| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To effectively suppress sludge accumulation or a flow rate loss, while surely exerting desired bending performance by relative sliding of a partially spherical outer peripheral face of a first pipe body with a partially spherical inner peripheral face of a second pipe body. <P>SOLUTION: The first pipe body 1 has the partially spherical outer peripheral face 2a projecting radially outside. The second pipe body 3 has the partially spherical inner peripheral face 3a capable of sliding along the partially spherical outer peripheral face 2a. The second pipe body 3 is fitted and connected to the first pipe body 1 to be capable of bending. A synthetic resin sleeve 15 is inserted in and mounted to inner peripheral faces of the pipe bodies 1, 3 so that the synthetic resin sleeve is in contact with the inner peripheral faces. The sleeve has the length across recess parts opening radially inward in a fitting and connecting part of the pipe bodies 1, 3, and the sleeve is elastically deformed while approximately keeping a cylindrical shape according to bending of the pipe bodies 1, 3. <P>COPYRIGHT: (C)2004,JPO</p> |
