| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the adhesiveness between respective fiber reinforced composite resin sheets and workability for production thereof and to regulate a strength required as a golf club shaft due to characteristics of an inserted fiber reinforced composite resin sheet. SOLUTION: Plural fiber reinforced composite resin sheets 1 are wound and laminated on a metallic core for forming and is heated and cured to make up a golf club shaft. The shaft is made by winding two fiber reinforced composite resin sheets 1 containing at least 70% of fiber holding a fiber reinforced composite resin sheet thinner than the above sheets and containing up to 70% of reinforcing fibers between them on a metallic core.</p> |
