Title:
RESIN PIPING MEMBER, RESIN PIPE JOINT, AND PIPING PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/072886
Kind Code:
A1
Abstract:
This resin piping member (1) comprises: a pipe main body part (2) that has an internal flow path (P) that allows a fluid to flow; and two or more weld end parts (3a, 3b, 3c) that are respectively provided to two or more open sections (A1, A2, A3) of the internal flow path (P) and that are to abut and be welded to end parts of other resin piping members. At least one of the weld end parts (3a, 3b, 3c) is provided with an expanded-inner-diameter section (4) that has a larger inner diameter than the pipe main body part (2). An inner surface of the expanded-inner-diameter section (4) comprises inclined surfaces (5a, 5b) that are inclined with respect to a plane that is orthogonal to the center axis (C) of the internal flow path (P) at the location of the weld end part (3a, 3b, 3c) and are configured such that the inclination angle (θ1, θ2) of the inner surface with respect to the plane changes along the axial direction of the internal flow path (P).
Inventors:
TAMARIBUCHI SEIYA (JP)
YOKOYAMA MAKOTO (JP)
YOKOYAMA MAKOTO (JP)
Application Number:
PCT/JP2015/080440
Publication Date:
May 04, 2017
Filing Date:
October 28, 2015
Export Citation:
Assignee:
MIRAIAL CO LTD (JP)
International Classes:
F16L47/02
Foreign References:
| JPH07156276A | 1995-06-20 | |||
| JPH07232379A | 1995-09-05 | |||
| JP2003266544A | 2003-09-24 | |||
| JP2008014324A | 2008-01-24 | |||
| JP2014025575A | 2014-02-06 | |||
| JP2007040329A | 2007-02-15 | |||
| JPS4914734A | 1974-02-08 | |||
| JP2002504980A | 2002-02-12 | |||
| JPH0699501A | 1994-04-12 | |||
| JP2005324392A | 2005-11-24 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
Download PDF: