| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting implement in which entering and outgoing of the air into the lighting fixture from the space where a lighting fixture is arranged is prevented and invasion of water drop into the lighting fixture from the internal space of the ceiling is prevented. <P>SOLUTION: The lighting fixture 1 is attached watertightly to the ceiling face through a fitting packing 21. A through hole 22 is formed in the ceiling material C and an inlet cylinder 17b of which a part is inserted into the inside space of the ceiling through the through hole 22 is provided protruded on the upper side of the lighting fixture 1. A connecting cable Lh is inserted into the inlet cylinder between the internal space of the ceiling and the internal space of the lighting fixture 1, and an air passage hole 17c is opened at the upper end of the inlet cylinder 17b. A cap 20 is fitted to the upper part of the inlet cylinder 17b so as to cover the air passage hole 17c. A gap G which enables the air to flow between the internal space of the ceiling and the air passage hole 17c is formed between the inner periphery of the cap 20 and the outer periphery of the inlet cylinder 17c. <P>COPYRIGHT: (C)2004,JPO |
