| 摘要 |
PROBLEM TO BE SOLVED: To make a ceiling inspection opening unobtrusive and freely modify the arrangement at need by providing the ceiling inspection part of one piece part of a ceiling panel slit, and closing it by one cover. SOLUTION: An opening part of one piece part of a ceiling panel slit 12 is provided to close the opening part by a cover 4. The opening part is formed by a U-shaped frame 2 connecting three frames fixed on the frame 9 of a wall tile panel and one frame 3. The cover 4 is formed by a steel plate providing a rectangular frame 5 on the periphery and a plaster board 6. The ceiling inspection opening is unobtrusive, and the arrangement can be freely modified. If one frame 3 forming the opening part is attached by sticking for the ceiling panel, hanging of a ceiling can be prevented.
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