Breakaway mounting bracket assembly for a wiper system

A pivot shaft assembly for a wiper system including a breakaway mounting bracket assembly, said pivot shaft assembly comprising:

• a pivot shaft and a sleeve through which said pivot shaft is oriented to provide rotational movement of said pivot shaft within said sleeve and direct a wiper arm in an oscillating manner across a windshield, said pivot shaft including a base portion mounted to a portion of a wiper system linkage assembly, a body that extends from the base portion through the sleeve, and a pivot head adapted to engage a portion of the wiper arm;
• a mounting bracket extending from said sleeve that is adapted to be operatively attached to a portion of a vehicle;
• a grommet removably attached to said mounting bracket and adapted to dampen NVH at the point of attachment between said mounting bracket and the portion of the vehicle;
• a one-piece ferrule operatively disposed within said grommet having a column including an internal passage and a platform operatively connected to said column by a plurality of bridges disposed therebetween;
• and
• an attachment member adapted to connect said mounting bracket to a said portion of the vehicle, said attachment member having a bulbous head adapted to contact said portion of the vehicle and a body depending therefrom that is operatively engaged to said internal passage,
• wherein said platform is adapted to fold upon receipt of a predetermined load acting through a pivot shaft assembly such that said mounting bracket is adapted to break away from attachment with said grommet and displace the pivot shaft assembly and a portion of a wiper arm below a vehicle's impact line for a pedestrian impact.