Deployable Vehicle Step Assembly for Tailgate Access Flexibility
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Solution Overview
Problem
Existing motor vehicles lack an efficient and flexible deployable step system that allows easy access to cargo spaces, especially when the tailgate assembly is in various positions.
Innovation Solution
A deployable step system mounted to a hitch tube or bumper, which can move between a stowed position and multiple deployed positions, including a position rearward of the bumper, to provide improved access to the cargo space regardless of the tailgate assembly's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed step system is installed on the vehicle, then it provides consistent access to the cargo space, but it cannot adapt to different tailgate positions and blocks access when the tailgate is open
Solution Approach 1:
The step system is designed to be movable rather than fixed, allowing it to transition between stowed and deployed positions. The outer tube rotates about a pivot pin mounted to the bumper, enabling the step assembly to dynamically adjust its position based on tailgate configuration and user needs.
Solution Approach 2:
The step system is divided into multiple independent components: an outer tube that rotates, an inner tube that telescopes, and a step assembly that can be positioned independently. This segmentation allows each component to perform its specific function while contributing to the overall adaptability of the system.
2Ease of operation
If the step system is mounted far rearward to provide access when tailgate is open, then it improves access to open tailgate cargo spaces, but it may interfere with trailer hitch operations
Solution Approach 1:
The step system is designed to serve multiple functions: providing access when the tailgate is closed, providing access when the tailgate is open, and not interfering with trailer hitch operations. The movable design allows it to be positioned appropriately for each scenario, making it universally applicable to different operating conditions.
Solution Approach 2:
The step system acts as an intermediary element that can be positioned between the bumper and the cargo space as needed. When trailer hitch operations are required, the step system can be rotated to a stowed position out of the way, allowing the hitch to function without obstruction.
3Ease of operation
If the step system remains deployed to provide continuous access, then it is always available for use, but it increases the risk of damage and is obstructive when not needed
Solution Approach 1:
The step system transitions from a static deployed state to a dynamic system that can be stowed when not in use. This reduces exposure to potential damage from cargo handling, weather, and accidental impacts while maintaining ready access when needed by simply deploying the step assembly.
Data Source
AI summary
Deployable step systems are disclosed for accessing and utilizing vehicle cargo spaces on vehicles equipped with a tailgate assembly. The proposed deployable step systems may include various deployment mechanisms that are capable of sliding, pivoting, rotating, swinging, and/or otherwise adjusting for providing ease of access and increased flexibility when stepping up to access the vehicle cargo space. The proposed deployable step systems may provide improved access to the vehicle cargo space irrespective of what position the tailgate assembly is positioned in relative to the vehicle cargo space.