Adjustable-width attachment for agricultural machines

US6152240A · kind A · utility

Assignee

• Usines CLAAS France S.A.S · FR

Inventors

• Ansgar Nonhoff · Coesfeld, DE
• Egbert Scholz · Rheda-Wiedenbrück, DE

Key dates

• Filing date: Jul 21, 1998
• Grant date: Nov 28, 2000
• Expiry date: Jul 21, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01D89/004
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Agricultural machine are generally equipped attachments, such as pick-up drums or cutting attachments. Generally, the width of the attachment is greater than that of the main machine or tractor. Because the agricultural machines travel in road traffic, the permitted width of the attachment must not exceed the legally prescribed width of a road vehicle. These attachments usually have supporting wheels for supporting the attachment on the ground. The supporting wheels are mounted and rotate upon carrying arms. Also, the attachment's height above the ground is adjustable by an adjusting device. The attachment provides for positioning the supporting wheels such that the width of the attachment is within the limits permitted in road traffic when traveling in public road traffic, although during working use, the width of the attachment is beyond the width permitted on the road.