Title:
SEAL STRUCTURE USING O-RING
Document Type and Number:
WIPO Patent Application WO/2018/105094
Kind Code:
A1
Abstract:
A mounting groove (6) of a seal structure (3) using an O-ring (5) is defined by: a groove bottom surface (11); an acute angle side groove side surface (12) inclined at an acute angle contiguously to the inner circumferential edge of the groove bottom surface (11); and an obtuse angle side groove side surface (13) inclined at an obtuse angle contiguously to the outer circumferential edge of the groove bottom surface (11). The O-ring (5) is mounted in a state of being pushed and expanded to the acute angle side groove side surface (12). The O-ring (5) is constrained, in the mounting groove (6), between the groove bottom surface (11) and the acute angle side groove side surface (12). The O-ring (5) is prevented from falling off from the mounting groove (6). A groove width is constant or increases from the groove bottom surface (11) toward a groove opening (14). Work for mounting the O-ring (5) on the mounting groove (6) is easy, and processing for the mounting groove (6) is also easy.
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Inventors:
MOCHIDUKI YOSHIHIKO (JP)
KODAIRA TAKEO (JP)
KOBAYASHI SYUHEI (JP)
TAKADA YOSHIMITSU (JP)
KODAIRA TAKEO (JP)
KOBAYASHI SYUHEI (JP)
TAKADA YOSHIMITSU (JP)
Application Number:
PCT/JP2016/086647
Publication Date:
June 14, 2018
Filing Date:
December 08, 2016
Export Citation:
Assignee:
HARMONIC DRIVE SYSTEMS (JP)
International Classes:
F16J15/10
Foreign References:
| JP2016534299A | 2016-11-04 | |||
| JP2010223369A | 2010-10-07 | |||
| JPH05240356A | 1993-09-17 | |||
| JP2009144735A | 2009-07-02 | |||
| JP2008032033A | 2008-02-14 |
Other References:
See also references of EP 3553351A4
Attorney, Agent or Firm:
YOKOZAWA Shiro (JP)
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