Wiper apparatus with motor adjustable limit positions

Details Wiper apparatus with motor adjustable limit positions Wiper apparatus with motor adjustable limit positions

1991-03-27

1994-02-22

Gerrity, Stephen F.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

152503, 74 43, 74600, 74522, 74828, B60S 104, A47L 100

Patent

active

052875857

ABSTRACT:
A windshield wiper apparatus for a vehicle includes a rotatably supported main shaft to which a wiper arm is secured, a main lever secured to the main shaft, a cam member arranged eccentrically about the main shaft, a plate turnably supported on the main lever, a subordinate lever having one end arranged about the cam member and another end connected to the plate, an arm turnably supported on the plate and having a joint to which a wiper drive mechanism is connected, and a turnover spring arranged between the plate and the arm for holding the arm at a predetermined position. If the wiper arm is moved by wind force during operation at high vehicle velocity, this motion is compensated for by adjusting the oscillation sweep of the arm in such a manner that the wiper arm will reverse direction at its normal upper reversal point. The wiper arm is thus prevented from striking the vehicle pillar, without reducing visibility through the windshield.

REFERENCES:
patent: 4787114 (1988-11-01), Okudaira
patent: 4934014 (1990-06-01), Yamamoto
patent: 4947507 (1990-08-01), Naiki
patent: 5031265 (1991-07-01), Nakatsukasa

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