Vehicle Trim Panel With Flexible Masking Zone for Impact Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Motor vehicle trim panels are prone to damage during low-speed impacts due to their rigidity, which increases repair costs and susceptibility to deformation.
Innovation Solution
Incorporating a masking zone made of a second plastic material more flexible than the light transmission zone material, reducing the overall rigidity of the trim panel and allowing for elastic deformation during impacts, thereby reducing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the masking zone is made of opaque material overmolded onto the transparent material, then the aesthetic appearance is improved, but the rigidity increases making the panel more susceptible to damage
Solution Approach 1:
The patent changes the material parameter of the masking zone from rigid opaque material to flexible material. This allows the masking zone to maintain its aesthetic function while gaining flexibility to absorb impact energy through elastic deformation, thereby resolving the contradiction between aesthetic appearance and impact resistance.
Solution Approach 2:
The patent uses a composite structure where the masking zone is made of a flexible material that is optically opaque or translucent. This composite approach combines the aesthetic benefits of the masking zone with the mechanical benefits of flexibility, allowing the panel to resist impact damage while maintaining appearance quality.
2Stability of the object's composition
If the trim panel uses multiple layers of rigid material for the masking zone, then the structural stability is improved, but the flexibility during impact is reduced leading to plastic deformation
Solution Approach 1:
The patent changes the mechanical parameter of the masking zone from rigid to flexible by selecting materials with appropriate flexibility characteristics. This allows the masking zone to deform elastically during impact rather than undergoing plastic deformation, while still maintaining structural stability through its bonded connection to the transparent zone.
Solution Approach 2:
The patent applies different material properties to different zones of the trim panel. The light transmission zone maintains its transparent and relatively rigid properties for structural support, while the masking zone uses flexible material for impact absorption. This local differentiation resolves the contradiction between overall structural stability and localized flexibility during impact.
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 flexible masking zone absorbs impact energy, preventing plastic deformation and reducing the risk of damage to the trim panel during low-speed or small impacts, thus lowering repair costs and extending the panel's lifespan.
Implementation Method 1
the relative flexibility of the masking zone allows elastic deformation of the latter, enabling the transmission zone to move
Data Source
AI summary
The trim panel for a motor vehicle includes at least one light transmission zone, made of a first plastic material suitable for light transmission, at least one masking zone adjacent to the transmission zone and made at least in part of a second plastic material more flexible than the first material.