Multi-stage speed-change gear

US5239887A · kind A · utility

Assignee

• Zahnradfabrik Friedrichshafen AG · DE

Inventors

• Franz Muller · Blankenloch, DE
• Jurgen Pohlenz · Ravensburg, DE
• Hubert Lehle · Meckenbeuren, DE
• Edwin Baur · Friedrichshafen, DE
• Herbert Simon · Friedrichshafen, DE

Key dates

• Filing date: Dec 10, 1991
• Grant date: Aug 31, 1993
• Expiry date: Dec 10, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19405
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention concerns a multi-step speed-change transmission. An intermediate transmission (9) is situated between an input group (7) and a main group (8). A double gear (28, 29) forms an additional overdrive. The speed-change transmission according to the invention is provided for use in motor vehicles utilized in agriculture or construction.