| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe joint preventing a seal ring from being pushed the into other position out of a predetermined position. SOLUTION: In the pipe joint, the seal ring 2, a back ring 3, a lock ring 4. and a collar 5 are fitter in a hole 10 fitting a retaining member, which is formed in a joint body 1. The periphery of a lock ring 4 is inserted in a groove formed by the back ring 3 and the collar 5. The seal ring 2 is located between an end part 10a of the hole 10 for fitting a retaining member and a back-side forming wall 30 of the back ring 3. The back-side forming wall 30 of the back ring 3 covers a side face 20 of the seal ring 2, which faces the back-side forming wall 30. |
