| 摘要 |
PROBLEM TO BE SOLVED: To simply and securely mount a duct, particularly a flexible duct even on a building board of a ceiling or a wall of a room constructed with a material difficult to be screwed such as a resin board or a heat insulation board. SOLUTION: A wire spring 7' of stopper means is disposed freely to vertically stand on an outer periphery of a body 5 of a mounting member 4 having a cylindrical body 5 and a flange 6, and a tip end of a flexible duct 1 is fitted to and inserted into the body 5, and further the body 5 is inserted into a mount hole 3 in a building board 2. Further, an undulating part (n) of the wire spring 7' is raised manually in one touch manner and is brought into resilient contact with the building board 2 in the state where the flange 6 is made contact with the building board 2. The mounting member 4 is mounted in the mounting hole 3 in the building board 2 and the flexible duct 1 is mounted through the mounting member 4 by holding the building board 2 between the flange 6 and the wire spring 7'. |
