| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe coupling which enables a cost reduction, an improvement in performance of inhibiting a pipe body from coming out, and a cost-cutting. SOLUTION: The pipe coupling 2 includes a pipe-coupling main-body 3 having a flange 9 formed on the periphery at the end, a packing 7 held in an increased-diameter part 8 formed on the inside periphery of the end of the coupling main-body 3, and a push ring 6 which is fit onto the pipe body 4 connected to the coupling main-body 3, and coupled to the flange 9 by couplers 5, 25. A stopper mechanism 20 is provided between the push ring 6 and the pipe body 4 for inhibiting the pipe body 4 from coming out of the coupling main-body 3. In the stopper mechanism 20, a taper face 21 having the gradually increasing diameter toward the coupling main-body 3 is formed on the inside periphery of the push ring 6, and a coil member 22 which is placed between the taper face 21 and the pipe body 4, and is provided with a number of contact points in contact with almost whole around the taper face 21 and the outside periphery 4B of the pipe-body 4. COPYRIGHT: (C)2009,JPO&INPIT
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