| 摘要 |
PROBLEM TO BE SOLVED: To provide a small electric lamp signboard device which is capable of holding a reflection sheet to an adequate shape in spite of a large-sized internally illuminated signboard device and is capable of assuring high illuminance in spite of a small number of the electric lamps by using a flexible reflection sheet and devising a supporting structure of this reflection sheet. SOLUTION: This small electric lamp signboard device comprises an electric lamp housing case of a one-side opening type which is provided with a light transparent advertisement display board in a front aperture, the straight type electric lamp which is housed in this case and the reflection sheet which consists of a flexible vapor deposited aluminum sheet, is bent to a channel shape and is so arranged as to locate its bottom on the back of the electric lamp and to locate its side wall parts on the lateral sides of the electric lamp. The reflection sheet is pressed backward by a wire material disposed to cross the sheet, by which the sheet is bent to the channel shape. Its side wall parts top side are pulled toward the opening edge by a pulling and fixing means disposed near the opening edge of the front aperture so as not to slacken the entire part of the sheet.
|
