Vehicle with loading ramp

Claim 1

A VEHICLE COMPRISING AN ELONGATED FRAME, GROUND WHEEL ASSEMBLIES, SPRING SUSPENSION MEANS YIELDABLY SUPPORTING THE FRAME ON SAID WHEEL ASSEMBLIES, A DECK SUPPORTED ON AND EXTENDING FROM END-TO-END OF THE FRAME, SAID FRAME HAVING A DOWNWARDLY SLOPING OVERHANGING END, A RAMP MEMBER DISPOSED BEYOND AND FORMING AN EXTENSION OF SAID OVERHANGING END, MEANS CONNECTING AN INNER END OF SAID RAMP MEMBER TO SAID OVERHANGING FRAME END FOR SWINGING AND ROCKING MOVEMENT OF THE RAMP MEMBER RELATIVE TO THE FRAME ABOUT TWO SPACED SUBSTANTIALLY PARALLEL AXES DISPOSED CROSSWISE OF THE FRAME, SAID MEANS NORMALLY SUPPORTING SAID RAMP MEMBER WITH AN OUTER END ONLY THEREOF RESTING ON THE GROUND AND WITH AN UPPER SURFACE THEREOF DISPOSED NEARLY COPLANAR WITH THE DECK PORTION OF SAID OVERHANGING FRAME END, SAID RAMP MEMBER HAVING A BOTTOM SURFACE DISPOSED AT AN ACUTE ANGLE TO SAID UPPER SURFACE AND AT AN INCLINE RELATIVE TO THE GROUND WHEN THE RAMP MEMBER IS SUPPORTED BY SAID MEANS AND SAID OUTER END, SAID MEANS ACCOMMODATING SWINGING MOVEMENT OF THE RAMP MEMBER RELATIVE TO SAID MEANS AND TO SAID FRAME END TO ALLOW THE RAMP MEMBER TO ROCK IN A DIRECTION FOR DECREASING THE INCLINATION OF ITS TOP SURFACE AND TO CAUSE SAID BOTTOM SURFACE TO ASSUME A POSITION IN FLUSH ENGAGEMENT WITH THE GROUND WHEN SAID SPRING SUSPENSION MEANS YIELDS IN RESPONSE TO A PRESSURE ON THE DECK OR ON THE UPPER SURFACE OF THE RAMP MEMBER FOR DECREASING THE INCLINATION OF SAID DECK PORTION THEREOF AND TO RETAIN SAID DECK PORTION SUBSTANTIALLY COPLANAR WITH THE TOP SURFACE OF THE RAMP MEMBER.