Remote control vehicle

Details Remote control vehicle Remote control vehicle

1999-12-10

2001-09-04

Scherbel, David A. (Department: 3752)

Fire extinguishers

Mount, cabinet or guard

Movable relative to fire

C169S052000, C180S006480, C414S685000, C901S001000

Reexamination Certificate

active

06283220

ABSTRACT:

BACKGROUND TO THE INVENTION
This invention relates to a remote control vehicle.
SUMMARY OF THE INVENTION
An object of the invention is to provide a remote control vehicle which is particularly suitable for use in confined spaces and in a hostile environment.
According to the invention we provide a remote control vehicle comprising a body having a front end and a rear end and provided with first and second ground engageable propulsion means respectively disposed on opposite sides of the vehicle and in which the first and second propulsion means are driven by first and second transmission means respectively to permit the vehicle to be propelled and steered by driving the propulsion means on one side of the vehicle independently from the propulsion means on the other side of the vehicle, a boom assembly having carrying means for carrying an implement on the boom assembly, the boom assembly being mounted on the body for lifting movement between a raised position and a lowered position by a lifting means and wherein the ground engageable propulsion means and the lifting means of the boom assembly are operable by a receiver, of an electromagnetic signal, provided on the body.
The electromagnetic signal may be transmitted for reception by the receiver by a transmitter disposed at a location remote from said vehicle.
Each transmission means may comprise a hydrostatic motor driven by a respective hydrostatic pump, the output of each pump being controlled by an electrical signal supplied by said receiver in response to said electromagnetic signal.
Each pump may be provided with at least one hydraulic servo mechanism for adjustment of the output of said pump, the servo mechanism being operable by said electrical signal.
The or each servo mechanism may comprise an electrically operable valve which is operated by said electrical signal.
The servo mechanism may comprise at least one hydraulically operated motor means to adjust the output of said pump.
Each pump may be a swash plate pump and the angle of the swash plate may be adjustable by said electrical signal.
The angle of the swash plate may be adjustable by said hydraulically operated motor means of the pump.
The lifting means of the boom assembly may comprise a first motor means disposed between the boom and the body, supply of fluid to the first motor means being controlled by an electrical signal supplied by said receiver in response to said electromagnetic signal.
The implement may be movable relative to the boom assembly by a second hydraulic motor means.
The second hydraulic motor means may comprise a crowd ram connected between the boom assembly and the carrying means for pivotal movement of the carrying means relative to the boom assembly.
Supply of fluid to the second motor means may be controlled by an electrical signal supplied by said receiver in response to said electromagnetic signal.
Supply of fluid to the first and/or second motor means may be controlled by an electrically operable valve which is operated by a respective electrical signal.
The vehicle may be provided with a first auxiliary device operable by a third motor means.
Supply of fluid to third motor means may be controlled by an electrical signal supplied by said receiver in response to said electromagnetic signal.
The vehicle may be provided with a second auxiliary device operable by a fourth motor means.
Supply of fluid to the fourth motor means may be controlled by an electrical signal supplied by said receiver in response to said electromagnetic signal.
Supply of fluid to the third and/or fourth motor means may be controlled by third and/or fourth electrically operable valves which are operable by said electrical signal.
The or each electrically operable valve may be a valve in which supply of hydraulic fluid is controlled by a proportional solenoid.
The or each electrically operable valve may supply hydraulic fluid to a hydraulically operated valve which is adapted to be operated to supply hydraulic fluid to an associated motor.
At least one of the first, second, third or fourth motor means may comprise a hydraulic ram having a piston movable in cylinder and operable as a result of said supply of hydraulic fluid thereto.
The or each electrically operable valve may be supplied with hydraulic fluid from a manifold
The or each electrically operable valve and/or the manifold and/or the receiver and/or the or each hydraulically operated valve may be disposed in a control compartment of the vehicle which is disposed within a housing.
The control compartment may be enclosed by metal walls, roof and floor with appropriate connection therethrough for components disposed within the control compartment.
The vehicle may have means to dispense water or other fire fighting medium therefrom.
Said means may comprise a nozzle or the like to provide a jet of water or the like for said medium which may be controlled by an electrical signal supplied by said receiver in response to said electromagnetic signal.
The vehicle may have a reservoir to contain water or said other fire fighting medium for dispensing by said dispensing means.
The vehicle may have a pump or the like to feed water or said other medium from the reservoir to be dispensed from said dispensing means under pressure.
The nozzle and/or the reservoir and/or the pump may be provided as an implement comprising fire fighting attachment to be carried by said boom assembly.
Said fire fighting attachment may be carried by said carrying means.
The vehicle may be unprovided with an operator's seat and/or operator controls for propelling and steering the vehicle and/or lifting movement of the boom assembly and/or operation of the first and/or second auxiliary device.
The vehicle may be provided with metal conduits, such as steel conduits, for containing electrical wiring such as for auxiliary electrical connections and two emergency stop switches.
Hydraulic fluid may be supplied to at least one of the first, second, third or fourth motor means through at least one flexible hose and the flexible hose may be encased in a fire resistant means.
The boom assembly may have said carrying means at an outer end thereof and an inner end of the boom assembly may be mounted on the body at or adjacent the rear end of the body.
In said lowered position the boom assembly may extend forwards from said inner end so that the implement is disposed forward of the front end of the body.
The boom assembly may be disposed on one side of a longitudinal axis of the vehicle which axis is disposed midway between said first and second ground engageable propulsion means.
The boom arm assembly may have an implement carrying member which projects from the outer end of the lift arm assembly and extends transversely of the body and has said implement carried thereon.
The ground engageable propulsion means may comprise wheels.
The wheels may be provided with tires which do not rely on gaseous inflation.
The first auxiliary device may comprise a clamping means operable to hold a load on said implement.
The third motor means may comprise a ram connected between the clamping means and the implement.
The second auxiliary device may comprise means to rotate the implement about an axis which lies in a vertical plane containing the longitudinal axis of the boom.
The vehicle may be provided with a condition sensor means.
The condition sensor means may provide a signal to a transmitter, of an electromagnetic signal, provided on the body.
The electromagnetic signal may be transmitted by the transmitter on the body to a receiver disposed at a location remote from said vehicle.
The receiver may be disposed at the same location as said transmitter and may be spatially associated therewith.
The vehicle may have at least one camera to provide a signal to a transmitting means, provided on the vehicle, for transmission of an electromagnetic signal to a receiving means disposed at a location remote from the vehicle for display of an image provided by the camera.
In one subsidiary aspect of the invention:
The boom assembly may comprise a generally “L” shaped member

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