Shoe sole

Abstract

A shoe sole has a main body and at least one strip. The main body is flexible and elongated and has a through hole. The through hole is formed through the main body. The at least one strip is mounted in the through hole and is detachably connected with the main body. Flexibility of the main body is higher than that of the at least one strip. By replacing the strips having different flexibilities, the flexibility of the shoe sole is adjustable.

What is claimed is: 
     
         1 . A shoe sole comprising:
 a flexible and elongated main body having
 a front end; 
 a rear end opposite to the front end of the main body; and 
 an elongated through hole formed through the main body; and 
   at least one strip mounted in the through hole and detachably connected with the main body, wherein flexibility of the main body is higher than that of the strip.   
     
     
         2 . The shoe sole as claimed in  claim 1 , wherein
 the through hole extends toward the front end and the rear end of the main body; and   a number of the at least one strip is one, and the strip is elongated and extends toward the front end and the rear end of the main body.   
     
     
         3 . The shoe sole as claimed in  claim 2 , wherein
 the main body has a slot formed in the main body and communicating with a front side of the through hole; and   the strip has
 a front end inserted into the slot; and 
 a rear end opposite to the front end of the strip and connected with the main body by a screw. 
   
     
     
         4 . The shoe sole as claimed in  claim 3 , wherein
 the slot has a T-shaped cross section and the strip has a T-shaped cross section.   
     
     
         5 . The shoe sole as claimed in  claim 4 , wherein
 the slot has
 a central section; and 
 a groove located at the central section of the slot and formed through a bottom surface of the main body; 
   the strip has
 a bottom surface; and 
 a rib protruding from the bottom surface of the strip and having a front end inserted into the groove. 
   
     
     
         6 . The shoe sole as claimed in  claim 2 , wherein
 a width of the strip is smaller than that of the through hole;   two gaps are formed between the strip and the main body; and   each gap is located between a side surface of the strip and an inner wall of the through hole.   
     
     
         7 . The shoe sole as claimed in  claim 3 , wherein
 a width of the strip is smaller than that of the through hole;   two gaps are formed between the strip and the main body; and   each gap is located between a side surface of the strip and an inner wall of the through hole.   
     
     
         8 . The shoe sole as claimed in  claim 4 , wherein
 a width of the strip is smaller than that of the through hole;   two gaps are formed between the strip and the main body; and   each gap is located between a side surface of the strip and an inner wall of the through hole.   
     
     
         9 . The shoe sole as claimed in  claim 5 , wherein
 a width of the strip is smaller than that of the through hole;   two gaps are formed between the strip and the main body; and   each gap is located between a side surface of the strip and an inner wall of the through hole.   
     
     
         10 . The shoe sole as claimed in  claim 2 , wherein
 the through hole has
 a rectangular longitudinal section; 
 a width; and 
 a length; and 
   the strip has
 a rectangular longitudinal section; 
 a width the same as that of the through hole; 
 a length longer than that of the through hole; 
 a front end connected with the main body by a screw; and 
 a rear end opposite to the front end of the strip and connected with the main body by a screw. 
   
     
     
         11 . The shoe sole as claimed in  claim 1 , wherein
 the through hole extends toward the front end and the rear end of the main body;   a number of the at least one strip is multiple, and the strips are located in the through hole at intervals; and   each strip extends toward two opposite inner walls of the through hole and has two opposite ends respectively connected with the main body by screws.