Driving force distributing apparatus for a four-wheel drive vehicle

In a pressure type differential limiting clutch (60), a drive plate and a driven plate provided between a clutch drum (61) for transmitting a driving force to a front drive shaft (16) and a clutch hub (62) for transmitting the driving force to a rear drive shaft (20) are pressed by a pressure force of a cone disk spring (68) provided in a pressure plate, and an initial torque by the cone disk spring acts as the differential limiting torque. At a high speed, a weight (72) in limiter device is moved in a radius direction by a centrifugal force through rotation of the rear drive shaft (20), enters between cam surfaces formed on the pressure plate and the clutch hub, and pushes and broadens. As a result, the pressure plate (65) moves back against energizing force of the cone disk spring, and the initial torque is cancelled.