Windshield wiper system

A windshield wiper system for a vehicle having a windshield of an outer curved surface and the windshield wiper system having an oscillating gear drive with a park position, the system comprising:

• two coupled wiper arms and one wiper blade, one of the two wiper arms being mounted to said oscillating gear drive, the wiper blade having a flexible design and being mounted by means of the two wiper arms distal to the oscillating gear drive for oscillation across the windshield about an oscillatory axis, the wiper blade defining a longitudinal extension along the curved surface of the windshield, the two wiper arms being aligned with the longitudinal extension and having each along the curved windshield outer surface a respective pivotal wiper arm axis, perpendicular relative to the oscillatory axis at the oscillating gear drive and a longitudinal axis;
• a wiper blade shaft, two bearing bushes, two fit bolts, two cranked fittings and a prolongation fitting are provided, the wiper blade being mounted rotatable about a wiper blade rotation axis by means of a wiper blade holder and the wiper blade shaft to the prolongation fitting, the wiper blade rotation axis being substantially tangential to the windshield outer surface, the prolongation fitting is mounted by the bearing bushes and fit bolts respectively rotatable about prolongation fitting rotation axes perpendicular to the cranked fittings on the wiper arms, the oscillating gear drive of the windshield wiper system has a central wiper system park position, such that the park position of the wiper blade is in the central position of the windshield,
• the wiper blade being mounted rotatable about the wiper blade rotation axis, perpendicular to an oscillatory axis and to a longitudinal axis in a central wiper system park position, the prolongation fitting rotation axes are inclined with regard to wiper arm axes, which are defined by the longitudinal extension of the wiper arms, in a plane formed by the oscillatory axis and the longitudinal axis by an inclining angle, the prolongation fitting rotation axes being inclined to a respective wiper arm axis of each of the two wiper arms by the inclining angle that is between 45° and 135°, so that the rotation of the wiper blade about the wiper blade rotation axis and the flexible design of the wiper blade allow the longitudinal extension of wiper blade to follow the windshield curvature.