| 摘要 |
PROBLEM TO BE SOLVED: To provide a fastening structure of a fastening body capable of exerting a loosening prevention effect with a simple structure.SOLUTION: In a fastening structure 1 for a fastening body, a male screw body 30 has: a male screw side head section 40; a male screw section 52; and a male screw side engagement section 58 positioned closer to the male screw side head section 40 than the male screw section 52. A female body 60 has: a female screw section 82; and a female screw side engagement section 88 formed closer to the male screw side head section 40 than the female screw section 82. An engagement mechanism 90, where the male screw side engagement section 58 is engaged with the female screw side engagement section 88 when the male screw body 30 and the female screw body 60 are screwed together, enables a mutual engagement state to be maintained even when relative rotational force in a direction to loosen the engagement state is applied.SELECTED DRAWING: Figure 2 |
