US 11,952,731 B2
Method for pivoting a travel unit of a road milling machine and road milling machine
Stephan Lang, Boppard (DE); Moritz Starkmeth, Boppard (DE); and Matthias Schaaf, Boppard (DE)
Assigned to BOMAG GmbH, Boppard (DE)
Filed by BOMAG GmbH, Boppard (DE)
Filed on Jan. 12, 2022, as Appl. No. 17/573,887.
Claims priority of application No. 102021000333.0 (DE), filed on Jan. 22, 2021.
Prior Publication US 2022/0235523 A1, Jul. 28, 2022
Int. Cl. E01C 23/088 (2006.01); B60G 3/01 (2006.01); B60G 17/019 (2006.01); B60G 17/056 (2006.01); B60S 9/12 (2006.01); B60S 9/14 (2006.01)
CPC E01C 23/088 (2013.01) [B60G 3/01 (2013.01); B60G 17/01908 (2013.01); B60G 17/0565 (2013.01); B60S 9/12 (2013.01); B60S 9/14 (2013.01); B60G 2300/09 (2013.01); B60G 2400/051 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method for pivoting a travel unit on a machine frame of a road milling machine between an outer end position and an inner end position offset toward a center of the machine with respect to the outer end position, the road milling machine having a travel mechanism with multiple travel units, of which at least one travel unit is height-adjustable via a lifting column, the method comprising the steps of:
a) positioning a support foot mounted on the machine frame in a ground contact position to support the machine frame;
b) lifting the travel unit, pivoting the travel unit between the outer end position and the inner end position, lowering the travel unit; and
c) positioning the support foot in a stowed position.
 
17. A road milling machine for milling off a ground, comprising:
a drive motor;
an operator platform;
a machine frame supported by pivotable and non-pivotable travel units, wherein at least one travel unit is height-adjustable via a lifting column and is pivotable around a vertical swivel axis between an outer end position and an inner end position offset toward a center of the machine relative to the outer end position; and
a milling drum mounted for rotation in a milling drum box,
wherein a support foot is provided, which is configured to support, in a ground contact position, the machine frame on the ground during the pivoting of the pivotable travel unit.