FIELD OF INVENTION
The present invention in general relates to a wheel barrow more particularly to a wheel barrow which is three wheel driven and hydraulically powered.
BACKGROUND
Efficient movement of materials is a very important activity for improving the productivity of operations in Industries, factories, hospitals, office complex or campus, agricultural farms, botanical gardens, poultry farms, airports, railway stations, etc. At present all such material movement is happening by manual process where it is being done in an unscientific and unergonomic way. This is making the process of material movement un-productive and cumbersome for workers/labours involved in transportation of materials.
Reference has been made to “US6409273B1”, disclosing a tracked carrier (10) as illustrated in figure 1 having a frame (6) and a handle (1) secured to the frame. The handle (1) has a proximal and a distal end thereto and may have a pair of downwardly depending support elements. The handle (1) has a brake lever (2) for controlling brakes mounted thereon. A first wheel (14) is secured to the distal end of the handle by frame elements and a pair of drive tracks secured to the proximal end of the handle by the frame elements. A drive engine (5) is mounted on the frame (6) and linked to the pair of drive tracks (16) by a drive mechanism. A throttle mechanism is operably engaged to the drive engine (5). A hydraulic pump (7) linked to a hydraulic drive motor. The hydraulic pump (7) is linked to a pair of drive track arm levers. An accessory hydraulic attachment valve (32) for attaching various mechanical devices, preferably with hydraulic hoses, is secured to the frame (6) and to a secondary hydraulic pump (36), and may accommodate operable linkage to various devices such as snowblowers, weed mowers, gardening plows, cultivator devices, scraping devices, augers, hydraulic mixers, carrier tubs, and other attachments. However, there is a tracked version, hence more mechanical parts are required and there is no steering in this machine hence not easily manoeuvrable. Also, there is no dumping arrangement for the bucket, hence must be manually unloaded.

Reference has been made to “US20160052440A1”, disclosing a three wheel zero emission dumper vehicle, the vehicle comprising a chassis, the chassis supporting: two fixed front wheels, a single steering rear wheel, and a load carrying assembly, wherein the vehicle is configured such that a distribution of weight supported by the chassis is such that a centre of gravity of the vehicle is maintained within a triangle formed by the contact of the wheels on the ground in both loaded and unloaded states of the load carrying assembly. However, in this system the operator has to stand on the platform given to use the machine.
Further, reference has been made to “US4645264A” disclosing a motorized dump-type vehicle is provided having a chassis frame, a gasoline engine mounted on said frame, a dump container pivotally mounted on the front of said frame and a hydraulic system enabling said container to be raised and lowered by a hydraulic cylinder and said vehicle to be driven in either forward or reverse directions and braked by hydraulic drive motors. The hydraulic fluid is cooled by an oil reservoir tank forming a structural part of the frame and positioned such that heat from the hydraulic fluid can dissipate itself in the container and its contents. In comparison to this, the present invention discloses wheels are provided with mud guards for safety and splashing of mud during operation in wet soil conditions.
Further, reference has been made to “CA2660669C”, disclosing a mobile material placer with an auxiliary steering system having a direct hydraulic drive mechanism. The mobile material placer includes a body, a material hopper coupled to the body and configured to receive and store material, a feeder conveyor coupled to the body, and a placer conveyor pivotally coupled to the body. The auxiliary steering system includes a direct hydraulic drive mechanism coupled to the steering column and which causes the steering column to rotate bi-directionally in response to fluid flow from a hydraulic pump. In comparison to this, the present invention discloses that the front wheel 2 drive wheels are directly coupled to hydraulic drive hub motors which operate in both forward and reverse directions. As the drive is coupled to hydraulic system the wheel is under lock

