| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceiling access which facilitates mounting of a ceiling finish plate in an internal frame by using a small number of component parts only by simple work. SOLUTION: According to the structure of the ceiling inspection port, the internal frame 3 is pivotally mounted in an aluminum square external frame 1 which is fitted into an opening section 2a formed in a ceiling board 2 and fixed to a building, in a manner opening/closing an internal space of the external frame 1. The internal frame 3 has a board support plate 7 arranged on an internal surface of a rise wall 4 thereof at a location that is slightly deviated from a vertical midpoint of the rise wall 4 in a manner horizontally extending along an internal surface of the rise wall 4. Then a board 12 made of the same material as that of the ceiling board 2 is arranged at least on a rear surface of the board support plate 7, and fastened to the board support plate 7 by a screw 13. COPYRIGHT: (C)2008,JPO&INPIT
|
