Tire Sidewall Hatching Ribs for Stronger Optical Contrast
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Solution Overview
Problem
Existing pneumatic vehicle tire hatching areas lack a striking contrast effect and optical effects due to limitations in light reflection and shadow formation, which are not adequately addressed by current designs.
Innovation Solution
The lateral flanks of the hatching ribs have different surface finishes, with one flank featuring a three-dimensional structure and the other a smooth surface, creating varying light absorption and reflection effects for enhanced contrast, particularly on black rubber sidewalls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If hatching ribs with uniform surface finish are used, then manufacturing is simpler, but optical contrast effect is insufficient
Solution Approach 1:
The patent applies local quality by differentiating the surface finish of different parts of the hatching ribs. Specifically, at least one lateral flank of the hatching ribs is provided with a three-dimensional structure (elevations and depressions) while other flanks may remain smooth or have different structures. This local differentiation creates varying light reflection and absorption effects across different areas of the same hatching rib, thereby enhancing the optical contrast effect without requiring complete restructuring of all surfaces.
Solution Approach 2:
The patent employs asymmetry by creating non-uniform surface finishes on the lateral flanks of hatching ribs. The three-dimensional structures are applied asymmetrically, with different flanks having different surface characteristics (structured vs. smooth). This asymmetric design breaks the uniformity of traditional hatching patterns and creates dynamic light interaction that enhances visual contrast and aesthetic appeal.
2Illumination intensity
If three-dimensional structures are added to enhance contrast effect, then optical effect is improved, but manufacturing precision requirements increase
Solution Approach 1:
By applying three-dimensional structures only to specific lateral flanks rather than uniformly across all surfaces, the patent reduces the total surface area requiring high-precision manufacturing. The smooth flanks require minimal precision while the structured flanks provide the necessary optical effect, thereby balancing manufacturing feasibility with optical performance.
Solution Approach 2:
The patent implements partial action by providing three-dimensional structures on only some lateral flanks of the hatching ribs rather than all flanks. This partial application is sufficient to achieve the desired optical contrast effect while avoiding the excessive manufacturing complexity and precision requirements that would result from uniformly structuring all surfaces.
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
This configuration results in a more striking and optically advantageous contrast effect, making the hatching ribs stand out clearly from surrounding areas through controlled light interaction, effectively concealing construction unevenness and enhancing visual appeal.
Implementation Method 1
Since the surface finish of the lateral flanks of the hatching ribs is directly related to the light absorption or light reflection effect of the lateral flanks
Implementation Method 2
the light absorption or light reflection effect of the lateral flanks
Data Source
AI summary
Pneumatic vehicle tire having sidewalls and having at least one hatching area (1) or a hatched area element on at least one sidewall, wherein the hatching area (1) or the area element has a multiplicity of hatching ribs (2, 2′, 2″) running next to one another and having two lateral flanks (3a, 3′a, 3″a, 3b, 3′b, 3″b). The one lateral flank (3a, 3′a, 3″a) of the hatching ribs (2, 2′, 2″) has a surface finish which differs from that on the other lateral flank (3b, 3′b, 3″b) of the hatching ribs (2, 2′, 2″).