Sock Anti-slip Off Structure with Segmented Compression
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Solution Overview
Problem
Conventional socks often slip down the leg due to improper fitting and excessive compression from elastic bands, causing discomfort and aesthetic issues.
Innovation Solution
A sock design featuring a calf portion divided into an elastic section and a controlled compression section with varying compression rates, where the elastic section is a single-layer knit and the controlled compression section is a double-layer knit with three zones of decreasing compression, ensuring secure fit without excessive pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an elastic band is knitted under the top rim to prevent socks from slipping off, then the sock fit is improved, but excessive compression is created on the legs interfering with normal blood circulation
Solution Approach 1:
The calf portion is divided into two distinct sections: an elastic section with higher compression rate and a controlled compression section with lower, graduated compression rate. This segmentation allows the sock to provide anti-slip functionality through the elastic section while the controlled compression section prevents excessive compression on the leg, thus resolving the contradiction between fit stability and harmful compression effects.
Solution Approach 2:
Different compression rates are applied to different zones of the calf portion. The elastic section located below the controlled compression section provides higher compression for anti-slip effect, while the controlled compression section provides graduated compression (highest at bottom, lowest at top) to avoid interfering with blood circulation. This local differentiation of compression quality resolves the contradiction between preventing slips and avoiding excessive compression.
2Object-affected harmful factors
If the elastic band is made too loose to reduce compression on legs, then blood circulation is improved, but the calf portion of the sock slips off while wearing
Solution Approach 1:
The calf portion is segmented into an elastic section and a controlled compression section. The elastic section provides sufficient compression to prevent slipping, while the controlled compression section maintains lower compression rates to avoid restricting blood circulation. This segmentation resolves the contradiction between maintaining sock position and preserving blood circulation.
Solution Approach 2:
The compression rate parameter is differentiated between sections: the elastic section has a higher compression rate for anti-slip functionality, while the controlled compression section has a lower, graduated compression rate that does not restrict blood flow. This parameter differentiation resolves the contradiction between slip prevention and circulation maintenance.
3Ease of manufacture
If a single-layer knit is used for the elastic section, then the sock is easier to manufacture and more flexible, but it may not provide sufficient compression control
Solution Approach 1:
The sock is segmented into a single-layer elastic section and a double-layer controlled compression section. The single-layer construction simplifies manufacturing of the elastic section, while the double-layer construction in the controlled compression section enables precise compression control. This segmentation resolves the contradiction between manufacturing ease and compression precision.
Solution Approach 2:
Different knitting structures are applied to different sections: single-layer knit for the elastic section providing flexibility and ease of manufacture, and double-layer knit for the controlled compression section providing precise compression control. This local differentiation of structural quality resolves the contradiction between manufacturing simplicity and compression precision.
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 sock remains in place above the ankle with minimal discomfort, maintaining blood circulation and preventing slipping while maintaining a comfortable and aesthetically pleasing fit.
Implementation Method 1
The elastic section has a higher compression rate than the controlled compression section. The compression rate in the controlled compression section is highest at the bottom and lowest at the top.
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to clothing accessories and in particular to a sock with an anti-slip off structure, which will find application in the clothing and fashion industries. The sock includes a sole portion (1). A toes portion (2) is formed in the front part of the sole portion (1), and on the backside of the sole portion (1) there is a heel portion (3). The sole portion (1) is extended above the heel portion (3) at an angle to calf portion (4). A top rim (5) is formed above the calf portion (4) of the sock. In order to achieve a gradual decreasing compression rate, according to the present invention, an elastic section (4.1) and a controlled compression section (4.2) are formed on the calf portion (4). The elastic section (4.1) has a higher compression rate than the controlled compression section (4.2). The elastic section (4.1) and the controlled compression section (4.2) during wearing prevent the calf portion (4) of the sock from slipping down the calf, towards the ankle of the user.