PURPOSE: To improve the traveling performance of a vehicle by interposing a differential restricting device between the input side of a first differential gear and the other output side and incresing the torque on the lower speed side while reducing the torque on the higher speed side.
CONSTITUTION: An intermediate differential gear 20 as a first differential gear and a front-wheel differential gear 30 as a second differential gear, are provided in the casing 13 of a transmission 10. A mount case 43 is rotatably supported by an additional housing 16, and a cylindrical hollow shaft 44 which is rotatably interposed between a front axle 42 and a hollow shaft part 21a, is inserted in the case 43. A differential restricting device 50 is provided in the larger diameter bore 43a of the case 43, and causes a differential restricting torque to be generated between plates 53, 54 due to the viscosity resistance of silicone oil contained in both of a case 51 and a hub 52 when a relative rotation occurred between these case 51 and hub 52.
TAKIMURA KEISUKE
SASAKI TAMAKI
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