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Patent Searching and Data


Title:
PIPING CONNECTION STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2014/097809
Kind Code:
A1
Abstract:
Provided is a piping connection structure which has the function of retaining a pipe body, the function being obtained using a member different from a resin tube. Also, the piping connection structure has improved sealing properties and can reduce the amount of permeation of fuel. A resin tube (3) is provided with: a tube body section (31); a first expanded diameter section (32) which extends from an axial end of the tube body section (31) in such a manner that the diameter of the first expanded diameter section (32) is expanded and which axially positions seal members (71, 72) by axially sandwiching the seal members (71, 72) between the first expanded diameter section (32) and a retainer (4); and a second expanded diameter section (33) which is formed in such a manner that the diameter thereof is further expanded to be larger than that of the first expanded diameter section (32), the second expanded diameter section (33) being in contact with the outer peripheral side of the seal members (71, 72) and being connected to the retainer (4) while being in contact therewith. The thickness (H32) of the first expanded diameter section (32) is greater than or equal to the thickness (H31) of the tube body section (31).

Inventors:
TAKIMOTO, Yorihiro (1, Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
MIZUTANI, Koji (1, Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
KATAYAMA, Kazutaka (1, Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
Application Number:
JP2013/081307
Publication Date:
June 26, 2014
Filing Date:
November 20, 2013
Export Citation:
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Assignee:
TOKAI RUBBER INDUSTRIES, LTD. (1 Higashi 3-chome, Komaki-shi Aichi, 50, 〒4858550, JP)
International Classes:
F16L37/12; F02M37/00
Foreign References:
JP2008261450A2008-10-30
JPH0439492A1992-02-10
JP2010071465A2010-04-02
JP2006200738A2006-08-03
JP2001500230A2001-01-09
JP2012117621A2012-06-21
JPH07260072A1995-10-13
JPH08121666A1996-05-17
JP4937426B12012-05-23
Other References:
See also references of EP 2937614A4
Attorney, Agent or Firm:
KYORITSU INTERNATIONAL (2-5 Meieki 3-chome, Nakamura-ku Nagoya-sh, Aichi 02, 〒4500002, JP)
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