Toothed rack or threaded rod

US7887069B2 · kind B2 · utility

Assignee

• THYSSENKRUPP PRESTA AKTIENGESELLSCHAFT · LI

Inventors

• Roman Bilmayer · Mauren, LI
• Ralf Eckstein · Mauren, LI
• Alexander Kiforiuk · Großenhain, DE
• Frank Birkwald · Esslingen am Neckar, DE
• Michael Stange · Echterdingen, DE

Key dates

• Filing date: Oct 19, 2009
• Grant date: Feb 15, 2011
• Expiry date: Oct 19, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19828
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A toothed rack or threaded rod, in particular for a steering mechanism for a motor vehicle, includes a first rod-shaped part which, as a function element of the toothed rack or threaded rod, includes at least one element for the conversion of a rotational movement into a translational movement, in particular a toothing and/or a threading for the engagement of a threaded nut or of a threaded drive, and a second rod-shaped part which is connected with the first rod-shaped part. The connection of the first with the second rod-shaped part takes place via a separate connection part which includes first and second connection pins, of which the first connection pin is held by press fit in the hollow volume opening out at the connection end of the first rod-shaped part and the second connection pin is held by press fit in the hollow volume opening out at the connection end of the second rod-shaped part. A section of the connection part located between the first and the second connection pin has at least over a region of its circumference a greater radial dimension than the first and the second rod-shaped part in the corresponding circumferential region.