Tyre Sidewall Pattern for Masking Deformations
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Solution Overview
Problem
Existing tire manufacturing processes result in sidewall deformations due to overlapping carcass plies, which are difficult to mask aesthetically and efficiently, and current solutions are complex and costly, affecting consumer perception.
Innovation Solution
A tire sidewall pattern featuring recessed spherical elements with angular openings less than or equal to 70°, connected below the average surface, providing uniform light reflection and enhanced durability against friction, while maintaining a uniform appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If moiré patterns are used to mask sidewall deformations, then the aesthetic appearance is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces complex moiré pattern manufacturing with a simpler debossed element pattern that can be produced more economically. The debossed elements create a textured surface that masks deformations without requiring the complex interference pattern generation of moiré effects, thereby reducing manufacturing complexity while maintaining aesthetic improvement.
Solution Approach 2:
The patent uses debossed elements that replicate a spherical geometry pattern on the sidewall surface. This copied geometric pattern creates light scattering effects that mask the underlying deformations, providing a simpler alternative to the complex moiré pattern copying process while achieving similar aesthetic masking results.
2Shape
If complex moiré patterns are applied to mask deformations, then aesthetic appearance improves, but manufacturing cost increases
Solution Approach 1:
The patent employs debossed elements with spherical geometry that can be manufactured more cheaply than complex moiré patterns. These simpler geometric elements require less sophisticated manufacturing equipment and processes, directly reducing production costs while still achieving the aesthetic masking of sidewall deformations through light scattering.
3Shape
If the pattern provides broad viewing angle coverage, then aesthetic appearance is improved for most consumers, but the pattern complexity increases
Solution Approach 1:
The patent uses debossed elements with spherical geometry that inherently provide omnidirectional light scattering properties. The spherical shape ensures that light is scattered uniformly in all directions, providing effective masking from broad viewing angles without requiring complex pattern arrangements. This geometric simplicity achieves wide-angle coverage while minimizing pattern 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 pattern effectively masks sidewall deformations by uniform light reflection, improving aesthetics and durability, and is simpler and less costly to implement, reducing consumer visibility of defects and enhancing tire robustness.
Implementation Method 1
The light rays coming from the same light source which illuminate the sidewall of the tire are thus substantially deflected in the same way on the pattern... The pattern effectively masks sidewall deformations by uniform light reflection
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a tyre made of rubber material, including a sidewall (3) and a pattern (5) formed in said sidewall (3), said sidewall extending along a mean surface (10). The pattern (5) includes a plurality of hollow elements (7), said hollow elements (7) being shaped like of sphere portions. The hollow elements (7) are connected to one another at connection areas (11), said connection areas (11) extending below the mean surface (10) of the sidewall and, in a cross-section view, all or part of the hollow elements (7) comprise an angular opening (α) that is no greater than 70°.