Title of Invention	"BATTERY OPERATED MOTORIZED WHEEL CHAIR"
Abstract	The Battery Operated Motorized Wheel Chair is result of modification of a manually operating wheel chair to a front wheel drive system with chassis fabricated from steel pipe used for housing the battery, the main drive motor and the reduction gear box connected to the front drive wheel with help of sprockets and roller chain. The movements of the wheel chair is controlled from a control panel which is attached to the right arm rest, which can also be shifted to the left. The turning system is controlled by the same joystick switch through a small turning motor having a circular cam fitted with four limit switches to control the rotation of the said motor to restrict the angular movement of the rear turning wheels.

Title of Invention

"BATTERY OPERATED MOTORIZED WHEEL CHAIR"

Abstract

The Battery Operated Motorized Wheel Chair is result of modification of a manually operating wheel chair to a front wheel drive system with chassis fabricated from steel pipe used for housing the battery, the main drive motor and the reduction gear box connected to the front drive wheel with help of sprockets and roller chain. The movements of the wheel chair is controlled from a control panel which is attached to the right arm rest, which can also be shifted to the left. The turning system is controlled by the same joystick switch through a small turning motor having a circular cam fitted with four limit switches to control the rotation of the said motor to restrict the angular movement of the rear turning wheels.

Full Text	Description: The present invention relates to the electrically operated motorized wheelchair by modifying a manually operating wheelchair to a front wheel drive system with chassis fabricated from steel pipe used for the battery housing the main drive motor, reduction gear box. In our country motorized system sold are imported models and are expensive. Severely disabled of average means can not afford to purchase the same. German, British, American firms were manufacturing a wide variety of joystick controlled electric motor powered wheel chairs excellence; but their very expensive. CERI had demonstrated an electrical wheelchair model operated by voice sensors in additions to joystick. But we do not have any information about availability of the same in markets. This invention of electrically controlled powered wheel chair, operated by a joystick switch, is designed to run on smooth floors and has been fabricated from materials procurable in the country. BACKGROUND OF INVENTION The manifold problems of mobility of severely handicapped following catastrophic trauma, disease or cerebral vascular accidents do not find any suitable mobility system to promote his activity usefulness and respect. Most of them usually become burden to the family and society. To give them an independent mobility system, it became necessary to invent this leas expensive design battery operated motorized wheel chair for helping such persons. SUMMARY OF INVENTION The mechanical system consist of the frame work assembly for housing main drive motor, turning motor, Reduction Gear Box and bigger front drive wheels, small rear wheels for turning system, control panel and a battery. The power system consists of a 12 volt, battery, motor has been connected by a Vee Belt to the Reduction Gear Box through pulleys and from Reduction Gear Box to the main drive wheel with the help of Roller chain and sprocket. This system controls the fro and aft movements of the wheel chair. small motor is used for turning system. Four limit switches controlled by a cam is used to restrict the angle of the turning wheels (Number 9 of Figure 10). A Control Panel is fixed on the right hand rest. (It can be shifted to the left if required). It has a switch which controls the fro and aft and side to side movement of the wheel chair. The mobile system consist of the main drive wheels with pneumatic tyre, tube, steel Rims and Spokes. The wheel are mounted on axle separately on two sides. A drum brake system has been incorporated within the Hub of the drive wheels fixed to a rectangular steel plate, with the help of steel axles, in front part of the frame shown in Figure.2 (No.1). the rear wheels are mounted on left and right sides of the rear portion of the frame. The seating system consists of the seat and back covered by cushions made from high density foam and rexin, capable of supporting a person who works the wheelchair. The hand rests, with cushioned top, are provided on both the sides of the frame. Two separate almminium casted footrest are provided in front of the frame. STATEMENT OF INVENTION A battery operated motorized wheel chair comprising of a frame, a seat, and a back-rest on the said frame, a hand rest, and also a foot rest, and two wheel assemblies, front ones of the two is a drive wheel assembly linked for electric power for propulsion of the said wheel chair; the said electric power is derived from electric battery, which is mounted on a battery carrier fabricated on the chassis between two front wheels, the said electric power is supplied from the above mentioned battery to the main drive motor, the motor is mounted on aforesaid chassis in its right side behind the battery connected to the reduction gear box by means of pulley and V belt; the inlet and outlet shafts are at right angles to each other, a sprocket is mounted on the outlet shaft which is connected to the left drive wheel by means of a roller chain to the other driven sprocket mounted on the left side wheel hub of the wheel chair; the turning motor is mounted on the bracket fixed on the said frame, the said turning motor assembly is fitted between the main drive motor and the said seat, a circular cam is mounted on the shaft of the turning mechanism motor and four-limit switches are mounted on steel plate, the said switches are used to restrict the rotation of the turning mechanism motor shaft for the required angle; the lever connecting the said turning mechanism motor shaft to the fork spindle of the right side rear wheel which, in turn, is connected to the fork spindle of the left side rear wheel with the help of steel connecting levers; ah electrical control component box is fixed on the side of right hand rest having a joy stick switch to control the fro and aft and turning movement of the above mentioned wheel chair in which a knob for speed control, and a lock provided at the rear of the control box; an electrical relay mounted on a steel plate under the seat and also a small electronic cardex is fixed on a separate steel plate; a miniature circuit breaker fitted under the seat on left side of the frame of the wheel chair for safety of the motor while over loading. BRIEF DESCRIPTION OF THE FIGURES: Feature and advantages of the invention will be more clear, Wherein: FIG - 1 Is the front view of the chassis of the Battery Operated Motorized Wheel Chair. FIG -2 Is the side view of the chassis of Battery Operated Motorized Wheel Chair, FIG - 3 Is a side view and plan of a bracket of the wheel chair. FIG - 4 Is the sectional view of the of the wheel Hub of the Motorized Wheel Chair. FIG - 5 Is the front elevation of the Battery Operated Motorized Wheel Chair. FIG - 6 Is the plan and side view of Redicon side sprocket of the dive system. FIG - 7 Is the sectional view of the shock absorber of the rear wheels. FIG - 8 Is the plan and side view of the wheel side sprocket; and. FIG - 9 Is the Block Diagram of the Electrical Control System of Battery Operated Motorized Wheel Chair. FIG-10 Is the chassis Assembly Plan 1, showing the locations of Battery 2, Main Drive Motor 3, Motor Pulley 4, Redicon 5, Redicon Pulley 6, Vee Belt 7, Relays 8, Turning Motor. DETAILED DESCRIPTION OF FIGURES : More detailed description of the figures of battery operated Motorized Wheelchair. Figure No. 1 shows the chassis and the space created for mounting the battery, main drive motor and Redicon shown in Figure 10 (5) and (3), Figure No. 2 shows the side view of the chassis with two thick plates Figure 2 (No.1) welded in front portion of the frame, one each both sides to hold the main drive wheels. Figure No. 3 shows the plan and the side view of a bracket which is fixed on the chassis (Figure 1) on left side and similar bracket is fixed on the right side to support a steel rod which has an upright lever for operating the drum brake. Figure No. 4 shows the plan and cross section of side view of the hub of main drive wheel, which is also used as brake drum, accommodating the brake shoe. Figure No. 5 shows the front view of the battery operated motorized wheel chair, showing the locations of battery 2, main drive motor 3, reduction gear box 4, hub (brake drum) 5, main drive wheel 6, back rest cushions 7, and seat cushions 8. Figure 6 shows the plan and side elevations of reduction gear box side sprocket which is mounted on the outlet shaft of reclicon. Figure No. 7 shows the cross section of the shock absorber (two shock absorbers are welded at the rear side of the wheel chair for mounting the rear wheels. Figure No. 8 shows the block diagram of electrical control of the battery operated motorized wheel chair. Figure No. 9 shows the block diagram of electrical control circuits indicating the battery, miniature circuit breaker, key lock switch, joystick switch, main drive motor, control circuit, main drive motor, fuse for turning motor, auto centering circuit for rear wheels, control circuit for charging direction of current flow in turning motor, limit switches to stop rotation of motor at maximum turning angle and turning motor. Figure No. 10 shows the top view (the plan) of the assembly of battery operated motorized wheel chair, indicating the chassis frame 1 which accommodates the total assembly, the battery 2 which is the main source of power, the main drive motor transmitting the power, with the help of Vee Pulley 4, to the reduction gear box 5, through an other Vee Pulley 6 and a Vee belt 7, two releys 8 are used to control circuits for changing directions of current flow in turning motor, turning motor 9 with a cam and four limit switches mounted on its shaft for controlling the turning angle of wheels of wheel chair. 5. I Claim: A battery operated motorized wheel chair comprising of a frame, a seat, and a back-rest on the said frame, a hand rest, and also a foot rest, and two wheel assemblies, front ones of the two is a drive wheel assembly linked for electric power for propulsion of the said wheel chair; the said electric power is derived from electric battery, which is mounted on a battery carrier fabricated on the chassis between two front wheels, the said electric power is supplied from the above mentioned battery to the main drive motor, the motor is mounted on aforesaid chassis in its right side behind the battery connected to the reduction gear box by means of pulley and V belt; the inlet and outlet shafts are at right angles to each other, a sprocket is mounted on the outlet shaft which is connected to the left drive wheel by means of a roller chain to the other driven sprocket mounted on the left side wheel hub of the wheel chair; the turning motor is mounted on the bracket fixed on the said frame, the said turning motor assembly is fitted between the main drive motor and the said seat, a circular cam is mounted on the shaft of the turning mechanism motor and four-limit switches are mounted on steel plate, the said switches are used to restrict the rotation of the turning mechanism motor shaft for the required angle; the lever connecting the said turning mechanism motor shaft to the fork spindle of the right side rear wheel which, in turn, is connected to the fork spindle of the left side rear wheel with the help of steel connecting levers; an electrical control component box is fixed on the side of right hand rest having a joy stick switch to control the fro and aft and turning movement of the above mentioned wheel chair in which a knob for speed control, and a lock provided at the rear of the control box; an electrical relay mounted on a steel plate under the seat and also a small electronic cardex is fixed on a separate steel plate; a miniature circuit breaker fitted under the seat on left side of the frame of the wheel chair for safety of the motor while over loading. 2. A battery operated motorized wheel chair as herein described and with reference to given figures.

Full Text

Description:
The present invention relates to the electrically operated motorized wheelchair by modifying a manually operating wheelchair to a front wheel drive system with chassis fabricated from steel pipe used for the battery housing the main drive motor, reduction gear box.
In our country motorized system sold are imported models and are expensive. Severely disabled of average means can not afford to purchase the same. German, British, American firms were manufacturing a wide variety of joystick controlled electric motor powered wheel chairs excellence; but their very expensive. CERI had demonstrated an electrical wheelchair model operated by voice sensors in additions to joystick. But we do not have any information about availability of the same in markets. This invention of electrically controlled powered wheel chair, operated by a joystick switch, is designed to run on smooth floors and has been fabricated from materials procurable in the country.
BACKGROUND OF INVENTION
The manifold problems of mobility of severely handicapped following catastrophic trauma, disease or cerebral vascular accidents do not find any suitable mobility system to promote his activity usefulness and respect. Most of them usually become burden to the family and society. To give them an independent mobility system, it became necessary to invent this leas expensive design battery operated motorized wheel chair for helping such persons.
SUMMARY OF INVENTION
The mechanical system consist of the frame work assembly for housing main drive motor, turning motor, Reduction Gear Box and bigger front drive wheels, small rear wheels for turning system, control panel and a battery.
The power system consists of a 12 volt, battery, motor has been connected by a Vee Belt to the Reduction Gear Box through pulleys and from Reduction Gear Box to the main drive wheel with the help of Roller chain and sprocket. This system controls the fro and aft movements of the wheel chair.

small motor is used for turning system. Four limit switches controlled by a cam is used to restrict the angle of the turning wheels (Number 9 of Figure 10).
A Control Panel is fixed on the right hand rest. (It can be shifted to the left if required). It has a switch which controls the fro and aft and side to side movement of the wheel chair.
The mobile system consist of the main drive wheels with pneumatic tyre, tube, steel Rims and Spokes. The wheel are mounted on axle separately on two sides. A drum brake system has been incorporated within the Hub of the drive wheels fixed to a rectangular steel plate, with the help of steel axles, in front part of the frame shown in Figure.2 (No.1). the rear wheels are mounted on left and right sides of the rear portion of the frame.
The seating system consists of the seat and back covered by cushions made from high density foam and rexin, capable of supporting a person who works the wheelchair. The hand rests, with cushioned top, are provided on both the sides of the frame. Two separate almminium casted footrest are provided in front of the frame.
STATEMENT OF INVENTION
A battery operated motorized wheel chair comprising of a frame, a seat, and a back-rest on the said frame, a hand rest, and also a foot rest, and two wheel assemblies, front ones of the two is a drive wheel assembly linked for electric power for propulsion of the said wheel chair;
the said electric power is derived from electric battery, which is mounted on a battery carrier fabricated on the chassis between two front wheels,
the said electric power is supplied from the above mentioned battery to the main drive motor, the motor is mounted on aforesaid chassis in its right side behind the battery connected to the reduction gear box by means of pulley and V belt;
the inlet and outlet shafts are at right angles to each other, a sprocket is mounted on the outlet shaft which is connected to the left drive wheel by means of a roller chain to the other driven sprocket mounted on the left side wheel hub of the wheel chair;
the turning motor is mounted on the bracket fixed on the said frame, the said turning motor assembly is fitted between the main drive motor and the said seat, a circular cam is mounted on the shaft of the turning mechanism motor and four-limit switches are mounted on steel plate, the said switches are used to restrict the rotation of the turning mechanism motor shaft for the required angle;

the lever connecting the said turning mechanism motor shaft to the fork spindle of the right side rear wheel which, in turn, is connected to the fork spindle of the left side rear wheel with the help of steel connecting levers;
ah electrical control component box is fixed on the side of right hand rest having a joy stick switch to control the fro and aft and turning movement of the above mentioned wheel chair in which a knob for speed control, and a lock provided at the rear of the control box;
an electrical relay mounted on a steel plate under the seat and also a small electronic cardex is fixed on a separate steel plate;
a miniature circuit breaker fitted under the seat on left side of the frame of the wheel chair for safety of the motor while over loading.
BRIEF DESCRIPTION OF THE FIGURES:
Feature and advantages of the invention will be more clear, Wherein:
FIG - 1 Is the front view of the chassis of the Battery Operated Motorized Wheel Chair.
FIG -2 Is the side view of the chassis of Battery Operated Motorized Wheel Chair,
FIG - 3 Is a side view and plan of a bracket of the wheel chair.
FIG - 4 Is the sectional view of the of the wheel Hub of the Motorized Wheel Chair.
FIG - 5 Is the front elevation of the Battery Operated Motorized Wheel Chair.
FIG - 6 Is the plan and side view of Redicon side sprocket of the dive system.
FIG - 7 Is the sectional view of the shock absorber of the rear wheels.
FIG - 8 Is the plan and side view of the wheel side sprocket; and.
FIG - 9 Is the Block Diagram of the Electrical Control System of Battery Operated Motorized Wheel Chair.
FIG-10 Is the chassis Assembly Plan 1, showing the locations of Battery 2, Main Drive Motor 3, Motor Pulley 4, Redicon 5, Redicon Pulley 6, Vee Belt 7, Relays 8, Turning Motor.

