| 摘要 |
PROBLEM TO BE SOLVED: To provide a connection member capable of securing a strength and rigidity.SOLUTION: For a distal end portion 26 of a first end 20 into which a first bush 50 is press-fitted, on a projection plane projecting the first end 20 on a surface orthogonal with a center axis A1, a first distance D1 on a first straight line L1 crossing the first straight line L1 passing a center C1 of a connection part 24 in a circumferential direction and the center axis A1, is longest and as an angle θ1 formed from a second straight line L2 passing the center axis A1 and the first straight line L1 becomes larger, a second distance D2 on the second straight line L2 crossing the second straight line L2 becomes gradually shorter than the first distance D1. The distal end portion 26 improves a strength of the first end 20 and distributes a stress in the case where a tensile force of a connection member 10 in an axial direction acts on the first end 20, such that the strength and the rigidity can be secured.SELECTED DRAWING: Figure 2 |
