Patent · US Active

Electronic drive of a parking brake

US7559410B2 · kind B2 · utility

4Cited by

7References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Andreas Funk · Schwäbisch Gmünd, DE
Michael Helmer · Frankfurt am Main, DE
Hans-Peter Hoffmann · Dachau, DE
Jens Luebben · Rastede, DE
Helmut Pfalzgraf · Eibelstadt, DE
Gerhard Pfanzer · Bad Camberg, DE
Stefan Pfeiffer · Heidelberg, DE

Key dates

Filing date	Mar 27, 2006
Grant date	Jul 14, 2009
Priority date	—
Expiry date	Mar 9, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2048
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An electric drive for a parking brake is disclosed, the brake having a rotationally driven screw nut which is in engagement with two spindles which are aligned with one another, have threads running in opposite directions, and which are fixed in the rotational direction, can be moved in a translatory fashion and are each provided with a cable holder for connecting to brake elements. Here, one of the two spindles is a hollow spindle whose internal diameter is greater than the external diameter of the other spindle so that when the screw nut rotates, the spindle on one side can be retracted in a telescopic fashion into the hollow spindle on the other side.

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