Selector lever having actuating change of position

US8499661B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Ludger Rake · Diepholz, DE
• Andreas Giefer · Bohmte, DE
• Sascha Rosentreter · Espelkamp, DE

Key dates

• Filing date: Aug 11, 2009
• Grant date: Aug 6, 2013
• Expiry date: Jun 7, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2014
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An operating device for shift-by-wire transmission comprises a selector lever which has a detent mechanism. The detent mechanism comprises bevel and notched contours that can be displaced for automatically returning the selector lever back to the first lock position or shift gate. The notched contour is spring-biased toward the selector lever detent element and overlaps the bevel contour in its first position, and an actuating block is provided for locking the notched contour in its first position near the detent element. The spring-loading of the notched contour is weaker than the spring-loading of the detent element, and the shape of the first detent position of the notched contour matches that of the first detent position of the bevel contour when the notched contour is located in the first position. The operating device enables actuator-controlled automatic return, and optional locking of the selector lever with little design effort, while simultaneously having low space requirements and minimal generation of any disturbing noise.