Vehicle Headliner Compression Stiffener for Rigidity
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Solution Overview
Problem
Vehicle headliners lack the necessary rigidity to accommodate modular components effectively, leading to the need for additional material layers that increase weight and cost.
Innovation Solution
Incorporating localized compression stiffeners into the headliner substrate, which are elongated indentations formed by compressing an object into the substrate, creating areas of higher density to enhance rigidity without adding weight or cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If additional layers of material are added to the vehicle headliner to increase rigidity, then the rigidity and strength of the headliner is improved, but the weight and cost of the vehicle increase
Solution Approach 1:
The patent applies local quality by creating localized compressed stiffener regions within the headliner substrate. These stiffeners are formed by compressing the substrate material at specific locations to achieve higher density and rigidity only where needed, rather than uniformly increasing the entire headliner's thickness or adding material layers throughout. This localized approach provides enhanced strength at specific areas while maintaining lower overall weight.
Solution Approach 2:
The patent utilizes parameter changes by modifying the density parameter of the headliner substrate material. By compressing the substrate to create stiffener regions with increased density (second density higher than the surrounding first density), the patent achieves varying mechanical properties within the same material structure. This density variation allows for localized rigidity enhancement without adding material layers or increasing overall weight.
2Strength
If additional layers of material are added to the vehicle headliner to increase rigidity, then the strength of the headliner is improved, but the cost of the vehicle increases
Solution Approach 1:
The patent applies local quality by creating localized compressed stiffener regions within the headliner substrate. These stiffeners are formed by compressing the substrate material at specific locations to achieve higher density and rigidity only where needed, rather than uniformly increasing the entire headliner's thickness or adding material layers throughout. This localized approach provides enhanced strength at specific areas while maintaining lower overall weight.
Solution Approach 2:
The patent utilizes parameter changes by modifying the density parameter of the headliner substrate material. By compressing the substrate to create stiffener regions with increased density (second density higher than the surrounding first density), the patent achieves varying mechanical properties within the same material structure. This density variation allows for localized rigidity enhancement without adding material layers or increasing overall weight.
3Strength
If the headliner substrate density is increased throughout to improve rigidity, then the overall strength is improved, but the weight and cost increase
Solution Approach 1:
The patent applies local quality by creating localized compressed stiffener regions within the headliner substrate. These stiffeners are formed by compressing the substrate material at specific locations to achieve higher density and rigidity only where needed, rather than uniformly increasing the entire headliner's thickness or adding material layers throughout. This localized approach provides enhanced strength at specific areas while maintaining lower overall weight.
Solution Approach 2:
The patent applies partial action by compressing only specific regions of the headliner substrate to create stiffeners, rather than uniformly processing the entire substrate. This partial compression approach concentrates material density changes only in areas requiring enhanced rigidity, reducing the total quantity of compressed material needed compared to a full-substrate compression approach.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively increases the rigidity of the headliner in specific areas, enhancing its structural integrity while maintaining a low weight and cost profile.
Implementation Method 1
The stiffener is an elongated indentation formed by firmly compressing an object into the substrate of a headliner
Data Source
AI summary
The present invention provides for a vehicle headliner having localized compressed stiffeners to increase rigidity and decrease brittleness. The headliner compression stiffener adds rigidity to the headliner substrate without adding additional cost or additional weight. At least one compression stiffener is added to a vehicle headliner to an area of the vehicle headliner requiring increased rigidity qualities. The stiffener is an elongated indentation formed by firmly compressing an object into the substrate of a headliner. The substrate of the vehicle headliner includes a first predetermined density in areas where the stiffener is not located. A second density is localized in the headliner substrate in the area directly below the indentation of the stiffener. The predetermined first density is lower in measurement than the second density of the substrate directly below the indentation of the stiffener. By increasing density in the area directly below the stiffener indentations, the headliner as a whole is stronger in areas near the stiffener indentations without increasing weight or substantially increasing cost.