Construction machine for machining floor surfaces

US7644994B2 · kind B2 · utility

Assignee

• Wirtgen GmbH

Inventors

• Peter Busley · Linz, DE
• Olaf Gaertner · Farster Bauerschaft, DE
• Dieter Simons · Kürten, DE

Key dates

• Filing date: May 10, 2001
• Grant date: Jan 12, 2010
• Expiry date: Oct 23, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

In a construction machine 1 for the treatment of ground surfaces, comprising a chassis 2 carrying a machine frame 4, a drive motor 6, a work drum 8 supported on the machine frame 4 and having exchangeable tools 14 fastened to its outer surface 12, and a drive line 18 for the work drum 8 comprising at least the drive motor 6 and a transmission coupled to the drive motor 6, it is provided that an auxiliary drive 20, adapted to be coupled to the drive line 18, is arranged to rotate the work drum 8 in the raised condition of the drum by a predetermined or selectable rotational angle, the torque of the auxiliary drive 20 being higher than the moment of inertia of the work drum 8 and of the drive line 18 in the switched-off or decoupled state of the drive motor 6.