| 摘要 |
PROBLEM TO BE SOLVED: To easily insert a luminaire into T-bars from the lower side and install the luminaire by attaining at least one end of an installation tool, which is installed in the upper face of a luminaire main body movably in the longitudinal direction, to move backward in the width direction of the luminaire main body. SOLUTION: A pair of T-bars 2, 3 are bridged over a C channel 1 hung from a ceiling body and installation appliances 4 of a luminaire such a reflecting plate 10, lamps 11, etc., are installed in the luminaire main body 9 through an installation tool 14. In such a luminaire, both ends of the approximately reversely U-shaped luminaire main body 9 are slantingly formed as to be widened outward and the width size of the body is made smaller than the center gap of the T-bars 2, 3 and larger than the tip end gap of horizontal pieces 8 and the height is made lower than the height from the horizontal pieces 8 to the C channel 1. Moreover, the installation tool 14 is made movable in the longitudinal direction of the luminaire main body 9 through a screw 15 engaged with a slit 12 of the luminaire main body 9 and furthermore engaging tools 5 are installed in rotatable manner in both ends of the main body through knob screws 16. |
