| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a swing balance suitable for a golfer to use a club even after the change or the like of a shaft, and keep the characteristic value of a head unchanged. SOLUTION: Regarding a shaft 4 coupled to the hosel of a head and a golf club socket 1 connected to the upper end of the hosel, the internal surface of the socket 1 in contact with the shaft 4 is formed out of a plastic inner cylinder 2, and several types of metallic outer cylinders 3 of different weight are integrated with the outside of the inner cylinder 2, thereby enabling the selection of the socket 1 of weight suitable for a desired golf club swing.</p> |
