| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lighting device having a structure capable of fixing a base member in a position of when a balloon is in an expanded state, and a locking device used for the same.SOLUTION: A locking device LS is provided between an intermediate member 12 and a base member 13, both of which can be moved toward or away from each other, and engages the intermediate member 12 and the base member 13 together in a direction of pulling each other in an approaching state so as to prevent the two members from separating from each other. The locking device includes: a hook member 52 rotatably attached to the base member 13 about the rotation shaft and having a hook 52a at the tip end; and a link member 62 attached to the intermediate member 12 about the rotation shaft rotatably and in a biased manner so as to return to an original position, and having at the tip end, a shaft part 64a that can be engaged to the hook 52a. The hook member includes a position changing part 52b for allowing rotation by being pushed by the link member, between an engagement position of causing the hook to be engaged with the link member at the original position and a non-engagement position of not causing the hook to be engaged.</p> |
