| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a whirl-stop device of a bolt or a nut which can easily fix a bolt and a nut provided on a difficult place when handling, and can easily attach and detach a fastened member. <P>SOLUTION: The whirl-stop device 10 constitutes a handrail driving roller attachment and detachment device with a rotary device 20, and has two head parts 14 formed with fitting parts 12 respectively and a shaft part 13 connecting respective head parts 14. Respective fitting parts 12 fit to a nut 52B together with a nut 52A, and thereby they can easily fix the nut 52A corresponding to a handrail driving roller 51A which is an attachment/detachment object by making use of the nut 52B. Also, the handrail driving roller 51A can easily and quickly be attached and detached by rotating a shaft 56A with the rotary device 20 in a state where the nut 52A is fixed by the whirl-stop device 10. <P>COPYRIGHT: (C)2012,JPO&INPIT |
