| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceiling inspection port capable of effectively preventing a cover body from coming off when a door of a highly airtight house is opened or closed and improving operability for opening and closing.SOLUTION: A ceiling inspection port blocks an opening 2 by supporting a cover body 4, which is fixed around the opening 2 formed on a ceiling 1 and put in an attic 3 through the opening 2. The ceiling inspection port horizontally rotatably supports the cover body 4 between a ready-for-use rotation position and a use rotation position and has a hold part 5, which restricts a lifting-up amount of the cover body 4 by overlapping a top face of the cover body along with shifting from the ready-for-use rotation position to the use rotation position.SELECTED DRAWING: Figure 5 |
