Patent · US Expired

Adjusting device for a vehicle parking brake

US4889007A · kind A · utility

7Cited by

8References

8Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Ernst Senft · Asperg, DE
Herbert Klemmer · Jeffery Road, DE
Ullrich Uhl · Aalen, DE
Emil Naumann · Reichenbach, DE
Nikolaus Schefcsik · Schwaikheim, DE

Key dates

Filing date	Jun 21, 1989
Grant date	Dec 26, 1989
Priority date	—
Expiry date	Jun 21, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/214
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An adjusting device for automatically compensating for cable strand elongation in a vehicle parking brake utilizes a rotatable disc cam having a circumferential edge which spirals radially out to effect a displacement of a cable yoke in a cable tensioning direction as slack develops in a cable strand of the parking brake. The disc cam is tensioned by a torsion spring, the entire device having a small number of parts and high operational reliability even when dirty.

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