| 摘要 |
PURPOSE: A structure for installing a fluorescent lamp of a triangular prism type rotary advertising board is provided to maximize an advertising effect by installing the fluorescent lamp in the inside of the triangular prism. CONSTITUTION: An insertion groove(3) is formed at the first rotary plate(1) which is combined with a triangular prism(4) of an axial bracket side. A combination hole(22) is formed at the second rotary plate(1') which is combined with the triangular prism of the axial bracket side. A projection(23) is formed around the combination hole(22). A fluorescent lamp(9) is inserted into a plurality of circular fixing portions(5,5') including a power jack(7) and a power cable(8). The circular fixing portions(5,5') are inserted into the insertion groove(3) and the combination hole(22) of the first and the second rotary plates(1,1'). the projection(23) of the second rotary plate(1') is combined with a combination portion(13) of a bracket(11) having a power jack insertion portion(24). The combination portion(13) is switched by a spring(12).
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