condition when there is no flow of hydraulic fluid in the system. The hydraulic valve is the system is load sensing directional control valve with fixed displacement pump.
Yet another reference has been made to DE102005026 571A1 which discloses a wheelbarrow has a main frame (1) with a main front wheel (3) and a trailing arm (7) with a small wheel (8). The main frame and trailing arm are linked by a hydraulic jack (5) that raises the wheelbarrow load container (2) with respect to the lower frame. The wheelbarrow further has a motor driving the jack and the main wheel. In comparison to this, the present invention discloses handle bar bracket enables steering and easy manoeuvring, connected to antilock stoppers preventing front wheel from locking while locking the real wheel while turning, and the dumping cylinders enables dumping of materials when loaded in the bucket.
Yet another reference has been made to US8235153B2 which discloses The motorized wheelbarrow has longitudinally extending frame members, which extend into handle portions. Resting height adjustment of the wheelbarrow is achieved with a pair of tubular legs cooperatively attached to a wheelbarrow support strut and a support strut brace. A wheel is secured proximate the front end of the wheelbarrow to mounting points on a wheel frame. An electric motor is attached to a front portion of the support frame members underneath a load rack or load bucket, depending on the barrow type. A battery is attached under the support frame proximate the motor. A drive mechanism consisting of a chain and sprocket is operably linked to a wheel sprocket and to the electric motor. A disk brake assembly having a disk rotor and caliper is disposed on the wheel and frame for engagement with the wheel and is operably engaged to a control mechanism for safe wheelbarrow stopping. However, this system is single wheel system and no dumping facility is available.
Accordingly, there is a need for a three wheel drive hydraulic powered wheel barrow with a steering system enabling easy manoeuvre either with load or when empty and has a dumping system to unload the material at the point of use with improved efficiency and productivity in repetitive operations.

SUMMARY OF THE INVENTION
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. This summary is not an extensive overview of the present invention. It is not intended to identify the key/critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concept of the invention in a simplified form as a prelude to a more detailed description of the invention presented later.
An object of the present invention a three wheel drive hydraulic powered wheel barrow device for easy manoeuvring and dumping of materials.
An object of the present invention is to provide a device wherein handle bar bracket is connected to a rear wheel and the dumping cylinder connected to a bucket;
An object of the present invention is to provide a device wherein disc brake enables slowing of momentum gained while moving downhill.
An object of the present invention is to provide a device wherein the engine configured with a rope recoil start enabling easy operation of engine starting.
An object of the present invention is to provide a device wherein the front wheel is prevented from locking the rear wheel during turning.
An object of the present invention is to provide a device wherein the dumping cylinder is configured to a control valve.
An object of the present invention is to provide a device wherein a throttle lever arrangement connected to the handle bar bracket for reducing the engine rpm to idling speed and moving in the intended direction when going downhill.

An object of the present invention is to provide a device wherein the bucket is reconfigurable or expanded by opening the side walls of the bucket for enabling folding or expansion for loading more materials.
An object of the present invention is to provide a device wherein the wheels are provided with mud guards for safety and splashing of mud during operation in wet soil conditions.
An object of the present invention is to provide a device wherein the engine operates at idle speed of 800 RPM and the maximum RPM may be at 3000 RPM.
An object of the present invention is to provide a device wherein the engine speed is controlled by a hydraulic throttle lever configured on the handle bar bracket.
An object of the present invention is to provide a device wherein the engine is able to be switched off in case of emergency and bring the machine to a stop by means of an engine kill switch and it is fitted within easy reach of the operator in case of emergency. The engine in the machine turns on only if this switch is in on release condition.
An object of the present invention is to provide a device wherein the speed of the device varies according to the load applied and the valve regulates the flow control of hydraulic motors.
In accordance with an aspect of the present disclosure, is to provide a three wheel drive hydraulic powered wheel barrow device comprising a handle bar bracket connected to a rear wheel, a dumping cylinder connected fixed to a chassis on one side and other end to a bucket, a disc brake enabling slowing of momentum gained while moving downhill, an engine configured with a rope recoil start enabling easy operation. The handle bar bracket enables steering and easy manoeuvring, connected to antilock stoppers

preventing front wheel from locking while locking the rear wheel while turning, and the dumping cylinders enables dumping of materials when loaded in the bucket.
Other aspects, advantages, and salient features of the invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the invention.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The above and other aspects, features and advantages of the embodiments of the present disclosure will be more apparent in the following description taken in conjunction with the accompanying drawings, in which:
Figure 1(a) illustrates the schematic details of the three wheel drive hydraulic powered wheel barrow device.
Figure 1(b) illustrates the schematic details from the bottom of the three wheel drive hydraulic powered wheel barrow device.
Figure 2(a) illustrates the side view of the three wheel drive hydraulic powered wheel barrow device.
Figure 2(b) illustrates the front view of the three wheel drive hydraulic powered wheel barrow device.
Figure 2(c) illustrates the rear view of the three wheel drive hydraulic powered wheel barrow device.
Figure 2(d) illustrates the isometric projection of the three wheel drive hydraulic powered wheel barrow device.
Figure 3 (a) and (b) illustrating the device being able to climb a slope of up to 30% gradient with load.
DETAILED DESCRIPTION

