Title:
GASKET AND FLOW PASSAGE JOINT STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/059267
Kind Code:
A1
Abstract:
In a state prior to an annular primary seal 11 of a gasket 3 being press-fitted into an annular primary seal groove 2b of a fluid device 2, a tapered surface 14 is formed on the outer end, in the axial direction, of an inner circumferential surface 3a of the gasket 3, said tapered surface having a gradually expanding diameter from the inside in the axial direction towards an outer end in the axial direction. A diameter-expansion starting point P1 of the tapered surface 14 is positioned within a range from a deformation source position P2, which is the starting point for deformation of the inner circumferential surface 3a as a result of the primary seal 11 receiving external force from the fluid device 2 when the primary seal 11 is press-fitted into the primary seal groove 2b, to a central position P3, in the axial direction, of the inner circumferential surface 3a.
Inventors:
OHMAE KIYOTAKA (JP)
KATANAYA MASASHI (JP)
KUROSAKI AYUMI (JP)
HIGUCHI SHINGO (JP)
TESHIMA KAZUKIYO (JP)
KATANAYA MASASHI (JP)
KUROSAKI AYUMI (JP)
HIGUCHI SHINGO (JP)
TESHIMA KAZUKIYO (JP)
Application Number:
PCT/JP2021/021447
Publication Date:
March 24, 2022
Filing Date:
June 04, 2021
Export Citation:
Assignee:
NIPPON PILLAR PACKING (JP)
International Classes:
F16J15/10; F16L17/067; F16L23/02
Foreign References:
| JP2006083972A | 2006-03-30 | |||
| JP2006316806A | 2006-11-24 | |||
| JP2019210984A | 2019-12-12 | |||
| JP2018096457A | 2018-06-21 | |||
| JP2019173844A | 2019-10-10 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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