Tire Sidewall Segmented Blocks for Traction and Cut Resistance
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Solution Overview
Problem
Existing tires with side blocks on rough roads face challenges in balancing traction performance and cut resistance, particularly on the sidewalls, where the current designs with multiple protrusions do not adequately enhance cut resistance.
Innovation Solution
The tire design incorporates a series of side block groups with distinct blocks and grooves arranged in the tire's circumferential and radial directions, where the first, second, third, and fourth blocks are aligned with grooves extending between them, ensuring that at least parts of the first and fourth blocks are outside the second block in the radial direction, enhancing both traction and cut resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple protruded parts are provided on the side surface, then traction performance is improved, but cut resistance property is insufficient
Solution Approach 1:
The side block is divided into multiple protruded parts (first protruded part, second protruded part, third protruded part) arranged in the tire circumferential direction. These segmented structures work together to provide both traction performance through contact with the road surface and cut resistance by distributing mechanical stresses across multiple elements rather than a single solid block
Solution Approach 2:
Different regions of the side block are designed with different characteristics: the protruded parts provide local traction enhancement, while the grooves between them provide local stress distribution and flexibility. This local differentiation allows the side block to simultaneously achieve traction performance and cut resistance property
2Strength
If a solid side block is provided, then cut resistance is improved, but traction performance deteriorates
Solution Approach 1:
Rather than using a solid side block, the invention segments it into multiple protruded parts separated by grooves. This segmentation maintains cut resistance through the overall solid structure while improving traction by creating multiple contact points with the road surface
Solution Approach 2:
The side block structure extends in multiple dimensions: protruding radially outward for traction contact, and extending in the circumferential direction with multiple segments. This multi-dimensional arrangement allows simultaneous achievement of cut resistance (through radial strength) and traction performance (through circumferential contact distribution)
Data Source
AI summary
The tire is provided which has secured a traction performance in the side surface of the tire while showing a cut resistance property on the side surface of the tire. The tire includes a side block arranged on a side surface of the tire. The side block includes: a first block 11 formed on the side surface, the first block protruded from a tire surface 5 at a first height; a second block 12 formed on the side surface, the second block protruded from the tire surface at a second height different from the first height; a third block 13 formed on the side surface, the third block protruded from the tire surface at a third height different from the second height; and a fourth block 14 formed on the side surface, the fourth block protruded from the tire surface at a fourth height different from the third height.