| 摘要 |
PURPOSE:To simplify an installing operation, improve a design and enable a cost reduction to be attained by a method wherein a main body is provided with both lighting air port and an air conditioning air inlet so as to be integrally formed. CONSTITUTION:An instrument 1 has a main body of substantial box-like shape with its lower surface being opened. Its top plate is provided with two pairs of sockets 3 for fluorescent lamps 7 and a central slit-like air conditioning air inlet 5. A rear surface of the air inlet 5 may act as a chimney-like joint part 6 connected to a duct 8. The instrument 1 is supported at a main bar 10 by four fixing pieces 2 fixed at four locations of the side part. With such an arrangement, a troublesome operation such as a ceiling scaling or an opening reinforcing or the like can be carried out only for the instrument 1, resulting in providing a substantial energy-saving. In addition, since the exclusive air inlet for the air conditioning is not needed, the ceiling is made clear in view of its design and its cost down can be assured. |
