Patent · US Expired

Drive mechanism with lost motion play for a windshield wiper device of motor vehicles

US5179759A · kind A · utility

5Cited by

8References

6Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Anton Epple · Rottenburg am Neckar, DE
Hans Trube · Herrenberg, DE
Martin Pfeiffer · Winnenden, DE

Key dates

Filing date	Feb 8, 1990
Grant date	Jan 19, 1993
Priority date	—
Expiry date	Feb 8, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19614
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A drive mechanism for a motor vehicle windshield wiper device has a crank which is driven in a rotating manner and produces a pivoting movement of a windshield wiper via a drive rod. If the movement of the windshield wiper is obstructed by a snow wedge building up in the wiper socket, the drive mechanism provides for an obstruction evading movement of the drive rod in such a way that the crank can fully rotate unimpeded. In order to obtain a low loading of the drive rod and its joints in the event of obstruction of the windshield wiper and to obtain a uniform wiping zone in normal wiping operation, the novel drive mechanism for the drive rod is firmly coupled to the crank and a lost motion drive means is arranged on the wiper shaft.

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