Patent · US Expired

Wiper arm, especially for windshield wiper systems on motor vehicles

US4991251A · kind A · utility

10Cited by

4References

15Claims

0Family size

Assignee

SWF Auto-Electric GmbH · DE

Inventors

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

Key dates

Filing date	Dec 20, 1988
Grant date	Feb 12, 1991
Priority date	—
Expiry date	Dec 20, 2008

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60S1/3411
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

This invention relates to a wiper arm with the possibility of adjusting its contact pressure, wherein the link may be brought into a stable tilted position. Upon tilting the point of application of the wiper arm pressure spring on this side of the fastening member is displaced in the direction of the articulated axle between wiper arm fastening member and wiper arm link in a manner that the perpendicular spacing between the line of application of the pressure spring and the articulated axle is diminished. This is why a small tilting angle can be realized.

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