| 摘要 |
PURPOSE:To provide a simultaneous supply and exhaust type range hood requiring an easy installation work by fitting and connecting a duct having a dual tubular structure wherein an exhaust air duct is provided at the inner side of a supply air duct in and to an exhaust air adaptor and a duct connection flange. CONSTITUTION:A supply air chamber 5 having a box shape so that an exhaust air adaptor 4 is accommodated therein, is mounted on the ceiling surface of a range hood main body 1. A supply and exhaust air duct 10 has a dual tubular structure so that an exhaust air duct 11 is provided at the inner side of a supply air duct 12, and passes through a duct penetrating hole 13 provided on the wall. The tip end of the exhaust air duct 11 is fitted in and connected to an exhaust air adaptor 4, and the tip end of a supply air duct 12 is located at the intermediate part between the exhaust air adaptor 4 and the duct connecting flange 9, and opens within the supply air chamber 5. Further, a joint portion between the exhaust air duct 11 and the exhaust air adaptor 4 and a fitted portion between the supply air duct 12 and the duct connecting flange 9 are subjected to taping by means of a tape 14. Thus, one duct penetrating hole is enough and the mounting work becomes easy.
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