Title:
BEND PIPE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2020/021906
Kind Code:
A1
Abstract:
A metal bend pipe 1 having a bend portion 10 bent in a semi-circular arc shape, wherein an identification part 5, which enables one of the two end portions 10a and 10b of the bend portion 10 to be identified as the bending-start side or the bending-end side, is integrally formed as a protruding and/or recessed three-dimensional region. Thus, it is possible to easily and reliably identify which of the two end portions of the bend portion is the bending-start side or the bending-end side.
Inventors:
SE NAOKI (JP)
OKUDA SHOJI (JP)
FUJISAWA HIDEYUKI (JP)
OKUDA SHOJI (JP)
FUJISAWA HIDEYUKI (JP)
Application Number:
PCT/JP2019/023815
Publication Date:
January 30, 2020
Filing Date:
June 17, 2019
Export Citation:
Assignee:
NORITZ CORP (JP)
International Classes:
B21D53/06; B21C51/00; B21D7/025; B21D22/02
Foreign References:
| JP3704781B2 | 2005-10-12 | |||
| JP6052890B2 | 2016-12-27 | |||
| JPH0443424U | 1992-04-13 | |||
| JPH04258317A | 1992-09-14 | |||
| JP5728937B2 | 2015-06-03 | |||
| JP2851561B2 | 1999-01-27 | |||
| JP5885322B1 | 2016-03-15 | |||
| JP5771821B2 | 2015-09-02 | |||
| JP4506766B2 | 2010-07-21 |
Attorney, Agent or Firm:
TSUTSUI Masato (JP)
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