Patent ID: 7891742

Claim:
Construction machine with a machine frame that is carried by a chassis, with a working drum having a drum rotational axis, and with a drive train that comprises at least the following elements: a drive engine having an output axis parallel to the drum rotational axis, a traction mechanism for a mechanical drive of the working drum with a drive element and an output element and a traction element, a device for switching the torque between the drive engine and the working drum, and a device for driving at least one hydraulic pump, characterized in that, the elements of the drive train are divided into at least two groups, the first group includes at least the drive engine, the second group includes at least the drive element of the traction mechanism, where the first and the second groups are connected to one another via an articulated coupling device having a coupling rotational axis parallel to the output axis of the drive engine, and wherein the first group is attached to the machine frame elastically with low spring stiffness for the purpose of reducing the transmission of vibrations to the machine frame, and that the second group is attached to the machine frame with high spring stiffness or in a rigid manner, the high spring stiffness being higher than the low spring stiffness.