Pivoting Vehicle Step Cover for Debris Protection
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Solution Overview
Problem
Vehicles with operator stations experience hazardous accumulation of mud, snow, or debris on steps, posing a slippery and dangerous exit for operators, particularly in agricultural and earth-working operations.
Innovation Solution
A step protector with a pivotally mounted cover that can be manually or automatically opened and closed, extending from top to bottom to prevent debris accumulation, featuring a bracket assembly with double hinges and an optional actuator for automatic operation coordinated with vehicle switches or transmission states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a fixed cover is installed on vehicle steps, then debris accumulation is prevented, but operator access to the cab becomes difficult
Solution Approach 1:
The cover is designed to be movable rather than fixed, allowing it to switch between covering and open positions. The bracket assembly with hinges and latches enables the cover to be easily opened when operators need to access the cab and closed when debris protection is needed, resolving the contradiction between protection and accessibility.
2Ease of operation
If manual cover operation is used, then operator control is maintained, but automation and convenience are reduced
Solution Approach 1:
The system allows operators to choose between manual operation (maintaining control) and automatic operation (increasing convenience). The actuator can be automatically triggered by vehicle sensors or remote devices, enabling the cover to open/close based on vehicle state without requiring manual intervention, thus achieving automation while preserving operator control options.
3Extent of automation
If automatic actuator operation is implemented, then convenience is improved, but device complexity increases
Solution Approach 1:
The actuator system is designed to be integrated with existing vehicle systems, using universal control signals from vehicle sensors or remote devices. This multi-functional approach allows the same actuator mechanism to respond to various triggers (vehicle motion, remote commands, manual activation) without requiring separate complex control systems, thereby reducing overall device complexity while maintaining automation.
4Object-affected harmful factors
If the cover extends fully from top to bottom of steps, then debris protection is maximized, but manufacturing cost and complexity increase
Solution Approach 1:
The cover is divided into multiple sections or panels that can be separately manufactured and assembled. This segmentation allows each section to be produced using standard manufacturing processes, reducing overall manufacturing complexity and cost while still providing full coverage from top to bottom when assembled together on the vehicle steps.
Data Source
AI summary
A cover is provided to protect steps leading to a cab of a vehicle from accumulation of mud, snow, ice and other debris when the vehicle is driven. The cover is pivotally mounted for movement between an open position allowing a vehicle operator to climb the steps and a closed position covering the steps from top to bottom to maintain cleanliness of the steps as the vehicle is driven. The cover can be opened and closed from the top of the steps, either manually or with an actuator. The cover is normally closed when the vehicle is moving and open when the vehicle is stationary.