Gear shift device for an automatic transmission

US6684730B2 · kind B2 · utility

Assignee

• ZF Lemförder Metallwaren AG · DE

Inventors

• Andreas Giefer · Bohmte, DE
• Jorg Meyer · Aachen, DE

Key dates

• Filing date: Oct 5, 2001
• Grant date: Feb 3, 2004
• Expiry date: Feb 8, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20672
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A shifting device for an automatic transmission is provided with a shifting mechanism, which is mounted in a housing pivotably around a axis within at least one shift gate. The shift mechanism detects the shift signals electrically, electromagnetically or optically and transmits them. The shift mechanism has a locking device, which is guided with the gearshift lever along a contour of a gate. The contour is associated with the shift positions (P, R, N, D, . . . ). A device is controlled as a function of the speed and can be pivoted between at least two positions (active/inactive) around an axis and can be pivoted against the locking device in at least one shift position, so that the gearshift lever remains in the preselected shift position or is automatically returned into that shift position.