Patent ID: 7658397

Claim:
A tractor and trailer combination comprising: a tractor having longitudinal first and second frame members, a fifth wheel hitch mounted on the frame members, a first U-shaped channel member having a longitudinal groove, a first bracket connecting the first U-shaped channel member having a longitudinal groove, a first bracket connecting the first U-shaped channel member to the first frame member, a second U-shaped channel member having a longitudinal groove located generally parallel to the first U-shaped channel member, a second bracket connecting the second U-shaped channel member to the second frame member, a trailer having a bottom bed, a kingpin secured to the bed adapted to lock onto the fifth wheel hitch, wheels operatively connected to a rear portion of the bed, a first longitudinal rail secured to the bed, a second longitudinal rail located generally parallel to the first rail secured to the bed, said first and second rails being located in said longitudinal grooves of the first and second U-shaped channel members when the kingpin is locked onto the fifth wheel hitch, and releasable members securing the first and second rails to the first and second U-shaped channel members.