DETAILED DESCRIPTION OF FIGURES :
More detailed description of the figures of battery operated Motorized Wheelchair.
Figure No. 1 shows the chassis and the space created for mounting the battery, main drive motor and Redicon shown in Figure 10 (5) and (3), Figure No. 2 shows the side view of the chassis with two thick plates Figure 2 (No.1) welded in front portion of the frame, one each both sides to hold the main drive wheels. Figure No. 3 shows the plan and the side view of a bracket which is fixed on the chassis (Figure 1) on left side and similar bracket is fixed on the right side to support a steel rod which has an upright lever for operating the drum brake. Figure No. 4 shows the plan and cross section of side view of the hub of main drive wheel, which is also used as brake drum, accommodating the brake shoe. Figure No. 5 shows the front view of the battery operated motorized wheel chair, showing the locations of battery 2, main drive motor 3, reduction gear box 4, hub (brake drum) 5, main drive wheel 6, back rest cushions 7, and seat cushions 8. Figure 6 shows the plan and side elevations of reduction gear box side sprocket which is mounted on the outlet shaft of reclicon. Figure No. 7 shows the cross section of the shock absorber (two shock absorbers are welded at the rear side of the wheel chair for mounting the rear wheels. Figure No. 8 shows the block diagram of electrical control of the battery operated motorized wheel chair. Figure No. 9 shows the block diagram of electrical control circuits indicating the battery, miniature circuit breaker, key lock switch, joystick switch, main drive motor, control circuit, main drive motor, fuse for turning motor, auto centering circuit for rear wheels, control circuit for charging direction of current flow in turning motor, limit switches to stop rotation of motor at maximum turning angle and turning motor. Figure No. 10 shows the top view (the plan) of the assembly of battery operated motorized wheel chair, indicating the chassis frame 1 which accommodates the total assembly, the battery 2 which is the main source of power, the main drive motor transmitting the power, with the help of Vee Pulley 4, to the reduction gear box 5, through an other Vee Pulley 6 and a Vee belt 7, two releys 8 are used to control circuits for changing directions of current flow in turning motor, turning motor 9 with a cam and four limit switches mounted on its shaft for controlling the turning angle of wheels of wheel chair.

5. I Claim:
A battery operated motorized wheel chair comprising of a frame, a seat, and a back-rest on the said frame, a hand rest, and also a foot rest, and two wheel assemblies, front ones of the two is a drive wheel assembly linked for electric power for propulsion of the said wheel chair;
the said electric power is derived from electric battery, which is mounted on a battery carrier fabricated on the chassis between two front wheels,
the said electric power is supplied from the above mentioned battery to the main drive motor, the motor is mounted on aforesaid chassis in its right side behind the battery connected to the reduction gear box by means of pulley and V belt;
the inlet and outlet shafts are at right angles to each other, a sprocket is mounted on the outlet shaft which is connected to the left drive wheel by means of a roller chain to the other driven sprocket mounted on the left side wheel hub of the wheel chair;
the turning motor is mounted on the bracket fixed on the said frame, the said turning motor assembly is fitted between the main drive motor and the said seat, a circular cam is mounted on the shaft of the turning mechanism motor and four-limit switches are mounted on steel plate, the said switches are used to restrict the rotation of the turning mechanism motor shaft for the required angle;
the lever connecting the said turning mechanism motor shaft to the fork spindle of the right side rear wheel which, in turn, is connected to the fork spindle of the left side rear wheel with the help of steel connecting levers;
an electrical control component box is fixed on the side of right hand rest having a joy stick switch to control the fro and aft and turning movement of the above mentioned wheel chair in which a knob for speed control, and a lock provided at the rear of the control box;
an electrical relay mounted on a steel plate under the seat and also a small electronic cardex is fixed on a separate steel plate;
a miniature circuit breaker fitted under the seat on left side of the frame of the wheel chair for safety of the motor while over loading.
2. A battery operated motorized wheel chair as herein described and with
reference to given figures.

Documents:

550-del-2001-abstract.pdf

550-del-2001-claims.pdf

550-del-2001-correspondence-others.pdf

550-del-2001-correspondence-po.pdf

550-del-2001-description (complete).pdf

550-del-2001-drawings.pdf

550-del-2001-form-1.pdf

550-del-2001-form-19.pdf

550-del-2001-form-2.pdf

550-del-2001-form-3.pdf

550-del-2001-form-4.pdf

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Patent Number

231046

Indian Patent Application Number

550/DEL/2001

PG Journal Number

13/2009

Publication Date

27-Mar-2009

Grant Date

28-Feb-2009

Date of Filing

04-May-2001

Name of Patentee

DR. BANERJI, JYOTI BHUSHAN

Applicant Address

SECRETORY VIKLANG KENDRA RURAL RESEARCH SOCIETY, 13 LUKERGANJ , ALLAHABAD, U.P. INDIA PIN-211 001

Inventors:

#	Inventor's Name	Inventor's Address
1	DR. BANERJI JYOTI BHUSHAN	SECRETORY VIKLANG KENDRA RURAL RESEARCH SOCIETY, 13 LUKERGANJ , ALLAHABAD, U.P. INDIA PIN-211 001

PCT International Classification Number

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA