Climbing Shoe Textile Upper with Active and Secure Regions
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Solution Overview
Problem
Conventional climbing shoes made from inelastic, stretch-resistant materials compromise breathability and comfort, leading to foot perspiration, slipping, and discomfort due to their tight fit, which is exacerbated by the materials' inability to accommodate varying foot positions and tensions during climbing maneuvers.
Innovation Solution
The design incorporates a textile upper with active and secure regions, featuring elastic stretchability in specific directions to provide comfort, flexibility, and support, utilizing a knitted construction with varying yarn compositions such as polyester, nylon, and hot melt yarn to enhance breathability and fit adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inelastic, stretch-resistant materials are used for the upper, then the shoe provides secure fit and stability, but breathability and comfort deteriorate
Solution Approach 1:
The upper is constructed with different regions having different material properties: secure regions use stretch-resistant materials for stability, while active regions use elastic, breathable materials for comfort and moisture management. This local differentiation resolves the contradiction by providing both secure fit and breathability in appropriate locations.
Solution Approach 2:
The upper combines multiple materials with different properties (elastic materials and stretch-resistant materials) into a single composite structure. This allows the shoe to simultaneously achieve breathability and secure fit by integrating materials that individually provide these opposing characteristics.
2Reliability
If inelastic materials are used for the upper, then the shoe maintains tight fit, but adaptability to varying foot positions deteriorates
Solution Approach 1:
The upper transitions from static, inelastic materials to dynamic, elastic materials in active regions. This allows the shoe to adapt its shape and tension according to the foot's position and movement during climbing, providing both tight fit and adaptability to varying foot positions.
Solution Approach 2:
Different regions of the upper have different elasticity characteristics: secure regions maintain tight fit with stretch-resistant materials, while active regions provide adaptability with elastic materials that respond to foot movement and tension changes.
3Reliability
If stretch-resistant materials are used for the upper, then the shoe provides secure support, but comfort deteriorates due to inability to accommodate foot movement
Solution Approach 1:
The upper differentiates between regions requiring support and regions requiring comfort: secure regions use stretch-resistant materials for support, while active regions use elastic materials for comfort during foot movement and climbing maneuvers.
Solution Approach 2:
The combination of stretch-resistant and elastic materials in the upper creates a composite structure that provides both secure support and comfort, allowing the shoe to accommodate foot movement while maintaining support where needed.
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 solution increases breathability, reduces foot slipping and discomfort, and allows for a more secure fit that accommodates different tension states during climbing, improving overall performance and comfort by integrating elastic stretchability and secure support in key areas.
Implementation Method 1
an active region which is elastically stretchable in at least one direction
Data Source
AI summary
An article of footwear for climbing is disclosed. The article of footwear includes a sole structure including at least an outsole and having a concave shape; and an upper secured to the sole structure. The upper includes a textile including an active region and a secure region, the active region being between a lateral side of the upper and a medial side of the upper at least in an area of the upper at a toe side of an area corresponding to a ball of a foot disposed in the article of footwear. The article of footwear provides for stretchability in the active region and support in the secure region.