| 摘要 |
<p>PURPOSE: To absorb vibration by securing softness by securing softness by nipping-holding a pipe port end part at the center part of a flange by spreading the pipe port end part to a tapered form, turning back the pipe port end part at the tapered basic part along the pipe outer periphery from the nipping holding part, and forming a gap part between the nipping holding part, turned-back part, and the flange part. CONSTITUTION: As for the joint structure of a pipe 1 and a flange 2, a nipping holding part 2a which spreads the pipe port end part to a taper form and nipping-holds the pipe port end part at the center part of the flange 2, and a turned-back part 2b for the turning-back at the tapered basic part along the outer periphery of a tapered pipe from the nipping holding part 2a are provided. The flexibility (earthquake controllability) is secured by forming a gap part Y between the nipping holding part 2a, turned-back part 2b, and the flange part 2. Accordingly, the necessity of a flexible tube at the exhaust muffler part of an automobile is obviated, and the quantity of parts can be reduced. Further, the high strength for heat, etc. can be obtained by forming the section of the turned-back part 2b of the flange 2 to a loop shape.</p> |
