发明名称 DRAIN PIPE CONNECTING PACKING
摘要 PROBLEM TO BE SOLVED: To provide a one-touch packing having no trouble in which a pipe is pressed against a seal piece of the packing by large force when a connected pipe is largely deviated in relation to a socket, and the seal pipe is easily damaged, as the case may be, the seal piece is inward drawn and torn with pipe insertion in a conventional one-touch packing. SOLUTION: A plurality of centering deviation regulating projecting parts 13 to 13 for restraining centering deviation of a connecting pipe 2 in relation to a second seal piece 12 are circumferentially provided on the inner surface of a packing main body 11. Since the connecting pipe 2 is approximately concentrically maintained in relation to an inner peripheral hole of the seal piece 12, the seal piece 12 is bonded to the pipe 2 over the whole circumference by moderate force. Accordingly, the seal piece 12 is not partially drawn inward by large force in inserting of the pipe 2.
申请公布号 JP2000074273(A) 申请公布日期 2000.03.14
申请号 JP19980243928 申请日期 1998.08.28
申请人 KOJIMA NORIATSU 发明人 KOJIMA NORIATSU
分类号 E03C1/12;F16L17/03;F16L21/00 主分类号 E03C1/12
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