| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf shaft which enables a golfer to lead a golf club by the hand opposite to his or her dominant hand and to make an ideal swing to snap the shaft by his or her dominant hand by optimizing the outer diameter of the golf shaft of a segment which is the pivot of the hand opposite to his or her dominant hand. SOLUTION: The outer diameter d0 of the rear end 3 is specified to 16 to 18 mm and one of xs exists in a position of 50 mm from the rear end 3 and the outer diameter d50 thereof is specified to 16±2 mm. One of ys exists at a position of 150 mm from the rear end 3 and the outer diameter d150 thereof is specified to 15±2 mm. The difference in the outer diameters between the outer diameter d50 and the outer diameter d150 of this time is >=0.6 mm and the relation between the difference in the outer diameters between the outer diameter d50 and the outer diameter d150 and the difference in the outer diameter d50s between the outer diameter d0 and outer diameter d50 of the rear end 3 is specified to (d50-d150)/100>(d0-d50)/50.</p> |
