| 摘要 |
PURPOSE:To facilitate installation of a ventilation device on a wall surface without requiring a work to bore a piercing hole on the wall surface, by allowing an air- sucking-and-exhausting duct to be fit into a piercing hole (for the air-sucking-and- exhausting duct) formed on transom section of a door. CONSTITUTION:When installing a ventilation device, at first of all, a lumber 7 of transom section 6 of a door sash 5 is provided with piercing holes to which an air- sucking duct 10 and an air-exhausting duct 11 are to be tightly fit in, respectively, and the ducts 10 and 11 which are attached to installation boards 8 are tightly fit into the respective piercing holes from outside of a room. And then, the installation boards 8 are securely installed onto the surface of outdoor wall on top of the transom section 6 with bolts 12. And then, a ventilation fan main 13 which is equipped in its inside with an air-sucking-and-exhausting blower 19 and a heat-exchanger 18, etc. is installed onto the installation board 8 by engaging a bent section 16 with a hooking section 9 of the installation board 8. And in the indoor side of the transom section 6, grilles are installed with screws, etc. on the sections opposite to the air- sucking and air-exhausting ducts 10 and 11. |
