Land vehicles: dumping – Tilting – Tilting about plural or shifting fulcrums
Patent
1982-06-10
1983-05-10
Spar, Robert J.
Land vehicles: dumping
Tilting
Tilting about plural or shifting fulcrums
298 22P, B60P 116
Patent
active
043826326
ABSTRACT:
A stabilizer system for automatically leveling the dump body of a rear dumping vehicle. The system is adapted to be employed with a tractor-trailer rig including an elongated pivot dumping body associated with a trailer. First and second hydraulic rams coupled to the front of the dump body are employed to tilt and simultaneously level the trailer dump body during unloading. The lower ends of the hydraulic rams terminate in pressure plate apparatus adapted to contact the driven, rear wheeled axles of the tractor unit. The pressure plates include a plurality of rollers rotatably secured to the pressure plate which support the weight transmitted by the rams while permitting rotation of the tractor tires. An electrical-hydraulic system controlled by a pivoted pendulum appropriately actuates the rams for leveling the apparatus. Thus the entire unit may be manuevered by the tractor while unloading and tilting the dump body, simultaneously with the automatic leveling function. The pressure plate assembly is removably pivoted to the truck tractor frame to permit quick removal for deployment in a road position.
REFERENCES:
patent: 3421793 (1969-01-01), Pioch
patent: 3459451 (1969-08-01), Hoy
patent: 3640578 (1972-02-01), Finney
patent: 4145682 (1979-03-01), Cook
patent: 4216996 (1980-08-01), Pitts
Carver Stephen D.
Muncy Ken
Spar Robert J.
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