Directional Tire Tread Groove Structure for Winter Braking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pneumatic vehicle tires face challenges in balancing braking performance and drainage properties, particularly in winter conditions, where improving braking performance often compromises drainage efficiency.
Innovation Solution
The design incorporates base elevations in transverse grooves with inclined cover surfaces that provide greater support to the incoming block edge, stiffening this area while maintaining effective drainage by concentrating the stiffening effect and minimizing rubber volume, thereby enhancing braking performance without significantly affecting drainage capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If base elevations with inclined cover surfaces are added to transverse grooves to stiffen the incoming block edge, then braking performance is improved, but the complexity of the tread structure increases
Solution Approach 1:
The base elevation with inclined cover surface is applied locally only at specific transverse grooves where incoming block edges are located, rather than uniformly across the entire tread. This localized application provides targeted stiffening exactly where braking forces are most effective, while avoiding unnecessary complexity in other areas of the tread pattern.
Solution Approach 2:
The cover surface of the base elevation is inclined at an acute angle relative to the tread periphery, creating an asymmetric structure that is specifically oriented to support the incoming block edge. This asymmetric design provides optimal mechanical support during braking while maintaining drainage capability, resolving the contradiction between structural reinforcement and complexity.
2Strength
If the cover surface is inclined at an acute angle to concentrate the stiffening effect, then braking performance improves, but manufacturing precision requirements increase
Solution Approach 1:
The cover surface is designed with a specific acute angle inclination parameter that optimizes the stiffening effect. By carefully selecting this angular parameter, the design achieves maximum structural support for the incoming block edge while maintaining feasibility for standard manufacturing processes. The acute angle creates an efficient load path that concentrates support where needed without requiring extreme precision.
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The invention relates to a pneumatic vehicle tyre comprising a directional tread having at least one row of tread blocks (1) with tread blocks (3) which are separated from one another by transverse grooves (4) and which have an incoming block edge (6a), that enters the underlying surface first as the tyre rolls during forward travel (R), and an outgoing block edge (6b) on each of the adjacent transverse grooves (4), each transverse groove (4) having groove walls (4a, 4b) extending from the block edges (6a, 6b), and transverse grooves (4) being provided in each of which at least one base raised portion (7) is formed which reaches up to both groove walls (4a, 4b) and which is delimited in the radial direction by a cover surface (8) that is inclined at an acute angle (δ) relative to the periphery of the tread in the cross-section of the transverse groove (4). The cover surface (8) of the base raised portion (7) is inclined relative to the periphery of the tread in such a way that the transverse groove (4) has, in the region of the cover surface (8), a depth (tG) determined in the radial direction that increases continuously from the groove wall (4a) extending from the incoming block edge (6a) to the groove wall (4b) extending from the outgoing block edge (6b).