| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a flexible tube for an exhaust pipe having a multilayer bellows formed such that even when the thickness of inner and outer layer plates forming a material is decreased, an air bleed hole is easily set and a stable and high air bleed effect is produced. SOLUTION: Inner and outer layer plates 11 and 12 are served as a material, crest parts 1a and valley parts 1b are alternately interconnected to absorb relative displacement of an exhaust pipe coupled to two end parts is absorbed through deformation responding to an input. In a so formed flexible tube for an exhaust pipe, the bellows 1 is formed such that a straight tubular straight part 102 is formed in the middle position between the crest part 1a and the valley 1b, which are connected to each other, and an air bleed hole 2 is formed in the outer layer plate 12 of the straight plate 102.</p> |
