| 摘要 |
PROBLEM TO BE SOLVED: To prevent right and left output shafts from being elongated, to provide excellent vehicle loading performance, to reduce the number of parts, to reduce the size and the weight, to provide compatibility to a conventional device, to easily adjust and set bypass torque, to improve control precision, to provide excellent durability and reliability, and to generate sufficient differential limiting torque with good responsiveness. SOLUTION: First, second and third gears are arranged on the same rotational axis, fourth, fifth and sixth gears 62, 63, 64 to be meshed with the gears are arranged on the same rotational axis parallel to the rotational axis, and a pair of clutches are provided. The first gear train is formed of the first and fourth gears 62, the second gear train is formed of the second and fifth gears 63, the third gear train is formed of the third and sixth gears 64, and respective gear ratios are set to 0.9, 0.9×0.9, 1. Driving force rotates a differential case 51 and is transmitted to right and left drive shafts 14, 17 through a differential limiting mechanism part provided with a differential limiting multiple disc clutch 62 or transmitted to the first gear train, the clutch connection is controlled, and driving force is distributed.
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