Roadworking machine

US5893677A · kind A · utility

Assignee

• Wirtgen GmbH

Inventors

• Guenter Haehn · Rübhausen, DE
• Dieter Simons · Kürten, DE
• Peter Busley · Linz, DE

Key dates

• Filing date: Nov 7, 1997
• Grant date: Apr 13, 1999
• Expiry date: Nov 7, 2017

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E01C23/065
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

In a machine used to refurbish roads, having a driver's cab for one operator, an automotive running gear with two axles (4) and a working roller (8) that is mounted to pivot relative to the machine frame and that is enclosed in a hood (7) which defines a working chamber, and having a drive motor (9) with the necessary output to drive the working roller (8) and to power the vehicle's travel, the invention provides that a drive unit containing the working motor (9) is mounted in a pivoting frame (13) and forms a unit (2) that can be pivoted relative to the machine frame (1), that the working roller (8) is also mounted in the pivotable unit (2) and, together with the latter (2), can be pivoted relative to the hood (7), which has a fixed mounting to the machine frame (1), and that the working roller (8) is directly weighted by the unit (2), virtually the entire machine weight being concentrated between the running gear axles (4) and transferred to the pivotable unit (2).