| 摘要 |
A pipe joint is configured so that, even if a creep phenomenon occurs in a pipe body, the pipe joint retains high strength for resisting the dislocation of the pipe body. A pipe body (B) is inserted into an insertion space (S) adapted for the insertion of the pipe body (B) and formed along the outer peripheral surface (1a) of a nipple (1). In this state, a sleeve (4) is reduced in diameter and deformed by moving a first sloped surface (2) and a second sloped surface (3) relative to each other so that the first sloped surface (2) and the second sloped surface (3) approach each other. As a result, the outer surface (B2) of the pipe body (B) is partially compressively deformed by the inner peripheral surface of the sleeve (4) and at the same time the portion of the outer surface, the volume of which corresponds to the compressive deformation, is deformed and swollen from the front end outer peripheral portion (B3) of the pipe body (B) toward an annular recess (5) and fitted into the annular recess (5). The deformed and swollen front end outer peripheral portion (B3) of the pipe body (B) is caught by a stepped section (5a), and the entire pipe body (B) is held so that the pipe body (B) cannot move in the opposite direction (U) to the insertion direction (N) of the pipe body (B). |
