| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve the downsizing of a flexible tube that is connected to an exhaust system being continuous with an engine to dampen vibrations in the axial direction of the exhaust system. <P>SOLUTION: The flexible tube includes a bellows tube 10, an interlock tube 20 placed inside thereof, and upstream-side and downstream-side joint pipes 40 and 41 coupled to both ends of the bellows tube 10. Diameters of fixing end portions 20u and 20d located at both ends of the interlock tube 20 are made larger than a diameter at a middle portion thereof, extension portions 40e and 41e of the upstream-side and downstream-side joint pipes 40 and 41 are fitted and fixed to inner peripheral surfaces of the fixing end portions, and depths De, De of valley portions 13 of a bellows portion 11 located over the fixing end portions 20u and 20d are smaller than a depth Dm of other valley portions. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
