| 摘要 |
PROBLEM TO BE SOLVED: To provide a unit member constituting an indirect lighting structure that may be installed readily even after a ceiling and a wall have been finished, offers a beautiful ridge line, may be installed on a curved wall surface also, and appears light-weight as a width-direction dimension of a front surface plate may be reduced.SOLUTION: A unit member for an indirect lighting structure includes: a laterally long rectangular front surface plate made of a gypsum board; a horizontal connecting plate bent along a top side of the front surface plate and extending toward a wall side; an inner surface plate folded along a side of the horizontal connecting plate on an extended side and hanging downward; a bottom plate folded along a bottom side of the inner surface plate and extending horizontally inward; a bottom plate reinforcing material made of light steel and having a widened part and a narrow part in a cross-section, with the widened part fixed on an undersurface of the bottom plate in a shorter-side direction; and a fitting reinforcing material having an edge folded to extend upward. The unit member for an indirect lighting structure has a male joint part and a female joint part formed on both edges, the male joint part having the bottom plate reinforcing material protruded therefrom, and the female joint part having the bottom plate protruded therefrom.SELECTED DRAWING: Figure 1 |
