| 摘要 |
A differential device for 4WD vehicles having a reduced size and capable of being produced at lower costs makes it possible to select between a 2WD state, a differential-free 4WD state, and a differential-locked 4WD state. The differential device includes a differential case, a side gear, a hub, and a switching mechanism which establishes and interrupts a connection between each of the differential case, the side gear, and the hub. The switching mechanism includes, among other possible features, a first sleeve, a second sleeve which is separate from the first sleeve, and a pin. A sole actuator moves the second sleeve between first, second and third positions to establish the 2WD state, the differential-free 4WD state, and the differential-locked 4WD state.
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