Three wheeled vehicle

• US 9,004,214 B2
• Filed: 03/21/2012
• Issued: 04/14/2015
• Est. Priority Date: 03/21/2011
• Status: Active Grant

• Current Assignee: Polaris Industries Incorporated (Polaris Inc.)
• Original Assignee: Polaris Industries Incorporated (Polaris Inc.)
• Inventors: Holroyd, James A. J., Aramayo, Gustavo A., Utter, Brian T., Hohenstein, Jason J., Gass, Donald Brett
• Primary Examiner(s): Dickson, Paul N
• Assistant Examiner(s): Condra, Darlene P
• Application Number:
  US13/425,949
• Publication Number:
  US 20120241237A1
• Time in Patent Office: 1,119 Days
• Field of Search: 180/210, 180/211, 180/215, 180/217, 180/311, 180/312, 180/291, 180/908, 280/62, 280/781, 280/788, 280/124.1
• US Class Current: 180/210
• CPC Class Codes: B60G 2200/326 with two laterally spaced pivots, e.g. trailing frame
• CPC Class Codes: B60G 2204/143 on the vehicle body or chassis
• CPC Class Codes: B60G 7/02 Attaching arms to sprung part of vehicle B60G7/006 takes precedence
• CPC Class Codes: B60K 17/04 characterised by arrangement, location, or kind of gearing electric equipment or propulsion of electrically-propelled vehicles B60L
• CPC Class Codes: B60K 17/043 Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
• CPC Class Codes: B60K 5/02 with the engine main axis, e.g. crankshaft axis, substantially in or parallel to the longitudinal centre line of the vehicle
• CPC Class Codes: B62D 21/18 characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
• CPC Class Codes: B62D 23/005 with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like B62D33/044 takes precedence
• CPC Class Codes: B62D 61/065 with single rear wheel
• CPC Class Codes: B62J 1/00 Saddles or other seats for cycles; Arrangement thereof; Component parts
• CPC Class Codes: B62J 17/10 Ventilation or air guiding devices forming part of fairings
• CPC Class Codes: B62K 2003/125 Tandems with side-by-side seating
• CPC Class Codes: B62K 2201/08 Fluid springs
• CPC Class Codes: B62K 25/04 for mounting axles resiliently on cycle frame or fork for sidecars, forecars or the like B62K27/06
• CPC Class Codes: B62K 25/283 for cycles without a pedal crank, e.g. motorcycles
• CPC Class Codes: B62K 5/05 characterised by a single rear wheel
• CPC Class Codes: B62K 5/06 Frames for tricycles
• CPC Class Codes: B62K 5/08 with steering devices acting on two or more wheels
• CPC Class Codes: B62K 7/02 Frames

Abstract

A three wheeled vehicle is disclosed having a vehicle frame with a frame sidewall providing a substantially flat surface, with recesses in the flat surface. Alignment arms have inner ends and outer ends, where the inner ends are mounted to the frame sidewall, and the outer ends mount a wheel hub. The inner ends have couplings with pivotal portions and fixed portions, the pivotal portions being at least partially positioned within the recesses, and the fixed portions being attached to the substantially flat surface.

Claims

1. A vehicle, comprising:

vehicle frame comprising a frame sidewall providing a substantially flat surface, the surface having at least one pair of recesses therein;

at least one alignment arm having inner ends for mounting to the frame sidewall and outer ends, the inner ends having couplings comprised of pivotal portions and fixed portions, the pivotal portions being at least partially positioned within the recesses, and the fixed portions being attached to the substantially flat surface.

2. The vehicle of claim 1, wherein the frame sidewall is defined by a unitary steel plate.

3. The vehicle of claim 1, wherein the frame sidewall is defined by a plurality of steel plates positioned in a common plane.

4. The vehicle of claim 1, wherein the vehicle frame is defined by two frame sidewalls in a substantially V-configuration.

5. The vehicle of claim 4, further comprising at least one alignment arm extending from each frame sidewall.

6. The vehicle of claim 5, wherein the frame sidewalls are each defined by a steel plate, and the recesses are defined by apertures cut through the steel plates.

7. The vehicle of claim 5, wherein the front suspension is defined by two alignment arms extending from each frame sidewall.

