| 摘要 |
PURPOSE:To improve jointing strength between a shaft main body and joint yokes by locally reinforcing a part in comparison with another part out of the shaft body where the joint yokes are press-fitted. CONSTITUTION:Joint yokes 3, 4 made of metal are press-fitted through rubber elastic bodies 5 to the inner circumferential parts on both ends of a shaft main body 2 made of FRP and formed into a tubular shape. As for the part of the shaft main body 2 where the joint yokes 3, 4 are press-fitted, at least one condition among winding angle theta1, winding density, the number of winding, and the diameter of element of reinforcing fiber 8 is locally set larger than another part. In this way, generation of residual stress on the press-fitted part side is restrained by resiliency of the rubber elastic body, and jointing strength between the shaft main body and the joint yoke can be improved. |
