Railroad freight car access fittings

Patent metadata

Field	Value
Publication number	US-10689012-B2
Application number	US-201715592879-A
Country	US
Kind code	B2
Filing date	May 11, 2017
Priority date	May 11, 2017
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

A railroad freight car may have external fittings, such as trackside-accessible ladder fittings that permit personnel to climb onto the decks and walkways of the car. Several embodiments of movable ladder assemblies are described that provide an extended or deployed or raised position of a handhold, and a retracted or lowered, or stored position. In other embodiments, the assembly is provided with a compliant member that allows the handhold resiliently to flex when encountered by solid objects such as shipping containers.

First claim

We claim:

1. A trackside access assembly for a railroad freight car, said access assembly comprising:
a fixed portion and at least one movable portion;
said fixed portion being mountable to body structure of the railroad freight car;
said fixed portion including at least a first step and a pair of spaced apart ladder stanchions;
said at least one movable portion including at least one of a left hand handhold and a right hand handhold;
said movable portion being movable between a deployed position and a retracted position;
in said deployed position said handholds being raised relative to said fixed portion;
said movable portion being releasably securable in said deployed position and in said retracted position; and
said fixed portion includes at least a second step spaced upwardly from said first step.

2. The trackside access assembly of claim 1 wherein said assembly includes a left hand handhold and a right hand handhold, each of them being movable independently of the other.

3. The trackside access assembly of claim 1 wherein said at least one movable portion is a single movable portion that includes both left hand and right hand handholds.

4. The trackside access assembly of claim 1 where any said movable portion thereof includes an upwardly slidable hollow post member, and a handhold rail mounted thereto.

5. The trackside access assembly of claim 1 wherein any said movable portion thereof includes an axial member mounted slidably to one of said stanchions, and being mounted to move between deployed and retracted positions guided by said one of said stanchions.

6. The trackside access assembly of claim 1 wherein any said movable portion thereof is releasably engaged in any one of said deployed position and said retracted position by means of a spring-biased indexing member.

7. The trackside access assembly of claim 1 wherein any said movable portion thereof is hingedly mounted to any one of said stanchions thereof.

8. The trackside access assembly of claim 1 wherein said movable portion includes first and second spaced apart uprights and first and second spaced-apart cross-members mounted thereto, said uprights being mounted to move slidably relative to, and to be guided in motion by, said stanchions, and said cross-members defining steps located upwardly of said first step.

9. The trackside access assembly of claim 1 wherein said movable portion includes a U-shaped member pivotally mounted to said stanchions, said U-shaped member having a back and a pair of first and second spaced apart legs; said back of said U-shaped member defining a ladder step, and said first and second arms defining handholds movable to an upright condition when deployed; and said assembly includes a releasable lock operable to restrain said handholds in said upright condition.

10. A trackside access assembly for a railroad freight car, comprising:
a fixed portion and at least one movable portion;
said fixed portion being mountable to body structure of the railroad freight car;
said fixed portion including at least a first step and a pair of spaced apart ladder stanchions;
said at least one movable portion including at least one of a left hand handhold and a right hand handhold;
said movable portion being movable between a deployed position and a retracted position;
in said deployed position said handholds being raised relative to said fixed portion;
said movable portion being releasably securable in said deployed position and in said retracted position; and
each of said left hand handhold and said right hand handhold is movable independently of the other.

11. A trackside access assembly for a railroad freight car, comprising:
a fixed portion and at least one movable portion;
said fixed portion being mountable to body structure of the railroad freight car;
said fixed portion including at least a first step and a pair of spaced apart ladder stanchions;
said at least one movable portion including at least one of a left hand handhold and a right hand handhold;
said movable portion being movable between a deployed position and a retracted position;
in said deployed position said handholds being raised relative to said fixed portion;
said movable portion being releasably securable in said deployed position and in said retracted position; and
said movable portion thereof includes an upwardly slidable hollow post member, and a handhold rail mounted thereto.

12. A trackside access assembly for a railroad freight car, comprising:
a fixed portion and at least one movable portion;
said fixed portion being mountable to body structure of the railroad freight car;
said fixed portion including at least a first step and a pair of spaced apart ladder stanchions;
said at least one movable portion including at least one of a left hand handhold and a right hand handhold;
said movable portion being movable between a deployed position and a retracted position;
in said deployed position said handholds being raised relative to said fixed portion;
said movable portion being releasably securable in said deployed position and in said retracted position; and
said movable portion thereof is releasably engaged in any one of said deployed position and said retracted position by means of a spring-biased indexing member.

13. The trackside access assembly of claim 12 wherein assembly includes a left hand handhold and a right hand handhold, each of them being movable independently of the other.

14. The trackside access assembly of claim 12 wherein said at least one movable portion is a single movable portion that includes both left hand and right hand handholds.

15. The trackside access assembly of claim 12 where any said movable portion thereof includes an upwardly slidable hollow post member, and a handhold rail mounted thereto.

16. The trackside access assembly of claim 12 wherein any said movable portion thereof includes an axial member mounted slidably to one of said stanchions, and being mounted to move between deployed and retracted positions guided by said one of said stanchions.

17. The trackside access assembly of claim 12 wherein any said movable portion thereof is hingedly mounted to any one of said stanchions thereof.

18. The trackside access assembly of claim 12 wherein said movable portion includes first and second spaced apart uprights and first and second spaced-apart cross-members mounted thereto, said uprights being mounted to move slidably relative to, and to be guided in motion by, said stanchions, and said cross-members defining steps located upwardly of said first step.

19. The trackside access assembly of claim 12 wherein said movable portion includes a U-shaped member pivotally mounted to said stanchions, said U-shaped member having a back and a pair of first and second spaced apart legs; said back of said U-shaped member defining a ladder step, and said first and second arms defining handholds movable to an upright condition when deployed; and said assembly includes a releasable lock operable to restrain said handholds in said upright condition.

20. A trackside access assembly for a railroad freight car, comprising:
a fixed portion and at least one movable portion;
said fixed portion mountable to body structure of the railroad freight car;
said fixed portion including at least a first step and a pair of spaced apart ladder stanchions;
said at least one movable portion including at least one of a left hand handhold and a right hand handhold;
said movable portion being movable between a deplo

Assignees

• Nat Steel Car Ltd

Inventors

• Nasrabad Maryam Mansouri
• Al-Kaabi Mohamed
• Vanderby Max
• Black Kenneth Wayne
• Bis Tomasz

Classifications

• E06C7/182

  situated at the top of the ladder · CPC title

• E06C7/04

  Hand-operated extending means carried by the ladder · CPC title

• E06C5/22

  by, or with the assistance of, springs (E06C5/06, E06C5/16 take precedence) · CPC title

• B61D3/20

  for forwarding containers · CPC title

• B61D23/00 Primary

  Construction of steps for railway vehicles (ladders in general E06C) · CPC title