8. The vehicle of claim 7, further comprising an engine positioned intermediate, and coupled, to the frame sidewalls.

9. The vehicle of claim 8, further comprising engine mounts coupled to the frame sidewalls, and the engine is coupled to the engine mounts.

10. The vehicle of claim 9, wherein the vehicle is defined as a three wheeled vehicle with two front wheels and a single rear wheel.

11. The vehicle of claim 10, wherein the vehicle further comprises a mid frame portion rearward of the engine having side by side seats for a driver and passenger.

12. The vehicle of claim 11, further comprising a rear suspension comprised of a rear swing arm, extending from the mid frame portion with the single rear wheel coupled to the swing arm.

13. A vehicle, comprising:

a vehicle frame extending along a longitudinal axis of the vehicle and comprising a front frame portion and a mid frame portion, the front frame portion comprising upstanding frame supports, the upstanding frame supports having an inner surface and an outer surface directly opposite the inner surface, the inner surface of the upstanding frame supports defining an inner engine receiving area intermediate the upstanding frame supports and engine mounts coupled to the inner surface of the upstanding frame supports within the engine receiving area, and suspension mounts coupled to the outer surface of the upstanding frame supports, wherein the upstanding frame supports have a thickness between the inner and outer surfaces, and a distance between the engine mounts and the suspension mounts is equal to the thickness of the upstanding frame support;

an engine positioned within the engine receiving area and mounted to the engine mounts;

a front suspension coupled to the suspension mounts and supported by the frame;

front wheels coupled to the front suspension;

side by side seats mounted on the mid frame portion, rearward of the engine; and

at least one rear wheel.

14. The vehicle of claim 13, wherein the front frame portion is defined by two frame sidewalls in a truncated V-configuration.

15. The vehicle of claim 14, wherein the frame sidewalls are defined by unitary steel plates.

16. The vehicle of claim 14, wherein the frame sidewalls are defined by a first plurality of steel plates positioned in a common plane and defining a first side of the truncated V-configuration, and a second plurality of steel plates positioned in a common plane and defining a second side of the truncated V-configuration.

17. The vehicle of claim 14, wherein the front suspension is comprised of at least one alignment arm having inner ends for mounting to each of the frame sidewalls and outer ends for mounting the front wheels.

18. The vehicle of claim 17, wherein each of the frame sidewalls provides a substantially flat surface, the surface having at least one pair of recesses therein.

19. The vehicle of claim 18, wherein, the inner ends having couplings comprised of pivotal portions and fixed portions, the pivotal portions being at least partially positioned within the recesses, and the fixed portions being attached to the substantially flat surface.

20. The vehicle of claim 19, wherein the recesses are defined by apertures cut through the frame sidewalls.

21. The vehicle of claim 13, wherein the vehicle is defined as a three wheeled vehicle with two front wheels and a single rear wheel.

22. The vehicle of claim 13, further comprising a rear suspension comprised of a rear swing arm, extending from the mid frame portion with the single rear wheel coupled to the swing arm.

23. The vehicle of claim 13, wherein the at least one rear wheel is a single rear wheel having an axis of rotation, a longitudinal distance between an axis of rotation of the front wheels and the axis of rotation of the single rear wheel defines a wheel base length, and wherein the vehicle center of gravity is within a range of between 30-40% of the wheel base length rearward of the axis of rotation of the front wheels.

24. The vehicle of claim 13, wherein the front suspension includes at least one shock absorber, and a plane intersecting the longitudinal axis and extending perpendicular to the longitudinal axis intersects the at least one shock absorber and a forward-most end of the engine.

25. The vehicle of claim 13, wherein a plane intersecting the longitudinal axis and extending perpendicular to the longitudinal axis intersects the engine mounts and the suspension mounts.

26. A three wheeled vehicle, comprising:

a vehicle frame;

an engine mounted to the frame adjacent a front end of the frame;

front wheels having an axis of rotation;

side by side seats mounted supported by the frame, rearward of the engine;

a fuel tank supported by the frame and positioned rearward of the side by side seats; and

a single rear wheel having an axis of rotation and coupled to the frame rearward of the side by side seats, and drivingly coupled to the engine;

wherein a longitudinal distance between the axis of rotation of the front wheels and the single rear wheel defines a wheel base length, and wherein the vehicle center of gravity is within a range of between 30-40% of the wheel base length rearward of the axis of rotation of the front wheels.