| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible pipe joint capable of keeping an inner wall surface virtually smooth even when being used in a bent state, capable of preventing deformation after molding even when a material having hardness difference is used, and capable of facilitating construction. SOLUTION: The flexible pipe joint 10 comprises a pipe body 11 having a connection part 11a on both ends and smooth inner and outer surfaces, and a reinforcement member 12 spirally arranged on an outer periphery of the pipe body 11. The pipe body 11 and the reinforcement member 12 are constituted by synthetic resin having different hardness, and an interval of a spiral 12b of the reinforcement member 12 is 10-25 mm. Thus, an inner wall surface 11b of the bent part in the bent state can be folded and piled to project to the outside in an almost smooth manner, rigidity is enhanced by ring parts 12a on both ends of the spiral 12b, and deformation after molding by the hardness difference can be prevented. Further, force of repulsion by the reinforcement member is generated to an extended direction even when being pressed and contracted, and thereby, attachment to piping P is facilitated, and workability is improved. COPYRIGHT: (C)2009,JPO&INPIT
|
