Patent ID: 7748076

Claim:
Wiper device comprising: a wiper arm ( 10 a - 10 j ) with at least one elastic section, which features a wiper rod ( 12 a - 12 j ) and a fastening part ( 14 a - 14 j ) connected especially in a non-articulated manner with said wiper rod ( 12 a - 12 j ); and at least one spoiler element ( 16 a - 16 j ) to generate a flow-induced bearing force; wherein said at least one spoiler element ( 16 a - 16 j ) substantially abuts over its entire length on said wiper rod ( 12 a - 12 j ) in at least a stressed state of said wiper rod ( 12 a - 12 j ) when said spoiler element ( 16 a - 16 j ) is mounted on said wiper rod ( 12 a - 12 j ), wherein said fastening part ( 14 a - 14 j ) is provided to accommodate a drive shaft, and wherein said fastening part ( 14 a - 14 j ) is connected with said wiper rod ( 12 a - 12 j ) via said at least one elastic section of said wiper arm ( 10 a - 10 j ); wherein the spoiler element ( 16 a - 16 d , 16 i ) features a changing cross-sectional shape in the longitudinal direction; wherein said spoiler element ( 16 a ) is designed to be a single piece with said wiper rod ( 12 a ), and wherein on one end of said wiper rod ( 12 a ) facing away from said fastening part ( 14 a ) said wiper rod ( 12 a ) has a U-shaped cross-section which changes into a S-shaped cross-section along said longitudinal direction.