Motorcycle Tire Tread Block Arrangement for Rough Terrain
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Solution Overview
Problem
Motorcycle pneumatic tires face challenges in achieving both traction performance and cornering gripping performance, especially on rough terrain.
Innovation Solution
The tire design features wide and narrow blocks arranged on the tread surface, with specific ratios and configurations to optimize edge component and rigidity, ensuring both traction and cornering capabilities. The blocks are positioned in central and intermediate regions with defined proportions and phases to enhance performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blocks are arranged to enhance edge component, then rigidity decreases
Solution Approach 1:
The patent enhances edge component locally in the intermediate regions through narrow blocks positioned to provide lateral stability during cornering. The central region maintains broader blocks for overall structural rigidity. This localized enhancement of edge component prevents overall rigidity degradation while improving cornering performance.
Data Source
AI summary
Disclosed is a motorcycle pneumatic tire comprising a plurality of blocks arranged on a tread surface, wherein: a plurality of wide blocks, each having a tire widthwise length larger than a tire circumferential length, are formed in at least a central region and intermediate regions, and a plurality of narrow blocks, each having a smaller tire widthwise length than each of the wide blocks, are formed in at least the intermediate regions; and the following relations are satisfied: 1.5≤W1/L1≤4.0 . . . (A), 0.5≤W2/L2≤1.5 . . . (B), 0.3≤S1M/S1≤0.6 . . . (C), and 0.5≤S2M/S2≤1.0 . . . (D).