Driving crank for windshield wiper drive of motor vehicle, has crank plate including deformation area, which is plastically deformable for changing length of crank using deformation units to adjust linkage angle

摘要

The crank has a bearing shaft (4) and a crank plate (5) that is connected with a pivoting rod (7) by a ball pivot. The crank plate includes a deformation area (8), which is plastically deformable for changing the length of the crank using deformation units, where the length is changed for adjusting a linkage angle, which corresponds to an angle difference of two end positions taken by the crank. The deformation area is provided with recesses and/or cavities for reducing the thickness to be deformed. An independent claim is also included for a method for adjusting a linkage angle of a wiper bearing of a windshield wiper drive for motor vehicles.