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US 4,054,217 AGranted
Load-lifting assembly
OwnerGibson E. Brockinventor
Life of this patent
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OwnerGibson E. Brockinventor
Estimating the term…
A load-lifting assembly adapted to be attached to the bed of a trailer vehicle comprises a mounting platform affixed to the bed, a pair of hydraulic cylinders attached to the mounting platform with their piston rods extending below the mounting platform on each side, and a cross member attached to those piston rods and extending crosswise of the bed. An inverted U-shaped structure is carried by the cross member, the legs of the U extending upwardly therefrom at each end, and the cross bar of the U being positioned above the vehicle bed. In each leg of the U is journalled a vertical shaft which extends below the cross member and carries at its lower end a swing load-supporting member which swings from a load-carrying position crosswise of the bed to a load-clearing position parallel with the bed. Means for rotating the vertical shafts are attached to the cross bar of the U, and means are provided for locking those shafts to the vehicle bed.
A load-lifting assembly adapted for installation on a vehicle bed for picking up loads blocked therebelow and carrying them, comprising a mounting platform adapted to be attached to the vehicle bed, a pair of lifting means affixed at opposite sides of the mounting platform, a cross member disposed below the mounting platform and connected to the lifting means so as to be moved toward and away from the mounting platform thereby, an inverted U-shaped frame disposed above the mounting platform crosswise thereof with each leg connected at its lower end to an end of the cross member, a vertical shaft mounted for rotation in each leg of the frame and extending below the cross member, a swing load-supporting member affixed to the lower end of each shaft normal thereto, and means mounted on the U-shaped frame adapted to rotate the vertical shafts through an arc of at least 90.degree..
Dependencies are inferred from the claim text.