Tire Sidewall Surface Patterning for Marking Visibility
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Solution Overview
Problem
Existing tires lack sufficient visibility enhancement for specific regions, such as the portion with letters, despite existing asymmetrical narrow stripes and protrusion patterns.
Innovation Solution
A tire design featuring a first region with convex portions and a second region with parallel ridges, enhancing visibility by suppressing light reflection and increasing contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If asymmetrical narrow stripes are provided on the tire outer surface, then optical contrast between different portions is improved, but visibility of specific regions such as letter portions is still insufficient
Solution Approach 1:
The tire outer surface is divided into multiple distinct portions: a first portion with asymmetrical narrow stripes, a second portion with asterisk protrusion patterns, and a third portion with ridge patterns. Each portion is segmented to serve specific visual functions, with the third portion specifically designed to enhance visibility of letter markings through enhanced light reflection.
Solution Approach 2:
Different portions of the tire outer surface are given different local qualities in terms of surface geometry and light interaction. The third portion containing letters is specifically designed with ridge patterns that have different height and spacing characteristics compared to other portions, creating localized enhancement of light reflection and visual contrast specifically where letters are located.
2Loss of information
If protrusion patterns are added to enhance visibility, then specific regions become more distinguishable, but light reflection control becomes more complex
Solution Approach 1:
The tire surface features asymmetrical narrow stripes in the first portion and asymmetrical ridge patterns in the third portion. These asymmetrical designs create distinctive light reflection characteristics that enhance visibility without requiring symmetrical repetition, thereby reducing overall pattern complexity while maintaining visual effectiveness.
Solution Approach 2:
The invention introduces dimensional variation through protrusion patterns that extend outward from the tire surface. The asterisk patterns and ridge patterns create three-dimensional surface features with varying heights and depths, adding a vertical dimension to the otherwise two-dimensional tire surface, which enhances light interaction and visibility.
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
Improves the visibility of markings on the tire surface by reducing light reflection and increasing contrast, making specific regions more distinguishable.
Implementation Method 1
enhancing visibility by suppressing light reflection and increasing contrast
Data Source
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AI summary
A tire according to the present disclosure includes, on the tire outer surface, a first region including an uneven surface formed by a convex portion arranged throughout the first region, and a second region including an uneven surface formed by a plurality of ridges arranged in parallel throughout the second region, the second region being arranged adjacent to the first region. The minimum separation distance between apices of the convex portion in the first region is shorter than the minimum separation distance between apices of two adjacent ridges in the second region.