Tire Sidewall Display Structure for Visibility Without Dirt Buildup
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Solution Overview
Problem
Existing tire sidewalls face challenges in maintaining durability while enhancing the visibility and preventing contamination of displayed characters or graphics, particularly due to insufficient contrast and susceptibility to dirt accumulation.
Innovation Solution
The sidewall design incorporates a recessed base portion with a closed-loop projection portion, featuring alternating phase differences and congruent protrusions and recesses, which improve contrast and visibility while maintaining durability by preventing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If colors or fine grooves are applied to enhance visibility of characters or graphics on the sidewall, then the visibility is improved, but the sidewall becomes more susceptible to contamination and durability is compromised
Solution Approach 1:
The sidewall surface is segmented into distinct display portions and non-display portions. The display portions are further divided into base portions and projection portions, creating a multi-level structure that separates the visual display function from the protective function, allowing each segment to optimize its specific role without compromising the other.
Solution Approach 2:
The invention transitions from a two-dimensional flat sidewall surface to a three-dimensional structure with projection portions extending outward and base portions recessed inward. This dimensional change creates depth and contrast for enhanced visibility while the recessed base portions form protective barriers against contamination, solving both visibility and durability requirements simultaneously.
2Reliability
If the sidewall surface is made flat and smooth for durability, then contamination is reduced, but the contrast and visibility of displayed characters or graphics is insufficient
Solution Approach 1:
Different regions of the sidewall are assigned different structural qualities: projection portions have elevated surfaces optimized for visual display with enhanced contrast, while base portions are recessed to provide protective barriers. This local differentiation allows each area to have the specific quality needed for its function without compromising the overall durability of the sidewall.
3Illumination intensity
If projection portions are added to enhance visibility, then contrast is improved, but the structural complexity and potential weak points increase
Solution Approach 1:
The projection portions are nested upon the base portions, with the projection portions containing characters or graphics within their elevated surfaces. This nested structure integrates multiple functions (structural support, visual display, and contamination protection) into a unified hierarchical form, reducing overall complexity compared to separate components while maintaining enhanced visibility through the projection-base relationship.
Data Source
AI summary
A tire comprising a sidewall including a display portion on a surface thereof where characters or graphics are displayed, and a non-display portion on the surface excluding the display portion, wherein the display portion comprises a base portion recessed with respect to the non-display portion, and a projection portion provided in a closed-loop shape on the base portion.