Patent ID: 7204378
Filing Date: 2007-04-17
Classification: B66C

Abstract:
1. A goods transshipment apparatus, comprising: a) a mobile substructure having a front end and a rear end; b) a superstructure rotatable relative to said mobile substructure about a vertical axis of rotation and includes a driver's cab and engine compartment; c) a jib operably connected to said superstructure; and d) a pair of parallel connecting rods each of which is pivotally connected at a first end thereof to said mobile substructure and at a second end thereof to said superstructure to support said superstructure above said substructure in a higher operating position and to lower said superstructure relative to said substructure in a lower resting position wherein said axis of rotation remains vertical when said superstructure is raised or lowered to the upper operating position or the lower resting position, respectively, and wherein one of said pair of parallel connecting rods rests against said mobile substructure and the other of said parallel connecting rods rests on the ground behind said mobile substructure rear end when said superstructure is in the lower resting position.