PIPE JOINT

WIPO Patent Application WO/2005/008120

A1

A pipe joint capable of solving a problem with a conventional pipe joint wherein a defect occurs when, after a nut is removed and a pipe and a sleeve are withdrawn from a joint body, the pipe is re-joined by using these parts, i.e., airtightness and pressure resistance are not secured. The pipe joint comprises the joint body (1) having a joining hole (50) and a male screw part (58), the sleeve (3), and the nut (2). The nut (2) is screwed onto the male screw part (58) in the state of the pipe (10) and the sleeve (3) being inserted into the joining hole (50) to join the pipe (10) to a joining hole (50) through the sleeve (3). The sleeve (3) is fitted to the pipe (10) and the joint body (1) by the screwing of the nut (2) and cut off at a connection part (32) connecting a sleeve body (31) to a separating part (33). Then the sleeve (3) cannot join the tube (10) to the joining hole (50) after the nut (2) is removed and the tube (10) and the sleeve (3) are withdrawn from the joining hole (50).

JPS589311	[Title of the Invention] Luda Idokanyou Renketsusouchi
JPS59122483	[Title of the device] Tube fitting

ASAKAWA MAMORU (JP)
TANAKA JUNICHIROU (JP)
FUJINAMI ISAO (JP)
NAKATA HARUO (JP)

PCT/JP2004/009920

January 27, 2005

July 12, 2004

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IHARA SCIENCE CORP (JP)
DAIKIN IND LTD (JP)
ASAKAWA MAMORU (JP)
TANAKA JUNICHIROU (JP)
FUJINAMI ISAO (JP)
NAKATA HARUO (JP)

F16L19/08; F16L19/06; (IPC1-7): F16L19/08

JPS6126705Y2	1986-08-09
JP2001159481A	2001-06-12
JP2000304180A	2000-11-02

Ono, Yukio (1-4-19 Minamimori-machi, Kita-ku, Osaka-sh, Osaka 54, JP)

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