| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a connection system that exhibits interchangeability between a shaft and a club head, which can suppress the deterioration of visual sensation to the minimum and can impart a mass variation of a club while optimizing customization. <P>SOLUTION: The golf club includes the shaft, the club head and the connection system. The connection system has an insertion-type mount which is biased by a spring. The spring has a spring constant k of about 0.893 kg/cm (about 5 lbf/in) to about 17.858 kg/cm (about 100 lbf/in). The insertion-type mount which is biased by the spring is arranged above the club head. <P>COPYRIGHT: (C)2012,JPO&INPIT |
