Patent · US Expired

Pendulum gear, especially for windshield wipers of motor vehicles

US5133221A · kind A · utility

4Cited by

9References

23Claims

0Family size

Assignee

SWF Auto-Electric GmbH · DE

Inventors

Rainer Bruhn · Bietigheim-Bissingen, DE
Robert Klinar · Bietigheim-Bissingen, DE

Key dates

Filing date	Jan 23, 1991
Grant date	Jul 28, 1992
Priority date	—
Expiry date	Jan 23, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19898
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Pendulum gears for windshield wipers of motor vehicles are known, which pendulum gears comprise a first gear member provided with teeth, which gear member is non-rotatably seated on a driven shaft, and a second gear member provided with teeth, which gear member meshes with the first gear member, and by which the first gear member can be driven in pendulum motion between two reversing positions. The noises occurring in the reversing positions of the first gear member are to be reduced. For this purpose the tooth play between the teeth of the two gear members is decreased towards the reversing position of the first gear member. Thus a beating noise caused by the teeth when changing the tooth flanks is avoided.

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