| 摘要 |
PROBLEM TO BE SOLVED: To solve problems of a conventional fitting structure in which a decorative cover receiving body and a decorative cover are easy to deform and when external force is applied, the decorative cover falls.SOLUTION: There is provided an opening part device that includes a frame F fixed to a peripheral edge of a building opening part A and a cover C1 mounted on the frame F, which includes a fixed piece 3A and a reception part 8A. The cover C1 includes an engagement part 10A which engages the reception part 8A, a hollow part 10B formed on a frame outer peripheral side with respect to the engagement part 10A, and a pocket formation part 10C which forms a sealing pocket P on a frame outer peripheral side with respect to the engagement part 10A with a building outer wall. The cover C1 is made hard to deform and made easy to be mounted, and even when external force is applied, the cover C1 is held in a tight mounting state. |
