Golf Club With Durable Ferrule

Abstract

A golf club has a ferrule that includes an inner sleeve made of environmentally friendly high friction silicone rubber and fitted around the shaft, and an outer sleeve fitted around the inner sleeve and having a through hole. Preferably, the through hole is stepped. The inner sleeve is limited within a large hole section of the through hole by an annular shoulder face and the engaging elements in order to prevent separation of the inner and outer sleeves.

1 . A golf club, comprising:
 a head body having a hosel;   a shaft inserted into said hosel; and   a ferrule including an inner sleeve made of a rubber material and fitted around said shaft, and an outer sleeve fitted around said inner sleeve and having a bottom end abutting against said hosel, a top end disposed above said bottom end, a stepped through hole extending through said bottom and top ends and receiving said inner sleeve, and an annular shoulder face formed between said bottom and top ends, said through hole having a large hole section between said annular shoulder face and said bottom end, and a small hole section between said annular shoulder face and said top end, said inner sleeve being received in said large hole section and abutting against said annular shoulder face.   
     
     
         2 . The golf club of  claim 1 , wherein said outer sleeve further has a first engaging element disposed at said bottom end, said inner sleeve having a second engaging element mating with said first engaging element. 
     
     
         3 . The golf club of  claim 2 , wherein said first engaging element is an annular protrusion extending into said large hole section from said bottom end, said second engaging element being an annular recess mating with said annular protrusion. 
     
     
         4 . The golf club of  claim 2 , wherein said inner sleeve further has an extension that extends into said hosel from said bottom end of said outer sleeve. 
     
     
         5 . The golf club of  claim 4 , wherein said inner sleeve further has a third engaging element formed in said extension and mating with an inner surface of said hosel. 
     
     
         6 . The golf club of  claim 5 , wherein said third engaging element is an annular recess, said inner surface of said hosel having an annular protrusion mating with said annular recess. 
     
     
         7 . The golf club of  claim 1 , wherein said outer sleeve tapers from said bottom end to said top end. 
     
     
         8 . The golf club of  claim 1 , wherein said outer sleeve is made of a plastic material. 
     
     
         9 . A golf club, comprising:
 a head body having a hosel;   a shaft inserted into said hosel; and   a ferrule including an inner sleeve made of silicone rubber and fitted around said shaft, and an outer sleeve fitted around said inner sleeve and having a bottom end abutting against said hosel, a top end disposed above said bottom end, and a through hole extending through said bottom and top ends and receiving said inner sleeve.   
     
     
         10 . The golf club of  claim 9 , wherein said outer sleeve further has an annular shoulder face formed between said bottom and top ends, said through hole having a large hole section between said annular shoulder face and said bottom end, and a small hole section between said annular shoulder face and said top end, said inner sleeve being received in said large hole section and abutting against said annular shoulder face. 
     
     
         11 . The golf club of  claim 10 , wherein said outer sleeve further has a first engaging element disposed at said bottom end, said inner sleeve having a second engaging element mating with said first engaging element. 
     
     
         12 . The golf club of  claim 11 , wherein said first engaging element is an annular protrusion extending into said large hole section from said bottom end, said second engaging element being an annular recess mating with said annular protrusion. 
     
     
         13 . The golf club of  claim 11 , wherein said inner sleeve further has an extension that extends into said hosel from said bottom end of said outer sleeve. 
     
     
         14 . The golf club of  claim 13 , wherein said inner sleeve further has a third engaging element formed in said extension and mating with an inner surface of said hosel. 
     
     
         15 . The golf club of  claim 14 , wherein said third engaging element is an annular recess, said inner surface of said hosel having an annular protrusion mating with said annular recess.