Tire Pattern Unit Design for Uniform Light Reflection
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Solution Overview
Problem
Existing tire patterns with anisotropic projections do not appear uniform when viewed from different angles, leading to uneven light reflection and reduced visibility.
Innovation Solution
The tire features a pattern region with unit patterns having extension portions that extend in multiple directions from a bend point, with controlled spacing and orientation, to suppress light reflection and enhance visibility by distributing light reflection uniformly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If anisotropic projections are formed to create contrasting patterns, then light reflection contrast is improved, but appearance uniformity when viewed from different angles deteriorates
Solution Approach 1:
The patent applies asymmetry by designing unit patterns with extension portions that extend in multiple directions from a bend point, rather than using symmetric isotropic projections. This asymmetric configuration allows light to be reflected in multiple directions, creating contrast while maintaining appearance uniformity when viewed from different angles.
Solution Approach 2:
The patent transitions from two-dimensional flat patterns to three-dimensional unit patterns with extension portions having specific projection heights (0.1mm to 1.0mm). This dimensional change enables the patterns to interact with light in multiple directions, achieving both contrast and uniformity simultaneously.
2Illumination intensity
If extension portions are made taller to enhance pattern visibility, then light reflection contrast is improved, but light concentration and tilting increase
Solution Approach 1:
The patent segments the extension portions into multiple discrete units with different orientations rather than using a single tall projection. This segmentation distributes the light reflection across multiple directions, reducing light concentration while maintaining visibility through the cumulative effect of multiple reflection paths.
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 improves the uniformity of the patterned section's appearance and enhances visibility by reducing light concentration and tilting, while also increasing durability and molding characteristics.
Implementation Method 1
Forming the unit patterns to the base in this manner enables reflection of light that is incident to the pattern region to be suppressed, enabling contrast to be created between the pattern region and the exterior of the pattern region
Data Source
AI summary
A tire including a pattern region and plural unit patterns. The pattern region is formed at an outer surface of a tire and includes a base. The plural unit patterns are formed within the pattern region, and each unit pattern is formed including extension portions having a projection height from the base of from 0.1 mm to 1.0 mm. The extension portions extend in plural directions from a bend point in plan view. A spacing between the bend points of adjacent unit patterns out of the unit patterns is from 0.2 mm to 1.0 mm.