Windshield wiper system with blade assembly drive for maintainin

Details Windshield wiper system with blade assembly drive for maintainin Windshield wiper system with blade assembly drive for maintainin

1994-10-13

1996-04-02

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525021, 1525033, 1525037, 1525029, 1525032, B60S 140, B60S 144

Patent

active

055028667

ABSTRACT:
A windshield wiper system for vehicles with a windshield having a curved surface with a curvature across the width of the vehicle is disclosed. The system comprises at least one driven wiper arm. A wiper blade assembly is mounted on a free end of the wiper arm. The wiper blade assembly defines a longitudinal axis and it is mounted pivotally about an axis parallel to the longitudinal axis. An oscillating drive oscillating the wiper arm across the windshield. A pivot drive is connected to said wiper blade assembly and it is adapted for driving the wiper blade assembly in accordance with an oscillatory movement of said wiper arm. The pivot drive includes a cam follower for pivoting the wiper blade assembly relative to said wiper arm and for maintaining a substantially constant attack angle of the wiper blade assembly relative to the windshield surface during the oscillatory movement of the wiper arm. The cam surface on which the cam follower rides may be defined by the surface of the windshield or by a separately provided cam member.

REFERENCES:
patent: 2412319 (1946-12-01), Carey
patent: 2824331 (1958-02-01), Wallis
patent: 2859466 (1958-11-01), Sanden
patent: 2979425 (1961-04-01), Krohm
patent: 3006788 (1961-10-01), Krohm
patent: 3035296 (1962-05-01), Deibel
patent: 4546518 (1985-10-01), Harbison et al.
patent: 4858268 (1989-08-01), Shirato

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