Insole

Abstract

An insole includes a supporting layer, a buffer unit, a cloth layer, a foam layer and a leather layer orderly superposed together. The supporting layer is formed with an intermediate portion, an arch portion and a heel portion for corresponding with the sole of a person's foot. The buffer unit consists of a first buffer material to be combined with the arch portion and a second buffer material to be engaged with the heel portion. By so designing, the intermediate portion, the arch portion and the heel portion of the supporting layer of the insole can correct and support a user's foot, and the buffer unit can produce effects of shock absorption and buffering. In short, the insole of this invention is not only able to correct a user's foot shape but also comfortable in wearing.

What is claimed is: 
     
         1 . An insole comprising:
 a supporting layer bent into a curved surface for corresponding with a sole of a person's foot, said supporting layer formed with an intermediate portion, an arch portion and a heel portion, said intermediate portion provided with a bulgy block, said heel portion bored with an insert hole passing through a topside and an underside of said supporting layer;   a buffer unit positioned on a topside of said supporting layer, said buffer unit composed of a first buffer material and a second buffer material, said first buffer material combined with said arch portion, said second buffer material engaged in said insert hole of said supporting layer;   a cloth layer superposed on said buffer unit;   a foam layer superposed on said cloth layer; and   a leather layer superposed on said foam layer.   
     
     
         2 . The insole as claimed in  claim 1 , wherein said second buffer material has a lower side protruding out of said insert hole and positioned lower than an underside of said supporting layer. 
     
     
         3 . The insole as claimed in  claim 1 , wherein said second buffer material has an underside provided with a plurality of anti-skid recesses. 
     
     
         4 . The insole as claimed in  claim 1 , wherein said second buffer material has a circumferential side formed with a flange that is larger than said insert hole in diameter, said flange resisting against a topside of said supporting layer. 
     
     
         5 . The insole as claimed in  claim 1 , wherein said supporting layer is made of nylon. 
     
     
         6 . The insole as claimed in  claim 1 , wherein said first buffer material is made of emulsion while said second buffer material is made of thermoplastic polyurethane (TPU). 
     
     
         7 . The insole as claimed in  claim 1 , wherein said cloth layer is made of fine-grained cloth. 
     
     
         8 . The insole as claimed in  claim 1 , wherein said foam layer is made of emulsion. 
     
     
         9 . The insole as claimed in  claim 1 , wherein said leather layer is made of leather. 
     
     
         10 . The insole as claimed in  claim 1 , wherein said cloth layer is bored with a plurality of first ventilating holes, while said foam layer is bored with a plurality of second ventilating holes.