Stamped connector fittings for windscreen wiper arms
AssigneeEquipements Automobiles Marchal
InventorsRoger A. Ragot, Claude J. Wolf
Life of this patent
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Abstract
A connector fitting for mounting a windscreen wiper arm on the output spindle of a windscreen wiper arm drive mechanism is formed from sheet metal by stamping the outline of a blank, deforming the blank to form a fastening means for the blade-applying spring, chasing the metal to form a bush to receive the spindle and bearing collars for a pivot pin articulating the fitting to the blade, and folding the metal to give the fitting a channel shape.
Claims15
A stamped metal connector fitting for a windscreen wiper arm for mounting the arm on an output spindle of a windscreen wiper drive mechanism, said connector fitting being stamped from a metal sheet and including a fixing zone for securing the connector to the output spindle, and an articulation zone for pivotally connecting a wiper arm casing to the fitting itself, said connector fitting comprising, a U-shaped body having side walls and a top wall, and said side walls in the fixing zone extending only partly around the spindle and being open in a direction toward the articulation zone, said top wall in the fixing zone have formed therein an integral collar of a height greater than the thickness of said top wall and having an opening therein of truncated section for mounting on a serrated portion of the output spindle, said side walls, in said articulation zone having a thickness essentially the same as the side walls in the fixing zone and increasing in height from the fixing zone to the articulation zone, said side walls having aligned openings therein, in the articulation zone, for receiving a pivot pin for pivotally connecting the wiper arm casing to the connector, and means between the collar and the openings for receiving the pivot pin for pivoting the wiper arm casing, for connecting an end of a spring to the connector for forcing the wiper arm toward a windshield.
Dependencies are inferred from the claim text.