Road milling machine and method for positioning the machine frame parallel to the ground
US8424972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | May 24, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a self-propelled road milling machine (1), particularly a cold-milling machine, comprising a track assembly carrying the machine frame (4) via lifting columns (12,13), a milling roller (6) supported on the machine frame (4) for treatment of a ground surface (8) or traffic surface (8), height-adjustable side plates (10) for edge protection, arranged to rest on the ground surface (8) or traffic surface (8) to be treated, a height-adjustable stripping means (14) arranged in the moving direction behind the milling roller (6) and adapted to be lowered, during operation, into the milling track (17) generated by the milling roller (6), and a control means (23) for controlling the milling depth of the milling roller (6), the control means (23) detecting the milling depth of the milling roller (6) from the measurement values of at least one measuring means (16), it is provided that the control means (23) is operative to automatically control the lifting condition of at least one rear and/or front lifting column (12,13) as seen in the traveling direction, for establishing the parallel orientation of the machine frame (4) relative to the ground surface (8) or traffic surface (8) or to a pr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.