Operator Cabin Structural Posts for Work Vehicle Visibility
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Solution Overview
Problem
The field of view for operators of work vehicles, such as motor graders, is often obstructed by structural components, making it difficult to observe critical areas like the blade's toe and heel ends and steered wheels, leading to imprecise control and operation.
Innovation Solution
The operator cabin is configured with structural members positioned to enhance the operator's view, with front structural posts spaced inward and extending from the floor to the roof, overlapping certain machine components and providing open viewing areas near the cabin floor, thereby reducing obstructions and improving visibility of key machine components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator cabin is positioned to provide a commanding view of the machine, then the operator can observe most components, but structural components like actuators and frame members obstruct the view of critical areas such as the blade's toe and heel ends
Solution Approach 1:
The operator cabin is divided into multiple viewing zones with strategically positioned windows. Front windows are positioned to observe the blade's toe and heel ends, side windows observe the steered wheels, and rear windows provide overall machine visibility. This segmentation allows the operator to view critical areas without structural obstructions blocking the line of sight.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of windows at different heights and angles on the operator cabin. Windows are positioned at front, side, and rear locations with varying orientations to create multiple viewing dimensions, allowing the operator to observe critical components from optimal angles that avoid obstructions from actuators and frame members.
2Adaptability or versatility
If the working tool is positioned at a far forward or rearward location or low to the ground, then the machine can perform its function, but the operator's ability to see the tool's position becomes difficult
Solution Approach 1:
The operator cabin incorporates windows at multiple heights and orientations to provide viewing angles that extend to low-lying components and distant forward or rearward positions. The three-dimensional arrangement of windows allows the operator to observe the working tool's position across the full range of motion without requiring the operator to physically reposition.
3Ease of operation
If the operator seat is positioned to face forward, then the operator has a natural forward-looking view, but components between the cabin and steered wheels obstruct the view of wheel articulation and lean
Solution Approach 1:
The operator cabin includes specifically positioned side windows and front windows that create dedicated viewing corridors to the steered wheels. These segmented viewing zones allow the operator to observe wheel articulation and lean without the obstruction of frame members and actuators that would block a direct forward view.
Data Source
AI summary
A work vehicle includes a main frame extending along a longitudinal axis and a pair of actuators mounted to the main frame. The actuators are configured to set an orientation of a tool mounted below the main frame, which in a home position center the tool on the longitudinal axis. An operator cabin mounted to the main frame has a pair of structural posts extending from a floor to a roof at a front side of the operator cabin. An operator seat mounted in the operator cabin faces forward so as to create a forward field of view to the tool for an operator seated in the operator seat. The front structural posts are spaced apart laterally on each side of the main frame at a distance from a longitudinal axis such that they each overlap along a reference line one of the actuators within a forward-looking field of view.