| 摘要 |
PROBLEM TO BE SOLVED: To improve the operationability and the workability at the time of installation of a luminaire by lowering presser metal tools along V-shaped springs through pulling down metal tools and automatically sandwiching the peripheral part of an aperture hole for installation in the ceiling between the pressing metal and an outward flange. SOLUTION: A luminaire produced by air-tightly attaching a lower face cover to a downward flange part 2 in the lower end of a luminaire main body 1 is inserted into an aperture hole for installation of a ceiling plate and installed by sandwiching the ceiling plate between the flange part 2 and an installation apparatus 3. In the mentioned embedded luminaire provided with a lower face cover, pulling down metal tools 7 are installed along leg parts 4a of arms 4 uprightly installed in the flange part 2 so as to slide freely, connection parts 7a are installed in one end of the tools, and the other ends are engaged with pressing metal 6 to give the installation apparatus 3. In the case of installing a luminaire, the connection parts 7b of the pulling down metal tools 7 are engaged with the ceiling plate and moved down. Simultaneously, pressing metal 6 engaged with their tip parts are moved down along V-shaped springs 5 which are to hold the pressing metal 6 through engaging pieces 6c and the ceiling plate is sandwiching between the engaging parts 6a and the flange 2. |
