Driving force distribution device
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United States of America Patent
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-
Jun 11, 2013
Grant Date -
Apr 26, 2012
app pub date -
Sep 19, 2011
filing date -
Oct 26, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A driving force distribution device includes a sub transmission, a friction clutch, a rotary drive member fixed to an output shaft of an actuator, a friction clutch driving cam to change a pressing force of the friction clutch, a shift cam to shift the sub transmission by converting rotary motion of the actuator into linear motion, and a ratchet lever provided so that a shaft line thereof in a normal direction with respect to the outer surface of the rotary drive member is a rotation center. The ratchet lever is disengaged from the shift cam and is rotated when the rotary drive member is rotationally driven to one side from a predetermined position starting at control origin of the shift cam, and the ratchet lever is rotated in conjunction with the shift cam when the rotary drive member is rotationally driven in a direction opposite to the one side.
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