Title:
CONNECTION STRUCTURE FOR DIFFERENT KINDS OF METAL TUBES
Document Type and Number:
WIPO Patent Application WO/2007/007917
Kind Code:
A1
Abstract:
A structure for connection between a metal bellows tube (A) and a metal tube (B)
of a different material from the bellows tube. A connection section of the bellows
tube has a straight tube section (1) in the bellows tube, a nipple (2), a bellows
tube reinforcing section (3), and a fastening collar (4), and they are fitted
and secured to each other in that order from the inside of the tube. The nipple has
a base section (2-1) joined to the reinforcing section and a connection end section
(2-2) extending to the metal tube side. The fastening collar has a small diameter
section (4-1) on the metal tube side and a large diameter section (4-2) on the bellows
tube side. A connection section of the metal tube is constructed from a connection
end section (6) of the metal tube and a sleeve (7) secured to the outer side of the
connection section. The sleeve (7) has a base section (7-1) joined to the connection
section and a fitting end section (7-2) extending to the bellows tube side. The
fitting end section of the sleeve is fitted on the small diameter section of the
fastening collar, and the outer surface of the connection end section of the nipple
and the inner surface of the connection end section of the metal tube are bonded
and fixed by heat curing resin, with end surfaces of the bellows tube reinforcing
section and of the fastening collar and an end surface of the metal tube made to
be in contact or to be close to each other.
Inventors:
NAKANO YOSHIO (JP)
KATAYAMA TOSHIYUKI (JP)
YAGI TAKASHI (JP)
MATSUI MASAMICHI (JP)
KATAYAMA TOSHIYUKI (JP)
YAGI TAKASHI (JP)
MATSUI MASAMICHI (JP)
Application Number:
PCT/JP2006/314323
Publication Date:
January 18, 2007
Filing Date:
July 13, 2006
Export Citation:
Assignee:
NICHIRIN CO LTD (JP)
NAKANO YOSHIO (JP)
KATAYAMA TOSHIYUKI (JP)
YAGI TAKASHI (JP)
MATSUI MASAMICHI (JP)
NAKANO YOSHIO (JP)
KATAYAMA TOSHIYUKI (JP)
YAGI TAKASHI (JP)
MATSUI MASAMICHI (JP)
International Classes:
F16L13/10; F16L33/26
Foreign References:
| JP2004205017A | 2004-07-22 | |||
| JP2004205018A | 2004-07-22 | |||
| JP2000220781A | 2000-08-08 | |||
| JPH11182767A | 1999-07-06 | |||
| JPS5093619U | 1975-08-06 | |||
| JPS5080816U | 1975-07-11 | |||
| JP2004135884A | 2004-05-13 | |||
| JP2002195474A | 2002-07-10 | |||
| JPH07310161A | 1995-11-28 |
Other References:
See also references of EP 1903269A4
Attorney, Agent or Firm:
KAJI, Yoshiyuki (Nishinakajima Yodogawa-ku, Osaka-sh, Osaka 11, JP)
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