Patent ID: 6907965

Claim:
A park brake system for a vehicle comprising: an actuator with an electric drive motor having an output and an electronic control unit, a reduction gear having an input connected to the output of said electric motor and a pull force output member for connection to mechanical brakes of the vehicle, and a command unit connected to said electronic control unit; wherein said reduction gear comprises a first reduction train and a second reduction train, said first reduction train including a worm gear and said second reduction train including a threaded spindle and a screw nut engaged with said spindle, said worm gear connecting said spindle to the output of said electric motor, and said pull force output member being a pivotally mounted two-armed lever having a first arm directly connected to said screw nut and a second arm directly connected to a brake cable, said first and second arms being located at opposed ends of said lever and are rigidly connected to each other during both an activated condition of the brake cable and during a released condition of the brake cable.