Patent · US Expired

Wiper system with extendible wiper arm

US5181293A · kind A · utility

4Cited by

1References

7Claims

0Family size

Inventors

Peter Baumgarten · Coburg, DE
Bruno Egner-Walter · Heilbronn, DE
Eckhardt Schmid · Bietigheim-Bissingen, DE
Wolfgang Scholl · Gemmrigheim, DE

Key dates

Filing date	Mar 26, 1990
Grant date	Jan 26, 1993
Priority date	—
Expiry date	Mar 26, 2010

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60S1/365
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A wiper system, which is used especially for motor vehicles and in which the pendulum-motion of at least one wiper blade is overlapped by a motion of the wiper blade in its longitudinal direction. The wiper blade can be moved by means of a gearing that can be driven via a stroking shaft coaxially running to the wiper shaft. The stroking shaft is connected to a coupler via a stroking swivelling lever, which coupler is linked to an intermediate lever that can swivellably be driven around a fixed axis by the drive motor. In order to be able to wipe a big part of the windshield of a motor vehicle, the coupler passes a dead center when the intermediate lever is swivelling from the one reversing position to the other, in which dead center the coupler reverses the direction of its motion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.