| 摘要 |
A piping device includes a body, a tube accommodated in the body and defining a flow passage, coupling members each having an insert portion, at one end thereof, to be inserted into the tube in a watertight state, a connecting portion at the other end thereof, and a flange portion at the central part thereof, and holding members each formed with a through hole at the central part thereof. The through hole of the holding member includes, at one end thereof, an expanded-diameter portion having a hole diameter larger than the remaining portion of the through hole. The insert portion of each of the coupling members is fitted into the expanded-diameter portion of the corresponding holding member with the tube passed through the through hole of the holding members and each of the insert portions of the coupling members inserted into each of the two ends of the tube, and the flange portion of each of the coupling members and the corresponding holding member pressed into contact with each other are fitted in a fitting groove formed on the body.
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