Differential apparatus with two wheel/four wheel drive switching

Planetary gear transmission systems or components – Differential planetary gearing – Bevel gear differential

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Details

180247, 192 85V, 192 91R, 192 6982, 475248, B60K 2308, F16H 4806

Patent

active

06015361&

ABSTRACT:
A differential apparatus includes a differential casing, a pair of output side gears disposed in the differential casing, a differential mechanism distributing driving force of an engine, a clutch for operatively connecting the differential casing with the axles of the vehicle, an actuator for releasing the clutch from its connecting operation, and an urging member for causing the clutch to connect the differential casing with the axles of the vehicle. When the actuator is inactivated, the urging member serves to attain the connecting operation of the clutch. Therefore, even if the actuator is in a bad condition, four-wheel driving condition of the vehicle can be maintained. Therefore, the differential apparatus allows the vehicle to escape from a bad road.

REFERENCES:
patent: 5098360 (1992-03-01), Hirota
patent: 5149309 (1992-09-01), Guimbretiere
patent: 5176591 (1993-01-01), Krisher
patent: 5740895 (1998-04-01), Bigley
patent: 5890989 (1999-04-01), Yamazaki et al.

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