Patent ID: 8366148
Filing Date: 2013-02-05
Classification: B62D,B66C,E04G

Abstract:
1. A mobile work machine having a chassis ( 10 ) that is designed as a tractor-trailer, a multi-axle tractor unit ( 12 ) and a multi-axle semi-trailer ( 14 ) that carries the work machine and is connected with the tractor unit by means of a fifth-wheel coupling ( 16 ), having a support construction ( 38 ) that is disposed in the region of the semi-trailer ( 14 ) and can be supported on a surface, raising the tractor-trailer, which construction has two front support booms ( 42 ′, 42 ″) disposed at bearing locations ( 48 ′, 48 ″) on the tractor unit end of the semi-trailer ( 14 ), symmetrical to the longitudinal chassis axis, which can be pivoted between a transport position and at least one support position, by means of a hydraulically driven activation mechanism, in each instance, and two rear support booms ( 44 ) that can be pivoted between a transport position and at least one support position, whereby the semi-trailer ( 14 ) has means for raising and holding the tractor unit ( 12 ) in place, wherein the bearing locations ( 48 ′, 48 ″) of the front support booms ( 42 ′, 42 ″) have a continuous, axis-central cavity ( 80 ), and wherein the means for raising and holding the tractor unit in place, disposed on the semi-trailer ( 14 ), each have a lifting element ( 82 ) that passes through the central cavity ( 80 ) of the bearing locations ( 48 ′, 48 ″), from top to bottom, and can be releasably fixed in place on the tractor unit ( 12 ).