US2008028635A1PendingUtilityA1

Three-Dimensional Cross-Linked Foam for Uppers of Shoes

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Individually held — no corporate assignee on recordPriority: Dec 31, 2004Filed: Apr 21, 2005Published: Feb 7, 2008
Est. expiryDec 31, 2024(expired)· nominal 20-yr term from priority
Inventors:Jang Won Park
B29D 35/126A43B 7/08B29C 44/08B29D 35/04A43B 23/042B29D 35/0054B29D 35/146B29D 35/02B29C 44/04A43D 11/00B29C 44/02
55
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Claims

Abstract

The present invention provides a three-dimensional cross-linked foam for uppers of shoes that comprises a cross-linked foam body having a shape corresponding to a last; at least one inner cavity structure formed in the cross-linked foam body, the inner cavity structure defined by an internally formed surface of the cross-linked foam body; and filler injected into the inner cavity structure. The cross-lined foam of the present invention can more effectively protect the feet and increase a fitting feeling and a supporting power without additional components added to the cross-linked foam. The cross-linked foam of the present invention may further have an air ventilation and waterproof function.

Claims

exact text as granted — not AI-modified
1 - 24 . (canceled)  
   
   
       25 . A three-dimensional cross-linked foam for uppers of shoes, comprising: 
 a cross-linked foam body having a shape corresponding to a last; and    at least one inner cavity structure formed in the cross-linked foam body, the inner cavity structure defined by an internally formed surface of the cross-linked foam body.    
   
   
       26 . The cross-linked foam according to claim  24 , further comprises an air passage connected to the at least one inner cavity structure.  
   
   
       27 . The cross-linked foam according to claim  24 , wherein the at least one inner cavity structure is filled with gas.  
   
   
       28 . The cross-linked foam according to claim  24 , wherein unevenness is formed on the cross-linked foam body.  
   
   
       29 . The cross-linked foam according to claim  24 , wherein plural inner cavity structures are formed in the cross-linked foam body.  
   
   
       30 . The cross-linked foam according to  claim 29 , wherein all or some of the plural inner cavity structures are connected to each other.  
   
   
       31 . The cross-linked foam according to  claim 30 , further comprises an air passage connected to at least one of the plural inner cavity structures.  
   
   
       32 . The cross-linked foam according to  claim 30 , wherein at least one of the plural inner cavity structures is filled with gas.  
   
   
       33 . The cross-linked foam according to  claim 29 , wherein the plural inner cavity structures form groups consisting of connected inner cavity structures.  
   
   
       34 . The cross-linked foam according to  claim 33 , further comprises an air passage connected to at least one of the plural inner cavity structures.  
   
   
       35 . The cross-linked foam according to  claim 33 , wherein at least one of the plural inner cavity structures is filled with gas.  
   
   
       36 . A three-dimensional cross-linked foam for uppers of shoes, comprising: 
 a cross-linked foam body having a shape corresponding to a last;    at least one inner cavity structure formed in the cross-linked foam body, the inner cavity structure defined by an internally formed surface of the cross-linked foam body; and    filler introduced into the inner cavity structure.    
   
   
       37 . The cross-linked foam according to  claim 36 , wherein unevenness is formed on the cross-linked foam body.  
   
   
       38 . The cross-linked foam according to  claim 36 , wherein the filler includes at least one material selected from gas, liquid and same material as or different material from the cross-linked foam body.  
   
   
       39 . The cross-linked foam according to  claim 38 , wherein the filler is introduced into a housing that is put into close contact with the internally formed surface.  
   
   
       40 . The cross-linked foam according to  claim 36 , wherein plural inner cavity structures are formed in the cross-linked foam body and at least one of the plural inner cavity structures is filled with the filler.  
   
   
       41 . The cross-linked foam according to  claim 40 , wherein the filler includes at least one material selected from gas, liquid and same material as or different material from the cross-linked foam body.  
   
   
       42 . The cross-linked foam according to  claim 41 , wherein the filler is introduced into a housing that is put into close contact with the internally formed surface.  
   
   
       43 . The cross-linked foam according to  claim 40 , further comprises an air passage connected to at least one of the plural inner cavity structures.  
   
   
       44 . The cross-linked foam according to  claim 43 , wherein the filler includes at least one material selected from gas, liquid and same material as or different material from the cross-linked foam body.  
   
   
       45 . The cross-linked foam according to  claim 44 , wherein the filler is introduced into a housing that is put into close contact with the internally formed surface.  
   
   
       46 . The cross-linked foam according to  claim 40 , wherein all or some of the inner cavity structures are connected to each other.  
   
   
       47 . The cross-linked foam according to  claim 46 , wherein the filler includes at least one material selected from gas, liquid and same material as or different material from the cross-linked foam body.  
   
   
       48 . The cross-linked foam according to  claim 47 , wherein the filler is introduced into a housing that is put into close contact with the internally formed surface.  
   
   
       49 . The cross-linked foam according to  claim 46 , further comprises an air passage connected to at least one of the plural inner cavity structures.  
   
   
       50 . The cross-linked foam according to  claim 40 , wherein the plural inner cavity structures form groups consisting of connected inner cavity structures.  
   
   
       51 . The cross-linked foam according to  claim 50 , wherein the filler includes at least one material selected from gas, liquid and same material as or different material from the cross-linked foam body.  
   
   
       52 . The cross-linked foam according to  claim 51 , wherein the filler is introduced into a housing that is put into close contact with the internally formed surface.  
   
   
       53 . The cross-inked foam according to  claim 50 , further comprises an air passage connected to at least one of the plural inner cavity structures.  
   
   
       54 . A three-dimensional cross-linked foam for uppers of shoes, comprising: 
 a cross-linked foam body having a shape corresponding to a last.    
   
   
       55 . The cross-linked foam according to  claim 54 , wherein at least one air passage is formed in the cross-linked foam body.  
   
   
       56 . The cross-linked foam according to  claim 54 , wherein unevenness is formed on the cross-linked foam body.

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