Servo brake for assisting braking of motor vehicle, has reaction body transmitting off-loaded part of reaction force from master cylinder to servo brake beyond threshold of intensity of control force, by off-loading part of push rod

摘要

The servo brake has a push rod (206) which transmits an assisted braking force (264) to a master cylinder, where the master cylinder retroacts by a reaction force (250) on the servo brake. A reaction body (220) transmits an off-loaded part (260) of the reaction force from the cylinder to the servo brake beyond a threshold of intensity of a control force (254), by off-loading a part of the push rod. The push rod transmits the reaction force below the threshold of intensity of the force (254). Independent claims are also included for the following: (1) a master cylinder comprising a piston (2) a braking device of a vehicle comprising a master cylinder and a servo brake.