Title:
樹脂製管継手、配管及び、配管の製造方法
Document Type and Number:
Japanese Patent JP6752214
Kind Code:
B2
Abstract:
A resin pipe joint (1, 11) includes a tubular joint body portion (2, 12) defining an internal flow path (P) the internal flow path being configured to allow a fluid to flow therein; and two or more welding end portions (3-3c, 13a, 13b) respectively provided at two or more opening portions (A1-A3) of the internal flow path (P), each of the welding end portions being configured to be welded to an abutting welding end portion of other resin piping member, wherein the internal flow path (P) comprises: one of a branched point (Bp) that branches the internal flow path (P) into two or more portions; a curved point (Cp) that bends the internal flow path (P); and an internal diameter transition point (Tp) that changes an internal diameter of the internal flow path, in mid-way of the internal flow path, and wherein a length (Lh) from the branched point (Bp), the curved point (Cp) or the inner diameter transition point (Tp) to an end face of the welding end portion (3-3c, 13a, 13b) is shorter than half of a straight distance (SD, SD1-SD4) between two points adjacent to each other, the two points being selected from the group consisting of branched points (Bp), curved points (Cp) and inner diameter transition points (Tp) of piping to be formed using the resin pipe joints (1, 11).
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Inventors:
Haruya Tabuchi
Makoto Yokoyama
Makoto Yokoyama
Application Number:
JP2017547259A
Publication Date:
September 09, 2020
Filing Date:
October 28, 2015
Export Citation:
Assignee:
Miraial Co., Ltd.
International Classes:
F16L47/32; F16L47/02
Domestic Patent References:
| JP7156276A | ||||
| JP2006177513A | ||||
| JP2003097766A | ||||
| JP5134020Y1 | ||||
| JP2002295781A | ||||
| JP201146136A | ||||
| JP2003247687A | ||||
| JP11094176A | ||||
| JP2007078069A | ||||
| JP5256391A | ||||
| JP3032240U |
Attorney, Agent or Firm:
Axis International Patent Business Corporation