Title:
PIPE CONNECTION STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2013/054815
Kind Code:
A1
Abstract:
Provided is a pipe connection structure with which hermetic sealing can be improved by means of a simple structure. A width dimension (W1) and a depth dimension (d) of a first holding groove (11c) are formed to be smaller than a width dimension (W2) of a second holding groove (11e). As a result, a first O-ring (13) fitted in the first holding groove (11c) can be made to project further outwards in a state of contact with an opposing face (11d) than a second O-ring (14) made of the same material and having the same shape and size which is fitted in a second holding groove (11e). This means that the first O-ring (13) is held between the opposing face (11d) of a male-side member (11) and an edge part (12c) of a female-side member (12), and the second O-ring (14) is held between the outer peripheral part of a convex part (11b) of the male-side member (11) and a wall surface of a concave part (12b) of the female-side member, so the sealing properties can be improved by means of a simple structure.
Inventors:
AKIIKE SHIGERU (JP)
SUZUKI KENICHI (JP)
SUZUKI KENICHI (JP)
Application Number:
PCT/JP2012/076228
Publication Date:
April 18, 2013
Filing Date:
October 10, 2012
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
F16L17/02; F16B7/04; F16J15/10; F25B41/00
Foreign References:
| DE10163931A1 | 2003-07-03 | |||
| JP2008101788A | 2008-05-01 | |||
| JP2007107585A | 2007-04-26 | |||
| JP2001004251A | 2001-01-12 |
Attorney, Agent or Firm:
EBISU International Patent Office (JP)
Patent business corporation エビス international patent firm (JP)
Patent business corporation エビス international patent firm (JP)
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Claims: