| 摘要 |
PROBLEM TO BE SOLVED: To provide a hook fitting to prevent the occurrence of deformation and breakage of a stopper and also prevent the occurrence of dislocation due to judder phenomenon of a stopper caused by vibration. SOLUTION: A main stopper 10 to open and close the inlet part of a tip hook part 7 is pivotally mounted on the intermediate part of a body 5 and a substopper 11 is pivotally mounted on the intermediate part of the body 5 on the opposite side to the stopper 10. The main stopper 10 is rotationally energized through the force of a spring to bring the tip part 10b of the main stopper 10 into contact with the inner surface 7a of the tip hook part 7. The substopper 11 is rotationally energized through the force of a spring to bring the tip claw part 11b of the substopper 11 with the hook notch 10a of the intermediate part of the main stopper 10.
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