| 摘要 |
PURPOSE:To shorten working time, and to facilitate maintenance work by forming a lengthy recessed part in the direction of a back surface side of a reflecting plate, by providing a hole for inserting a power source line, as well as a hole for mounting a lighting apparatus, on the recessed part, and by providing an auxiliary reflecting plate for almost covering the recessed part from the front surface side in such a way that the plate can be freely attached or detached. CONSTITUTION:A lengthy recessed part 11 is formed in parallel to the direction of a lamp tube shaft that is recessed along the back surface side of the reflecting plate 3, on the side of a lamp 4, which is on the front surface side of the reflecting plate 3. At least a lighting device 6a is mounted on the recessed part 11, and a hole 7 for inserting a power source line as well as a hole 8 for mounting a lighting apparatus 1, are provided on the recessed part 11, and an auxiliary reflecting plate 12 with which the recessed part 11 is almost covered from the front surface side, is provided in such a way that it can be attached or detached freely. Regarding the construction, after the lamp 4 is installed on a socket 5, the component of the lighting apparatus 1 is assembled on the floor surface where working is easily done, and is formed into block, so as to be mounted on a structure. The working time is shortened thereby, and while workability is improved, maintenance work is facilitated. |
