Agricultural applicator configuration for enhanced visibility

• US 7,228,931 B2
• Filed: 07/01/2004
• Issued: 06/12/2007
• Est. Priority Date: 07/01/2004
• Status: Active Grant

• Current Assignee: Blue Leaf IP Incorporated (CNH Industrial N.V.)
• Original Assignee: CNH America Llc (CNH Industrial N.V.)
• Inventors: Ricke, Keith M., Ruppert, Rex L.
• Primary Examiner(s): Dickson; Paul N.
• Assistant Examiner(s): ROCCA, JOSEPH M
• Application Number:
  US10/883,329
• Publication Number:
  US 20060000654A1
• Time in Patent Office: 1,076 Days
• Field of Search: 180/89.12, 180/210, 180/215, 180/432, 180/435, 180/437, 180/439, 280/270, 280/271, 280/276
• US Class Current: 180/215
• CPC Class Codes: B62D 33/0617 for tractors or off-the-road vehicles protective devices for drivers in case of overturning of tractors B60R21/131

Abstract

A configuration of a three-wheeled agricultural applicator is provided that enhances visibility or the field of view of an operator. The three-wheeled agricultural applicator includes a frame assembly having a fork assembly and a kingpin extending generally upward therefrom. The three-wheeled agricultural applicator further includes a steering assembly that includes a steering wheel interlinked by a left steering actuator and a right steering actuator with a steering plate attached at the top of the kingpin. This configuration allows a hood associated with a drive unit of the three-wheeled agricultural applicator to be angled in a downward direction towards the forward direction of travel, thus enhancing the operator'"'"'s field of view.

Claims

1. A three-wheeled vehicle, comprising:

a drive unit interconnected with a plurality of wheel assemblies in such a manner so as to drive the three-wheeled vehicle in a forward direction of travel, the plurality of wheel assemblies including a single front wheel assembly;

a frame assembly mounted on the plurality of wheel assemblies, the frame assembly including a fork assembly having first and second forks depending from opposite ends of a yoke portion and a kingpin extending generally upward from the yoke portion, the fork assembly mounted on the single front wheel assembly; and

a steering assembly including;

a steering wheel;

a steering plate interconnected to the kingpin; and

left and right steering cylinders interlinking the steering wheel with the steering plate;

wherein rotation of the steering wheel toward a turn direction of the three-wheeled vehicle relative to the forward direction of travel rotates the steering plate and attached kingpin and causes the fork assembly to rotate in the turn direction.

2. The three-wheeled vehicle as recited in claim 1, further comprising:

a hood having a rearward end and a forward end relative to the forward direction of travel, wherein the hood is angled in a downward direction from the rearward end towards the forward end of the hood and adjacent to the steering plate.

3. The three-wheeled vehicle as recited in claim 2, wherein the hood includes a plurality of louvers, and wherein in the open position of the hood, the louvers are positioned at an angle with respect to horizontal such that the louvers do not obstruct a forward field of view of an operator seated rearward of the hood relative to the forward direction of travel.

4. The three-wheeled vehicle as recited in claim 1, further comprising:

a cab supported by the frame assembly, the cab including an operator'"'"'s station located inside of an enclosure of at least one transparent panel, the operator'"'"'s station including a seat and a steering console in support of the steering wheel, the operator'"'"'s station configured to allow an operator to maneuver the three-wheeled vehicle; and

a hood mounted forward of the cab, the hood having a rearward end and a forward end relative to the forward direction of travel, the rearward end having a first width and the forward end having a second width, the second width being greater than the first width of the rearward end of the hood,

wherein the steering wheel extends upward from the steering console mounted and located inside the cab, the steering console having a top surface, and wherein the rearward end of the hood is generally aligned with a top surface of the steering console.

5. The three-wheeled vehicle of as recited in claim 4, wherein the steering console has a width that is less than the width of the forward end of the hood.

6. The three-wheeled vehicle as recited in claim 4, wherein the cab includes at least one vertical support having an obstructing dimension to a line of sight of the operator seated at the operator'"'"'s station, and wherein an exhaust outlet associated with the drive unit is located in general alignment with the at least one vertical support such that the exhaust outlet does not additionally obstruct a field of view of the operator seated at the operator'"'"'s station.

