Fluid pressure braking systems for vehicles

摘要

Three forms of control mechanism are disclosed for controlling the biassing load exerted on the valve members of each pressure regulator of a liquid pressure braking system which includes one such pressure regulator for controlling the brake pressure on a rear wheel on one side of the vehicle and another such pressure regulator for controlling the brake pressure on the other side of the vehicle. Each of the three control mechanisms conveniently is shown connected between trailing rear suspension arms on opposite sides of the vehicle, so that it responds to vertical movements of the rear wheels relative to the vehicle body on both sides of the vehicle, and includes a lever arrangement which responds to such vertical movements of the rear wheels relative to the vehicle body on both sides of the vehicle in such a way that the proportional changes in the biassing loads applied to the valve members of the pressure regulators that follow movements of the rear wheels relative to the vehicle body are greater when those movements are unequal than when the rear wheels move relative to the vehicle body substantially equally in both magnitude and direction.