The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2017
Filed:
Mar. 07, 2016
Wirtgen Gmbh, Windhagen, DE;
Wirtgen GmbH, , DE;
Abstract
The present invention relates to a self-propelled construction machine, in particular a road milling machine, a recycler or a surface miner, comprising a machine framesupported by a chassiswhich comprises front and rear running gear. A working deviceis arranged on the machine frameand comprises a working rollerfor working the ground. Lifting devicesare associated with the individual running gearsand can each be retracted or extended for raising or lowering the running gears with respect to the machine frame. In addition, the construction machine comprises a control unitfor actuating the lifting devices, which control unit comprises a lifting position measuring devicefor detecting the lifting position of the lifting devices and a tilt detection devicefor detecting the tilt of the machine frametransversely to the working direction A of the construction machine. The control unitprovides a first mode of operation for working the ground and a second mode of operation for moving the construction machine, and is characterized in that, in the second mode of operation, the lifting devicesassociated with the individual running gearsor wheel are actuated in such a way that the machine frameis substantially levelled transversely to the working direction A of the construction machine, the ground clearance b preferably being at a maximum or the distance not falling below a minimum distance.