Non-reversing windshield wiper motor park switch

US6737593B1 · kind B1 · utility

Assignee

• Valeo Electrical Systems, Inc. · US

Inventors

• Eugene B. Porter · Clarkston, US
• Frank R. Lombardo · Rochester, US
• Gregory Hickey · Centerville, US
• Christopher Jones · Dayton, US
• Harald Klode · Centerville, US
• James A. Jackson, Jr. · Kettering, US

Key dates

• Filing date: Jul 28, 2000
• Grant date: May 18, 2004
• Expiry date: Feb 12, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S200/02
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A windshield wiper drive apparatus includes a non-electrical contact position detector of the wiper inwipe position. A magnet is rotated by the wiper drive gear and moves past a magnetically responsive sensor mounted within the drive housing to detect the inwipe position of the wipers. In one aspect, a rotatable cam is mounted in the housing and carries the magnet. Interengaging members on the drive gear and the cam cause rotation of the cam in only the normal direction of rotation of the drive gear. Any back movement of the drive gear through interfering contact of the wiper blades with an obstruction separates the drive gear interengaging member from the cam preventing movement of the cam.