High-Friction Knitted Toe Lock Band for Sock Slippage
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Solution Overview
Problem
Socks often slip or shift during movement, causing discomfort and reducing athletic performance by interfering with the ability to comfortably and efficiently run or jump.
Innovation Solution
A sock with an integrally-knitted Toe Lock loop or band, made of High-Friction Low-Slippage yarn, is designed to stabilize the toes-covering region and prevent sideways and forward slippage by encircling around the toes-base area, using a unique knitting structure that enhances friction and limits movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional sock is used, then the sock is simple and comfortable, but the sock slips or shifts during movement
Solution Approach 1:
The sock is divided into distinct functional regions: a standard knitted body and a specialized Toe Lock component. This segmentation allows the toe region to have enhanced stability features while the rest of the sock maintains conventional comfort properties.
Solution Approach 2:
The Toe Lock component uses High-Friction Low-Slippage yarn specifically in the toe region where stability is needed, while the rest of the sock uses standard yarn. This localized application of special properties provides stability where required without compromising overall comfort.
2Reliability
If the sock uses standard yarn throughout, then the manufacturing is simple, but the friction is insufficient to prevent slippage
Solution Approach 1:
High-Friction Low-Slippage yarn is used exclusively in the toe region where friction is needed to prevent slippage, while standard yarn is used elsewhere. This localized approach provides enhanced friction resistance where required without unnecessarily complicating the overall manufacturing process.
Solution Approach 2:
The sock is segmented into different yarn types: High-Friction Low-Slippage yarn for the toe Lock component and standard yarn for the body. This segmentation allows optimized friction properties in the critical toe area while maintaining ease of manufacture through limited yarn variety.
3Reliability
If the toe region is made more stable, then slippage is reduced, but the sock may feel restrictive
Solution Approach 1:
The Toe Lock component is designed to be dynamically adaptive - it provides stability to prevent slippage during movement while maintaining flexibility and comfort during normal wear. The knitted structure with High-Friction Low-Slippage yarn creates friction points that prevent sliding without restricting natural foot motion.
Solution Approach 2:
The enhanced stability features are localized only to the toe region through the Toe Lock component, while the rest of the sock maintains conventional flexibility and comfort properties. This localized approach provides stability where needed without making the entire sock feel restrictive.
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 Toe Lock loop effectively prevents sock slippage, maintaining contact with the toes, absorbing sweat, and enhancing athletic performance by providing stable footwear.
Implementation Method 1
The first yarn has a first friction coefficient relative to human body; the second yarn has a second friction coefficient relative to human body; the first friction coefficient is greater than the second friction coefficient by at least 25 percent
Data Source
AI summary
A sock for covering at least a foot of a human wearer includes: a knitted toes-covering fabric-region, configured to cover toes of the foot; a knitted sole-covering fabric-region, configured to cover a sole of the foot; and a knitted toes-region stabilizing component, located between the knitted toes-covering fabric-region and the knitted sole-covering fabric-region. The knitted toes-region stabilizing component is configured to stabilize, and to prevent shifting or slippage of, the knitted toes-covering fabric-region in response to body movements. The knitted toes-region stabilizing component is a knitted band that is formed of a first yarn which is a High-Friction Low-Slippage yarn; the knitted toes-covering fabric-region and the knitted sole-covering fabric-region are knitted of a second, different, yarn. The first yarn has a first friction coefficient relative to human body; the second yarn has a second friction coefficient relative to human body; the first friction coefficient is greater than the second friction coefficient by at least 25 percent.