Patent ID: 6848879

Claim:
A self propelled truck having a support chassis or frame comprising two longitudinal sides spaced from one other, at least one pair of side uprights and two respective longitudinal elements each designed to rigidly connect with a respective pair of uprights, as well as at least with said two longitudinal elements arranged to bridge said two truck sides and to delimit therewith at least one lifting-lowering shaft for a bin, two pairs of wheels arranged on opposite sides of said support chassis, a steering device and driving means for at least one wheel or pair of wheels at least one pair of transverse members designed to rigidly bridge the said two longitudinal sides and to delimit therewith a longitudinal tunnel, at least one lifting-lowering shaft for at least one bin between the said longitudinal sides, lifting-lowering means carried by said support chassis at each lifting-lowering shaft and displaceable between a fully lowered position and a fully lifted position, said lifting-lowering means comprising at least one carriage or slide at each side of said support chassis, said carriage or slide being slidably mounted along a respective pair of uprights, and at least one linear actuator designed to cause a respective carriage or slide to be displaced along a respective lifting-lowering shaft, and removable engagement means for a bin which is rigidly displaceable with said lifting-lowering means and designed to engage a bin on the ground at a lifting-lowering shaft and to hold it constrained to said lifting-lowering means, driving means for said lifting-lowering means and said removable engagement means, and a control unit, and wherein said removable engagement means for engaging a bin comprises a section bar member or stirrup having a pair of wings extending normal to each other and pivoted about an articulation axis to a respective longitudinal element, a linear actuator for controlling said stirrup to angularly move a wing of said stirrup between a rest position substantially in alignment with said longitudinal element and a working position, in which said wing extends inside shaft.