摘要 |
<P>PROBLEM TO BE SOLVED: To provide a golf club whose head weight is heavy, wherein the timing of a swing is easy to be matched to enhance a head speed upon impacting by the flexibility of a shaft by suppressing that the shaft flexes too much in time of the swing. <P>SOLUTION: In this golf club, the tip of the shaft 3 is provided with a head 2, and the rear end of the shaft 3 is provided with a grip 4. A club weight is 290 g or more, and the ratio (head weight/club weight) of the head weight to the club weight is 0.67 or more and 0.72 or less. When a distance from the tip of the shaft 3 to the gravity center G of the shaft 3 is denoted by L<SB POS="POST">G</SB>and when the full length of the shaft 3 is denoted by L<SB POS="POST">S</SB>, 0.55≤L<SB POS="POST">G</SB>/L<SB POS="POST">S</SB>≤0.67 is satisfied, and when the frequency of the flexural vibration of the club is denoted by F, 240 cpm≤F≤280 cpm is satisfied. <P>COPYRIGHT: (C)2013,JPO&INPIT |