The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.
It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more of such surfaces.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments belong. Further, the meaning of terms or words used in the specification and the claims should not be limited to the literal or commonly employed sense, but should be construed in accordance with the spirit of the disclosure to most properly describe the present disclosure.
The terminology used herein is for the purpose of describing particular various embodiments only and is not intended to be limiting of various embodiments. As used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising" used herein specify the presence of stated

features, integers, steps, operations, members, components, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, members, components, and/or groups thereof. Also, Expressions such as "at least one of," when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.
Throughout the specification, an "object" refers to a general object that does not include a communication module, that is, an object that is incapable of a wired and wireless communication with an external device. For example, an object according to an embodiment of the present disclosure may include an analogue paper, a book, an album, a document, a photo, a picture, a cup, a mirror, a wallet, and a paper calendar that does not include digital functions, but it is not limited thereto.
The present disclosure will now be described more fully with reference to the accompanying drawings, in which various embodiments of the present disclosure are shown. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the various embodiments set forth herein, rather, these various embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the present disclosure. Furthermore, a detailed description of other parts will not be provided not to make the present disclosure unclear. Like reference numerals in the drawings refer to like elements throughout.
According to one embodiment of the present invention, illustrated in Figure 1 and 2, a three wheel drive hydraulic powered wheel barrow device comprising a handle bar bracket (3) connected to a rear wheel; a dumping cylinder (12) fixed to a chassis (2) on one side and other end connected to a bucket (1); a disc brake (13) enabling slowing of momentum gained while moving downhill (provided as a safety feature). An engine (10) configured with a rope recoil start enabling easy operation of engine starting thereby eliminating battery and charging system, since it is a manual start process. The handle bar bracket enables steering and easy manoeuvring, connected to antilock stoppers preventing front wheel from locking while locking the real wheel while turning and the dumping cylinders (12) enables dumping of materials when loaded in the bucket (1).

The steering system provided in the device is an essential feature. The steering system articulates the device and gives the device a short turning radius which helps the device to turn and travel in crowded areas. The hydraulic system with the load proportional valve is designed such a way that it behaves similar to Ackermann steering principles. As the front wheels are fixed and the rear tyre has the handle fixed to it for steering, the inner wheel gets locked in the direction of the turn much similar to steering system of the automobiles. This means during a turning the inner wheel rotates slower speed compared to the outer wheel.
The device’s height is ergonomically designed for operation of device by either male or female users. As the maximum speed of the device is less than 3 Km/H, it is a walk along kind of device. The device can make short turns with steering system available in the device. The handle bars are easy to access and ergonomically designed for easy operation of device when empty and with load. The steering handle bar bracket has antilock stoppers to prevent the front wheel from locking while turning.
For Dumping, the dumping cylinder which helps in the dumping of materials when loaded in the bucket is provided. This dumping cylinder operates via a control valve on the device. The dumping cylinder is fixed to chassis on one side and other end to the bucket. When valve is operated the cylinder operates and dumps the material in front of the user/operator. The bucket is then closed with the cylinder retraction. As illustrated in figure 3 the device is able to climb slope of up to 30% gradient with load. As the device is powered with hydraulic system, the device translates and reduces the human effort to push or pull the device on surface with downward slopes. The device is fitted with disc brake to slow down the momentum gained while going downhill. The device has a throttle lever arrangement in the handle bar and when going downhill the engine rpm is reduced to idling speed and move in the intended direction as any other vehicle. The throttle lever increases the engine rpm between idling and maximum engine rpm. As engine is coupled to the hydraulic pump through a belt drive arrangement the increase and decrease in engine rpm directly results in change of hydraulic oil flow. This change in oil flow increases or decreases the device rpm.

