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Patent Searching and Data


Title:
SEAL RING
Document Type and Number:
WIPO Patent Application WO/2019/097845
Kind Code:
A1
Abstract:
This seal ring is mounted to and seated in a mounting groove provided in one among an inner peripheral member and an outer peripheral member, which move reciprocally relative to each other, and brings a sealing surface into close contact with the other one among the inner peripheral member and the outer peripheral member to seal a fluid. The seal ring is composed of a combination of two members of an inner periphery side ring and an outer periphery side ring which are rubbery elastic bodies. The one member having the sealing surface, among the inner periphery side ring and the outer periphery side ring, is set to have a higher hardness than the other member. On the contact surface between the inner periphery side ring and the outer periphery side ring, a recess-and-protrusion fitting part is provided in the annular direction to restrict positional shifting in the axial direction of the inner periphery side ring and the outer periphery side ring.

Inventors:
SATO Hiroaki (2089 Nagakusa, Aso-sh, Kumamoto 31, 〒8692231, JP)
Application Number:
JP2018/035422
Publication Date:
May 23, 2019
Filing Date:
September 25, 2018
Export Citation:
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Assignee:
NOK CORPORATION (12-15, Shibadaimon 1-chome Minato-k, Tokyo 85, 〒1058585, JP)
International Classes:
F16J15/18; F16J15/3268
Domestic Patent References:
WO2013137199A12013-09-19
WO2012102250A12012-08-02
Foreign References:
JPH11336908A1999-12-07
JPS6268074U1987-04-28
Attorney, Agent or Firm:
KIRIYAMA Hiroshi et al. (NOMOTO & KIRIYAMA INTERNATIONAL PATENT OFFICE, Terao Building 8-4, Nishi-Shinbashi 2-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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