| 摘要 |
<p>This invention relates to a flexible tube of an exhaust pipe for motor vehicles. The flexible tube includes a cylindrically corrugated bellows member(10) made of metallic material; an interlock member(20) spirally formed and positioned with a prescribed gap from the bellows member(10), and for absorbing the displacements due to the various motions of the exhaust pipe; a braid member(30) for surrounding the outside of the bellows member(10); two caps(40) for pressing both end parts of the braid member(30); two ring-shaped intermediate members(50) respectively having one end fixed to the bellows member(10) and the other end fixed to be overlapped with the interlock member(20) outside of the intermediate members; and an isolating member(60) positioned in a gap between the bellows member(10) and the interlock member(20) to prevent the bellows member(10) and the interlock member(20) from directly contacting, wherein the isolating member(60) protects the bellows member(10) from abrasion and damage to prevent leakage of gas, and absorbs the extension, compression and bending displacements. Therefore, this invention can increase its lifetime. <IMAGE></p> |
