Fts Co., Ltd.

Nitta Moore Company

Seiji Ito

Jun Okada

Jun c/o Horie Kinzoku Kogyo Kk Okada

A connection structure for a resin pipe, in which leakage of fluid from between a metal pipe and the resin pipe fitted on the metal pipe is prevented for a long time. In the connection structure, at least two diameter-expanded sections () are formed with a spacing on an end region of a metal pipe (), the spacing between the two diameter-expanded sections () functioning as a circumferential groove () in which a seal ring (SR) is received, and a resin tube () is fitted up to a position beyond a far side diameter-expanded section () of the two diameter-expanded sections (). A back ring (BR) is received in the circumferential groove () together with the seal ring (SR). The diameter-expanded sections () of the metal tube () are formed by bulging or spool shape-forming process.

Growing community of inventors

Nabari, Japan

Seiji Ito