Vehicle with laterally adjustable steering axis

Claim 1

Motorized or tractor drawn vehicle designed to travel on a particular surface, said vehicle comprising at least two wheels, at least one of which is a drive wheel, each of said wheels comprising a central portion connected to a base structure of the vehicle and a peripheral portion concentric to the said central portion and disposed to turn about the central portion, said central portion and said peripheral portion being interconnected by at least a first ring shaped bearing, said first bearing comprising at least one interior annular element integral with the said central portion of the wheel and at least one peripheral annular element concentric to said interior annular element and integral with the said peripheral portion, the latter having a contact means appropriate to the nature of the surface with which the vehicle will be in contact, and the said central portion of the wheel being connected to the base structure of the vehicle at at least one connection point which is off-center on the wheel, wherein the drive wheel is connected to the base structure of the vehicle by at least one second bearing disposed in a plane perpendicular to the plane of the first bearing and comprising a first interior element integral with the interior annular element of the said first bearing and a second exterior element integral with the base structure of the vehicle, characterized in that the said second bearing (24) is eccentrically mounted on a plate (40) pivotable around an axle (41) perpendicular to the plane of the plate and parallel to the arc (45) of the second bearing (24) and in that the vehicle is provided with a device disposed to cause the said plate (40) to pivot around its axle (41).