Shift device for manual field transmission

US7089821B2 · kind B2 · utility

Assignee

• GETRAG Getriebe- und Zahnradfabrik Hermann Hagen · DE

Inventors

• Andreas Schaefer · Leverkusen, DE
• Martin Poeschl · Munich, DE
• Martin Burgbacher · St. Georgen, DE

Key dates

• Filing date: Apr 30, 2004
• Grant date: Aug 15, 2006
• Expiry date: Apr 30, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2011
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A shift device for an inline transmission, comprising a shift shaft which is rotated during selection movements and is offset axially during shift movements, a plurality of shift members each of which being mounted movable or pivotably in the axial direction, for the actuation of at least one assigned shift clutch, a plurality of shift fingers which are secured to the shift shaft and extend in each case towards one side, each shift finger being assigned to one of the shift members and being arranged in such a way that, in a defined rotary selection position of the shift shaft, the shift finger is coupled axially to its assigned shift member, in order to drive the shift member during an axial movement of the shift shaft, and a blocking device for preventing two or more gears of the transmission from being shifted simultaneously, the blocking device having a plurality of individual blocking elements mounted fixedly with respect to the casing.Further, the blocking elements each act between an assigned shift member and a blocking member connected fixedly to the shift shaft.