Final control element for a vehicle steering system

US6837824B2 · kind B2 · utility

Assignees

• Robert Bosch GmbH · DE
• IMS Morat Soehne GmbH · DE

Inventors

• Gerd Reimann · Abstatt, DE
• Michael Bock · Munich, DE
• Willi Nagel · Biberach an der Riß, DE
• Rolf Knecht · Ditzingen, DE
• Heinz Gert Hagedorn · Rottweil, DE
• Ruediger Tinter · Leonberg, DE
• Stephan Oberle · Unterkirnach, DE
• Ralph Eble · Unterkirnach, DE

Key dates

• Filing date: Jan 4, 2001
• Grant date: Jan 4, 2005
• Expiry date: Jan 4, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19898
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A final control element for superimposed steering engagement of a vehicle steering system with a superposition gear having two input shafts and one output shaft, in order to attain a radial freedom from play, the superposition gear is provided with a two-stage, modified planetary gear, having a planet carrier, at least one stepped planet comprising two axially aligned planet wheels connected to one another fixed against relative rotation, and two sun wheels or ray wheels; the first input shaft is connected to one sun or ray wheel, and the output shaft is connected to the other sun or ray wheel, fixed against relative rotation, while the planet carrier is drivable via the second input shaft, and the at least one stepped planet and the sun wheels are biasing toward provided for suppressing a tooth flank play that occurs between.