Support structure for a ladder assembly of a fire apparatus

Patent metadata

Field	Value
Publication number	US-12378102-B2
Application number	US-202117555784-A
Country	US
Kind code	B2
Filing date	Dec 20, 2021
Priority date	Nov 24, 2014
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A support structure for a ladder assembly of a fire apparatus includes a torque box, a pedestal, and a support plate. The torque box includes a top surface defining an aperture. The pedestal has (i) a lower end received by the aperture of the torque box and (ii) an upper end configured to couple to the ladder assembly. The support plate is positioned along the top surface of the torque box. The support plate includes a first leg and a second leg. The first leg extends from a first side of the support plate and is configured to engage with a first rail of the fire apparatus. The second leg extends from an opposing second side of the support plate and is configured to engage with a second frame rail of the fire apparatus.

First claim

The invention claimed is:

1. A support structure for a ladder assembly of a fire apparatus, the support structure comprising:
a pair of frame rails;
a pair of brackets coupled to the pair of frame rails;
a torque box extending along a portion of the pair of frame rails, the torque box having a top surface, a first sidewall, and an opposing second sidewall, the top surface defining a first aperture;
a support including:
a plate defining a second aperture, the plate positioned along the top surface of the torque box with the second aperture in alignment with the first aperture;
a first leg extending from a first side of the plate and disposed along the first sidewall of the torque box; and
a second leg extending from an opposing second side of the plate and disposed along the opposing second sidewall of the torque box, wherein the first leg and the second leg are coupled to the pair of brackets; and

a pedestal having (i) a lower end received by the first aperture of the torque box and the second aperture of the plate and (ii) an upper end extending upward above the torque box and the plate.

2. The support structure of claim 1 , further comprising a single set of outriggers coupled to a first end of the torque box.

3. The support structure of claim 2 , further comprising a single downrigger coupled to an opposing second end of the torque box.

4. The support structure of claim 3 , wherein the single downrigger is positioned along a longitudinal centerline of the torque box.

5. The support structure of claim 4 , further comprising a downrigger plate coupled to the opposing second end of the torque box, the downrigger plate including a bracket, wherein the single downrigger is coupled to the bracket.

6. The support structure of claim 1 , further comprising:
an outrigger housing coupled to an end of the torque box; and
a pair of outriggers received within the outrigger housing.

7. The support structure of claim 6 , further comprising at least one of:
an upper support extending from the outrigger housing and disposed along the top surface of the torque box; or
a lower support extending from the outrigger housing and disposed along a bottom surface of the torque box.

8. The support structure of claim 7 , further comprising both the upper support and the lower support.

9. The support structure of claim 1 , further comprising:
a downrigger plate coupled to an end of the torque box, the downrigger plate including a bracket; and
a downrigger coupled to the bracket.

10. The support structure of claim 1 , wherein the torque box is configured to span a rear axle of the fire apparatus.

11. The support structure of claim 1 , further comprising a tube extending laterally outward from the pedestal, wherein the tube provides a passageway to an interior of the pedestal.

12. The support structure of claim 11 , wherein at least one of the first leg or the second leg of the support defines a first tube aperture that receives a portion of the tube.

13. The support structure of claim 12 , wherein at least one of the first sidewall or the opposing second sidewall of the torque box defines a second tube aperture that aligns with the first tube aperture and receives a portion of the tube.

14. The support structure of claim 1 , wherein a wall of the pedestal defines an aperture that provides access to an interior of the pedestal.

15. A support structure for a ladder assembly of a fire apparatus, the support structure comprising:
a torque box including a top surface defining a first aperture;
a pedestal having (i) a lower end received by the first aperture of the torque box and (ii) an upper end; and
a support plate defining a second aperture, the support plate positioned along the top surface of the torque box with the second aperture in alignment with the first aperture, the support plate including:
a first leg extending from a first side of the support plate and configured to engage with a first portion of a chassis of the fire apparatus; and
a second leg extending from an opposing second side of the support plate and configured to engage with a second portion of the chassis.

16. The support structure of claim 15 , further comprising a tube extending laterally outward from the pedestal, wherein the tube provides a passageway to an interior of the pedestal.

17. The support structure of claim 16 , wherein at least one of the first leg or the second leg of the support plate defines a tube aperture that receives a portion of the tube.

18. The support structure of claim 16 , wherein at least one of a first sidewall or an opposing second sidewall of the torque box defines a tube aperture that receives a portion of the tube.

19. The support structure of claim 15 , wherein a wall of the pedestal defines an aperture that provides access to an interior of the pedestal.

20. A support structure for a ladder assembly of a fire apparatus, the support structure comprising:
a torque box including a top surface defining an aperture;
a pedestal having (i) a lower end received by the aperture of the torque box and (ii) an upper end configured to couple to the ladder assembly; and
a support plate positioned along the top surface of the torque box, the support plate including:
a first leg extending from a first side of the support plate and configured to engage with a first rail of the fire apparatus; and
a second leg extending from an opposing second side of the support plate and configured to engage with a second frame rail of the fire apparatus.

Assignees

• Oshkosh Corp

Inventors

• Archer David W
• Parshall Don
• Betz Eric D
• Morrow Jon J
• Kramer Peter K
• Lind Troy D

Classifications

• B66F11/044

  Working platforms suspended from booms · CPC title

• E06C7/16

  Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms (aspects relating to the lifting B66F) · CPC title

• E06C5/04 Primary

  capable of being elevated or extended {; Fastening means during transport, e.g. mechanical, hydraulic} · CPC title

• A62C27/00

  Fire-fighting land vehicles · CPC title

• B60Y2200/49

  Movable platforms, Load ramps, e.g. working platforms · CPC title