Tire Sidewall Reflective Structure for Sparkling Visual Impact
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Solution Overview
Problem
Existing tire decorative technologies do not effectively enhance the visual impact of tires, often masking unevenness rather than improving aesthetics, and can be difficult to clean and maintain.
Innovation Solution
A decorative body with discrete inclined faces that reflect light in a random manner, creating a sparkling effect by varying the number, orientation, and height of reflective pieces per unit surface area, ensuring a balanced distribution of light-reflecting surfaces to enhance visual appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If discrete inclined faces are arranged to reflect light randomly, then visual impact is improved through sparkling effect, but manufacturing complexity increases
Solution Approach 1:
The decorative body is segmented into multiple discrete inclined faces (3 to 200 per cm²) with varying orientations and heights. Each inclined face acts as an independent light-reflecting element, creating a sparkling effect when light hits them from different angles. This segmentation allows the complex visual effect to be achieved through simple geometric units arranged in a controlled pattern.
Solution Approach 2:
Different regions of the decorative body have locally optimized properties: the inclined faces have specific incline angles (5° to 60°) tailored for light reflection, while the spacing and distribution vary to control the density of reflective points. The surface area distribution of inclined faces with different incline angles is carefully controlled (70%-100% of total surface area for faces with smallest incline angle) to optimize both visual effect and manufacturability.
2Illumination intensity
If concave portions with reflective faces are provided, then light reflection properties improve, but dirt accumulation becomes difficult to remove
Solution Approach 1:
Instead of using concave portions with reflective faces that trap dirt, the invention uses convex inclined faces that protrude from the surface. This curved/protruding geometry allows light to reflect effectively while preventing dirt accumulation, as there are no recessed areas where contaminants can become trapped. The smooth, outward-sloping surfaces facilitate easy cleaning.
3Shape
If pattern elements are disposed continuously to mask unevenness, then surface uniformity improves, but visual impact of tire itself is not enhanced
Solution Approach 1:
The invention creates dynamic visual effects through light reflection variations rather than relying on pattern continuity. The discrete inclined faces create sparkling effects that change with viewing angle and lighting conditions, providing active visual interest that enhances the tire's appearance rather than merely masking surface imperfections with uniform patterns.
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 decorative body achieves a sparkling appearance that improves the tire's visual impact and maintains a clean, durable surface by strategically arranging reflective pieces to maximize light reflection and minimize dirt accumulation.
Implementation Method 1
light shone onto a tire can be reflected in the direction of an observer to the side of the tire using a number of discrete inclined faces from out of the plural inclined faces
Data Source
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AI summary
A decorative body is configured including plural reflective pieces including a bottom face configured at a surface of a tire side portion and plural inclined faces each inclined in a direction that is not a direction of the bottom face or a direction of a plane perpendicular to the bottom face. The decorative body includes at least three types of the reflective pieces with different vector orientations from each other when the tire side portion is viewed in plan view and when a vector is defined as an inclined face vector running in a direction from a highest location side toward a lowest location side of the inclined face having the smallest incline angle with respect to the tire side portion, with the highest location side of the vector defined as a start point of the vector and the lowest location side of the vector defined as an end point of the vector. The decorative body includes a region in which the reflective pieces with different vector orientations from each other are disposed adjacently to each other, from 3 to 200 of the reflective pieces are provided per 1 cm2, and the combined surface area taken up by the inclined faces occupies a range of from 70% to 100% of the surface area of the decorative body in plan view.