Infinitely variable transmission for a combine header unit

US7213389B2 · kind B2 · utility

Assignee

• Deere & Company · US

Inventors

• Joseph Albert Teijido · East Moline, US
• Jeffrey Wigand · Moline, US
• Daniel Ray Anderson · Bettendorf, US
• Robert W. Hawkins · Fremont, US
• Werner Stettler · Cedar Falls, US
• Helmut Weis · Cochem, DE
• Bernd Kempf · Alzenau, DE
• Johann Pierce · East Moline, US

Key dates

• Filing date: Mar 2, 2004
• Grant date: May 8, 2007
• Expiry date: Jul 9, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01D69/005
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A mechanism for powering a combine header unit at infinitely variable speeds. A primary motor is coupled to a primary input shaft via a clutch, a variable-speed secondary motor is directly coupled to a secondary input shaft, and the header unit coupled to a header output shaft. A planetary gear-train couples the primary input shaft, the secondary input shaft, and the header output shaft to each other. A primary brake is coupled to the primary input shaft, and a secondary brake coupled to the secondary input shaft. A control circuit is employed to command the operation of the clutch, the secondary motor, the primary brake, and the secondary brake in response to operator commands.