7. The three-wheeled vehicle as recited in claim 4, wherein the enclosure includes:

only four vertical supports between a floor support and a ceiling support, the four vertical supports including a first vertical support and a second vertical support located forward of the operator'"'"'s seat, and a third vertical support and a fourth vertical support located rearward of the operator'"'"'s seat; and

only four transparent panels located between the four vertical supports, the four transparent panels including a first transparent panel pivotally hinged to the first vertical support, and a second transparent panel pivotally hinged to the third vertical support.

8. The three-wheeled vehicle as recited in claim 4, wherein the enclosure of the cab includes a ceiling support and a floor support, wherein the forward transparent panel is curvilinear-shaped and extends downward to the floor support of the cab enclosure.

9. The three-wheeled vehicle of as recited in claim 4, wherein the enclosure of the cab includes a plurality of transparent panels configured to provide an operator with a three hundred-sixty degree field of view from the cab.

10. The three-wheeled vehicle as recited in claim 4, wherein the vehicle includes one or more side-mounted walkways, the walkways located relative to the cab such that walkways do not obstruct a field of view of the operator seated at the operator'"'"'s station.

11. A three-wheeled agricultural applicator, comprising:

a plurality of wheel assemblies including a single front wheel assembly;

a frame assembly mounted on the plurality of wheel assemblies, the frame assembly including a fork assembly having first and second forks depending from opposite ends of a yoke portion and a kingpin extending generally upward from the yoke portion, the fork assembly mounted on the single front wheel assembly;

a steering assembly including;

a steering wheel;

a steering plate interconnected to the kingpin; and

left and right steering cylinders interlinking the steering wheel with the steering plate;

a cab supported by the frame assembly, the cab including an operator'"'"'s station located inside of an enclosure of at least one transparent panels, the operator'"'"'s station including a seat and a steering console configured to allow an operator to operate the agricultural applicator; and

a hood mounted forward of the cab relative to the forward direction of travel, the hood having a rearward end and a forward end relative to the forward direction of travel, the rearward end having a first width and the forward end having a second width, the second width being greater than the first width of the rearward end of the hood, wherein the steering wheel extends upward from the steering console mounted and located inside the cab, the steering console having a top surface, and wherein the rearward end of the hood is generally aligned with a top surface of the steering console.

12. The three-wheeled agricultural applicator as recited in claim 11, wherein the cab enclosure includes a ceiling support and a floor support, wherein the at least one transparent panel is curvilinear-shaped and extends downward to the floor support of the cab enclosure.

13. The three-wheeled agricultural applicator as recited in claim 11, wherein the steering console has a width that is less than the width of the forward end of the hood.

14. The three-wheeled agricultural applicator as recited in claim 11, wherein the enclosure includes a plurality of transparent panels configured to provide 360-degree field of view for the operator seated at the operator'"'"'s station.

15. The three-wheeled agricultural applicator as recited in claim 11, wherein the cab includes at least one vertical support having an obstructing dimension to a line of sight of the operator seated at the operator'"'"'s station, and wherein an exhaust outlet associated with the drive unit is located in general alignment with the at least one vertical support such that the exhaust outlet does not obstruct a field of view of the operator seated at the operator'"'"'s station.

16. The three-wheeled agricultural applicator as recited in claim 11, wherein the hood includes a plurality of louvers, the louvers positioned at an angle of about seven degrees with respect to horizontal such that when the hood is in an open position, the louvers do not obstruct a forward field of view of the operator seated at the operator'"'"'s station.

17. The three-wheeled agricultural applicator as recited in claim 11, wherein the three-wheeled agricultural applicator includes one or more side-mounted walkways, the walkways located relative to the cab such that walkways do not obstruct a field of view of the operator seated at the operator'"'"'s station.

18. The three-wheeled agricultural applicator as recited in claim 11, wherein the hood slopes in downward direction from the rearward end towards the forward end of the hood.

19. The three-wheeled agricultural applicator as recited in claim 11, wherein the transparent panels are curvilinear-shaped, and wherein the steering console has a width that is less than the width of the forward end of the hood.

20. The three-wheeled agricultural applicator as recited in claim 11, wherein the enclosure of the cab includes:

only four vertical supports, the four vertical supports including a first vertical support and a second vertical support located forward of the operator'"'"'s seat, and a third vertical support and a fourth vertical support located rearward of the operator'"'"'s seat; and

a plurality of transparent panels including a first transparent panel pivotally hinged to the first vertical support, and a second transparent panel pivotally hinged to the third transparent support.