| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a resin pipe joint in which a state where a union nut is completely fastened or a state near thereto can be confirmed regardless of a noise condition at a work site and which is improved to have superior assembling workability and handleability. Ž<P>SOLUTION: This resin pipe joint has a structure in which by screwing advancement of the union nut 2 by screwing of a female screw 8 and a male screw 5 in a state of a tube 3 fitted over an inner cylinder 4 and generating a diameter increased part 3A, a diameter changing region 9 is pressed by a pressing part 10 for sealing. A sliding fitting part 26 is configured by forcibly fitting a rough inner peripheral face 24 comprising knurls on the union nut 2 and a rough outer peripheral face 20 comprising knurls of a joint body 1 by bending distortion of one of them, accompanying fastening rotation of the union nut 2 from just before completion of the screwing advancement by the pressing part 10 for sealing pressing the diameter changing region 9. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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