Patent ID: 8282130
Filing Date: 2012-10-09
Classification: B62D,B66C,E04G

Abstract:
1. 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 activation mechanism of each front support boom ( 42 ′, 42 ″) has a cylinder/piston unit ( 54 ′, 54 ″) configured as a hydrocylinder, which extends beyond the face part ( 52 ) of the semi-trailer ( 14 ), which unit is articulated, at its one end, directly with a bearing eye ( 56 ′, 56 ″) that is fixed in place on the semi-trailer, and, at its other end, indirectly with the related support boom ( 42 ′, 42 ″), by way of a deflection gear mechanism ( 58 ′, 58 ″).