The invention is directed to a motorized cart and a hub gear motor system in which the electric motor of the system is contained within the hub casing of a front wheel of the motorized cart. The hub gear motor system provides the motorized cart with front wheel drive.
대표청구항▼
The invention claimed is: 1. A motorized cart comprises: a cart body; and a hub gear motor system; said cart body includes a support frame, a steering unit, a plurality of wheels, a seat and a platform; said plurality of wheels is attached to said support frame and includes at least one rear wheel
The invention claimed is: 1. A motorized cart comprises: a cart body; and a hub gear motor system; said cart body includes a support frame, a steering unit, a plurality of wheels, a seat and a platform; said plurality of wheels is attached to said support frame and includes at least one rear wheel and at least one front wheel; a plurality of antitip casters generally aligned with said front wheel, wherein one of said antitip casters is positioned on one side of said front wheel and another of said anti-tip casters is positioned on another side of said front wheel; said front wheel comprises a rim, a tire, a hub casing and two threaded rods, said hub casing is mounted to opposite sides of the rim and said threaded rods define a horizontal rotational axis of the front wheel comprising a first rotational axis; said steering unit comprises a steering column; said hub gear motor system drives the front wheel in forward and rearward directions and includes an electric reversible motor with a rotor and an intermediate plate; said electric reversible motor of the hub gear motor system further comprises first, second, third and fourth gears, wherein said electric reversible motor of the hub gear motor system is contained within said hub casing of the front wheel; the first gear is engaged with the rotor of the electric reversible motor; the first gear further is engaged with the second gear; the second gear is fixedly attached to the third gear; the second and third gears are disposed on opposite sides of the intermediate plate; the intermediate plate is attached to the motor; the second and third gears rotate about a second rotational axis which is offset from the first rotational axis; the fourth gear is fixed to the hub casing and rotates about the first rotational axis; and the hub casing is nonrotatably attached to the rim; wherein said gears translate rotational motion of the electric reversible motor to the at least one front wheel, said first gear is driven by the electric reversible motor, the second gear is driven by said first gear, the third gear rotates with said second gear, said fourth gear is driven by said third gear, said hub casing is rotated by said fourth gear; a 12-volt battery and a battery charger, wherein said battery provides power to the electric reversible motor; a control box, a power width modulator controller and a plurality of leads; wherein said control box is mounted on the steering unit and controls the speed and direction of the electric reversible motor; said power width modulator controller regulates voltage directed to the motor via the throttle; said plurality of leads comprises power leads, control leads and motor leads, wherein said power leads extend between the battery, the battery charger and the power width modulator controller; said control leads extend between said control box and said power width modulator controller; and said motor leads extend between said electric reversible motor and said power width modulator controller. 2. A motorized cart comprises: a cart body; and a hub gear motor system; said cart body includes a support frame, a steering unit, and a plurality of wheels; said plurality of wheels is attached to said support frame and includes at least one rear wheel and at least one front wheel; said front wheel comprises a rim, a tire and a hub casing, wherein said hub casing is mounted to opposite sides of the rim and said front wheel rotates about a first rotational axis; said hub gear motor system drives the front wheel in forward and rearward directions and includes an electric reversible motor with a rotor, an intermediate plate, and first, second, third and fourth gears; wherein said electric reversible motor is contained within said hub casing of the front wheel and the first gear is mounted on the rotor of the electric reversible motor; wherein the first gear is engaged with the second gear and rotates about the first rotational axis, the second gear is fixedly attached to the third gear, the second and third gears are disposed on opposite sides of the intermediate plate, the intermediate plate is attached to the motor, the second and third gears rotate about a second rotational axis which is offset from the first rotational axis, the fourth gear is fixed to the hub casing and rotates about the first rotational axis, and the hub casing is nonrotatably attached to the rim; said hub gear motor system further comprises: a battery; a control box; a power width modulator controller; and a plurality of leads; wherein said battery provides power to the electric reversible motor; said control box controls the speed and direction of the electric reversible motor; and said power width modulator controller regulates voltage directed to the motor; said plurality of leads comprises power leads, control leads and motor leads; wherein said power leads extend between the battery and the power width modulator controller; said control leads extend between said control box and said power width modulator controller; and said motor leads extend between said electric reversible motor and said power width modulator controller; wherein said first, second, third and fourth gears translate rotational motion of the electric reversible motor to the at least one front wheel to move the cart body, said first gear is driven by the electric reversible motor, the second gear is driven by said first gear, the third gear rotates with said second gear, said fourth gear is driven by said third gear, said hub casing is rotated by said fourth gear. 3. The motorized cart of claim 2, wherein said front wheel further includes a pair of threaded rods which are coaxial with the first rotational axis. 4. The motorized cart of claim 2, wherein said hub gear motor system further comprises a battery charger and said power leads extend between the battery, the battery charger and the power width modulator controller. 5. The motorized cart of claim 2, wherein the gear ratio of the means for driving the cart is approximately 21 to 1. 6. The motorized cart of claim 2, wherein the first gear comprises 19 teeth, the second gear comprises 62 teeth, the third gear comprises 11 teeth and the fourth gear comprises 70 teeth. 7. The hub gear motor system of claim 2, wherein said control box includes a throttle for controlling the speed and direction of the electric reversible motor; and said power width modulator controller regulates the voltage applied to the motor in response to the throttle. 8. The motorized cart of claim 3, further comprising at least one antitip caster generally aligned with said front wheel. 9. The motorized cart of claim 4, wherein said battery comprises a 12-volt battery. 10. The motorized cart of claim 5, wherein a diameter of the front wheel is about 8 inches. 11. A hub gear motor system for use on a vehicle wheel having a rim with a hub casing, said hub gear motor system comprises: an electric reversible motor comprising first, second, third, and fourth gears, a rotor and an intermediate plate; wherein said electric reversible motor drives the wheel in forward and rearward directions and is contained within said hub casing of the vehicle wheel; a battery which provides power to the electric reversible motor; a control box which controls the speed and direction of the electric reversible motor; a power width modulator controller which regulates voltage directed to the motor; and a plurality of leads comprising power leads, control leads and motor leads; wherein said power leads extend between the battery and the power width modulator controller; said control leads extend between said control box and said power width modulator controller; and said motor leads extend between said electric reversible motor and said power width modulator controller; said first gear is mounted on the rotor of the electric reversible motor to rotate about a first rotational axis and is engaged with the second gear; said second gear is fixedly attached to the third gear; said second and third gears are disposed on opposite sides of the intermediate plate; said second and third gears rotate about a second rotational axis; said first rotational axis is offset from said second rotational axis; said fourth gear is fixed to the hub casing and rotates about the first rotational axis; and wherein said gears translate rotational motion of the electric reversible motor to the wheel, said first gear is driven by the electric reversible motor, the second gear is driven by said first gear, the third gear rotates with the second gear, said fourth gear is driven by said third gear, and said hub casing rotates with said fourth gear. 12. The hub gear motor system of claim 11, further comprising a battery charger, wherein said power leads extend between the battery, the battery charger and the power width modulator controller. 13. The hub gear motor system of claim 12, wherein said battery comprises a 12-volt battery.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (17)
Schmid Egon,DEX, Drive device with brake incorporated for an electrically operated vehicle.
Strehler Richard (Chieming DEX) Schwibach Wilhelm (Munich DEX), Drive system for an industrial vehicle, in particular for a pedestrian controlled forklift.
Marusik C. Lee (McKinney TX) Johnson Edward (Plano TX), Method and circuitry for controlling start-up characteristics of a magnetic amplifier control circuit.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.