Patent · US Expired

Thrust piece unit for rack-and-pinion steering mechanisms

US7197956B2 · kind B2 · utility

4Cited by

2References

1Claims

0Family size

Assignee

ZF Lenksysteme GmbH · DE

Inventors

Juergen Bieber · Ettlingen, DE
Rainer Schaenzel · Oberkochen, DE
Michael R. Schmidt · Carmel, US

Key dates

Filing date	Aug 9, 2004
Grant date	Apr 3, 2007
Priority date	—
Expiry date	Dec 26, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/1967
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A thrust piece unit for rack-and-pinion steering mechanisms, which is integrated into a housing bore of the steering mechanism housing of motor vehicles, in order to keep the pinion in constant intermeshing with the rack, the thrust piece unit comprising a cylinder part, a piston part and two chambers which are matched with one another and are filled with hydraulic medium and which are connected to one another via a replenishing valve and via a throttle point, and overload protection being additionally integrated in the thrust piece unit.

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