Golf club

Abstract

A golf club that includes a head which has a mass of at least 160 g and no more than 180 g and has a hosel hole and a shaft that has a hardness of characteristic frequency of 225 cpm or less; wherein the head has a shaft attachment member that is inserted and fixed in the hosel hole from the bottom side of the head, and within the shaft attachment member is formed a shaft insertion hole that is inclined with respect to the sole of the head and into which the shaft is inserted from the upper side of the head, and the shaft has a shaft vibration damping member comprising a cylindrical fixture component, which is fixed to the shaft and is disposed coaxially with the shaft, and a vibration component, which is provided in the fixture component and vibrates independently from the shaft.

1 . A golf club comprising: 
 a head formed with a tapered hosel hole whose diameter increases from an upper portion of said head to a bottom portion of said head, and    a shaft that is attached at one end thereof to said head; wherein    said head is equipped with a shaft attachment member that is inserted and fixed in said hosel hole from a bottom side of said head and that has an external shape which is substantially the same as a shape of said hosel hole, and within said shaft attachment member is formed a shaft insertion hole that is inclined at a specific angle with respect to a sole surface of said head and into which said shaft is inserted from an upper side of said head, and    said shaft is equipped with a shaft vibration damping member comprising a substantially cylindrical fixture component, which is fixed to said shaft and is disposed coaxially with said shaft, and a vibration component, which is provided in said fixture component and vibrates independently from said shaft.    
   
   
       2 . The golf club according to  claim 1 , wherein said shaft is hollow, and said shaft vibration damping member is provided in said hollow space of said shaft.  
   
   
       3 . The golf club according to  claim 1 , wherein said shaft attachment member is comprised of a plurality of segmented members that are segmented in a peripheral direction thereof.  
   
   
       4 . The golf club according to  claim 1 , wherein said shaft insertion hole in said shaft attachment member is closed at a bottom thereof.  
   
   
       5 . The golf club according to  claim 1 , wherein a space between said hosel hole of said head and an outer peripheral surface of said shaft attachment member, and a space between said shaft and an inner peripheral surface of said shaft insertion hole of said shaft attachment member are filled with an adhesive for fixing said shaft attachment member to said head and shaft.  
   
   
       6 . A golf club comprising: 
 a head formed with a tapered hosel hole whose diameter increases from an upper portion of said head to a bottom portion of said head, and    a shaft that is attached at one end thereof to said head; wherein    said head is equipped with a substantially plate-form shaft supporting member that is inserted and fixed in a hosel hole from a bottom side of said head, and within said shaft supporting member is formed a shaft insertion hole in which said shaft is inserted, and    said shaft is equipped with a shaft vibration damping member comprising a substantially cylindrical fixture component, which is fixed to said shaft and is disposed coaxially with said shaft, and a vibration component, which is provided in said fixture component and vibrates independently from said shaft.    
   
   
       7 . The golf club according to  claim 6 , wherein said hosel hole in the head is filled with an adhesive for fixing said shaft to said head.  
   
   
       8 . The golf club according to  claim 1  or  6 , wherein said head has a mass of at least 160 g and no more than 180 g, and said shaft has a hardness of characteristic frequency of 225 cpm or less;  
   
   
       9 . The golf club according to any one of  claims 1  to  7 , wherein an inside diameter of an upper opening of said hosel hole in said head is substantially the same as an outside diameter of said shaft that is to be inserted into said hosel hole.  
   
   
       10 . The golf club according to claims  8 , wherein an inside diameter of an upper opening of said hosel hole in said head is substantially the same as an outside diameter of said shaft that is to be inserted into said hosel hole.