| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a resin pipe joint attaining both pull-off resistance and good sealing performance, while economically comprising two members, namely, a joint body and a union nut. Ž<P>SOLUTION: The resin pipe joint includes the fluororesin joint body 1 having an inner cylinder 4 and a male screw part 5, and a peripheral groove (m), and the fluororesin union nut 2 having a female screw 8, a first pressing part 10 for pressing a diameter-enlarged part 3A, a second pressing part 11 for pressing a large-diameter side end of the diameter-enlarged change region 9, and a retaining inner peripheral part 13. With the fastening operation of the union nut 2 in the state that the tube 3 is inserted into the inner cylinder 4 to form the diameter-enlarged part 3A, the retaining inner peripheral portion 13 is pressed and externally suitable for a diameter-enlarged straight part 12, and the large-diameter side part of the diameter-enlarged change region 9 is thrust by an anti-come-off press part 11. Furthermore, a small-diameter side part of the diameter-enlarged change region 9 is thrust by a seal thrusting part 10. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
