Patent · US Expired

Wiper arm, especially for motor vehicle windshield wiper systems

US4947508A · kind A · utility

9Cited by

4References

3Claims

0Family size

Assignee

SWF Auto-Electric GmbH · DE

Inventors

Kurt Bauer · Bietigheim-Bissingen, DE
Hans Prohaska · Bietigheim-Bissingen, DE
Eckhardt Schmid · Bietigheim-Bissingen, DE

Key dates

Filing date	May 11, 1989
Grant date	Aug 14, 1990
Priority date	—
Expiry date	May 11, 2009

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60S1/3456
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

This invention describes a wiper arm, which in the receiving area (19, 14, 15) for the swivelling axis (18) between fastening member (10) and link (11) has a recess (40, 43), which permits a dipping of the spring holding yoke (30) into the swivelling axis receiving area (19, 14, 15) for achieving a stable tilted position (A) of the link (11). Thereby a low mode of construction of the wiper arm can be adhered to. In a preferred embodiment there is provided a hole-shaped recess (40) in a rolled bearing bush (19). which otherwise extends round and along the entire swivelling axis (18) thereby ensuring in addition a good guidance of the swivelling axis.

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