Power transmission apparatus

Details Power transmission apparatus Power transmission apparatus

B - Operations, Transporting

60

K

74/96

B60K 17/35 (2006.01) B60K 17/346 (2006.01) F16D 35/00 (2006.01)

Patent

CA 1257106

ABSTRACT A power transmission apparatus including a transmission shaft to transmit an input power, a pair of driven transmission shafts which is capable to effect relative rotations to the transmission shaft, a differential device which connects said pair of driven transmission shafts and allows a differential rotation therebetween, and differential limitation means which limits the differential rotation when the velocity of the rotation of the differential rotation exceeds a predetermined value, said differential limitation means comprising: a first plurality of plates fixed on one of the driven transmission shafts, a clutch member disposed on the other of the driven transmission shafts and having a second plurality of plates which mates with said first plurality of plates through a predetermined clearance therebetween, a viscous fluid liquid-tightly filled around said first and second plurality of plates, and a cam mechanism which functions due to a viscous resistance Or the viscous fluid to force said clutch member towards a direction in which said first and second plurality of plates are fastened together at the time of a relativc rotation between said pair Or driven transmission shafts.

502624

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