| 摘要 |
PROBLEM TO BE SOLVED: To provide a shaft structure, a male member, and a female member which are capable of reducing axial sliding resistance while suppressing uncomfortable sound called tooth hammer, and which do not give conventional discomfort to an operator.SOLUTION: A shaft structure includes: a male member 21; a female member 22; and a rubber or resin impregnated fiber member 23. In the initial state in which the female member 22 is inserted into the male member 21, a clearance S1 surrounded by the fiber member 23 and a contact portion P1 in an inner peripheral portion 22a of the female member 22 is formed. |
