| 摘要 |
PURPOSE:To obtain a duct connector, capable of taping without producing any clearance, by a method wherein the title fan is constituted of the duct connector, provided with a plurality of cut-and-raised parts on the tip end of the conical tubular body thereof so as to be fitted to the inner peripheral part of a duct, and the main body of a ventilating fan, having a delivery port, abutted against the connecting part so as to communicate with the duct connector, on the side surface thereof. CONSTITUTION:A duct 8 is fitted to a duct connector 6 to connect it by taping so as not to produce any clearance between them, however, a superposition between the duct 8 and the duct connector 6 may be secured sufficiently by cut-and-raised parts 7. The fitting part between a conical tubular body 6a and the duct 8 is not so wide; therefore, the width of taping may be secured sufficiently on the conical tubular body 6a. Necessary width (b) for superposition and the same (a) for taping may be secured without increasing the material of the duct connector 6. |
