Torque distributor
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United States of America Patent
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Feb 25, 2014
Grant Date -
Oct 18, 2012
app pub date -
Dec 7, 2009
filing date -
Jan 22, 2009
priority date (Note) -
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Abstract
A torque distributor includes a friction-drive mechanism having a first roller rotatable together with a first rotary member, partly constituting a torque-transmission path to primary drive wheels, and a second roller rotatable together with a second rotary member, partly constituting a torque-transmission path to secondary drive wheels. Also provided is an eccentric-crank mechanism for revolving the second roller in a direction opposite to a rotation direction of power transmission of the second roller around an eccentric-shaft axis displaced from a second-roller rotation axis to produce a displacement of the second roller from a non-power-transmission position of non-frictional-contact with the first roller, thereby ensuring high-precision torque-distribution control with no reversal of a polarity of moment acting on a rotational-position-control system for eccentric cranks.
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