Compression Sock Arch Support via Segmented Knit Zones
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Solution Overview
Problem
Conventional socks fail to effectively maintain the normal shape of the longitudinal and transverse plantar arches formed by the bones, ligaments, and plantar muscles of the foot, leading to inadequate shock absorption and increased risk of foot injuries due to slipping compression areas.
Innovation Solution
A sock design featuring multiple compression areas strategically positioned to provide compressive force in specific directions, utilizing a knit structure with increased expandability and rubber yarns to securely maintain the arch shape without slipping, including a first compression area behind the toe, a second at the toe area periphery, a third at the ankle, and a fourth from the arch to the instep, ensuring continuous compressive force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional socks are used, then the sock structure is simple, but the compression area slips and fails to maintain arch shape
Solution Approach 1:
The sock is divided into multiple functional compression areas (first compression area at the heel, second compression area at the midfoot, third compression area at the forefoot) with different compressive force characteristics. Each area is independently designed to address specific arch support needs, preventing slippage through distributed compression points rather than a single continuous compression zone.
Solution Approach 2:
Different regions of the sock are assigned different compressive force levels and directional characteristics. The first compression area provides strong heel stability, the second compression area maintains midfoot arch shape, and the third compression area supports forefoot alignment. This localized differentiation ensures each area performs its specific function optimally without compromising overall positioning stability.
2Reliability
If multiple compression areas are added to maintain arch shape, then arch support improves, but the sock structure becomes complex
Solution Approach 1:
The multiple compression areas are integrated into a single continuous knitted sock structure rather than separate components. The first, second, and third compression areas are seamlessly connected through the sock's knit fabric, allowing multiple functional zones to work together as a unified system without requiring separate elements or complex assembly.
Solution Approach 2:
The compressive force parameters vary across different areas of the sock. The first compression area exerts force primarily in the vertical direction to support the heel, the second compression area applies force in both vertical and horizontal directions to maintain the midfoot arch, and the third compression area provides forward-directed compression to stabilize the forefoot. This parameter differentiation achieves superior arch support through a relatively simple continuous structure.
3Reliability
If compression force is increased to restore arch shape, then arch restoration improves, but blood circulation may be affected
Solution Approach 1:
The compressive force is locally optimized for each foot region rather than applying uniform high compression throughout. The first compression area at the heel provides strong vertical support for arch restoration, while the second and third compression areas provide graduated compression that maintains arch shape without excessive force that would impede blood flow in the forefoot and instep regions.
Solution Approach 2:
The compressive force parameters are differentiated by location and direction. Each compression area applies force in specific directions (vertical, horizontal, or diagonal) with varying magnitudes tailored to the anatomical needs of each region. This parameter optimization achieves effective arch restoration while maintaining blood circulation through strategically reduced compression in critical vascular areas.
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 effectively protects and restores the shape of both longitudinal and transverse plantar arches, preventing slipping and enhancing shock absorption, thereby reducing foot fatigue and the risk of injuries while maintaining comfort and preventing blood circulation issues.
Implementation Method 1
utilizing a knit structure with increased expandability and rubber yarns to securely maintain the arch shape without slipping
Implementation Method 2
a first compression area which raises the compressive force in a wale direction from a position behind a toe area of a sole portion of the sock to a position which includes the boundary between an arch portion and a heel portion
Data Source
AI summary
A sock is provided having a first compression area 1 which raises the compressive force in a wale direction from a position A behind the toe area of a sole portion of the sock to a position C which includes the boundary between an arch portion B and a heel portion 6, a second compression area 2 provided on the periphery to raise the compressive force in a course direction at the position A behind the toe area, a third compression area 3 provided on the periphery to raise the compressive force in a course direction at an ankle portion D, and a fourth compression area 4 provided on the periphery to raise the compressive force in a course direction from the position C which includes the boundary between the arch portion B and the heel portion 6 to a position E at the base of the instep portion. The advantageous effect of protecting and restoring the shape of the longitudinal plantar arch is produced by the various compression areas, thereby stabilizing the position of the various compression areas while the sock is worn.