| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate the assembling and provide high displacement absorbability by providing a bellows having both ends connected to first and second exhaust pipes to absorb the displacement of both the exhaust pipes, and an outer cylinder for covering the circumference of the bellows, which has a protruding piece in the end part. SOLUTION: This flexible tube has a bellows 3 for absorbing the displacement of first and second exhaust pipes 1, 2. Both end parts of the bellows 3 are inserted to the exhaust pipes 1, 2 from above inner covers 8a, 8b installed to the exhaust pipes 1, 2, respectively, and fixed by the insertion of support collars 6a, 6b. An outer cylinder 4 formed into a cylinder and having, on both ends, protruding pieces 11a, 11b having hook bent parts 14 in the direction orthogonal to the tube axis is fitted onto the circumference extending over substantially the whole length of the bellows 3. The outer cylinder 4 is elastically supported through conical coil springs 7a, 7b whose minor diameter parts 70a, 70b are engagingly fitted to the support collars 6a, 6b and whose major diameter parts 71a, 71b are engagingly fitted to the outer cylinder 4.</p> |
