Removable Vehicle Hinge Step for Roof Cargo Access
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Solution Overview
Problem
Existing motor vehicles lack an efficient and convenient method for accessing roof-mounted cargo without the need for large and cumbersome ladders.
Innovation Solution
An accessory step system comprising a step portion and a hook portion that can be removably mounted to the hinge assembly of a vehicle's closure member system without using fasteners, allowing users to access the roof while the vehicle is stationary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional ladders are used to access roof-mounted cargo, then access capability is achieved, but device complexity and portability are worsened due to large and cumbersome structure
Solution Approach 1:
The accessory step system is divided into separate components: a step portion and a hook portion that can be independently attached to the closure member. This segmentation allows the system to be compact and easy to store while providing full access capability when deployed.
Solution Approach 2:
The accessory step is designed to be universally compatible with various closure members (doors, swing gates, lift gates) through the hook portion that engages with the hinge assembly. This multi-functionality allows a single device to serve different access needs across various vehicle types without requiring specialized equipment.
2Ease of operation
If accessory step is removably mounted without fasteners, then ease of operation is improved, but reliability may be worsened due to potential detachment
Solution Approach 1:
The hook portion is designed to dynamically engage with the hinge assembly, allowing for easy attachment and detachment while maintaining secure connection during use. The hinge engagement provides natural movement accommodation while preventing unintended detachment through the geometric interlocking of the hook and hinge components.
3Adaptability or versatility
If accessory step engages with hinge assembly, then adaptability is improved, but manufacturing precision requirements are worsened due to interface compatibility
Solution Approach 1:
The hook portion is designed with universal engagement features that can interface with various hinge assembly configurations found on different closure members (doors, swing gates, lift gates). This universality achieves adaptability across multiple vehicle types while the design accommodates reasonable manufacturing tolerances through its engagement geometry.
Data Source
AI summary
Accessory steps are provided for use on motor vehicles during stationary or non-moving conditions of the vehicle. Exemplary accessory steps may include a step portion and a hook portion. The step portion may be configured to provide a step surface for a user to step on in order to access an upper vehicle structure. The hook portion may be configured to engage a hinge assembly of a closure member system of the stationary motor vehicle.