Electricity: circuit makers and breakers – Gear driven
Patent
1989-03-09
1990-04-17
Luebke, Renee S.
Electricity: circuit makers and breakers
Gear driven
200252, H01H 340
Patent
active
049182722
ABSTRACT:
In the wiper motor driving device including a motor, a worm driven by the motor, a worm driven by the motor, a worm wheel in mesh with the worm to drive at least one wiper blade, a grounding conductive plate attached to the worm wheel, an autostop conductive plate also attached to the worm wheel, and a pair of conductive spring contacts urged into slidable electrical contact with the grounding and autostop conductive plates to drive and stop a wipe blade along the circumference of the worm wheel, in particular the grounding plate is formed with an arcuate cantilevered end at a height defining space (or with a recess formed in the worm wheel with a depth defining the same space). Therefore, when the worm wheel is reversely rotated due to a reaction force of the wiper blade (e.g. by snow accumulated on the windshield), it is possible to prevent further electrical contact between the grounding plate and the separated contact, that is, to prevent the wiper blade from hunting or chattering operation even in snow weather.
REFERENCES:
patent: 435132 (1890-08-01), Battershall
patent: 2035505 (1936-03-01), Petersen
patent: 3069670 (1962-12-01), Rondeau
Luebke Renee S.
Nissan Motor Co,. Ltd.
LandOfFree
Wiper motor driving device for automotive vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wiper motor driving device for automotive vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wiper motor driving device for automotive vehicles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1054383