| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf club shaft capable of providing the soft feeling without giving the vibration and the impact to a player in shot. SOLUTION: This golf club shaft manufactured by a sheet winding method using a pre-preg sheet manufactured by aligning the reinforcement fiber in one direction and fixing the same with a matrix resin, and laminating the pre- preg sheet, comprises a bias layer where the reinforcement fiber of the pre-preg sheet is wound at an inclination angle of 15-30 deg. to a shaft axis of the golf club shaft, and a straight layer where the reinforcement fiber is wound approximately in parallel to the shaft axis, and a weight ratio of the bias layer is 70 wt.% or more to 90 wt.% or less.</p> |
