发明名称 |
LINING PIPE THROUGH-HOLE FORMING METHOD, AND FILM CUTTING DEVICE FOR LINING PIPE |
摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently and reliably form a through-hole in a lining pipe under continuous flow conditions while suppressing peeling of a resin lining layer on a pipe inner periphery side continuous to a periphery of the through-hole. <P>SOLUTION: A lining pipe through-hole forming method for forming a through-hole 3 in a pipe wall 2A of a fluid pipe 2 with a resin lining layer 1 formed on an inner periphery thereof, while maintaining fluid flow, includes: a housing mounting step of mounting on the fluid pipe 2 a housing provided with a working on-off valve 5 while sealing a through-hole forming work area of the fluid pipe 2; a drilling step of forming the through-hole 3 in the pipe wall 2A of the fluid pipe 2 by means of a drilling tool of a drilling device coupled to the housing, and then removing from the housing the drilling device provided with a cut wall piece; and a film cutting step of attaching to the housing a film cutting device B capable of cutting a resin lining film 1a of the resin lining layer 1 facing the through-hole 3 of the pipe wall 2A, and cutting off the resin lining film 1a approximately along an inner peripheral edge of the through-hole 3. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013019528(A) |
申请公布日期 |
2013.01.31 |
申请号 |
JP20110155808 |
申请日期 |
2011.07.14 |
申请人 |
WATERWORKS TECHNOLOGY DEVELOPMENT ORGANIZATION COLTD |
发明人 |
NAKANO KIYOHARU;IWAKURA TADASHI;ASAI HISAKAZU;YAMAMOTO TADAHIDE |
分类号 |
F16L41/06;B26F1/00;F16L55/00 |
主分类号 |
F16L41/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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