Invention Application
US20140366977A1 METHOD FOR PULLING IN RESTORATION PIPE AND RESTORED PIPELINE 有权
拉拔管道和恢复管道的方法

  • Patent Title: METHOD FOR PULLING IN RESTORATION PIPE AND RESTORED PIPELINE
  • Patent Title (中): 拉拔管道和恢复管道的方法
  • Application No.: US14365216
    Application Date: 2013-05-29
  • Publication No.: US20140366977A1
    Publication Date: 2014-12-18
  • Inventor: Shigeki Kanao
  • Applicant: KANAFLEX CORPORATION
  • Priority: JP2012-121465 20120529; JP2012-121466 20120529
  • International Application: PCT/JP2013/064894 WO 20130529
  • Main IPC: F16L55/165
  • IPC: F16L55/165 E03F7/00
METHOD FOR PULLING IN RESTORATION PIPE AND RESTORED PIPELINE
Abstract:
Provided is a restoration pipe pulling-in method which can easily determine whether pilling-in of a restoration pipe is possible wherein the restoration pipe has a diameter as much as large relative to a deteriorated drainage channel, and which can pulling a restoration pipe into a sewer pipe wherein the gap between the restoration pipe and the sewer pipe is shorter. The restoration pipe pulling-in method comprises preparing a dummy restoration pipe 30′ which imitates the restoration pipe; attaching a determination jig 10 for determining whether pulling-in of the restoration pipe is possible to an insertion-side leading end portion of the dummy restoration pipe 30′; pulling the dummy restoration pipe 30′ with the determination jig 10 into the existing pipe 1; after confirming completion of passing-through of the dummy restoration pipe 30′ with the determination jig 10, attaching a pull-in jig to a leading end portion of the restoration pipe; and arranging the restoration pipe over an entire length of the existing pipe 1, by inserting the restoration pipe with the pull-in jig, through an upper opening 2b of the existing pipe 1, into the existing pipe 1, and by pulling the pull-in jig with a wire.
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