Title:
ONE-WAY CLUTCH SPRING
Document Type and Number:
WIPO Patent Application WO/2004/063589
Kind Code:
A1
Abstract:
A one-way clutch spring (6) intended to reduce drag torque while retaining the engagement characteristics of one-way clutches. Teeth (6c) extended within pockets (6p) in which engagement members are disposed are bent in advance toward the side which becomes the inner side when they are disposed in an annular space (4) so as to have bends (6d, 6e, 6f) at the proximal end on the column (6b) side and to form an angle of inclination (&agr ) of 20º- 30º with the base (6a). Further, the teeth have a range of spring constant such that when they are disposed in the annular space to urge the engagement members, the angle of inclination (β) with the base increases to exceed the angle of inclination (&agr ) by an amount of 5º - 15º. Further, the height of the front end of the tooth relative to the base is greater than that of the top of the second bend (6e) relative to the base, and the three bends (6d, 6e, 6f) each have their center of curvature positioned on the side of an inner ring (2) with the base used as a reference and their radius of curvature is 0.2 mm - 0.6 mm.
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| WO/1997/030293 | LEVER CLUTCH/BRAKE |
| JP2000065096 | FREE WHEEL COUPLING |
| WO/2022/186510 | CENTRIFUGAL CLUTCH WITH REDUCED SHIFT SHOCK, AND TRANSMISSION HAVING SAME |
Inventors:
MIURA YOSHIHISA (JP)
Application Number:
PCT/JP2004/000132
Publication Date:
July 29, 2004
Filing Date:
January 09, 2004
Export Citation:
Assignee:
KOYO SEIKO CO (JP)
MIURA YOSHIHISA (JP)
MIURA YOSHIHISA (JP)
International Classes:
F16D41/069; F16D41/07; (IPC1-7): F16D41/07
Foreign References:
| JPH0276234U | 1990-06-12 | |||
| JPH0586044U | 1993-11-19 |
Other References:
CHESNEY DAVID R. ET AL.: "Generalized equations for sprag one-way clutch analysis and design", SAE SPECIAL PUBLICATION - 1324 TRANSMISSION AND DRIVELINE SYSTEMS SYMPOSIUM 1998, THE SOCIETY OF AUTOMOTIVE ENGINEERS, 1998, pages 173 - 184, XP002903794
"Bane dai 3 han dai 4 satsu", 1995, JAPAN SOCIETY FOR SPRING RESEARCH, MARUZEN, pages: 292-303 - 317-320, XP002903795
See also references of EP 1584831A4
"Bane dai 3 han dai 4 satsu", 1995, JAPAN SOCIETY FOR SPRING RESEARCH, MARUZEN, pages: 292-303 - 317-320, XP002903795
See also references of EP 1584831A4
Attorney, Agent or Firm:
Kawasaki, Masaki (Keihan Marquis Umeda 5-5, Nishitemma 4-chome,
Kita-ku, Osaka-sh, Osaka 47, JP)
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