Apparatus for the limitation of the wiping angle of a windscreen wiper unit
AssigneeAlfred Teves GmbH
InventorsHarro Buhl, Hans-Peter Rienhardt
Life of this patent
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Abstract
In a windshield wiper drive for a vehicle, the wiper spindle performs a rotational movement to-and-fro. In order that the inversion of motion does not take place all of a sudden but in a cushioned manner, a part-pinion with a pinion gap is realized when one tooth of the part-pinion is engaged by a cushioning stop member of a spring element. Reciprocally, another tooth strikes against an associated stop member shortly after the inversion of motion. The spring element is elastically deflected in the final phase of the rotational movement and thereby cushions the part-pinion. The spring element is preferably fastened to the gearing cover.
Claims11
An apparatus for the limitation of the wiping angle of a windshield wiper unit for a vehicle, the wiper unit having a wiper spindle drivable to move to-and-fro, the apparatus comprising:
- a part-pinion lying substantially in a plane and having at least two teeth each projecting radially outwardly from said part-pinion;
- housing means for anchorage;
- a spring element having at least one springy arm, the spring element being anchored to said housing means, the at least one spring arm being elastically swingable in a plane generally parallel to the pinion plane, said springy arm having a free end projecting at an angle from said pinion plane, the springy arm being reciprocatingly engaged by said teeth to limit travel of said teeth on said part-pinion.
Dependencies are inferred from the claim text.