Convertible Top Headliner Guide Link Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing convertible vehicle tops face issues with the headliner fabric not having enough distance from other links of the top linkage, leading to potential entanglement and failure during displacement, which affects the optimal guiding and appearance of the headliner fabric.
Innovation Solution
The introduction of guide links hinged to the tension rod assemblies ensures the headliner fabric maintains sufficient distance from other top components, with actuation means like pull cables guiding the guide links to prevent entanglement and define the fabric's position, enhancing both functionality and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the headliner fabric is positioned close to the top linkage components to save space, then the device complexity is reduced, but the reliability deteriorates due to potential entanglement and failure during displacement
Solution Approach 1:
A guide link is introduced as an intermediary component between the headliner fabric and the top linkage. This guide link maintains a defined distance between the fabric and the linkage components, preventing entanglement while enabling compact space utilization. The guide link acts as a mediator that ensures reliable operation without requiring excessive installation space.
2Reliability
If guide links are added to maintain distance between headliner fabric and top linkage, then reliability is improved, but device complexity increases
Solution Approach 1:
The guide link is designed to perform multiple functions: it maintains the defined distance between the headliner fabric and top linkage, guides the fabric during displacement, prevents entanglement with linkage components, and integrates into the existing top linkage structure. This multi-functionality minimizes the added complexity while maximizing reliability benefits.
Solution Approach 2:
The guide link is integrated into the existing top linkage structure, merging its functionality with the overall mechanism. Rather than being a completely separate system, the guide link combines with the tension rod assembly and other linkage components to form a unified structure that achieves both compactness and reliability.
3Ease of operation
If the headliner fabric is allowed to move freely during top displacement, then ease of operation is improved, but harmful factors increase due to potential entanglement with linkage components
Solution Approach 1:
The guide link serves as a protective intermediary that guides the headliner fabric through the displacement process, ensuring it maintains proper clearance from the top linkage components. This prevents the fabric from entering the trajectory of moving links and becoming entangled, while still allowing smooth operation of the top mechanism.
Data Source
AI summary
A top for a convertible vehicle having a foldable top cover and a top linkage for deploying the top cover, the top linkage being displaceable between a closed position and a storage position, the top linkage having a link assembly on either side of the top, each link assembly being pivotably mounted on a vehicle-attached main bearing and having a tension rod assembly hinged to a tension bow which extends between the bilaterally disposed link assemblies and limits the top cover at its rear edge in the closed position, and the top having a headliner assembly having a foldable headliner fabric and forming an inner visible surface of the top in the closed position. The headliner assembly may have a guide link on either side of the top, each guide link being hinged to the respective tension rod assembly, and the headliner fabric being in contact with each guide link.