All-Season Tire Tread Layout for Braking and Driving Traction
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Solution Overview
Problem
Existing pneumatic tires lack sufficient traction performance during both braking and driving, particularly in all-season conditions.
Innovation Solution
A pneumatic tire design featuring a tread pattern with staggered blocks and grooves, including inclined main and sub-grooves, bridges, slits, and sipes, which enhance block rigidity, water drainage, and snow performance, thereby improving traction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tread pattern with inclined grooves and complex block structures is used to improve traction and water drainage, then traction performance and water drainage are improved, but manufacturing complexity increases
Solution Approach 1:
The tread pattern is divided into multiple functional elements including tread blocks, grooves, sipes, and bridges. Each element serves a specific function (traction, water drainage, structural support) and can be independently designed and manufactured, allowing complex overall performance through modular simple components.
Solution Approach 2:
The tread blocks serve multiple functions simultaneously: they provide traction through their surface geometry, water drainage through integrated grooves and sipes, and structural support through bridge connections. This multi-functionality reduces the need for separate components and simplifies the overall manufacturing process.
Data Source
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AI summary
A pneumatic tire having improved traction performance is provided. A pneumatic tire according to an embodiment has a tread (10) and has a designated direction of rotation. The tread (10) includes a main groove (20, 21) which extends from a side of an equator (CL) toward a side of a ground-contacting end (E1, E2), and which has an inclination with respect to a tire axial direction which is larger on the side of the equator (CL) than the side of the ground-contacting end (E1, E2), and a block (30, 31) which is formed along the main groove (20, 21) and which is placed alternately with the main groove (20, 21) in a tire circumferential direction. On the block (30, 31), an inclined surface (60, 61, 62, 63) which is inclined with respect to an upper surface of the block is formed on a side wall on a front side in a tire rotational direction, among side walls along the main groove (20, 21).