Axially adjustable steering device for motor vehicles

US4941679A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Karl-Heinz Baumann · Viernheim, DE
• Herbert Holtze · Weil der Stadt, DE
• Martin Wunsche · Calw, DE
• Wolfgang Schwede · Sindelfingen, DE

Key dates

• Filing date: Jun 27, 1989
• Grant date: Jul 17, 1990
• Expiry date: Jun 27, 2009

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D1/181
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An axially adjustable steering device for motor vehicles comprises two jacket-tube parts, of which the inner jacket-tube part is displaceable telescopically in the outer jacket-tube part by means of a controllable drive, a worm gear received in a reception part pivotably mounted fixedly relative to the vehicle acting on an axial tooth-profile part on the inner jacket-tube part in a longitudinally displacing manner. The reception part is retained via a locking mechanism in an engagement position of the worm gear and tooth-profile part, and this locking mechanism is releasable in a controlled manner during a front collision, after which the worm gear is pivoted out of engagement with the tooth-profile part and the inner jacket-tube part is moveable into a position shifted furthest in the forward direction.