Control for windshield wipers with overlapping pattern and park

Details Control for windshield wipers with overlapping pattern and park Control for windshield wipers with overlapping pattern and park

1986-09-05

1987-06-02

Shoop, Jr., William M.

Electricity: motive power systems

Periodic, repetitious or successive operations control of...

318 41, 318102, 318444, 318468, 318DIG2, 1525012, 1525017, H02P 104, B60S 108

Patent

active

046706950

ABSTRACT:
A control for an electrically powered, motor vehicle windshield wiper system with independent drive motors for the wiper blades which produces an opposing wiper pattern with overlapping park and which is simple and inexpensive to manufacture by providing a unique switching system which coordinates the blades to prevent interference therebetween and converts simply and effectively, when the system is turned off, to a blade parking control which allows continuation of normal blade movement into a predetermined park position. The control provides switch control for the motor of each wiper blade in response to certain predetermined positions of the other blade, including, in particular, a position adjacent but outside the wipe pattern of the other blade wherein the controlled blade may be stopped if necessary to avoid interference. The switching arrangement further utilizes contact segments which are switched into different switching arrangements by control switch apparatus in order to control normal running and parking in the most efficient manner.

REFERENCES:
patent: 2985024 (1961-05-01), Contant et al.
patent: 3721878 (1973-03-01), Gumbert
patent: 4405887 (1983-09-01), Tamura et al.
patent: 4431954 (1984-02-01), Carpenter et al.

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