| 摘要 |
PURPOSE:To perform the mounting operations of a reflection board to the body of a lighting fixture effectively and certainly by improving the holding structure for a detent to the reflection board. CONSTITUTION:A detent 9 held by a reflection board 4 rotatably is provided with a part to be detained B to be engaged by a detention part A of a detaining mechanism 7 furnished in the body 2 of a lighting fixture when the detent 9 is inserted in the detaining mechanism 7. A disengaging means C is furnished to disengage the two parts B and A in detention for admitting slipping-out and movement of the detent 9 from the detaining mechanism 7 when the detent 9 is rotated for the set angle upon starting in the condition that the part B is engaged by the detention part A. Furthermore, a returning mechanism 10 is furnished to restitute the detent 9 to the initial attitude in which the part to be detained B can be engaged by the detention part A. This constitution requires only pushing-in of the detent 9 into the detaining mechanism 7 of the body 2 of lighting fixture, which enables accomplishment of effective mounting of the reflection board. |
