Title:
PIPE JOINT, AIR CONDITIONER, METHOD FOR PRODUCING CONNECTING PIPE, CONNECTING PIPE, AND CONNECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/150858
Kind Code:
A1
Abstract:
The pipe joint (10) is a pipe joint (10) for connection of a connecting pipe (101), and has a pipe joint body (20) and a nut member (30). When the connecting pipe (101) having formed therein a bulging portion (101a) that bulges in the diametrical direction is connected to this pipe joint (10), a male thread portion (25) of the pipe joint body (20) threadably mates with a female thread portion (33) of the nut member (30), thereby wedging the bulging portion (101a) between a tapered surface (22) and a tapered surface (34). The joined sections of the bulging portion (101a) and of the tapered surface (22) form a first seal portion, while the joined sections of the bulging portion (101a) and of the tapered surface (34) form a first seal portion. The tapered surface (24) of the pipe joint body (20) is joined to the tapered surface (34) of the nut member (30), forming a third seal portion.
Inventors:
MAKINO HIROAKI (JP)
Application Number:
PCT/JP2013/056340
Publication Date:
October 10, 2013
Filing Date:
March 07, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MAKINO HIROAKI (JP)
MAKINO HIROAKI (JP)
International Classes:
F16L19/02
Foreign References:
| JP2011169465A | 2011-09-01 | |||
| JPS5817982Y2 | 1983-04-12 | |||
| US5487294A | 1996-01-30 | |||
| JP2003074768A | 2003-03-12 | |||
| JPS63144827A | 1988-06-17 | |||
| JP2003074768A | 2003-03-12 |
Other References:
See also references of EP 2835568A4
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
Mitsuru Kimura (JP)
Mitsuru Kimura (JP)
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