Steering device for motor vehicles, adjustable along its longitudinal axis

US4598604A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Joachim H. Sorsche · Stuttgart, DE
• Karl Peitsmeier · Bad Liebenzell, DE

Key dates

• Filing date: May 21, 1984
• Grant date: Jul 8, 1986
• Expiry date: May 21, 2004

Classification

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

Abstract

A steering device for motor vehicles, which is adjustable along its longitudinal axis and whose steering column can be telescopically extended and retracted by means of a drive device, the steering column jacket being designed in several parts, one steering column jacket part being fixed to the body and one steering column jacket part being movable relative to the first, and in which adjustment can be introduced into the steering column jacket movable part by means of a coupling element with which a worm gear driven by a drive motor engages. The coupling element consists of a toothed rack located on the periphery of the steering column jacket movable part, a worm gear located with its axis parallel to the rack engaging with the rack and passing through a recess in the steering column jacket fixed part. The engagement angle of the worm gear is so dimensioned that self-locking occurs.