| 摘要 |
PURPOSE:To facilitate execution and replacement of lamp in a lamp unit part by providing a plurality of stop holes in a horizontal direction in a side plate opposed to a wall, and mounting a supporting arm in the stop hole movably in the horizontal direction and further turnably in a perpendicular surface inner direction. CONSTITUTION:In a luminaire main unit 1, a plurality of stop holes 1e are provided to be arranged in a long scale direction of the luminaire main unit 1 in the vicinity of the lower end of a side plate 1a opposed to a wall 3 of a ceiling 4. One end of a supporting arm 10, secured to a back side of a lamp unit part 2, is folded in one direction and inserted to the stop hole 1e of the luminaire main unit 1. When this supporting arm 10 is turned to bring its lower end side into contact with a lower plate 1c, a mounting part of the lamp unit part 2 of the supporting arm 10 is exposed from an opening 4a of the ceiling 4, to perform mounting in wide space in a front side of the opening 4a of the ceiling 4. Also in the case of replacing a lamp 2a, when the supporting arm 10 is turned, the lamp unit part 2 is exposed in the front of the opening 4a of the ceiling, so that replacing work of the lamp 2a can be easily performed in the wide space. |
