| 摘要 |
<p>A driving force transmission device (10) for four-wheel-drive vehicle (12) based on the two-wheel drive of rear wheels or front wheels is provided. In the case of the two-wheel drive of rear wheels, a multi-disc clutch mechanism (106) for controlling the driving force distribution to a front wheel output shaft (118), and a disconnection/connection mechanism (76) for disconnecting and connecting a front wheel differential (22) and a left front wheel drive shaft (68) are provided, and in the two-wheel drive of rear wheels, the dragging torque of the multi-disc clutch mechanism is made smaller than the friction torque of a front wheel driving force transmission section, and the front wheel differential (22) and the left front wheel drive shaft (68) are disconnected by the disconnection/connection mechanism, thereby the rotation of the front wheel driving force transmission section is stopped.</p> |
