Automotive milling machine, use of a lifting column of a milling machine, as well as method for increasing the operating efficiency of a milling machine

US9085857B2 · kind B2 · utility

Assignee

• Wirtgen GmbH

Inventors

• Hanjo Held · Johannisberg, DE
• Markus Schaefer · Braubach, DE
• Christian Berning · Euskirchen, DE
• Cyrus Barimani · Rübhausen, DE
• Guenter Haehn · Rübhausen, DE

Key dates

• Filing date: Mar 14, 2013
• Grant date: Jul 21, 2015
• Expiry date: Mar 27, 2033

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E01C23/088
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

An automotive milling machine, for the treatment of road surfaces or ground surfaces includes a chassis comprising front and rear suspension axles with a total of no less than three suspension units with a machine frame supported by the chassis, with lifting columns between the suspension units and the machine frame at no less than two suspension units of a suspension axle, said suspension units being transversely offset from one another in the direction of travel, and with a working drum. The working drum is adjustable to a position for driving in travel mode with the working drum raised and, in the adjusted position of the working drum at a distance from the road surface or ground surface, the lifting columns are suitable for coupling to a spring device.