As illustrated in figure 3 (a) and (b) the centre of gravity of the device is balanced by design to remain within the wheel base when loaded and empty. Buckets for example, flat bucket and dumper heavy duty bucket, light applications bucket. The bucket is fitted with side guards which can fold or expand for loading more materials. Guards for moving parts like the belt and pulley arrangement may be used. The engine area is covered so that there is no material falling from the top of the device while loading and damaging the engine components. The wheels are provided with mud guards for safety and splashing of mud during operation is wet soil conditions. The increasing or decreasing the speed of the device is done by the hydraulic throttle lever that is provided on the handle bar which is proportionally controlled. As per the load applied the valve regulates the flow control of the hydraulic motors.
The components of the present invention as shown in the figures 1-3 are listed below:
1. Dumper Bucket
2. Fabricated Chassis
3. Handle Bar for Steering
4. Brake Lever
5. Steering Pivot
6. Wheel Rim
7. Traction Tire
8. Hydraulic tank integrated into Chassis
9. Hydraulic Pump
10. Engine
11. Mud Guard
12. Dumping Cylinder
13. Disc Brake
Example

The applicability of the system was evaluated using an existing Honda GX160 engine is provided with rope recoil start which is easy to operate and low on maintenance costs. It also eliminates the electrical and battery components. The engine operates at idle speed of 800 RPM and the maximum RPM is set at 3000 RPM. This engine speed is controlled by the throttle lever on the handle bar.
Based on the above-mentioned results, some of the non-limiting advantages of the present invention are:
. Easily operated without any training/license
. Improve efficiency and productivity in repetitive operations
. The inventions can be customized to mount flat bucket, low wall bucket, extendible bucket, for carrying larger items. By removing the bucket, the machine can be reconfigured to carry water tank, container, etc.
. Another application is with the help of water tank system the machine can be used with spraying system for agricultural and maintenance operations.
. Also optional auto battery start mechanism can also be provided if user requires.
. As there are no mechanical components in the system, this system eliminates all the mechanical drive components like the gear box, clutch, trans axles, axles, gear change system etc.
. There are less components to maintain and service.
. The operational costs are also lower considerably compared to mechanical system.
Although a three wheel drive hydraulic powered wheel barrow device has been described in language specific to structural features, it is to be understood that the embodiments disclosed in the above section are not necessarily limited to the specific

methods or devices described herein. Rather, the specific features are disclosed as examples of implementations of a three wheel drive hydraulic powered wheel barrow device.

WE CLAIM:
1. A Three wheel drive hydraulic powered wheel barrow device comprising:
a handle bar bracket (3) connected to a rear wheel;
a dumping cylinder (12) fixed to a chassis (2) on one side and other end connected to a bucket (1);
a disc brake (13) enabling slowing of momentum gained while moving downhill;
an engine (10) configured with a rope recoil start enabling easy operation;
wherein the handle bar bracket enables steering and easy manoeuvring, connected to antilock stoppers preventing front wheel from locking while locking the real wheel while turning, and;
wherein the dumping cylinders (12) enables dumping of materials when loaded in the bucket (1).
2. The device as claimed in claim1, wherein the dumping cylinder is configured to a control valve.
3. The device as claimed in claim1 further comprising, a throttle lever arrangement connected to the handle bar bracket (3) reducing the engine (10) rpm to idling speed and moving in the intended direction when going downhill.
4. The device as claimed in claim1, wherein the bucket (1) is reconfigurable or expanded by opening the side walls of the bucket (1) for enabling folding or expansion for loading more materials.

5. The device as claimed in claim1, wherein the wheels are provided with mud guards (11) for safety and splashing of mud during operation in wet soil conditions.
6. The device as claimed in claim 1, wherein the engine (10) operates at idle speed of 800 RPM and the maximum RPM may be at 3000 RPM.
7. The device as claimed in claim 1, wherein the engine (10) speed is controlled by a mechanical throttle lever (9) configured on the handle bar bracket (3).
8. The device as claimed in claim 7, wherein the speed of the device varies according to the load applied and the valve regulates the flow control of hydraulic motors.