| 摘要 |
PROBLEM TO BE SOLVED: To provide an innovated four-wheel drive system configuration in a hydraulic drive vehicle equipped in its axle drive device with a hydraulic motor for running and a hydraulic motor for turning. SOLUTION: The hydraulic drive vehicle includes a pair of axle drive devices 2 and 3 installed fore and aft a vehicle body, each of which is provided with differential mechanisms 20 and 30 to couple a pair of axles 52L and 52R and axles 53L and 53R in differential motions, wherein the differential mechanisms 20 and 30 are provided with hydraulic motors for traveling 22M and 32M for driving the axles 52L and 52R and the axles 53L and 53R at the same speed and motors for turning 21M and 31M for rotating the axles in differential motions, and outputs of the motors for traveling 22M and 32M of the differential mechanisms 20 and 30 are synchronized, while outputs of the motors for turning 21M and 31M of the mechanisms 20 and 30 are synchronized. COPYRIGHT: (C)2005,JPO&NCIPI
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