Retention system for a driver of a vehicle

The system has bearing bracket (4) on which a protective bracket (10) is supported, and is pivoted between cab driver in the holding position and release position about an horizontal pivot axis (8). The bearing bracket has pivotable shells (7,9) among which first shell is connected with the vehicle (1) and a second shell is connected with the protective bracket to adapt relative to the cabin (2) in the jerk halt position.