shoe having triple-hardness midsole, outsole, and upper with support for preventing an overpronation

Abstract

This invention discloses a shoe comprising a midsole having triple-hardness structures with different hardness to each other, a bridge formed from the midsole to upper of outsole, the bridge being formed onto the outsole and having one or more legs, an a mesh-type frame formed on the upper of shoe to support the subtalar articulation, wherein the bridge is formed only at the inside of shoe, and the triple-hardness structures comprises a low-hardbness layer, a middle-hardbness layer and a high-hardbness layer.

1 . A shoe comprising a midsole having triple-hardness structures with different hardness to each other;
 a bridge formed from the midsole to upper of outsole, the bridge being formed onto the outsole and having one or more legs; and   a mesh-type frame formed on the upper of shoe to support the subtalar articulation,   wherein the bridge is formed only at the inside of shoe, and the triple-hardness structures comprises a low-hardbness layer, a middle-hardbness layer and a high-hardbness layer.   
     
     
         2 . The shoe according to  claim 1 , wherein the triple-hardness structure with different hardness to each other are formed to have higher hardness toward the front from the rear of shoe. 
     
     
         3 . The shoe according to  claim 1 , the midsole is formed of polyurethane or polivinyl acetate. 
     
     
         4 . The shoe according to  claim 1 , further comprising a solid portion formed of polymer material to support the inner of foot, the solid portion being formed throughout the inside of middle portion of uppers of the shoe. 
     
     
         5 . The shoe according to  claim 1 , wherein the mesh-type frame is formed of polymer materials. 
     
     
         6 . The shoe according to  claim 1 , wherein the mesh-type frame is formed at the outside of shoe and around shoestring supports for tightening up a shoestring by putting it into the supports. 
     
     
         7 . The shoe according to  claim 1 , further comprising cushioning parts, the cushioning parts having a lower cushion attached onto the outsole and an upper cushion attached onto the lower cushion, and the upper cushion having the hardness higher than the lower cushion. 
     
     
         8 . The shoe according to  claim 1 , wherein the triple-hardness structure is comprised of a low-hardness layer having 47 to 52, a middle-hardness layer having 53 to 58, and a high-hardness layer having 59 to 64, in the shore hardness, respectively. 
     
     
         9 . The shoe according to  claim 1 , wherein the triple-hardness structure and two cushions are different to each other in view of the shore hardness. 
     
     
         10 . The shoe according to  claim 1 , wherein the mesh-type frame is formed by elongated elements of hard nylon injection piece.