Upper structure

Abstract

An upper structure adapted for engaging with a sole to form a shoe body includes a main body. The main body has an outer surface and an inner surface. The inner surface and the sole enclose an internal space. Each of at least two lateral sides of the inner surface has a gel layer. The two gel layers correspond to two longer sides of the sole respectively. Each of the gel layers is composed of a gel of non-Newtonian fluid to engage with the main body.

What is claimed is: 
     
         1 . An upper structure, adapted for engaging with a sole to form a shoe body, the upper structure including a main body, the main body having an outer surface and an inner surface, the inner surface and the sole enclosing an internal space, each of at least two lateral sides of the inner surface having a gel layer, the two gel layers corresponding to two longer sides of the sole respectively, each of the gel layers being composed of a gel of non-Newtonian fluid to engage with the main body. 
     
     
         2 . The upper structure of  claim 1 , wherein a front side of the inner surface of the main body also has one said gel layer connected to the gel layers at the lateral sides of the inner surface of the main body to be a U-shaped single piece. 
     
     
         3 . The upper structure of  claim 1 , wherein the gel of non-Newtonian fluid is polyurethane gel with multifunctional groups. 
     
     
         4 . The upper structure of  claim 1 , further including a top gel layer, the top gel layer including at least one stripe-shaped gel layer composed of said gel of non-Newtonian fluid, two ends of the at least one stripe-shaped gel layer being connected to the two lateral sides of the main body and corresponding to a top of the shoe body. 
     
     
         5 . The upper structure of  claim 4 , wherein the top gel layer includes two said stripe-shaped gel layers crossing each other in X shape. 
     
     
         6 . The upper structure of  claim 4 , wherein the top gel layer and the gel layers are connected as a single piece. 
     
     
         7 . The upper structure of  claim 1 , wherein the gel layers are engaged with the main body by adhesive. 
     
     
         8 . The upper structure of  claim 4 , wherein the top gel layer is engaged with the main body by adhesive. 
     
     
         9 . The upper structure of  claim 4 , wherein the gel of non-Newtonian fluid of the top gel layer is polyurethane gel with multifunctional groups. 
     
     
         10 . The upper structure of  claim 1 , wherein a length of each of the gel layers along the longer side of the sole is more than half a length of the longer side of the sole.