Shoe Upper Weld Zoning for Lightweight Structural Support
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Solution Overview
Problem
The increasing number of material elements in shoe uppers leads to higher mass, waste, and manufacturing complexity, while reducing the number of elements decreases recyclability and increases costs.
Innovation Solution
Implementing multiple welds in selected locations on the shoe upper to provide structure and support, replacing additional materials or strapping, and incorporating unwelded flex zones for flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple material elements are used to form the shoe upper, then support and structure are improved, but mass and manufacturing complexity increase
Solution Approach 1:
The patent merges multiple material elements into a single integrated upper structure formed from a single sheet of material. The weld zones create integrated structural regions that provide support and structure without requiring separate material elements, thereby reducing mass while maintaining strength.
Solution Approach 2:
The patent segments the upper into distinct zones (weld zones, unwelded zones, eyelet portions) within a single material sheet. This segmentation provides localized support and structure where needed through welding while keeping the overall structure lightweight and reducing manufacturing complexity.
2Strength
If multiple material elements are used to form the shoe upper, then support and structure are improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple material elements into a single integrated upper formed from one sheet of material. This merging reduces the number of separate components that need to be transported, stocked, cut, and joined, thereby reducing manufacturing complexity while maintaining structural support through weld zones.
3Weight of stationary object
If the number of material elements is decreased, then mass and waste are reduced, but recyclability decreases
Solution Approach 1:
The patent uses a single sheet of material with uniform composition throughout the upper structure. This homogeneity, achieved by forming the entire upper from one material sheet with integrated weld zones, reduces mass while maintaining recyclability because the uniform material can be more easily processed and recycled compared to multi-material constructions.
4Strength
If weld zones are added to provide structure, then support is improved, but manufacturing complexity increases
Solution Approach 1:
The patent replaces traditional mechanical fastening methods (stitching, adhesives, multiple material layers) with welding technology. The welding process creates strong structural bonds through thermal fusion, providing support while simplifying manufacturing by eliminating the need for separate fastening components and processes.
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
Reduces shoe mass and manufacturing complexity, enhances recyclability, and maintains support and comfort by using welds to mimic the function of additional materials, while allowing flexibility where needed.
Implementation Method 1
multiple weld zones, multiple unwelded zones... The welds may be selectively located on the upper to provide structure and support to the selected locations
Data Source
AI summary
A shoe having a shoe upper including multiple welds in selected locations on the shoe upper. The welds may be selectively located on the upper to provide structure and support to the specific portions of a shoe upper.