Park braking system for motor vehicle, has drive unit with kneader arm driving bar in moving direction, where unit has retaining unit to prevent return of bar when arm returns, and unit releasing bar using drive unit

摘要

The system has a clamping device (S) with a step by step drive unit (D) that drives a bar (1) in the clamping direction. The unit has a kneader arm (3) for round trip movement under the action of a motor. The arm drives the bar in the moving direction due to wedging effect. The unit has a retaining unit (R) to prevent return of the bar when the arm returns. A release unit releases the bar using the drive unit.