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Removable step for a machine mounted ladder

A technology of steps and steps, applied in the field of steps with separate detachable steps, can solve problems such as difficulties

Inactive Publication Date: 2010-09-22
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Depending on how the ends of the ladder structure are attached to the vehicle, this removal can be difficult, if not impossible
Also, because the steps are made of extruded aluminum, stepped structures may only be able to withstand light-duty applications

Method used

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  • Removable step for a machine mounted ladder
  • Removable step for a machine mounted ladder
  • Removable step for a machine mounted ladder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] figure 1 An exemplary embodiment of machine 100 is shown. In this embodiment, machine 100 may include a front end 102 , a rear end 104 , a frame 106 , and an operator station, such as an enclosed operator cab 108 . Frame 106 may connect front end 102 to rear end 104 and provide structural support and integrity for machine 100 . An operator cab 108 may be mounted on the frame 106 . As used herein, frame 106 may refer to any structural support assembly that is generally secured in a fixed location on machine 100 .

[0012] Operator cab 108 may be supported on frame 106 . Operator cab 108 may also be open and may include any location from which an operator can operate machine 100 . Operator cab 108 may include controls for operating and navigating machine 100 .

[0013] Machine 100 may also include a platform 114 and an access system 116 . The platform 114 may be adjacent to the operator cab 108 and, in one embodiment, may be a step or floor on which an operator step...

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PUM

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Abstract

A step (134) for a ladder (116) for a mobile machine (100) is disclosed. The step has a body (136) with a first side portion (135) and a second side portion (135), wherein the side portions are located on opposite ends of the step body, the first side portion being configured to facemount to a first side rail (118) attached to the machine and the second side portion being configured to facemount to a second side rail (120) attached to the machine. The step also has a first plurality of bores (140) located within the first side portion, wherein the first plurality of bores is configured to be aligned with a first plurality of holes (130) located in the first side rail, the first plurality of bores and the first plurality of holes being configured to receive a first plurality of fasteners (142). The step further has a second plurality of bores (140) located within the second side portion, wherein the second plurality of bores is configured to be aligned with a second plurality of holes (130) located in the second side rail, the second plurality of bores and the second plurality of holes being configured to receive a second plurality of fasteners (142).

Description

technical field [0001] The present invention is directed to a ladder, and more particularly to a ladder having individually removable steps mounted to a machine. Background technique [0002] Some large machines, such as wheel loaders, off-road trucks, excavators, and other earth-moving machines have elevated cabs that are accessible only by steps. To withstand the harsh environment in which the machine operates, the steps are typically a one-piece welded structure that is pivotally mounted to the machine. That is, the steps are typically designed so that when the machine is stationary, the steps pivot to a first position where an operator can enter and exit, and when the machine is moving, the steps pivot to a second, protected position. Although this type of ladder is used in many situations, it is expensive and its usefulness is limited. Specifically, while the ladder can be pivoted to avoid damage, when any part of the ladder is damaged, the entire ladder needs to be r...

Claims

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Application Information

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IPC IPC(8): B60R3/00E06C7/08
CPCE06C7/086B60R3/00
Inventor R·J·埃金格D·N·戈赫尔
Owner CATERPILLAR INC