| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe connection structure having excellent water cut-off property without being affected by mounting accuracy of a water cut-off flexible joint and molding precision of a pipe. SOLUTION: This pipe connection structure 1 is provided with a pipe 2 with rib, a mounting pipe 3, and the water cut-off flexible joint 4, and a connection hole 2b of the pipe 2 with rib and the mounting pipe 3 are mutually connected by the water cut-off flexible joint 4. The water cut-off flexible joint 4 has a flexible joint main body 5, a water cut-off member 6, and a rigid pressing cover 7. The joint main body 5 has a cylindrical part 5a adhering closely to outer periphery of the mounting pipe 3 and a saddle part 5b protruding in the outward direction from the cylindrical part 5a and overhanging around the connection hole 2b. The water cut-off member 6 is composed of a non-bridged member 6a and a bridged member. The non-bridged member 6a is arranged on an inner face of the saddle part 5b so as to come into contact with a rib 2a around the connection hole 2b. The bridged member 6b is arranged on an inner face of the saddle part 5b so as to come into contact with the rib 2a around the connection hole 2b and in the direction of pipe axis of the pipe 2 with rib. COPYRIGHT: (C)2004,JPO
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