Outrigger assembly for a fire apparatus

• US 9,580,962 B2
• Filed: 11/24/2014
• Issued: 02/28/2017
• Est. Priority Date: 11/24/2014
• Status: Active Grant

• Current Assignee: Oshkosh Corporation
• Original Assignee: Oshkosh Corporation
• Inventors: Betz, Eric, Archer, David W.
• Primary Examiner(s): Knutson, Jacob
• Application Number:
  US14/552,293
• Publication Number:
  US 20160145941A1
• Time in Patent Office: 827 Days
• Field of Search: 280/4, 280/763.1, 280/765.1, 280/766.1, 180/54.1, 180/68.2, 182/18, 182/19, 254/423, 254/421
• US Class Current: 1/1
• CPC Class Codes: A62C 27/00 Fire-fighting land vehicles
• CPC Class Codes: E06C 5/04 capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
• CPC Class Codes: E06C 5/38 Devices for blocking the springs of the vehicle; Devices for supporting the undercarriage directly from the ground

Abstract

A quint configuration fire apparatus includes a chassis, a body assembly coupled to the chassis and configured to receive a ground ladder, a fire hose, a pump, and a water tank, a ladder assembly including a plurality of extensible ladder sections, the ladder assembly having a proximal end that is coupled to the chassis, a single front axle coupled to a front end of the chassis, a single rear axle coupled to a rear end of the chassis, a single set of outriggers coupled to the chassis and positioned forward of the single rear axle, and a stability foot coupled to the chassis and positioned rearward of the single rear axle. The ladder assembly is extensible to provide a horizontal reach of at least 100 feet.

Claims

1. A quint configuration fire apparatus, comprising:

a chassis including a pair of frame rails;

a body assembly coupled to the chassis and configured to receive a ground ladder, a fire hose, a pump, and a water tank;

a ladder assembly including a plurality of extensible ladder sections, the ladder assembly having a proximal end that is coupled to the chassis;

a single front axle coupled to a front end of the chassis;

a single rear axle coupled to a rear end of the chassis;

a single set of outriggers coupled to the chassis and positioned forward of the single rear axle;

a stability foot coupled to the chassis and positioned rearward of the single rear axle, wherein the stability foot is disposed along a longitudinal centerline of the chassis and between the pair of frame rails, wherein the ladder assembly is extensible to provide a horizontal reach of at least 100 feet; and

a pedestal coupling the ladder assembly to the chassis and defining an axis about which the ladder assembly is configured to rotate, wherein the stability foot is disposed at a rearward end of the pedestal.

2. The fire apparatus of claim 1, further comprising a turntable rotatably coupling the proximal end of the ladder assembly to the pedestal such that the ladder assembly is selectively repositionable into a plurality of operating orientations, the plurality of operating orientations including:

a forward position, an opposing rearward position, and a sideward position.

3. The fire apparatus of claim 2, wherein the stability foot is positioned rearward of the single set of outriggers thereby increasing stability when the ladder assembly is oriented in the opposing rearward position.

4. The fire apparatus of claim 3, wherein the plurality of extensible ladder sections includes a first ladder section, a second ladder section, a third ladder section, and a fourth ladder section, wherein a distal end of the ladder assembly is extensible to the horizontal reach of at least 100 feet when the ladder assembly is oriented in any of the plurality of operating orientations.

5. The fire apparatus of claim 1, wherein the single set of outriggers are positioned adjacent the single rear axle.

6. The fire apparatus of claim 5, wherein the single set of outriggers includes a first frame member and a second frame member slidably coupled to a housing, wherein the first frame member and the second frame member are moveable between a fully extended position and a retracted position, and wherein the first frame member and the second frame member protrude from opposing lateral sides of the chassis when in the fully extended position.

7. The fire apparatus of claim 6, wherein the single set of outriggers includes:

a first actuator positioned to extend a first contact pad downward into contact with a ground surface; and

a second actuator positioned to extend a second contact pad downward into contact with the ground surface, wherein the single set of outriggers defines a first load path and a second load path from the ladder assembly into the ground surface.

8. The fire apparatus of claim 7, wherein the stability foot includes a third actuator positioned to extend a third contact pad downward into contact with the ground surface, wherein the stability foot defines a third load path from the ladder assembly into the ground surface.

9. The fire apparatus of claim 7, wherein the first contact pad and the second contact pad are spaced a distance of no more than 18 feet when the single set of outriggers are in the fully extended position.

10. The fire apparatus of claim 1, wherein the single rear axle has a gross axle weight rating of no more than 33,500 pounds.

11. The fire apparatus of claim 1, wherein the single rear axle comprises a solid axle configuration extending laterally across the chassis.

12. A quint configuration fire apparatus, comprising:

a chassis;

a body assembly coupled to the chassis and configured to receive a ground ladder, a fire hose, a pump, and a water tank;

a ladder assembly including a plurality of extensible ladder sections, the ladder assembly having a proximal end that is coupled to the chassis;

a single front axle coupled to a front end of the chassis;

a single rear axle coupled to a rear end of the chassis;

a single set of outriggers coupled to the chassis and positioned forward of the single rear axle;

a stability foot coupled to the chassis and positioned rearward of the single rear axle, wherein the stability foot is disposed along a longitudinal centerline of the chassis, wherein the ladder assembly is extensible to provide a horizontal reach of at least 100 feet; and

a pedestal coupling the ladder assembly to the chassis and defining an axis about which the ladder assembly is configured to rotate, wherein the stability foot is disposed at a rearward end of the pedestal.

13. The fire apparatus of claim 12, wherein the chassis includes a pair of frame rails, and wherein the stability foot is disposed between the pair of frame rails.

14. The fire apparatus of claim 13, further comprising a turntable rotatably coupling the proximal end of the ladder assembly to the pedestal such that the ladder assembly is selectively repositionable into a plurality of operating orientations, the plurality of operating orientations including:

a forward position, an opposing rearward position, and a sideward position.

15. The fire apparatus of claim 14, wherein:

the stability foot is positioned rearward of the single set of outriggers thereby increasing stability when the ladder assembly is oriented in the opposing rearward position; and

the plurality of extensible ladder sections includes a first ladder section, a second ladder section, a third ladder section, and a fourth ladder section, wherein a distal end of the ladder assembly is extensible to the horizontal reach of at least 100 feet when the ladder assembly is oriented in any of the plurality of operating orientations.

16. The fire apparatus of claim 13, wherein the single set of outriggers are positioned adjacent the single rear axle.

17. The fire apparatus of claim 16, wherein the single set of outriggers includes:

a first frame member and a second frame member slidably coupled to a housing, wherein;

the first frame member and the second frame member are moveable between a fully extended position and a retracted position; and

the first frame member and the second frame member protrude from opposing lateral sides of the chassis when in the fully extended position,

a first actuator positioned to extend a first contact pad downward into contact with a ground surface; and

a second actuator positioned to extend a second contact pad downward into contact with the ground surface;

wherein the single set of outriggers defines a first load path and a second load path from the ladder assembly into the ground surface.

18. The fire apparatus of claim 17, wherein the stability foot includes a third actuator positioned to extend a third contact pad downward into contact with the ground surface, wherein the stability foot defines a third load path from the ladder assembly into the ground surface.

19. The fire apparatus of claim 17, wherein the first contact pad and the second contact pad are spaced a distance of no more than 18 feet when the single set of outriggers are in the fully extended position.

20. The fire apparatus of claim 12, wherein the single rear axle has a gross axle weight rating of no more than 33,500 pounds and comprises a solid axle configuration extending laterally across the chassis.