Segmented Snow Sock Thickness Layout for Ice Traction

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Solution Overview

Problem

Snow socks currently waste excess fabric due to the uneven length requirements and lack of effective traction enhancements on ice and snow surfaces, limiting their performance and efficiency.

Innovation Solution

The snow sock design incorporates multiple thickness sections around its circumference, made from various materials, which increase the sock's thickness and traction by attaching or positioning them to enhance grip on ice and snow without wasting leftover fabric, allowing for improved traction and reduced waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If fabric is unwound from rolls to construct snow sock covering, then the covering can be produced, but leftover fabric is wasted because the remaining amount is not long enough to form the necessary circumferential length

Engineering Contradiction:
Improvefabric wasteVSAvoidconstruction process
Core Design Contradiction:
Loss of substanceVSEase of manufacture

Solution Approach 1:

The snow sock covering is divided into multiple covering segments that can be constructed from separate fabric pieces and then joined together. This segmentation allows leftover fabric from different rolls to be utilized in different segments, eliminating the waste problem while maintaining manufacturing simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of discarding leftover fabric that is insufficient for a complete covering, the invention recovers and reuses these remnants by incorporating them as individual covering segments. The leftover fabric is thus transformed from waste into a useful component of the final product.

Inventive Principle:
Principle #34Discarding and recovering

2Reliability

If uniform thickness snow sock is used, then the construction is simple, but the traction performance on ice and snow is limited

Engineering Contradiction:
Improvetraction performanceVSAvoidsnow sock structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The snow sock incorporates thickness sections with different thicknesses at specific locations around the circumference rather than maintaining uniform thickness. These localized variations in thickness provide enhanced traction at critical contact points while keeping the overall structure relatively simple.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The snow sock combines multiple materials with different properties - the covering fabric and the thicker traction-enhancing sections may be made from different materials optimized for their specific functions, creating a composite structure that improves overall performance.

Inventive Principle:
Principle #40Composite materials

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 increased thickness sections enhance traction performance on ice and snow, reducing waste by utilizing leftover fabric and improving vehicle acceleration and grip during initial movement on snowy surfaces.

Implementation Method 1

The increased thickness sections enhance traction performance on ice and snow

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4084973B1Snow cover for tyres
Publication Date: 2024.05.01 MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
  • EP4084973B1 patent drawingFigure 1~2
  • EP4084973B1 patent drawingFigure 3~4
  • EP4084973B1 patent drawingFigure 5~6

AI summary

A snow sock is provided that includes a covering that extends in a circumferential direction. The covering has a thickness and an outer surface. A first thickness section is present and extends along a first arc length, and has a first thickness section inner surface that engages the outer surface of the covering. At least 50% of the first thickness section inner surface engages the outer surface of the covering and/or a first fill element. A second thickness section is also provided and is spaced from the first thickness section. The second thickness section extends in the circumferential direction along a second arc length, and has a second thickness section inner surface that engages the outer surface of the covering. At least 50% of the second thickness section inner surface engages the outer surface of the covering and/or a second fill element.