Title:
RESIN PIPE JOINT, PIPING, AND PIPING PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/072888
Kind Code:
A1
Abstract:
These resin pipe joints (1, 11) comprise: a pipe-shaped joint main body part (2, 12) that has an internal flow path (P) that extends so as to allow a fluid to flow; and two or more weld end parts (3a-3c, 13a, 13b) that are respectively provided to two or more open sections (A1-A3) of the internal flow path (P) and that are to abut and be welded to weld end parts of other resin piping members. The internal flow path (P) has, along the length thereof, a branch point (Bp) at which the internal flow path (P) branches into two or more branches, a curve point (Cp) at which the internal flow path (P) curves, or an inner-diameter transition point at which the inner diameter of the internal flow path changes. The distance (Lh) from the branch point (Bp), the curve point (Cp), or the inner-diameter transition point (Tp) to an end surface of the weld end parts (3a-3c, 13a, 13b) is shorter than half of the two-point straight-line distance (SD, SD1-SD4) between adjacent branch points (Bp), curve points (Cp), or inner-diameter transition points (Tp) of piping configured using the resin pipe joints (1, 11).
Inventors:
TAMARIBUCHI SEIYA (JP)
YOKOYAMA MAKOTO (JP)
YOKOYAMA MAKOTO (JP)
Application Number:
PCT/JP2015/080443
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 | |||
| JP2003097766A | 2003-04-03 | |||
| JP2003247687A | 2003-09-05 | |||
| JPH1194176A | 1999-04-09 | |||
| JP2007078069A | 2007-03-29 | |||
| JPH05256391A | 1993-10-05 | |||
| JP2006266397A | 2006-10-05 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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