Grasp-Resistant Apparel Panels Using Differential Elongation
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Solution Overview
Problem
Conventional athletic jerseys are loose-fitting to accommodate various body types, but this design exposes material that can be grabbed by opponents during gameplay, and custom tailoring for each player is time-consuming and costly.
Innovation Solution
A composite textile with a first stretchable layer and a second non-stretch layer, where the second layer is discontinuous and includes apertures for airflow, restricting elongation at panel locations while allowing expansion in non-paneled areas, providing grasp resistance and improved breathability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a loose-fitting jersey is used to accommodate various body types, then the garment allows free movement of arms and body, but it exposes loose material that can be grabbed by opponents
Solution Approach 1:
The jersey is divided into multiple panels with varying degrees of stretchability. The first panel has high stretchability for comfort and movement, while the second panel has low stretchability to prevent grasping. This segmentation allows different regions of the garment to serve different functions simultaneously.
Solution Approach 2:
Different portions of the jersey are assigned different mechanical properties. The first panel is designed to be highly elastic for comfort and movement freedom, while the second panel is designed to be non-elastic or low-elasticity to resist grasping. This local differentiation resolves the contradiction by making each region optimal for its specific purpose.
2Object-affected harmful factors
If an ultra-tight-fitting jersey is custom tailored for each player to prevent grasping, then grasp resistance is improved, but the process becomes time-consuming and costly
Solution Approach 1:
The jersey design provides universal applicability across different body types and players through a single standardized pattern with multiple panels of varying stretchability. This eliminates the need for individual custom tailoring while maintaining effective grasp resistance, thereby saving time and reducing costs.
Solution Approach 2:
The invention changes the stretchability parameter of different panels to create a universal design that works for various body types. By using panels with different elastic properties rather than custom tailoring, the system achieves grasp resistance without the time and cost penalties of individual customization.
3Object-affected harmful factors
If a composite textile with non-stretch panels is used to restrict elongation and prevent grasping, then grasp resistance is improved, but the garment may reduce flexibility and movement range
Solution Approach 1:
The jersey is segmented into multiple panels where only specific panels (the second panel) have restricted stretchability to prevent grasping, while other panels (the first panel) maintain high stretchability for movement. This segmentation ensures that flexibility is preserved in areas where it is needed while grasp resistance is achieved in areas where it is most effective.
Solution Approach 2:
The non-stretch or low-stretch property is applied locally only to the second panel, while the first panel maintains high elasticity. This local quality differentiation allows the garment to provide both grasp resistance and flexibility simultaneously, as each region is optimized for its specific functional requirements.
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 allows the garment to fit multiple body types, accommodate safety equipment, and restrict opponents from grasping, while maintaining flexibility and breathability, enhancing athletic performance by preventing unwanted grabbing and regulating body temperature.
Implementation Method 1
The first layer possesses a first degree of elongation. The second layer possesses a second degree of elongation that is less than the first degree of elongation.
Data Source
AI summary
An article of apparel with grasp-resistant panels includes a multilayer textile having a first textile and a second textile layer coupled to the first textile layer. The first textile layer possesses a first elongation value and the second textile layer possesses a second elongation value, the first elongation value being greater than the second elongation value. The second textile layer includes air vents integrally formed into the layer.