| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ceiling structure in which various kinds of devices can be easily installed and low cost installation can be realized. <P>SOLUTION: An engaging recess 23 in which devices can be fixedly installed on the ceiling panels 20c constituting the ceiling 20 by assembling them on the upper edge of the wall panel 12a or the like is integrally formed with the ceiling panel 20c on the upper face of the ceiling panel 20c. Engaging protrusions 33a, 33b are formed on the upper face of the ceiling panel 30c. Further, an engaging hole 43 penetrating from the upper face of the ceiling panel 40c to the lower face is formed The ceiling panel 20c or the like are formed by blow molding and a hollow part 24 or the like is formed in the inside to constitute the structure. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
