Title:
PIPE JOINT
Document Type and Number:
Japanese Patent JP2015108384
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent it from being erroneously determined that construction is normally completed, when connection confirmation is performed.SOLUTION: In a pipe joint 1, a joint body 2 and a push nut 3 are locked by a locking mechanism that comprises a first locking groove 271 formed in a joint body 2, an annular groove 32 formed on the push nut 3, and a stop ring 7. Additionally, the pipe joint 1 comprises a push-nut restraint release member 14 that unlocks the joint body 2 and the push nut 3 in association with movement of a seal member 5 after completion of pipe connection.
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Inventors:
ITANI TAKAAKI
HATTORI AKIHIRO
NISHIKATA NOBUHIRO
HAINO KAZUNARI
WADA TAKAHIRO
SHINTANI YOSHIHIRO
MINE SHOTA
UCHIUMI YOICHI
HATTORI AKIHIRO
NISHIKATA NOBUHIRO
HAINO KAZUNARI
WADA TAKAHIRO
SHINTANI YOSHIHIRO
MINE SHOTA
UCHIUMI YOICHI
Application Number:
JP2013250240A
Publication Date:
June 11, 2015
Filing Date:
December 03, 2013
Export Citation:
Assignee:
HITACHI METALS LTD
TOKYO GAS CO LTD
SANKO CO INC
TOKYO GAS CO LTD
SANKO CO INC
International Classes:
F16L37/12
Domestic Patent References:
| JP2011052762A | 2011-03-17 | |||
| JPH11218275A | 1999-08-10 | |||
| JP2007100847A | 2007-04-19 | |||
| JP2009079755A | 2009-04-16 | |||
| JP2004125129A | 2004-04-22 | |||
| JP2004044812A | 2004-02-12 | |||
| JPS5673228A | 1981-06-17 | |||
| JP2003240158A | 2003-08-27 | |||
| JP2000002383A | 2000-01-07 |
Foreign References:
| WO2010131609A1 | 2010-11-18 | |||
| US5570910A | 1996-11-05 |