Pneumatic Tire Side Decorative Ridge Patterns
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Solution Overview
Problem
The external appearance of pneumatic tire side portions is not adequately improved due to visible convexity and concavity, which existing side decorative bands fail to fully conceal.
Innovation Solution
A decorative concave portion with alternating first and second direction ridge patterns, where the main and sub-ridges have different projecting heights and orientations, creating distinct light reflection patterns that make the tire side portion appear three-dimensional and conceal convexity and concavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the thickness of the tire sides is made thin to decrease weight, then weight is reduced, but convexity and concavity caused by belt end portions becomes visible at the tire side surfaces
Solution Approach 1:
The patent applies optical effects through ridge patterns that reflect light differently to create visual deception. The alternating light and dark regions formed by the ridge patterns mask the convexity and concavity on the tire side surface, making defects invisible through optical manipulation rather than physical concealment.
Solution Approach 2:
The patent introduces a new dimension of light reflection by creating three-dimensional ridge patterns on the two-dimensional tire side surface. These ridges project outward and create multiple light reflection angles, adding depth and visual complexity that masks underlying surface irregularities.
2Shape
If a simple side decorative band is provided to conceal convexity and concavity, then surface defects are masked, but the external appearance is not adequately improved
Solution Approach 1:
The decorative concave portion is segmented into multiple ridge patterns with different orientations (first direction and second direction ridges). This segmentation creates alternating light and dark regions that work together to mask surface defects while providing a complex, aesthetically pleasing appearance that goes beyond simple decorative bands.
3Shape
If multiple ridge patterns with different orientations are alternately disposed, then light is reflected in multiple directions creating a three-dimensional effect, but the structure becomes more complex
Solution Approach 1:
Different regions of the decorative concave portion have different ridge orientations (first direction vs. second direction). This local variation in quality creates diverse light reflection characteristics across different areas, producing a rich three-dimensional visual effect while maintaining a systematic structure that is manageable in complexity.
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 effectively conceals convexity and concavity, enhancing the external appearance of the tire side portion by creating a three-dimensional effect through varied light reflection, thereby improving aesthetics.
Implementation Method 1
a light reflection pattern of the sub-ridge region being different than that of the main ridge region
Data Source
AI summary
First direction ridge patterns and second direction ridge patterns are lined-up alternately at a decorative concave portion 18. Plural main ridges 22A through 22D and sub-ridges 26A through 26D, which project-out from a bottom surface 18A, are formed at a first direction ridge pattern 20. The respective ridges are disposed in parallel such that ridge extending directions are a same direction. Light reflection patterns are different at a main ridge region 24, 34 and a sub-ridge region 28, 38.