Differential gear device for vehicle

摘要

A differential gear device for a vehicle is disclosed. The differential gear device is provided with a planetary gearing for producing differential motion having a ring gear with a toothed portion, and an electro-magnetic multiple clutch for limiting the differential motion. The electro-magnetic clutch is provided with a plurality of outer friction plates and a plurality of inner friction plates alternately positioned with the outer friction plates. An outer rotary member made of a nonmagnetic substance and integrally joined to the ring gear is provided for the electro-magnetic multiple clutch. A support member is made of a magnetic substance and conducts a magnetic force from the electro-magnet to the armature through the outer and inner friction plates to attract the armature to engage the outer and inner friction plates in cooperation with the armature. The support member is connected with the outer rotary member.