| 摘要 |
<p>PURPOSE:To prevent the vibration of the swing in a fiber reinforced resin-made golf shaft by scattering an abutting portion of a winding periphery in fiber reinforced resin-made sheet to make approximately even the rigidity of the main body of the shaft in the peripheral direction of the main body of the shaft. CONSTITUTION:In a shaft main body 7, an abutting portion of both winding end portions 27a, 27b in pre-preg sheet comprising an internal layer 13 and a winding end portions 29a, 29b in pre-preg sheet constituting an external layer 15 of the main pipe 17 is shifted, for example, by 180 deg.. At the same time, the abutting portion of each winding end portions of reinforced pre-preg sheet is respectively shifted, for example, by 90 deg. to even the rigidity of the shaft main body 7 in the peripheral direction. When the golf club with the shaft main body 7 provided is swung the shaft main body 7 does not generate anisotropy in the peripheral direction and the generation of the head vibration can be prevented.</p> |
