| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint for a soft pipe integrating a chuck ring with a cap nut and providing visual confirmation of completion of fastening. SOLUTION: The joint for the soft pipe comprises a joint body, the cap nut and the chuck ring. In the joint body, a connecting part to existing piping is provided in one side, an inner cylinder and an outer cylinder having a gap capable of receiving a pipe end of the soft pipe are concentrically provided in another side axial direction, an anti-loosening groove is circumferentially provided in an outer circumferential face of the inner cylinder, and a male screw part is threaded in an outer circumferential face of the outer cylinder. In the cap nut, a female screw part is provided in one inner side, a tapered face having a constant downward gradient is provided in an inner circumference, and a stage part is provided in a trailing end. In the chuck ring, an outer circumferential face is used as a tapered face matching with the tapered face of the cap nut, a collar engaging with the stage part is circumferentially provided on a tip, and the cap nut and the chuck ring are integrally composed. A means of providing a tooth space in an inner circumferential face and passing an expanding slot through one place is adopted.
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