Footwear Upper Tie Structure for Adjustable Fit
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Solution Overview
Problem
Conventional footwear uppers lack flexibility and breathability, which can lead to discomfort and inadequate fit, especially in athletic footwear where dynamic support and moisture management are crucial.
Innovation Solution
The use of a knitted component for the upper, which incorporates varying yarn materials and knit structures to provide elasticity, breathability, and moisture absorption, combined with a base portion for enhanced rigidity and support, secured via a tie structure that allows for adjustable fit and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional upper structure is used, then the footwear provides basic support, but it lacks flexibility and breathability leading to discomfort
Solution Approach 1:
The upper is divided into multiple portions (first portion, second portion, third portion) with different material properties and functions. The first portion uses knitted material for flexibility and breathability, while the second and third portions use woven material for support and structure, allowing each segment to optimize its specific function
Solution Approach 2:
Different regions of the upper are assigned different material characteristics: the first portion (ankle area) uses flexible knitted material, while the second and third portions (midfoot and forefoot) use supportive woven material, creating local optimization of properties throughout the upper structure
2Object-affected harmful factors
If a knitted component is used for the upper, then breathability and moisture absorption are improved, but structural rigidity and support may be reduced
Solution Approach 1:
The upper is segmented into portions with different material types: the first portion uses knitted material for breathability and moisture absorption, while the second and third portions use woven material for structural support, allowing each segment to fulfill its specific function optimally
Solution Approach 2:
The upper combines different material types (knitted and woven) within the same structure, creating a composite construction where knitted portions provide breathability and woven portions provide structural support, achieving both properties simultaneously
3Adaptability or versatility
If a lacing system is incorporated to adjust fit, then adaptability is improved, but device complexity increases
Solution Approach 1:
The tie structure serves multiple functions: it provides adjustable fit, allows foot entry and removal, and creates the void shape within the upper. This multi-functionality reduces the need for separate components, thereby reducing overall system complexity while maintaining adaptability
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 knitted component offers a snug, comfortable fit with adjustable tension, while the base portion provides medial-to-lateral support, enhancing the overall performance and durability of the footwear.
Implementation Method 1
The upper may include a knitted component (110)
Implementation Method 2
The use of a knitted component for the upper, which incorporates varying yarn materials and knit structures to provide elasticity
Data Source
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AI summary
An upper may be included with an article of footwear. The upper may include a textile portion, the textile portion forming a throat area of the upper. The upper may further include a base portion, the base portion extending to a biteline area of the upper. The upper may further include a tie structure, the tie structure extending through a first opening of the textile portion and a second opening of the base portion to secure the textile portion to the base portion.