| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf club shaft which is capable of increasing, flying distance and of attributing favorable directionality of a ball upon shot. SOLUTION: This golf club shaft is formed in a tapered shape with a diameter gradually reduced from the grip side to the tip side and satisfies the constitution requisite to have the grip part and the tip part with each range with higher torsional rigidity compared to a case the physical porperty line is drawn by a straight line in the torsional rigidity distribution property line along the shaft axis and the middle part with a range with higher bending rigidity compared to a case the physical property line is drawn in a straight line.</p> |
