Lahon H Grimes

US Patent:

6015019, Jan 18, 2000

Filed:

May 8, 1998

Appl. No.:

9/074949

Inventors:

Lahon H. Grimes - Springfield OR
Karl V. Grimes - Springfield OR
James E. Yelton - Eugene OR

Assignee:

Chassis Remote, Inc. - Springfield OR

International Classification:

B60K 2500

US Classification:

180 532

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.