Powered personal mobility vehicle with rotating wheels

Patent metadata

Field	Value
Publication number	US-10370053-B2
Application number	US-201715605176-A
Country	US
Kind code	B2
Filing date	May 25, 2017
Priority date	Mar 27, 2012
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

An electric powered personal mobility vehicle that includes at least one front wheel and an electric motor that provides rotational force to a wheel of the vehicle. The electric motor is supported by the vehicle and is powered by a rechargeable battery that is also supported by the vehicle. The vehicle can also include swivel caster wheels each configured to rotate about a wheel axis.

First claim

What is claimed is:

1. A personal mobility vehicle comprising:
a frame with a central vertical plane extending vertically through a longitudinal axis of the personal mobility vehicle, the frame comprising:
a front portion extending along the vertical plane; and
a rear portion coupled to the front portion, the rear portion comprising a first leg and a second leg, the first leg and the second leg extending laterally outward from the vertical plane;

a seat connected with the frame, wherein the seat is adjacent to an intersection of the first and second legs;
a front wheel rotatable about an inclined steering axis;
a first rear wheel connected with the first leg and a second rear wheel connected with the second leg, each of the rear wheels configured to rotate about a rotational axis and swivel about a swivel axis;
a front fork connected with the frame and rotatable about the inclined steering axis, the front fork supporting the front wheel, and the front fork comprising a first inclined support on a first lateral side of the front wheel and a second inclined support on a second lateral side of the front wheel, wherein each of the supports comprises an upper end that curves laterally outward to form a handgrip, wherein the handgrips are configured to provide steering of the front wheel;
a power source; and
an electric motor operably connected with the power source, the electric motor being operably connected with the front wheel to provide rotational force to the front wheel.

2. The personal mobility vehicle of claim 1 , further comprising footrest portions connected with the front fork.

3. The personal mobility vehicle of claim 2 , wherein the footrest portions extend, in directions transverse to the vertical plane, beyond a width of the front fork.

4. The personal mobility vehicle of claim 1 , wherein the electric motor is positioned laterally between the first and second inclined supports.

5. The personal mobility vehicle of claim 1 , wherein each of the rear wheels is configured to freely rotate 360 degrees about its swivel axis.

6. The personal mobility vehicle of claim 1 , wherein each of the rear wheels includes a biasing mechanism configured to limit the degree of rotation of each rear wheel, and to bias each rear wheel toward a neutral steering position.

7. The personal mobility vehicle of claim 1 , wherein the front wheel includes a sprocket and the electric motor transfers power to the front wheel through an endless drive loop.

8. The personal mobility vehicle of claim 1 , further comprising a braking mechanism configured to apply braking force to at least one wheel of the personal mobility vehicle while simultaneously reducing power from the motor to the front wheel.

9. The personal mobility vehicle of claim 1 , wherein the electric motor is fixedly attached to the front fork.

10. The personal mobility vehicle of claim 1 , wherein the power source is positioned behind the seat.

11. The personal mobility vehicle of claim 1 , wherein the rear portion connects with the front portion at a substantially right angle.

12. A personal mobility vehicle comprising:
a frame with a central vertical plane extending vertically through a longitudinal axis of the personal mobility vehicle, the frame comprising:
a front portion extending along the vertical plane; and
a rear portion coupled to the front portion, the rear portion comprising a first leg and a second leg, the first leg and the second leg extending laterally outward from the vertical plane;

a seat connected with the frame;
a front wheel rotatable about an inclined steering axis;
a first rear wheel connected with the first leg and a second rear wheel connected with the second leg, each of the rear wheels configured to rotate about a rotational axis and swivel about a swivel axis;
a front fork connected with the frame and rotatable about the inclined steering axis, the front fork supporting the front wheel, and the front fork comprising a first inclined support on a first lateral side of the front wheel and a second inclined support on a second lateral side of the front wheel;
a handlebar connected with the front fork and configured to provide steering of the front wheel, wherein at least a portion of each of the rear wheels is positioned laterally inside a footprint of the handlebar when the vehicle is traveling in a straight line;
a power source; and
an electric motor operably connected with the power source, the electric motor being operably connected with the front wheel to provide rotational force to the front wheel, and the electric motor being positioned laterally between the first and second inclined supports.

13. The personal mobility vehicle of claim 12 , further comprising footrest portions connected with the front fork.

14. The personal mobility vehicle of claim 13 , wherein the footrest portions extend, in directions transverse to the vertical plane, beyond a width of the front fork.

15. The personal mobility vehicle of claim 12 , wherein each of the rear wheels is configured to freely rotate 360 degrees about its swivel axis.

16. The personal mobility vehicle of claim 12 , wherein each of the rear wheels includes a biasing mechanism configured to limit the degree of rotation of each rear wheel, and to bias each rear wheel toward a neutral steering position.

17. The personal mobility vehicle of claim 12 , wherein the front wheel includes a sprocket and the electric motor transfers power to the front wheel through an endless drive loop.

18. The personal mobility vehicle of claim 12 , further comprising a braking mechanism configured to apply braking force to at least one wheel of the personal mobility vehicle while simultaneously reducing power from the motor to the front wheel.

19. The personal mobility vehicle of claim 12 , wherein the electric motor is fixedly attached to the front fork.

20. The personal mobility vehicle of claim 12 , wherein the power source is positioned behind the seat.

21. The personal mobility vehicle of claim 12 , wherein the seat comprises a generally horizontal portion.

Assignees

• Razor Usa Llc

Inventors

• Chen Robert
• Hadley Robert
• Griggs William

Classifications

• B62K5/027

  Motorcycles with three wheels (specially adapted for disabled riders B62K5/023) · CPC title

• B60L50/66

  Arrangements of batteries · CPC title

• B62K23/04

  Twist grips · CPC title

• B62L3/02

  for control by a hand lever (hand levers for control of cycles in general B62K23/06) · CPC title

• B62K5/025 Primary

  power-driven · CPC title