| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve a hit ball directivity and a carry while retaining its lightweight in assembling a head with a shaft. <P>SOLUTION: This golf club is so formed that a distance L from the gravity center position 14G of the head 14 to a shaft axis 18 is not less than 30 mm and less than 40 mm, a torsional rigidity distribution from the head side tip 12 of the shaft 11 to a position of 400 mm therefrom in the length direction is not less than 1.2 kg×mm<SP>2</SP>and less than 3.0 kg×mm<SP>2</SP>, and the torsional rigidity distribution from the grip side rear end 13 to a position 300 mm therefrom in the length direction is not less than 2.5 kg×mm<SP>2</SP>and less than 3.5 kg×mm<SP>2</SP>. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
