| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enable the provision of sealing performance to a connection portion by utilizing the resin coat layer of an inner surface-coated pipe body and the easy and sure exhibition of the alignment action between pipe bodies at the connection portion. <P>SOLUTION: The connection structure of the inner surface-coated pipe body has an insertion port 20 provided to a first inner surface-coated pipe body 10, a receiver port 60 provided to a second inner surface-coated pipe body 50, a sealing mechanism 70 and a fastening mechanism 80. The insertion port 20 is formed by projecting the first resin coat layer 12 of the first inner surface-coated pipe body 10 to the outside of the end of an outer pipe 11. The receiver port 60 is formed from an enlarged cylindrical portion 61 formed by extending the outer pipe 51 of the second inner surface-coated pipe body 50 and an extended resin portion 62 formed by extending a second resin coat layer 52. The sealing mechanism 70 has a first packing receiver 71 integrally molded with the root of the insertion port 20 using a resin, a second packing receiver 75 integrally molded with the end of the extended resin portion 62 using a resin, and a packing 78. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
