Tire Traction Elements with Indentations for Snow and Mud
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Solution Overview
Problem
Vehicle tires face challenges in achieving increased traction in snowy and muddy conditions, as existing tread patterns do not effectively trap snow and mud, leading to reduced friction forces compared to snow-on-snow or mud-on-mud contact.
Innovation Solution
The tire incorporates traction elements with indentations in the tread pattern, specifically designed to trap snow and mud within the tread grooves, increasing the surface area for enhanced traction by creating a higher friction interface with the running surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If conventional tread patterns are used, then the tire structure is simple and easy to manufacture, but the friction forces are insufficient in snowy and muddy conditions
Solution Approach 1:
The tread pattern is segmented into multiple elements including circumferential grooves, radial grooves, and blocks with varying depths. This segmentation creates distinct zones for different functions: water evacuation, snow/mud trapping, and traction generation, thereby increasing friction forces through optimized contact mechanisms
Solution Approach 2:
Different regions of the tread pattern are given different local qualities through varying groove depths, widths, and configurations. The circumferential grooves have specific depth ranges to optimize snow/mud retention while radial grooves provide water evacuation pathways, creating locally optimized zones that collectively enhance overall friction performance
2Object-affected harmful factors
If more edges are added to trap snow, then snow trapping capability is improved, but the tread pattern complexity increases
Solution Approach 1:
The tread is divided into multiple blocks with edges and grooves that create numerous snow trapping zones. Each block contributes to overall snow trapping capability through its geometric features, distributing the snow trapping function across multiple segmented elements rather than requiring a single complex structure
Solution Approach 2:
The tread pattern elements serve multiple functions: blocks provide structural support and traction, grooves trap snow and mud, edges create friction points, and the overall pattern enables water evacuation. This multi-functionality allows the same structural elements to achieve snow trapping without proportionally increasing complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tire design significantly enhances traction in snowy and muddy conditions by increasing the friction forces at the interface between the trapped snow/mud and the running surface, resulting in improved tire performance.
Implementation Method 1
snow-on-snow contact typically exhibits greater friction forces than rubber-on-snow contact. It is understood that mud-on-mud contact likewise typically exhibits greater friction forces than rubber-on-mud contact
Data Source
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AI summary
Various embodiments of a tire traction element are provided. In one embodiment, a tire traction element is oriented in a circumferential groove of a tire to provide improved snow and/or mud traction. In one embodiment, a tire for a vehicle is provided, comprising: a tread having a circumferential direction, the tread having at least one circumferential groove which extends in the circumferential direction, the at least one circumferential groove having a groove base, and at least one groove sidewall; a plurality of traction elements in the circumferential groove connected to the at least one groove sidewall and the groove base; wherein at least one of the traction elements has a plurality of indentations formed on a radially outermost edge between the base portion and the at least one sidewall portion; and wherein the radially outermost edge has an angle of inclination θ relative to the radial direction.