Adjustable blade load mechanism for cantilever beam wiper arm assembly

A windshield wiper system comprising:

• a drive arm having a drive shaft connector, wherein the drive arm is configured to connect to a drive shaft at the drive shaft connector;
• a curved cantilever beam connected to the drive arm with a first drive arm fastener and a moveable drive arm fastener, wherein the first drive arm fastener is a rivet positioned on the drive arm between the drive shaft connector and the moveable drive arm fastener and wherein the moveable drive arm fastener is positioned at one of a plurality of moveable drive arm fastening positions located on the drive arm such that the moveable drive arm fastener functions as a blade load adjustment feature;
• and
• a wiper blade assembly connected to the curved cantilever beam with a wiper blade fastener positioned at a wiper blade assembly fastening position on an outboard tip of the curved cantilever beam;
• wherein the curved cantilever beam has an effective length extending from the location of the moveable drive arm fastener on the drive arm to the wiper blade assembly fastener such that a blade load exerted by the curved cantilever beam on the wiper blade assembly is a function of the effective length of the curved cantilever beam and the location of the moveable drive arm fastener on the drive arm is selected to provide a selected blade load.