Drive device

US6713917B2 · kind B2 · utility

Assignee

• Valeo Auto-Electric Wischer und Motoren GmbH · DE

Inventors

• Josef Klar · Löchgau, DE
• Johannes Helmich · Ilsfeld, DE
• Friedrich-Wilhelm Kaiser · Rutesheim, DE
• Ronald Frey · Bönnigheim, DE
• Werner Baeskow · Hessigheim, DE

Key dates

• Filing date: Jun 17, 2002
• Grant date: Mar 30, 2004
• Expiry date: Jun 17, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2057/0213
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A drive device includes an electric drive motor, a housing, at least one shaft which is driven by the drive motor, and a compensating member for compensating the axial clearance of the shaft. A spring ring disk, which can be expanded radially counter to an elastic force and has two stopping surfaces radially extending towards each other on the axis of the shaft in the form of a wedge, is arranged on the shaft as the compensating member. The shaft has a ring-shaped projection which matches one of stopping surfaces and the housing has an annular collar which matches the other stopping surface. The spring ring disc is pre-tensed and arranged in between the projection and the annular collar.