Robert Boschgmbh

Swen Koehn

Joachim Zimmer

Jan Dietrich

Juergen Rapp

Claus Fleischer

Tino Boos

Ulrich Metz

Achim Kraus

Alexander Goeller

Robert-Jan Van De Rovaart

Christian Reiser

Heiko Volz

Andreas Biank

Marc-Oliver Karle

Salvatore Formisano

Oliver Enzmann

Hans Wickermann

Eugen Lind

Branislav Milenkovic

Martin Joerger

A wiper arm device for a wiper arm (), having at least one fastening part () which is provided for connecting at least one articulation part () of the wiper arm () to a drive shaft () of a wiper drive (), wherein the fastening part () has at least one fastening boss () for fastening the fastening part () to the drive shaft () and at least one articulation boss () for fastening the articulation part () to the fastening part ().

Wiper arm device, wiper arm, and screen wiper system

The invention relates to a fastening arrangement () comprising a wiper bearing () of a windscreen wiper arrangement of a vehicle. Said wiper bearing () comprises a bearing element () having a planar first side (); a bearing section which protrudes from the first side () of the bearing element () for guiding a wiper shaft (); one or more gripping elements () which are arranged on the bearing section () and respectively comprising a gripping surface which is arranged parallel to the surface of the first side () of the bearing element ().

Fastening arrangement for a wiper bearing of a windscreen wiper system of a vehicle

The invention relates to a method for operating a direct wiper drive having a motor, in particular for a windshield wiper. The method comprises reading out at least one characteristic curve from a memory and operating the wiper direct drive at an angle- and direction-dependent torque, corresponding at a maximum to a value of the angle- and direction-dependent characteristic curve, wherein the characteristic curve comprises at least the following values: a first, maximum value for upward wiping at a first wiping angle between a lower turning location and an upper turning location; a second value for upward wiping at a second wiping angle between the first wiping angle and the upper turning location, wherein the second value for upward wiping at the second wiping angle is less than the first, maximum value for upward wiping at the first wiping angle; a first, maximum value for downward wiping at a wiping angle between the upper turning location and the lower turning location, wherein the first, maximum value for downward wiping is greater than the first, maximum value for upward wiping; and a second value for downward wiping corresponding to a wiper position at the second wiping angle, wherein the second value for downward wiping is greater than the second value for upward wiping.

Method for reducing motor torque for wiper drives

A windshield wiper device (), particularly for a motor vehicle, is proposed. This windshield wiper device comprises a wiper bearing () supporting a wiper shaft (), which has an undercut () in which a securing device () for axially fixing the wiper shaft () in the wiper bearing () is arranged. The securing device () can be displaced by the effects of a defined axial force component (F) on the wiper shaft (), whereby the wiper shaft () can be displaced in relationship to the wiper bearing (). According to the invention, the securing device () comprises a bushing section () with an indentation (), which engages in the undercut () of the wiper shaft ().

Windscreen wiping device, particularly for a motor vehicle

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Karlsruhe, Germany

Swen Koehn