Device for dosing the vehicle deceleration

The vehicle brake master cylinder (1), which is connected hydraulically to the braking circuit and attached to part of the vehicle, contains a piston (2) coupled to an actuator in the form of a manual (7) or pedal lever, which is itself pivoted to part of the vehicle. The cylinder is coupled to a housing (4) and the piston to the lever (7) by pivots (6, 8) with bearings (9) so that the piston and cylinder stay in line as the lever is operated, and there is no radial effort or friction affecting the braking force applied.