Windshield wiper system with extendable wiper arm and adjustable

Details Windshield wiper system with extendable wiper arm and adjustable Windshield wiper system with extendable wiper arm and adjustable

1993-12-08

1996-01-09

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525021, 1525023, 15250352, 1525016, B60S 132, B60S 120, B60S 144, B60S 136

Patent

active

054817781

ABSTRACT:
The wiper arm of a windshield wiper system for passenger vehicles is oscillatingly driven across the windshield and the contact pressure of the wiper blade is varied during the oscillatory motion. A driven basic body is pivoted on a pivot bearing mounted on the passenger vehicle. The wiper arm includes a wiper arm member attached to the basic body and it is resiliently biased towards the windshield. A control cam is formed at the pivot bearing and a cam follower, which is operatively associated with the wiper arm, follows the cam surface during the oscillation of the wiper arm across the windshield. The contact pressure of the wiper arm and the wiper blade onto the windshield are thus varied. The wiper arm member is formed as a leaf spring which is rigidly connected to the basic body and which is operatively associated with the cam follower.

REFERENCES:
patent: 2715239 (1955-08-01), Mintz
patent: 3480985 (1965-12-01), Forster
patent: 4318201 (1982-03-01), Rogers et al.

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