Power transmission device for a four wheel drive vehicle.

摘要

A centre differential gear (33) for use in a power transmission device for a full time four wheel drive vehicle, comprising a diff-carrier (4l) coupled to a power transmitting front casing (25) covering a front diff-carrier (26) of a front wheel differential gear (5) and arranged co-axially with the front diffcarrier (26), one side gear (42) coupled to the front wheels and another side gear (43) coupled to a gear mount casing (32) which transmits power to the rear wheels. The diff-carrier (4l) of the centre differential gear (33) is supported between the side gear (42) on the side driving the front wheel differential gear (5) and the gear mount casing (32) in cantilever fashion such that the other side gear (43) is spline coupled directly to the gear mount casing (32) without passing through the diff-carrier (4l).