| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide pipe fittings capable of preventing projection of a seal ring from a peripheral groove without giving a bad influence to installation of a pipe body. <P>SOLUTION: An open ring and a lock ring are provided in a fittings main body and the seal ring is inserted into the peripheral groove formed in an inner tube of the fittings main body and a pipe with a flange of a shorter posterior waist length than the interval A between a step part of the fittings main body at which the front edge of the pipe body arrives and the peripheral groove into which the seal ring is inserted is sheathed in the inner tube and the pipe body is inserted, while pushing the pipe at its front edge and the pipe fittings is characterized in that contacts between the front edge of the pipe body and the seal ring are prevented at the time of inserting the pipe body. 1: an open ring, 2: a lock ring, 3: a cap, 4: a peripheral groove, 5: a seal ring, 10: pipe fittings, 10a: a fittings main body, 10b: an inner tube, 11: a step part (the deepest part) of the fittings main body, 20: a pipe body, 30: a pipe, 30a: a flange, A: an interval between the step part (the deepest part) of the fittings main body and the peripheral groove, B: pipe posterior waist length. <P>COPYRIGHT: (C)2007,JPO&INPIT |
