| 摘要 |
PROBLEM TO BE SOLVED: To eliminate exposure of a rubber ring and equalize the clamping pressure of the rubber ring in a connecting structure of a pipe conduit in which a socket 1 having a flange part 3 is formed on one pipe end part, the rubber ring 4 is mounted on a connecting pipe and inserted in the socket 1, and the flange part and a pressure ring are connected to press the rubber ring with the pressure ring 5, thereby securing sealing performance. SOLUTION: An opposite surface to a flange part 3 in the disc-like ring 5 is formed as a shallow recessed part 54 outside an outer peripheral trimmed face part 53. In connecting and fixing the flange part 3 and the pressure ring 5, the trimmed face part 53 is made to closely adhere to the flange part to equally fasten a bolt and nut, prevent fastening to an excess, and conceal the rubber ring. COPYRIGHT: (C)2006,JPO&NCIPI
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