| 摘要 |
<p>PURPOSE: To lower the spring constant of a bellows part so as to make it easy to absorb vibration in an exhaust system and reduce radial dimension so as to obtain compact constitution regarding a flexible tube disposed in the exhaust system of an automobile. CONSTITUTION: A bellows part 2 has a crest height inclined part 5 with the crest height gradually increased from a first crest 7 at the outermost end, and a crest height constant part 6 of the same crest height from a crest 10, adjacent to the highest crest 9 of the crest height inclined part 5, onward. The bottom part 4A of each root part 4 in the crest height constant part 6 is positioned on the inside of the bottom part 4B of each root part 4 of the crest height inclined part 5.</p> |
