ELECTRIC BICYCLE HUB UNIT, AND ELECTRIC BICYCLE INCLUDING THE HUB UNIT
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United States of America Patent
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Issued Date -
Apr 5, 2012
app pub date -
Jun 30, 2011
filing date -
Sep 30, 2010
priority date (Note) -
Abandoned
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Abstract
In an electric bicycle, an assist driving force is generated by a hub unit mounted in a front wheel. The hub unit includes a hub including a hub casing and a lid closing an open end of the hub casing, a motor, and a planetary gear deceleration mechanism which decelerates rotation of the motor and transmits the decelerated rotation to the hub. The motor is located adjacent the hub casing, and the planetary gear deceleration mechanism is located adjacent the lid. A roller braking device is attached to the lid.
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