PIPE JOINT FOR EXHAUST PIPE

PROBLEM TO BE SOLVED: To absorb both of relative rotational displacement and translation displacement between an upstream side exhaust pipe and a downstream side exhaust pipe in a pipe joint for exhaust pipes. SOLUTION: A gasket 18 is pinched by a first flange 11 and a second flange 12 in the state that a first protruding spherical surface 41A abuts on a first recessed spherical surface 11A of the first flange 11 and a second protruding spherical surface 42A abuts on a second recessed spherical surface 12A of the second flange 12. With this structure, when relative rotational displacement is generated between an upstream side exhaust pipe 20 and a downstream side exhaust pipe 22, the gasket 18 slides to the first recessed spherical surface 11A and the second recessed spherical surface 12A, and the rotational displacement is thereby absorbed. Since the gasket 18 is divided into an upstream side half body 41 and a downstream side half body 42, when relative translation displacement is generated between the upstream side exhaust pipe 20 and the downstream side exhaust pipe 22, the upstream side half body 41 and the downstream side half body 42 slide relatively to each other, and the translation displacement is thereby absorbed. COPYRIGHT: (C)2010,JPO&INPIT