3D Tire Sipe Structure to Prevent Closure Under Load
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Solution Overview
Problem
Conventional 3D sipes in tires face deformation under dynamic loading, leading to complete closure and poor wet performance, compromising traction and stability.
Innovation Solution
Incorporation of zig-zag shaped 3D sipes with protrusions and recesses, and projections between them, to maintain interlocking and prevent complete closure under load, enhancing tread block rigidity and traction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional 3D sipes are used in tires, then the tire provides basic traction and grip, but the sipes deform under dynamic loading and close completely under full load, leading to poor wet performance
Solution Approach 1:
The sipe is divided into multiple segments with protrusions and recesses that interlock, preventing complete closure under load while maintaining structural integrity and traction performance
Solution Approach 2:
The sipe structure is extended from a simple planar cut to a three-dimensional configuration with protrusions and recesses, adding vertical dimensionality that prevents closure while maintaining surface area for traction
2Reliability
If zig-zag shaped 3D sipes with protrusions and recesses are incorporated, then sipe interlocking is maintained and closure is prevented under load, but the manufacturing complexity increases
Solution Approach 1:
The sipe is divided into multiple segments with protrusions and recesses that interlock, preventing complete closure under load while maintaining structural integrity and traction performance
Solution Approach 2:
The sipe structure is extended from a simple planar cut to a three-dimensional configuration with protrusions and recesses, adding vertical dimensionality that prevents closure while maintaining surface area for traction
Data Source
AI summary
The present subject matter relates to 3D sipes that are disposed of laterally in one or more tread blocks of a tire. Each of the one or more 3D sipes of the tire has a zig-zag shape in radial, lateral, and circumferential directions. Each of one or more 3D sipes also has a protrusion and a recess The 3D sipes improve the overall steering stability performance of the tire in harsh conditions.