| 摘要 |
PURPOSE:To fix a slip-off preventing tool according to the specification of slip-off prevention without changing the structural specification of a frame by.disposing fixing portions capable of respectively fixing two kinds of slip-off preventing tools. CONSTITUTION:In the case where slip-off of a luminaire is realized by a first slip-off preventing tool 4, an operating member 13 and inserting piece 12 of the slip-off preventing tool 4 are inserted into a slit formed on a frame 1, to be thus fixed to a first fixing portion 7. In the case of slip-off prevention by means of a second slip-off preventing tool 5, a fixing plate 5a of the second slip-off preventing tool abuts against a fixing surface 8a formed on a band-like frame 1a, to be thus screwed to a cylindrical frame 16 together with the frame 1a. Consequently, it is possible to fix the slop-off preventing tool 4 or 5 according to the slip-off specification without changing the structural specification of the frame 1. |
