Trailer suspension apparatus
AssigneeDBX, Inc.
InventorsHerbert E. Cooper, Josef P. de Fazekas, E. Dallas Smith
Life of this patent
Estimating the term…
Abstract
Trailer suspension apparatus for increasing the cargo capacity of the trailer. The apparatus includes a U-shaped frame having a transverse structure and upright structures at the ends of the transverse structure. The trailer wheels are disposed in the upright structures with the upright structures being at least in part over the tracks of the wheels. The wheels are resiliently suspended from the upright structures. The transverse structure is positioned beneath the rolling axes of the wheels to permit the trailer body to provide cargo space between the wheels and over the transverse structure.
Claims20
A wheel suspension apparatus in which the wheels on opposites of a vehicle are independently suspended, comprising:
- a U-shaped frame having a transverse structure and upright structures carried at the ends of the transverse structure, said upright structures having downwardly-facing open regions therein;
- wheels disposed in said open regions and having rolling axes, said upright structures being disposed respectively at least in part above the tracks of said wheels, said transverse structure connecting said upright structures and being disposed beneath the rolling axes of said wheels;
- and
- means for suspending each of said wheels, respectively, on said upright structures and movable vertically with respect to said upright structures and independently movable vertically relative each other.
A wheel suspension apparatus in which the wheels on opposite sides of a vehicle are independently suspended, comprising:
- a U-shaped frame having a transverse structure and upright structures carried at the ends of the transverse structure, said upright structures having downwardly-facing openings thereon;
- wheels disposed in the open regions of the upright structures, the upright structures being disposed respectively at least in part above the tracks of said wheels, said wheels having rolling axes and the transverse structure being disposed beneath the rolling axes of said wheels;
- a pair of trailing suspension arms having front and rear ends;
- pivot means for pivotally supporting each of said arms at its forward end on said upright structure with its rear end being movable vertically between uppermost and lowermost positions, said pivot means being disposed in a region above the track of said wheel;
- biasing means for separately biasing each said suspension arm in an intermediate position between the uppermost and lowermost positions, said biasing means being disposed between the rear ends of said arms and said upright structure, said biasing means being disposed in a region above the track of said respective wheel;
- and
- a spindle on each said arm intermediate its ends for rotatably carrying each said wheel.
Dependencies are inferred from the claim text.