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Title:
SEAL STRUCTURE, SEALING METHOD, AND COUPLING EQUIPPED WITH SAID SEAL STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2018/079633
Kind Code:
A1
Abstract:
Provided are a seal structure and sealing method that ensure sealing performance over a long period even when used for low-temperature fluids, as well as a coupling which is equipped with this seal structure. The seal structure is provided with an annular gasket 6 interposed between a first and a second member 2, 3. The gasket-facing face of the first member 2 is provided with: an annular protrusion 42; an inclined surface 43 provided sloping in a direction away from the gasket 6 from the annular protrusion 42 to the inner-diameter side; and an outer-diameter-side surface 41 provided on the outer-diameter side of the protrusion 42.

Inventors:
HIRAMATSU KOJI (JP)
YAMAJI MICHIO (JP)
DAIDO KUNIHIKO (JP)
YAKUSHIJIN TADAYUKI (JP)
YANAGIDA YASUMASA (JP)
FUNAKOSHI TAKASHI (JP)
Application Number:
PCT/JP2017/038599
Publication Date:
May 03, 2018
Filing Date:
October 26, 2017
Export Citation:
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Assignee:
FUJIKIN KK (JP)
International Classes:
F16J15/06; F16J15/08; F16J15/10; F16K27/00; F16L19/03; F16L23/02; F16L23/032; F16L23/16
Foreign References:
JP2016014468A2016-01-28
JP2014084886A2014-05-12
JP2010090939A2010-04-22
JP2015175518A2015-10-05
JPS6147175U1986-03-29
Attorney, Agent or Firm:
MATSUMURA, Naoto et al. (JP)
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