Elastic Shoes For Cushioning Against Impact

Abstract

The invention relates to a shoe provided with an outsole including an anti-distorting portion formed to extend from a rear portion to a front portion of the outsole to prevent the shoe from distorting, a shock-absorbing portion disposed at the rear portion of the outsole to absorb the external force applied to the heel portion of the wearer's foot when landing, and an elasticity-enhancing portion disposed at the front portion of the outsole in order to supplement actuating force using elastic force when leaving the ground. The shoe is advantageous in that it is possible to prevent the shoe from distorting while actions of landing and leaving the ground are repeated, to decrease the shock of the maximum load applied to the heel portion of the wearer's foot, and to supplement the actuating force with elastic recovery force when advancing.

1 . A shock-decreasing elastic shoe having an outsole, comprising:
 an anti-distorting portion extending from a rear portion to a front portion of an upper surface of the outsole in order to prevent a shoe from distorting by landing and ground-leaving actions which are repeatedly performed;   a shock-absorbing portion disposed at a rear portion of the outsole in order to absorb external force applied to a heel portion of a wearer's foot when landing; and   an elasticity-enhancing portion disposed at a front portion of the outsole in order to enhance actuating force for walking by using elastic force when leaving a ground.   
     
     
         2 . The shock-decreasing elastic shoe according to  claim 1 , wherein the anti-distorting portion is a leaf spring having an arch shape. 
     
     
         3 . The shock-decreasing elastic shoe according to  claim 2 , wherein the leaf spring includes a rear leaf spring which is attached to the upper surface of the outsole and has a plate shape having a width smaller than a length thereof, and a lift-assisting leaf spring which is formed to extend from the rear leaf spring and is curved from a groove which is in a midway position of the shoe to the front portion so as to generate elastic reaction force using a load of a wearer's weight. 
     
     
         4 . The shock-decreasing elastic shoe according to  claim 2 , wherein the leaf spring is made of steel. 
     
     
         5 . The shock-decreasing elastic shoe according to  claim 1 , wherein the shock-absorbing portion has a pad shape having a predetermined height. 
     
     
         6 . The shock-decreasing elastic shoe according to  claim 1 , wherein the shock-absorbing portion is made of polyurethane or EVA. 
     
     
         7 . The shock-decreasing elastic shoe according to  claim 1 , wherein the shock-absorbing portion has a hardness of 30 A to 40 A. 
     
     
         8 . The shock-decreasing elastic shoe according to  claim 1 , wherein the elasticity-enhancing portion includes an elastic member provided with a plurality of deformable penetration holes which are formed to penetrate through a body of the elastic member in a width direction and to terminate at left and right side ends of the body of the elastic member, and which are arranged in a length direction of the body of the elastic member, and a lift-assisting leaf spring formed to extend from a midway portion of the upper surface to the front portion of the outsole to generate elastic recovery force. 
     
     
         9 . The shock-decreasing elastic shoe according to  claim 8 , further comprising a mid-sole receiving the shock-absorbing portion and the elastic member, the mid-sole being provided on the outsole. 
     
     
         10 . The shock-decreasing elastic shoe according to  claim 9 , wherein the mid-sole has a penetration hole, in which the elastic member is inserted, in a front portion thereof and a receiving portion, which is concave, in a rear bottom portion.