JOINT AND CONSTRUCTION METHOD FOR FLEXIBLE TUBE

Title:

JOINT AND CONSTRUCTION METHOD FOR FLEXIBLE TUBE

Document Type and Number:

WIPO Patent Application WO/2022/071504

Kind Code:

A1

Abstract:

Provided is a flexible tube joint, and a method for installing a flexible tube, with which it is possible to reduce size while preventing detachment of the flexible tube. A tube joint 1 is a flexible tube joint that connects a flexible tube T1 having a deformation section T11 in which at least a part of the outer circumference is formed widening to the outer diameter side so as to be wider than the peak section of the tube, said flexible tube joint comprising: a push nut 3 mounted closer than the deformation section T11 to the side opposite the tip end of the flexible tube T1; a joint body 2 into which the tip end of the flexible tube T1 is inserted together with the end part of the push nut 3; an engagement mechanism in which the push nut 3 is engaged with the joint body 2; and a ring-shaped seal member positioned inside the joint body 2 and affixed to the flexible tube T1. The push nut 3 and the joint body 2 engage, whereby the flexible tube T1 is connected, and in the connected state, the deformation section T11 of the flexible tube T1 is locked to the end part of the push nut 3 on the joint body inner side, and the flexible tube T1 is retained.

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WO/2006/012598	ADAPTOR AND METHOD FOR CONVERTING STANDARD TUBE FITTING/PORT TO PUSH-TO-CONNECT TUBE FITTING/PORT
WO/2005/045299	PLUG-IN CONNECTOR FOR TUBE AND HOSE LINES WITH SPRING CLIP GUIDE

Inventors:

INOTANI TAKAAKI (JP)
NISHIKATA NOBUHIRO (JP)
TOHYAMA YASUSHI (JP)

Application Number:

PCT/JP2021/036202

Publication Date:

April 07, 2022

Filing Date:

September 30, 2021

Export Citation:

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Assignee:

HITACHI METALS LTD (JP)

International Classes:

F16L37/088; F16L33/00

Foreign References:

JPH06281066A	1994-10-07
JPS5027926Y1	1975-08-19
JP2018173108A	2018-11-08
JP2010053973A	2010-03-11
JP2012210666A	2012-11-01
JPH06226382A	1994-08-16
JP2010131653A	2010-06-17
JP2002267064A	2002-09-18
JPH07239077A	1995-09-12
JP2000055261A	2000-02-22
JPH025689U	1990-01-16

Attorney, Agent or Firm:

WAKI, Hikaru et al. (JP)

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