Tire Sidewall Character Pattern for High-Contrast Black Appearance
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Solution Overview
Problem
Existing tire designs with pattern regions for enhanced contrast and design effect are susceptible to aging and do not achieve high enough black color intensity and contrast.
Innovation Solution
A tire design featuring a pattern region with character protrusions that imitate characters or rotated/inverted characters, where character protrusion regions partially overlap, enhancing light absorption and providing higher black color intensity and contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a large number of fine protrusions are aggregated to create a pattern region, then light absorption effect and contrast are improved, but the design effect and appearance are limited
Solution Approach 1:
The pattern region is segmented into multiple character protrusions, each representing a distinct character or symbol. This segmentation allows for improved design flexibility and visual appeal while maintaining the light absorption effect through the aggregated protrusion structure
Solution Approach 2:
Different regions of the sidewall are given different qualities: the pattern region contains character protrusions with specific shapes and arrangements for design purposes, while surrounding regions maintain the basic tire surface structure. This local differentiation enhances both contrast and aesthetic appeal
2Reliability
If contrast is enhanced through protrusion patterns, then aging resistance is improved, but black color intensity is insufficient
Solution Approach 1:
The parameters of the protrusions are optimized to enhance light absorption: protrusion height is set to 0.5-2.0mm, spacing between adjacent protrusions is controlled at 0.1-1.0mm, and the arrangement density is increased. These parameter changes deepen the black color intensity while maintaining the aging-resistant properties of the protrusion-based contrast
3Ease of manufacture
If simple protrusion patterns are used, then manufacturing is simplified, but visual interest and design appeal are reduced
Solution Approach 1:
The character protrusions are formed by copying character shapes or symbols into the tire sidewall surface during the molding process. This copying approach allows for high design appeal with multiple different characters and patterns while maintaining manufacturing simplicity through integration into the existing molding operation
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 design achieves a tire with enhanced black color intensity and contrast that is less susceptible to aging, offering improved design appeal and visual interest.
Implementation Method 1
a pattern region, in which incident light is repeatedly reflected between the protrusions, has a light-absorbing effect
Implementation Method 2
the pattern region is visually recognized to be blacker than the outer surface of the sidewall around the pattern region
Data Source
AI summary
A tire including a pattern region on an outer surface of a sidewall of the tire, the pattern region being visually recognizable as being different from a region other than the pattern region in the outer surface of the side wall of the tire; and a plurality of character protrusions separate from each other in the pattern region. The character protrusions each imitate a character or a rotated or inverted character. Regions each of which has a shape of a parallelogram circumscribed to a contour of a respective one of the character protrusions and is set to have a minimum area are defined as character protrusion regions, and the character protrusion regions of adjacent ones of the character protrusions partially overlap with each other.