JOINT

WIPO Patent Application WO/2019/058591

A1

Provided is a low-cost joint with which a reduction in the heat insulation effect of a transverse drain pipe can be prevented. This joint (1) is for connecting a hose (3) that is connected to a drain pipe of an air conditioner (22) and a tubular pipe (23) that guides drainage discharged from the air conditioner to the outdoors and has a heat-insulating material (28) exposed only at an end surface (23b) of the tubular pipe (23), and comprises a drain passage (1a) for supplying drainage introduced into the hose to the tubular pipe, a tubular first connection part (2) for connecting the hose and provided at one end of the drain passage, and a second connection part (4) for connecting the tubular pipe and provided at the other end of the drain passage. The second connection part is provided with a groove portion (4c) for accommodating the end surface of the tubular pipe and the entire inner circumferential surface and outer circumferential surface in the vicinity of the end surface. The groove portion of the second connecting part is formed by an inside tubular portion (4a) and an outside tubular portion (4b). The inside tubular portion (4a) may be provided with protrusions (4h-4j) at the outer circumferential surface that protrude in a direction perpendicular to the outer circumferential surface along the entire outer circumferential surface.

AKIYAMA HITOSHI (JP)

PCT/JP2018/008244

March 28, 2019

March 05, 2018

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YG AKIYAMA (JP)

F16L33/01; F16L33/24; F24F1/02; F24F13/22

WO2007066604A1

2007-06-14

JP2015068448A	2015-04-13
EP0152723A1	1985-08-28
JP2017145971A	2017-08-24
JP2017146083A	2017-08-24
US20160377317A1	2016-12-29
JPH09303649A	1997-11-28
JP2009543005A	2009-12-03
DE10126429A1	2002-12-05
EP1855043A1	2007-11-14

NAKAI Jun (JP)

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