IN-WHEEL MOTOR UNIT FOR A VEHICLE
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United States of America Patent
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N/A
Issued Date -
Mar 10, 2016
app pub date -
Mar 28, 2014
filing date -
Apr 11, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An in-wheel motor unit for a vehicle having a drive output shaft of a drive unit body and a wheel hub shaft supported by a hub bearing with respect to a case member of the drive unit body are connected via a displacement absorption mechanism. The displacement absorption mechanism comprises an output shaft side drive transmission fitting portion allowing a first inner tooth portion of the drive output shaft to mesh with a first outer tooth portion of a gear coupling shaft, and a hub shaft side drive transmission fitting portion allowing a second inner tooth portion of the wheel hub shaft to mesh with a second outer tooth portion of the gear coupling shaft, the second outer tooth portion being arranged axially in the vehicle exterior side with respect to a wheel mounting surface on which a tire wheel is mounted to the wheel hub.
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