Motor vehicles – Motor as source of power for other machine – Other machine is creeper drive on motor vehicle
Patent
1998-05-08
2000-01-18
Rice, Kenneth R.
Motor vehicles
Motor as source of power for other machine
Other machine is creeper drive on motor vehicle
180324, B60K 2500
Patent
active
06015019&
ABSTRACT:
A vehicle is disclosed including a load carrying box for the transport of material to a work site in an over-the-road manner. An auxiliary drive and steering system operates at the site for control of vehicle speed and direction with the vehicle operator re-located out of the vehicle to monitor material discharge. The motor drives the vehicle through a gear reduction unit and power transmission component powering a tooth plate clutch mounted on a driveline segment. An engine powered hydraulic pump provides an auxiliary drive bi-directional motor with a remotely controlled directional valve regulating motor speed and direction. A motor control circuit also includes counterbalancing valves served by the directional valve and a torque relief valve dissipating motor torque at the end of an auxiliary drive operation allowing clutch disengagement without risk of clutch damage. An auxiliary steering system includes a directional valve to control in an infinte manner, motor speed and direction in proportion to signal strength. An operator's station, located exteriorly of the cab, includes joystick control means for transmitting signals to the drive and steering directional valves to regulate the same in proportion to the strength of signals transmitted. The steering directional valve is biased to a closed position to retain the steered wheels in a selected position when traversing irregular terrain.
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patent: 4318451 (1982-03-01), Liggett
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patent: 4846581 (1989-07-01), Osterlund et al.
patent: 5190118 (1993-03-01), Yelton
patent: 5226497 (1993-07-01), Beaton
Grimes Karl V.
Grimes Lahon H.
Yelton James E.
Chassis Remote, Inc.
Givan, Jr. James D.
Rice Kenneth R.
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