Integral Footwear Upper and Sole Assembly
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Solution Overview
Problem
Existing footwear manufacturing methods are limited by their configuration and assembly complexity, requiring either extensive effort for multi-piece assembly or lacking ease of assembly in one-piece designs.
Innovation Solution
An article of footwear with an integral upper and sole is provided in a flat configuration, allowing for easy assembly by folding and joining the layers using various attachment methods such as adhesive, heat, pressure, stitching, or interlocking fasteners, enabling customers to assemble the footwear themselves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If footwear is manufactured in a multi-piece configuration, then manufacturing flexibility and design versatility are improved, but assembly complexity and customer effort increase
Solution Approach 1:
The footwear upper is segmented into multiple layers (exterior layer, interior layer, heel portion) that are provided separately but designed to be easily assembled together, maintaining design versatility while simplifying the assembly process through pre-configured attachment mechanisms
Solution Approach 2:
Attachment mechanisms (adhesives, fasteners, interlocking structures) are pre-applied or pre-configured on the layers during manufacturing, so that customers only need to perform simple assembly actions rather than complex manufacturing processes
2Ease of operation
If footwear is manufactured in a one-piece configuration, then assembly ease is improved, but manufacturing complexity and customization flexibility are reduced
Solution Approach 1:
The footwear is provided as multiple layers that appear separate but are designed to be easily joined, giving the simplicity of one-piece assembly while allowing manufacturing flexibility and customization through separate layer production
Solution Approach 2:
Multiple layers are combined into a unified footwear structure through simple attachment mechanisms that create an integrated final product, achieving the ease of one-piece footwear while maintaining manufacturing versatility
3Strength
If traditional footwear manufacturing methods are used, then structural integrity is maintained, but assembly time and customer effort increase
Solution Approach 1:
Attachment mechanisms are pre-configured during manufacturing (adhesives applied, fasteners positioned, interlocking structures formed) so that field assembly requires minimal time and effort while maintaining full structural integrity
Solution Approach 2:
Traditional complex mechanical assembly processes are replaced with simpler attachment mechanisms such as adhesives, magnetic fasteners, or interlocking structures that maintain structural strength while dramatically reducing assembly time
Data Source
Figure 1
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AI summary
An article of footwear comprises an interior layer and an exterior layer connected to the interior layer. The interior layer and the exterior layer are cut in a pattern forming an integral upper portion and sole portion. The exterior layer comprises an outer material and a structural overlay disposed over the outer material. The structural overlay comprises at least a first material and a second material, wherein the first material and second material have different levels of durability. The structural overlay has a first opening that exposes a first portion of the outer material in the upper portion. The first material comprises a ground engaging portion having a tread pattern adjacent to the first opening.