Wiper arm device for vehicle, has wiper arm which is provided for coupling wiper blade at drive unit and has water guide channel, where wiper arm is formed in water guide area of water guide channel in tubular manner

摘要

The wiper arm device has a wiper arm (10) which is provided for coupling a wiper blade (12) at a drive unit and has a water guide channel (14), where the wiper arm is formed in a water guide area (16) of the water guide channel in a tubular manner. The wiper arm has a substantially constant pipe wall thickness. The wiper arm is formed with the water guide channel in a single-piece manner. The water guide channel has a circular outer contour.