Vehicle Trim Shell Structure for Seamless Panel Gaps
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Solution Overview
Problem
Existing vehicle trim assemblies fail to seamlessly cover gaps and seams between trim panels, resulting in a visually unappealing interior from the occupant's perspective, and lack flexibility for alignment and installation around structural components.
Innovation Solution
A trim assembly featuring a shell that extends continuously across gaps between trim panels, coupled with a flexible skin and connector portions, allowing the shell to deform and align panels while obscuring gaps, and includes a weakened portion for easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If trim panels are separated to allow for installation and alignment, then ease of assembly is improved, but gaps and seams become visible deteriorating aesthetic appearance
Solution Approach 1:
A flexible shell is introduced as an intermediary component that spans across gaps between trim panels. The shell has a continuous outer surface that visually connects the panels while the underlying structure allows for panel separation during assembly. This mediator hides the discontinuities while permitting the trim panels to be installed separately.
Solution Approach 2:
The patent employs a flexible shell that can deform to accommodate gaps between trim panels. The shell's flexibility allows it to conform to the spatial relationships between separated panels while maintaining a continuous visual appearance. The weakened portion enables the shell to bend and adapt during installation without breaking.
2Strength
If trim panels are rigidly connected to ensure structural integrity, then strength is improved, but flexibility for alignment and installation is reduced
Solution Approach 1:
The trim assembly is segmented into separate trim panels that can be independently positioned and aligned. The flexible shell acts as a connector that joins these segments while allowing for adjustment. This segmentation enables each panel to be installed separately with proper alignment before the shell is secured.
Solution Approach 2:
The shell transitions from a flexible state during installation to a more rigid state when secured. The weakened portion allows the shell to deform dynamically during assembly to accommodate alignment adjustments, while the secured state provides structural integrity. This dynamic behavior allows the system to adapt during installation and then maintain strength during use.
3Shape
If a continuous shell is used to cover gaps between trim panels, then aesthetic appearance is improved, but device complexity increases
Solution Approach 1:
A single flexible shell replaces the need for multiple separate trim pieces or complex joining mechanisms. The shell's ability to deform and conform to the geometry of the trim panels simplifies the overall assembly while providing a continuous visual appearance. The weakened portion allows the shell to be installed as a single piece without requiring complex segmentation.
4Shape
If trim panels are installed with precise alignment to eliminate gaps, then aesthetic appearance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The flexible shell serves as a mediator that compensates for minor misalignments between trim panels. Rather than requiring the panels themselves to be perfectly aligned, the shell bridges the gaps and provides a continuous visual appearance. This transfers the alignment tolerance requirement from the rigid panels to the flexible shell, which can accommodate variations more easily.
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 provides a visually seamless interior, facilitates easy assembly and alignment of trim panels, and allows for flexible installation around structural components, enhancing the aesthetic and functional integrity of the vehicle's interior.
Implementation Method 1
the shell has a weakened portion that separates a first shell portion from a second shell portion and is configured to allow the shell to deform in response to a force
Data Source
Figure 1~2B
Figure 3~4
Figure 5~6
AI summary
A trim assembly has a trim portion that includes a first trim panel and a second trim panel that are separated by a gap. A shell is configured to couple with the trim portion, and an outer surface of the shell is continuous from an outer edge of the first trim panel to an outer edge of the second trim panel and extends across the gap.