Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Condition responsive
Reexamination Certificate
2007-10-09
2007-10-09
Charles, Marcus (Department: 3682)
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Condition responsive
C474S199000, C192S048920, C192S045000
Reexamination Certificate
active
10786618
ABSTRACT:
A power transmission device includes a first one-way clutch that transmits a rotational power of a pulley to a rotating shaft, and a second one-way clutch that transmits a rotational power of a rotor of a motor to the rotating shaft. The first one-way clutch is of inner cam type in which an engagement cam-surface is formed in an outer periphery of a first inner ring, while the second one-way clutch is of outer cam type in which an engagement cam-surface is formed in an inner periphery of a second outer ring. This arrangement improves engagement performance of the first one-way clutch as well as reducing heat generation of the second one-way clutch, so that the lifetime of grease is prolonged.
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Adaniya Taku
Arai Tomoharu
Fujiwara Hideki
Ichihara Takahiro
Kanai Akinobu
Charles Marcus
Koyo Seiko Co. Ltd.
Nixon & Vanderhye P.C.
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