管継手構造 - Sekisui Chemical Co.,Ltd.

Title:

管継手構造

Document Type and Number:

Japanese Patent JP7372804

Kind Code:

B2

Abstract:

To provide a joint structure between a metal pipe and a resin pipe which prevents damage of a resin member by reducing fastening torque and attains high cut-off performance even with low torque.SOLUTION: A metal pipe 10 and a resin pipe 20 in a pipe joint structure 1 are joined by bolt joint between flanges 13, 30 of these pipes. The flange of at least one of the pipes is a loose flange 30 including an annular core material 33 made of a metal and a cover layer 34. The cover layer 34 contains a thermoplastic resin as a main component.SELECTED DRAWING: Figure 1

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Inventors:

▲高▼井啓司
Hiroaki Kondo
Takeshi Kato
Yoshihisa Kojima
Enatsu Kentaro

Application Number:

JP2019178818A

Publication Date:

November 01, 2023

Filing Date:

September 30, 2019

Export Citation:

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Assignee:

Sekisui Chemical Co.,Ltd.

International Classes:

F16L23/02; F16L47/24

Domestic Patent References:

JP62122996U
JP2004169797A
JP2017190850A
JP2013095103A
JP2011033173A
JP59147981U
JP2019132329A
JP9096387A
JP2015086941A
JP5272671A

Foreign References:

US5829793
CN203442367U

Attorney, Agent or Firm:

Noboru Watanabe
Harada Thirty Yoshi
Tetsumi Aono

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