Pneumatic Tire Side Mark Visibility via Segmented Coloring
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Solution Overview
Problem
Existing pneumatic tire marking techniques require high positional accuracy for edge coloring, which is challenging to achieve and may not effectively enhance visibility, especially when the whole top surface of the projecting portion is colored.
Innovation Solution
A pneumatic tire design featuring recessed or projecting portions on the side with a colored portion along the outer edge, offset from the mark, allowing for enhanced visibility without the need for precise edge coloring, using a combination of offset profiles and color gradations to create a three-dimensional appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the whole top surface of the projecting portion is colored to enhance visibility, then the visibility of the mark is improved, but the positional accuracy requirement for edge coloring becomes extremely high
Solution Approach 1:
The patent divides the coloring area into two distinct parts: a first colored portion on the top surface of the projecting portion and a second colored portion on the side surface. This segmentation allows each colored portion to be applied independently with relaxed positional accuracy requirements, eliminating the need for extremely precise edge alignment while maintaining enhanced visibility of the mark.
2Illumination intensity
If the colored portion is applied precisely along the edge to enhance three-dimensional appearance, then the visibility is improved, but the manufacturing complexity and precision requirements increase
Solution Approach 1:
The coloring process is segmented into two independent coloring operations: one for the top surface and one for the side surface. This eliminates the need for complex edge-alignment mechanisms and reduces manufacturing process complexity while still achieving enhanced three-dimensional appearance and visibility.
Solution Approach 2:
Different colored portions are applied to different locations (top surface vs. side surface) with potentially different colors or patterns. This local differentiation enhances the three-dimensional appearance without requiring precise edge coloring, as each location has its own optimized coloring characteristics.
Data Source
AI summary
A pneumatic tire comprises a recessed portion or a projecting portion formed on a side portion so as to constitute a mark, and a colored portion formed in at least a part of a periphery along an outer edge of the mark.