Patent ID: 6976285

Claim:
A four-hinged wiper arm for a windshield wiper system, comprising: a single piece connecting rod pivotally connected to a driving arm at a first bearing point on the connecting rod and to a control arm at a second bearing point on the connecting rod, a hinged part coupled to the connecting rod at an axis, a wiper blade placeable on one of the hinged part and a wiper rod connected to the hinged part can be pressed against the windshield to be wiped by a spring element that is mounted on the four-hinged wiper arm, wherein one of the connecting rod, the driving arm, and the control arm is provided with a co-axial rolling-contact bearing relative to a passage in at least one of the first and second bearing points of the four-hinged wiper arm and inner and outer races of the bearing are axially and radially fixed to be non-rotatable with respect to the connecting rod and at least one of the control arm and driving arm allowing transmission of large radial and axial forces without play, wherein the inner race of the bearing is fixed by wobble riveting.