Title:
PIPE JOINT
Document Type and Number:
WIPO Patent Application WO/2010/131609
Kind Code:
A1
Abstract:
A pipe joint comprising: a pressing nut into which a flexible pipe is inserted; a joint body into which the pressing nut is partially inserted; an elastic means which is released from locking engagement when pressed by the tip of the flexible pipe; a seal member; a retainer which engages with the flexible pipe; and an engagement mechanism for holding the pressing nut at a predetermined position relative to the joint body. The engagement mechanism comprises: a stop ring; an annular groove formed in the outer surface of the pressing nut so as to contain and support the stop ring; and engaging grooves formed in the inner surface of the joint body so as to contain and support the stop ring and to be communicated with each other. Until the connection of the flexible pipe is completed, the stop ring is held engaged with the annular groove and a first engaging groove so as to straddle the grooves. When the flexible pipe is pulled after the completion of the connection, the stop ring moves from the first engaging groove to a second engaging groove to cause the pressing nut to be pulled out of the joint body. This allows the user to confirm that the flexible pipe is normally connected.
More Like This:
| JP4125719 | Quick connector for increased safety |
| JP2013029193 | PIPE COUPLING |
Inventors:
HAMAGUCHI TAMAKI (JP)
MINAMI TOMOYUKI (JP)
SATOH FUMITAKA (JP)
INOTANI TAKAAKI (JP)
ISHIBE FUMIKAZU (JP)
ARAKI SATORU (JP)
UCHIUMI YOUICHI (JP)
OKIAYU TAKUJI (JP)
HATTORI AKIHIRO (JP)
MINAMI TOMOYUKI (JP)
SATOH FUMITAKA (JP)
INOTANI TAKAAKI (JP)
ISHIBE FUMIKAZU (JP)
ARAKI SATORU (JP)
UCHIUMI YOUICHI (JP)
OKIAYU TAKUJI (JP)
HATTORI AKIHIRO (JP)
Application Number:
PCT/JP2010/057832
Publication Date:
November 18, 2010
Filing Date:
May 07, 2010
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
TOKYO GAS CO LTD (JP)
SANKOH CO LTD (JP)
HAMAGUCHI TAMAKI (JP)
MINAMI TOMOYUKI (JP)
SATOH FUMITAKA (JP)
INOTANI TAKAAKI (JP)
ISHIBE FUMIKAZU (JP)
ARAKI SATORU (JP)
UCHIUMI YOUICHI (JP)
OKIAYU TAKUJI (JP)
HATTORI AKIHIRO (JP)
TOKYO GAS CO LTD (JP)
SANKOH CO LTD (JP)
HAMAGUCHI TAMAKI (JP)
MINAMI TOMOYUKI (JP)
SATOH FUMITAKA (JP)
INOTANI TAKAAKI (JP)
ISHIBE FUMIKAZU (JP)
ARAKI SATORU (JP)
UCHIUMI YOUICHI (JP)
OKIAYU TAKUJI (JP)
HATTORI AKIHIRO (JP)
International Classes:
F16L37/12; F16L33/00; F16L33/28
Foreign References:
| JP2009079755A | 2009-04-16 | |||
| JP2009058094A | 2009-03-19 | |||
| JP2008281075A | 2008-11-20 | |||
| JP2008038925A | 2008-02-21 | |||
| JP2008032105A | 2008-02-14 | |||
| JP2007315549A | 2007-12-06 | |||
| JP2003056776A | 2003-02-26 | |||
| JP3538090B2 | 2004-06-14 | |||
| JP2004028112A | 2004-01-29 | |||
| JP2009008219A | 2009-01-15 |
Other References:
See also references of EP 2431645A4
Attorney, Agent or Firm:
TAKAISHI Kitsuma (JP)
Kitsuma Takaishi (JP)
Kitsuma Takaishi (JP)
Download PDF:
Claims: