Method of making insole and insole made thereby

Abstract

A method of making an insole includes the steps of (a) providing a base sheet material having through holes, (b) immersing the base sheet material in a filling material for enabling the filling material to fill up the through holes, (c) baking the base sheet material to cure the filling material, (d) splitting the base sheet material to a desired thickness, (e) bonding a fabric layer to one side of the base sheet material, (f) cutting the base sheet material into semi-finished insole, (g) stamping the semi-finished insole into a finished insole where the filling material protrudes over the top and bottom sides of the base sheet material, and the fabric layer has raised portions supported on the protruded filling material corresponding to the through holes.

1 . A method of making an insole comprising the steps of: 
 (a) providing a base sheet material made of a first compound, said base sheet material having a plurality of through holes through top and bottom sides thereof;    (b) immersing said base sheet material in a fluid filling material prepared from a second compound to let said filling material fill up said through holes;    (c) baking said base sheet material filled with said filling material in a baking oven to cure said filling material;    (d) splitting said base sheet material to a desired thickness;    (e) bonding a fabric layer to a top surface of said base sheet material;    (f) cutting the fabric layer bonded base sheet material thus obtained into a semi-finished insole with a predetermined shape; and    (g) stamping said semi-finished insole to compact said base sheet material, for enabling said filling material to protrude over the top surface and a bottom surface of said base sheet material, thereby forming a plurality of raised portions at said fabric layer.    
     
     
         2 . The method as claimed in  claim 1 , wherein said first compound is ethylene vinyl acetate (EVA).  
     
     
         3 . The method as claimed in  claim 1 , wherein said second compound is latex.  
     
     
         4 . The method as claimed in  claim 1 , wherein in said step (b), the filling material is filled in a bottom die, and then said base sheet material is put in said filling material inside said bottom die, and then a press is operated to close an upper die on said bottom die to force said filling material into the through holes of said base sheet material.  
     
     
         5 . An insole comprising: 
 a base sheet material made of a first compound, said base sheet material having a plurality of through holes;    a filling material prepared from a second compound and fixedly filled in said through holes and protruding over two opposite sides of said base sheet material; and    a fabric layer covered on one side of said base sheet material, said fabric layer having a plurality of raised portions respectively supported on the protruded filling material corresponding to the through holes.