Vehicle Headliner Modular Connection Profile
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Solution Overview
Problem
Current vehicle headliner designs require the removal and reinstallation of the windshield for replacement, increasing time and cost due to the need for a new windshield, and existing multi-piece solutions either become non-dismountable or require entire headliner replacement upon damage.
Innovation Solution
A vehicle roof liner connection system comprising mirror-image profile strips with grooves and projections allows for detachable and reattachable individual parts, forming a collapsible unit that can be easily installed and removed without damaging the headliner, using a tongue/groove principle with slots and projections for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a one-piece headliner is used, then the headliner provides a complete coverage and aesthetic appearance, but the windshield must be removed for replacement which increases time and cost
Solution Approach 1:
The headliner is divided into multiple separate parts (front part, rear part, and intermediate parts) that can be independently removed and installed. This segmentation allows the headliner to be replaced without removing the windshield, as the individual parts can be accessed through the windshield opening, thereby reducing replacement time and cost while maintaining complete coverage when assembled.
2Adaptability or versatility
If a multi-piece headliner with glued connections is used, then the headliner can be designed in multiple parts, but the pieces become non-dismountable forming a one-piece unit
Solution Approach 1:
The connection between headliner parts uses a dynamic mechanical fastening system with reversible connectors that allow the parts to be easily assembled and disassembled. The connectors feature engagement elements that can be inserted and locked into place, providing a secure connection during use, but can be readily released when disassembly is needed, thus maintaining both design flexibility and operational ease.
3Ease of operation
If the headliner is designed as a one-piece unit with folded edges, then the edge areas can be folded down for installation, but the entire headliner must be replaced if any part is damaged
Solution Approach 1:
The headliner is constructed as separate modular parts that connect through mechanical fasteners rather than being permanently bonded. This segmentation enables individual parts to be replaced independently when damaged, while the modular design with folded edges maintains installation flexibility, allowing parts to be accessed and installed through the windshield opening.
4Ease of operation
If a reversible connection system with multiple components is used, then the headliner parts can be detached and reattached, but the connection structure becomes more complex
Solution Approach 1:
The reversible connection system uses integrated connector elements that combine multiple functions into single components. The connectors incorporate both the fastening mechanism and the structural support functions, reducing the overall number of separate components needed. This merging approach enables detachable and reattachable connections while minimizing the increase in structural complexity.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The connection (40) of the vehicle headliner (1), which consists of several headliner sections (2, 3), is formed at edges (22, 23) of the headliner sections (2, 3) in the connection area of these sections. Each of the sections (2, 3) of the headliner (1) can be attached separately and disassemblably to the roof section of the vehicle body in the vehicle interior from the back of the headliner (1), which is invisible when the headliner (1) is installed. The invention is characterized in that the connection of the vehicle headliner consists of a profile strip (25, 25') usable on both sides, which includes a groove (27) and a profile section (41). The profile strip (25, 25') is used in the headliner connection (40) in a mirror-image manner, such that the profile strip (25) is attached to the edge (22) of the first headliner part (2) and the profile strip (25') is attached to the edge (23) of the second headliner part (3).The profile part (41) is designed so that it sinks precisely into the groove (27) of the two mutually adjacent profile strips (25, 25').