Patent ID: 7140829
Filing Date: 2006-11-28
Classification: E02F

Abstract:
1. A vehicle comprising a chassis, hydraulic drive means in the chassis, a superstructure on the chassis, an apparatus for displacing the superstructure relative to the chassis so that said superstructure is eccentrically rotatable about said chassis, said displacing apparatus directly connecting the superstructure to the chassis; said superstructure including a cab for an operator of the vehicle, a boom, and a rotary drive for rotating the superstructure relative to the chassis, means in the superstructure for generating hydraulic pressure for operating the rotary drive and the hydraulic drive means, a live ring connecting the superstructure to the chassis, the live ring being engaged by the rotary drive and being driven thereby, and wherein the apparatus for displacing the superstructure comprises at least one of an eccentric plate and a displacement plate carrying the live ring, a displacement bearing or a guide connecting the eccentric plate the displacement plate, respectively, to the chassis, and a conduit for conducting hydraulic fluid between the superstructure and the chassis.