tightened body, fastening structure of the fastening body, hinge structure, male fastening body

摘要

An object of the present invention is to provide a fastening structure of the fastening body can produce the anti-loosening effect with a simple structure. A a fastening structure 1 of the fastening body, male thread body 30, a male screw side head 40 and the male thread portion 52 than this to form a male screw-side engaging portion 58 which is located 40 side male thread side head . Female screw member 60 has a female screw portion 82, the female thread side engagement portion 88 formed on the male screw side head 58 side than this. Retention by screwing the male screw 30 and the female screw member 60 engages the external thread side engagement portion 58 and the female thread side engaging portion 88, a state where the relative rotational force in the loosening direction engage with each other also act engagement mechanism 90 which is has to be constructed.BACKGROUND 2