Control device for wiper apparatus with two-direction rotatable

Details Control device for wiper apparatus with two-direction rotatable Control device for wiper apparatus with two-direction rotatable

1987-02-06

1988-05-03

Ro, Bentsu

Electricity: motive power systems

Motor-reversing

Periodic- or intermittent-reversing

318444, 318DIG2, 1525017, B60S 108

Patent

active

047422807

ABSTRACT:
A control device for a car wiper apparatus is disclosed, in which the wiper apparatus is driven in forward or reverse directions by the function of an electronic circuit. The control electronic circuit is so configured as to minimize the number of connection brushes for controlling the forward and reverse operations of the wiper motor which reciprocates the wiper blade. The reduced number of the connection brushes, which are arranged in the wiper motor, realizes a compact shape of the wiper motor as a whole. The electronic circuit functions to drive the wiper motor in forward and reverse directions within a predetermined angle thereby to rotate the crank arm connected with the wiper motor and the wiper blade with a small predetermined angle for reciprocal wiping operating, thus making it possible to mount the wiper apparatus in the small internal space of the car.

REFERENCES:
patent: 4271381 (1981-06-01), Munz et al.
patent: 4309646 (1982-01-01), Liedtke et al.
patent: 4336482 (1982-06-01), Goertler et al.
patent: 4585980 (1986-04-01), Gille et al.
patent: 4599546 (1986-07-01), Uemura
patent: 4614903 (1986-09-01), Betsch et al.
patent: 4673853 (1987-06-01), Tsunoda et al.

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