Title:
PIPELINE RENOVATION METHOD
Document Type and Number:
Japanese Patent JP2019010809
Kind Code:
A
Abstract:
To provide a pipe line renovation method capable of appropriately renovating a curved pipe part even when the curved pipe part has a large curvature.SOLUTION: A pipe renovation method using a curved strip 14 has an expansion and contraction part 56 expandable in a width direction. First, the curved strip 14 is spirally wound in a curved pipe part 100b to temporarily make a pipe, and then the expansion and contraction part 56 of the curved strip 14 located on an outer side X in a bending direction is extended in the width direction, and a width holding member 102 is fitted into the expanded expansion and contraction part 56. Thereafter, side edge parts of the curved strips 14 are connected to each other with a joiner.SELECTED DRAWING: Figure 7
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Inventors:
NAKAMURA RYOICHIRO
TANIGAWA SHINICHI
SUZUKI KOSUKE
MIURA HITOSHI
MIYAMA KAZUTAKA
TANIGAWA SHINICHI
SUZUKI KOSUKE
MIURA HITOSHI
MIYAMA KAZUTAKA
Application Number:
JP2017128915A
Publication Date:
January 24, 2019
Filing Date:
June 30, 2017
Export Citation:
Assignee:
KUBOTA CHEMIX CO LTD
OSAKA BOSUI KENSETSUSHA KK
KUBOTA KOKEN KK
OSAKA BOSUI KENSETSUSHA KK
KUBOTA KOKEN KK
International Classes:
B29C63/32; F16L1/00; F16L55/162
Domestic Patent References:
| JPH06143420A | 1994-05-24 | |||
| JP2009150164A | 2009-07-09 | |||
| JPH07100928A | 1995-04-18 | |||
| JP2014014959A | 2014-01-30 |
Attorney, Agent or Firm:
Yoshito Yamada