| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable tenacity and bending to work, facilitate a hitting, stabilize the flying distance and the directional property, and at the same time, prevent peeling and breaking from generating, and improve the strength and the durability. SOLUTION: This golf club shaft is equipped with a main body layer 4 for which a first fiber-reinforced prepreg formed by impregnating a reinforcing fiber with a synthetic resin, and an regulating layer 5 for which a second fiber- reinforced prepreg formed by impregnating a reinforcing fiber with a synthetic resin, on the internal side or in-between of the main body layer 4, and the second fiber-reinforced prepreg has a specific gravity which is higher than that of the first fiber-reinforced prepreg, and a low elasticity, and the rate of the second fiber-reinforced prepreg based on the overall volume of the regulating layer 5 is made 10-90%.</p> |
