Title:
METAL PIPE BENDING DEVICE, MEANDERING PIPE MANUFACTURING METHOD AND MEANDERING PIPE
Document Type and Number:
WIPO Patent Application WO/2015/064047
Kind Code:
A1
Abstract:
[Problem] To provide a metal pipe bending device that can carry out small diameter bending of 180˚ on a metal pipe even if the length of a straight pipe portion after bending is long. [Solution] The present invention is provided with: a clamp body that grips a straight metal pipe; a bending arm that grips the metal pipe forward of the location where the clamp body clamps and forward of a location where bending is carried out, and is turnable about a rotation axis positioned at one lateral part side in relation to the metal pipe; a heating means for heating the bending location; a supporting means that is disposed below the metal pipe and that moveably supports the clamp body in the metal pipe axial direction; and a moving means that is disposed in a region below the metal pipe and on the lateral part side opposite the rotation axis, and moves the clamp body.
Inventors:
MATSUMOTO NOBUHIKO (JP)
MIYAGAWA TADANOBU (JP)
YOSHITOME TAKAHIRO (JP)
YATABE KENJI (JP)
SUGIYAMA KENJI (JP)
MIYAGAWA TADANOBU (JP)
YOSHITOME TAKAHIRO (JP)
YATABE KENJI (JP)
SUGIYAMA KENJI (JP)
Application Number:
PCT/JP2014/005304
Publication Date:
May 07, 2015
Filing Date:
October 20, 2014
Export Citation:
Assignee:
DAI ICHI HIGH FREQUENCY CO LTD (JP)
International Classes:
B21D7/025; B21D7/16
Foreign References:
JPS62168617A | 1987-07-24 | |||
JPS54153762A | 1979-12-04 | |||
JPH0675666U | 1994-10-25 | |||
JPH07314338A | 1995-12-05 | |||
JP2012207288A | 2012-10-25 | |||
JPH10170194A | 1998-06-26 | |||
US4686844A | 1987-08-18 | |||
EP2327486A1 | 2011-06-01 |
Attorney, Agent or Firm:
HIGUCHI, Morinosuke (JP)
Morinosuke Higuchi (JP)
Morinosuke Higuchi (JP)
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