Land vehicles – Wheeled – Articulated vehicle
Patent
1986-09-19
1988-11-08
Love, John J.
Land vehicles
Wheeled
Articulated vehicle
248184, 280 432, 280 4322, 280 4323, 280 80B, 280656, B62D 5306
Patent
active
047830930
ABSTRACT:
Method and apparatus for relieving friction during adjustment of a sliding tandem trailer's rear wheel assembly with respect to the trailer bed includes a plurality of bed lift devices mounted in the vicinity of the rear wheel assembly. Each of the devices are pivotally mounted to a sliding frame member of the rear wheel assembly for engagement with a respective fixed frame member of the trailer bed. By moving a roller, supported upon a pin which is rotatably mounted to a hydraulically-actuated piston contained within the device, into and out of engagement with the fixed frame member, the relative position of the rear wheel assembly may be suitably adjusted with a minimum of friction to a desired position which properly distributes, relative to the axles of the rear wheel assembly and the axles of the cab, the load upon the trailer bed.
REFERENCES:
patent: 2715029 (1955-08-01), Compton
patent: 2941818 (1960-06-01), Hubbard
patent: 3085816 (1963-04-01), Tantlinger et al.
patent: 3425710 (1969-02-01), Hulverson
patent: 3847405 (1974-11-01), Pearce
Machine Design, (Penton Publication), Sep. 9, 1971, pp. 73 and 74.
Criswell Kevin
Cusick Kent
Hill Mitchell J.
K. C. Mfg., Inc.
Love John J.
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