The invention relates to a wiper arm device (100) for cleaning a vehicle window (1), with a wiper arm head (10) that can be at least indirectly connected by means of a wiper arm rod (22) with a wiper blade (5) at a first end region with a drive shaft (12) and a second end region lying opposite the first end region, wherein the wiper arm rod (22) is pivotably mounted on the side facing the wiper arm head (10) in a first pivoting axis (20). It is provided according to the invention that a spacer device (40) is arranged on the wiper arm rod (22), and designed to hold the wiper arm rod (22) a constant distance (a) away from the vehicle window (1).