Boot insole

Abstract

A boot insole includes a sole base and multiple absorbing studs. The sole base is a flat pad that matches a foot contour and has multiple air vents. The absorbing studs are integrally and downwardly formed on a bottom surface of the sole base. The boot insole provides a shock absorbing effect without adding an air cushion to decrease the pressure on the foot, and also increases the ventilation between the foot sole and the orthopedic boot.

What is claimed is: 
     
         1 . A boot insole comprising:
 a sole base being a flat pad and having multiple air vents formed through and disposed in the sole base; and   multiple absorbing studs being elastic, being compressible, and integrally and downwardly formed on a bottom surface of the sole base.   
     
     
         2 . The boot insole as claimed in  claim 1 , wherein the sole base further includes
 two heel protecting portions respectively and upwardly formed in two opposite sides of the sole base; and   a heel side wall formed on the sole base and connected with the two heel protecting portions.   
     
     
         3 . The boot insole as claimed in  claim 1 , wherein the absorbing studs are hollow cylinders. 
     
     
         4 . The boot insole as claimed in  claim 3 , wherein the absorbing studs are divided into two groups, and the two groups of the absorbing studs are respectively disposed on a front position and a rear position on the sole base, and the diameter of the group of the absorbing studs in the rear position is larger than the diameter of the group of the absorbing studs in the front position. 
     
     
         5 . The boot insole as claimed in  claim 3 , wherein the absorbing studs are arranged in multiple rows at spaced intervals. 
     
     
         6 . The boot insole as claimed in  claim 3 , wherein each of the absorbing studs has multiple annular recesses formed around an outer surface of the absorbing stud at spaced intervals along the longitudinal direction of the absorbing stud. 
     
     
         7 . The boot insole as claimed in  claim 1 , wherein the absorbing studs are quadrilateral in cross section. 
     
     
         8 . The boot insole as claimed in  claim 7 , wherein the absorbing studs are trapezoid and the dimensions of each absorbing stud gradually reduce downwardly. 
     
     
         9 . The boot insole as claimed in  claim 7 , wherein the absorbing studs are disposed in a staggered arrangement.