| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust pipe coping with various differences such as a thin panel of a window frame and a thick wall. SOLUTION: A bolt or a flange is formed to be hollow inside, and the bolt or flange 12 is fitted to the indoor 14 side of a hole 17 of the wall 13 or the panel 10 of the window frame 9. A nut 11 is fitted to an opposite part using a screw 16 and tightened for rigid fixing. A hose or a pipe from a ventilating fan is connected to the indoor 14 side. COPYRIGHT: (C)2005,JPO&NCIPI
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