the cross-linked foam body, the inner cavity structure formed simultaneously with the cross-linked foam body; and a filler in the inner cavity structure. The filler may be filled into and sealed by a housing that is formed in the inner cavity structure. According to the present invention, the shock-absorbing means having a greater thickness than the cross-linked foam body can easily be formed in the cross-linked foam body and the inner cavity structure can be shaped along a shape of a bare foot to offer more comfortable fitting.

1 - 13 . (canceled)  
     
     
         14 . A cross-linked foam for an insole for shoes, comprising: 
 a cross-linked foam body having at least one inner cavity structure, the inner cavity structure formed in the cross-linked foam body;    a housing in the inner cavity structure, the housing filled with filler.    
     
     
         15 . The cross-linked foam according to  claim 14 , wherein the inner cavity structure having the housing is formed in the cross-linked foam body at a position corresponding to a metatarsus of a foot.  
     
     
         16 . The cross-linked foam according to  claim 15 , wherein unevenness is formed on a covering portion of the inner cavity structure.  
     
     
         17 . The cross-linked foam according to  claim 14 , wherein the filler is selected from at least one of gas, liquid and material that is same as or different from the cross-linked foam body.  
     
     
         18 . The cross-linked foam according to  claim 14 , wherein the cross-linked foam body further has at least one inner cavity structure other than the inner cavity structure having the housing.  
     
     
         19 . The cross-linked foam according to  claim 18 , wherein unevenness is formed on a covering portion of at least one of the inner cavity structures.  
     
     
         20 . The cross-linked foam according to  claim 18 , wherein the at least one inner cavity structure other than the inner cavity structure having the housing is filled with filler.  
     
     
         21 . The cross-linked foam according to  claim 20 , wherein the filler is selected from at least one of gas, liquid and material that is same as or different from the cross-linked foam body.  
     
     
         22 . The cross-linked foam according to  claim 21 , wherein the filler is filled into a housing and the housing is disposed in the inner cavity structure.  
     
     
         23 . The cross-linked foam according to  claim 14 , wherein the cross-linked foam body further has a plurality of inner cavity structures other than the inner cavity structure having the housing.  
     
     
         24 . The cross-linked foam according to  claim 23 , wherein at least one of the inner cavity structures other than the inner cavity structure having the housing is filled with filler.  
     
     
         25 . The cross-linked foam according to  claim 24 , wherein the filler is selected from at least one of gas, liquid and material that is same as or different from the cross-linked foam body.  
     
     
         26 . The cross-linked foam according to  claim 25 , wherein the filler is filled into a housing and the housing is disposed in the cavity structure.  
     
     
         27 . The cross-linked foam according to  claim 23 , wherein unevenness is formed on a covering portion of at least one of the inner cavity structures other than the inner cavity structure having the housing.  
     
     
         28 . The cross-linked foam according to  claim 23 , wherein all or some of the plural inner cavity structures are connected to each other.  
     
     
         29 . The cross-linked foam according to  claim 28 , wherein at least one of the inner cavity structures other than the inner cavity structure having the housing is filled with filler.  
     
     
         30 . The cross-linked foam according to  claim 29 , wherein the filler is selected from at least one of gas, liquid and material that is same as or different from the cross-linked foam body.  
     
     
         31 . The cross-linked foam according to  claim 30 , wherein the filler is filled into a housing and the housing is disposed in the inner cavity structure.