Woven Footwear Upper Structure With Localized Stretch and Support
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Solution Overview
Problem
Existing textile articles, such as footwear uppers, lack the ability to provide lightweight, breathable, durable, and customizable stretchability, particularly in specific directions, while maintaining comfort and support.
Innovation Solution
A woven textile structure is formed by interlacing first and second woven layers with resilient, second yarns inserted along an intermediate span, allowing for enhanced stretchability and contraction, and incorporating a support framework with anchor strands for dynamic expansion and contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a woven textile structure uses only first yarns in warp and weft directions, then the structure provides durability and structural integrity, but it lacks sufficient stretchability and adaptability to foot contours
Solution Approach 1:
The textile structure is segmented into multiple functional layers: first woven layers providing structural integrity, and intermediate spans containing second yarns that provide stretchability. This segmentation allows each layer to perform its specialized function while contributing to the overall performance of the textile structure.
Solution Approach 2:
The patent combines different types of yarns (first yarns and second yarns with different elongation properties) into a composite woven textile structure. The first yarns provide durability and structural support, while the second yarns with greater degree of elongation provide stretchability, creating a material that exhibits both properties simultaneously.
2Weight of moving object
If the textile structure is made lightweight and breathable, then comfort is improved, but support and protection may be compromised
Solution Approach 1:
The textile structure divides functions between different layers: first woven layers optimized for lightweight and breathability, and intermediate spans with second yarns providing structural support through their elastic properties. This segmentation enables lightweight construction without sacrificing support capabilities.
Solution Approach 2:
The patent utilizes yarns with different physical parameters, specifically varying degrees of elongation. First yarns have lower elongation for structural stability, while second yarns have higher elongation for stretchability and support. By carefully selecting yarn parameters, the structure achieves both lightweight comfort and adequate support.
3Adaptability or versatility
If uniform stretchability is provided across the entire textile article, then simplicity is maintained, but application-specific stretch requirements at different locations cannot be met
Solution Approach 1:
The patent implements local quality by allowing different regions of the textile structure to have different compositions. Specific locations can incorporate second yarns with greater elongation where stretchability is needed, while other areas maintain only first yarns for structural integrity. This enables location-specific stretchability tailored to application requirements.
Solution Approach 2:
The textile structure is designed to be dynamic rather than static, with the ability to exhibit different mechanical properties at different locations and under different conditions. The incorporation of elastic second yarns allows the structure to adapt its stretch characteristics based on local requirements and applied forces.
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 woven textile structure achieves lightweight breathability, durability, and customizable stretchability, providing enhanced support and comfort by dynamically expanding and contracting in response to load, with a support framework ensuring stability.
Implementation Method 1
the second yarns have a degree of elongation that is greater than the first yarns, the intermediate span is located in between the first and second woven layers, and the second yarns are elongated to an elongated length during the insertion in the weft direction. Each second yarn contracts from the elongated length to a relaxed length after insertion in the weft direction and interlacing with first yarns of the first and second woven layers.
Data Source
AI summary
A woven textile structure is formed by weaving a first woven layer including first yarns and weaving a second woven layer including first yarns, where the woven layers are arranged in a stacked manner and are separated from each other. During the weaving of the first and second woven layers, second yarns are inserted along an intermediate span in the weft direction of the woven textile structure, where the second yarns are elongated to an elongated length during the insertion in the weft direction. First yarns of the first woven layer are interlaced with first yarns of the second woven layer and a second yarn of the intermediate span at a plurality of interlacing locations along the woven textile structure so as to define stitches at each interlacing location, where each stitch joins the first woven layer with the second woven layer.