Gearshifting arrangement for actuating motor vehicle multi-speed gearboxes

US5481935A · kind A · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Gerhard Bailly · Friedrichshafen, DE
• Unal Gazyakan · Friedrichshafen, DE

Key dates

• Filing date: Apr 20, 1994
• Grant date: Jan 9, 1996
• Expiry date: Apr 20, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20018
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A system for shifting gears in a multi-speed motor vehicle transmission in which a single gearshifting element, in the form of a connecting rod (1), is moveable in a direction parallel to the rotational axis (33) of the transmission (T) gears (31). A plurality of individually actuatable coupling mechanisms (4, 4', 4', 18), upon actuation, selectively couple corresponding gearshifting levers (12, 12') with the connecting rod. The gearshifting levers (12, 12') are, in turn, operably connected to gearshifting sleeves (30, 30') of the transmission (T). When a coupling mechanism is individually activated, the corresponding gearshifting lever is pivoted by the connecting rod (1) for selectively engaging or disengaging a corresponding gear of the transmission, via the corresponding gearshifting sleeve (30, 30').