Side loading and unloading trailer
OwnerDonald E. McMulleninventor
Life of this patent
Estimating the term…
Abstract
An apparatus is disclosed for side loading and unloading large objects such as cylindrical fuel tanks from flat bed trailers. Double pivoted links in combination with a bent lever permits lateral loading and unloading from a plane below the level of the trailer bed.
Claims7
A side loading and unloading trailer comprising, in combination, an elongated trailer having a longitudinal frame and at least one transverse axle secured to said frame rotatably mounting vehicle wheels for transport of said trailer, said trailer frame including at least two longitudinal spaced-apart frame members and a plurality of cross frame members interconnecting the longitudinal frame members and rigidly secured thereto, an elongated load-supporting bed normally positioned on said frame, at least two spaced-apart links each pivotally mounted at one end on one side of said trailer frame and pivotally mounted at the other end to the corresponding side of said load supporting bed, an actuating member comprising a bent lever pivotally mounted at one end to form a fulcrum on one side of said trailer frame and pivotally mounted at the opposite end on the corresponding side of said load supporting bed, said pivotal linkages and said actuating mechanism mounted on the same side of said trailer frame and load supporting bed, and a piston-cylinder assembly pivotally mounted at one end on said trailer frame and pivotally mounted at the other end intermediate the ends of the bent lever whereby extension of the piston from the cylinder pivots the load supporting bed about the said links laterally outwardly from the side of said trailer frame and retraction of the piston into the cylinder pivots the load supporting bed about the links laterally inwardly onto the trailer frame.
Dependencies are inferred from the claim text.