| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an airtight dust-proof cover for a concealed wall mount small wiring device which facilitates connection of a wiring cord and attachment to a wall, while maintaining airtightness and dust-proofness. SOLUTION: An airtight dust-proof cover 10 is composed of a thin plate frame 11 which is larger than the opening 21 on a wall and has a window hole 14 larger than a wiring device main part 30 and transparent or semi-transparent airtight film 12 which is made of an extensible material and applied to the frame 11 so as to close the window hole 14. The part of the film 12 on the window hole 14 is put onto the rear of the wiring device main part 30. While the wiring device main part 30 is inserted into the opening 21, the frame 11 is pressed against the wall by a holder 35 and fixed to the wall so as to extend the film 12 and the rear of the wiring appliance 30 is covered.</p> |
