Tyre Sidewall Mark With Inclined Edging And Main Portions
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Solution Overview
Problem
Conventional tyre marks on the sidewall have a monotonous appearance and insufficient contrast due to constant height, which limits their legibility.
Innovation Solution
The tyre features a mark indicating portion with an inclined edging portion and a mark main portion on a reference surface, where the surface of the edging portion increases in height from one side to the other in the tyre radial direction, and the mark main portion surface decreases in the opposite direction, with small protruding portions such as truncated conical or rib-shaped protrusions to enhance contrast and stereoscopic effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If marks are formed with constant height on the sidewall portion, then the manufacturing process is simple, but the appearance is monotonous and legibility is insufficient
Solution Approach 1:
The mark is divided into different portions (edging portion and mark main portion) with different surface inclinations. The edging portion has a surface inclined in one direction while the mark main portion has a surface inclined in the opposite direction, creating local variations in surface quality that enhance legibility without complicating the overall manufacturing process
Solution Approach 2:
The mark structure employs asymmetric surface inclinations where the edging portion and mark main portion are inclined in opposite directions relative to the reference surface. This asymmetric design creates a more visually striking appearance and improves contrast, thereby enhancing legibility while maintaining manufacturing feasibility
2Device complexity
If marks are formed with constant height and ridges, then the manufacturing process is simple, but the appearance remains monotonous with little contrast change
Solution Approach 1:
The mark structure employs asymmetric surface inclinations where the edging portion and mark main portion are inclined in opposite directions relative to the reference surface. This asymmetric design creates a more visually striking appearance and improves contrast, thereby enhancing legibility while maintaining manufacturing feasibility
Solution Approach 2:
The invention introduces surface inclination as an additional dimensional feature beyond simple height variation. By inclining the surfaces of the edging portion and mark main portion in opposite directions, the design adds visual depth and dimensionality, creating a more varied and engaging appearance without significantly increasing structural complexity
Data Source
AI summary
One or more marks provided on a reference surface has an edging portion forming an outer edge of the or each mark and a mark main portion arranged inside the edging portion. A surface of the edging portion is inclined with respect to the reference surface in a direction in which a height thereof from the reference surface increases from one side to the other side in a tyre radial direction. A surface of the mark main portion is inclined with respect to the reference surface in an opposite direction to the surface of the edging portion.