Planetary gear transmission systems or components – Differential planetary gearing – Spur gear differential
Patent
1995-06-07
1996-10-08
Kwon, John T.
Planetary gear transmission systems or components
Differential planetary gearing
Spur gear differential
475252, F16H 308
Patent
active
055625622
ABSTRACT:
Disclosed is a differential gear assembly comprising: a case rotatable around a rotation axis in response to a driving force of an engine; first and second side gears coaxially arranged within the case and supported in such a manner that the first and the second side gears are individually rotatable around the rotation axis of the case with respect to the case, the first and the second side gears being adapted to be connected to first and second output shafts respectively; at least one pair of first and second pinion gears each of which has a center axis parallel to the rotation axis of the case, the first pinion gear having first and second gear portions, the second pinion gear having third and fourth gear portions, the first gear portion being engaged with the third gear portion, the second gear portion being engaged with the first side gear, and the fourth gear portion being engaged with the second side gear; and a holding member formed on the case and having a holding bore for holding the first and the third gear portions. The holding bore is brought into contact with entire outer peripheries of the first and the third gear portions in engagement so that the first and the third gear portions with each other can be rotated around each center axis within the holding bore against the friction between the first and the third gear portions and an inner bore surface of the holding bore.
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Kwon John T.
Tochigi Fuji Sangyo Kabushiki Kaisha
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