| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that a cover part for a conventional ceiling inspection port is configured such that a ceiling material is attached to an inner frame thereof and the cover part is locked with and held on an outer frame fixed to a ceiling backing material with a lock fitting or the like, thus the aspect width of a frame material is large when viewing a ceiling from below and the lock fitting is exposed. <P>SOLUTION: For a ceiling inspection port which has shapes 1a and 2b engaging with an outer frame 1 and an inner frame 2 and a shape of a bearing component 5 receiving a rotating shaft 4b and of which cover part can be easily opened, an inspection port frame is provided in which the aspect width of frame materials can be thinner than before and a lock fitting or the like is eliminated, thus making the ceiling inspection port excellent in a visual effect. <P>COPYRIGHT: (C)2013,JPO&INPIT |
