Footwear Sole Assembly with Interchangeable Units
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Solution Overview
Problem
Existing footwear designs lack versatility in sole assemblies that can provide different performance properties while maintaining a common exterior appearance, limiting user options for customized fit and functionality.
Innovation Solution
The design incorporates a sole assembly with destructibly removable layers and a fixed sole structure that can receive interchangeable removable sole units, allowing for varied cushioning and support properties without altering the exterior appearance, with each sole assembly specifically intended for one foot to ensure proper fit and function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed sole assembly is used in footwear, then the exterior appearance is consistent and simple, but the performance properties and functionality are limited
Solution Approach 1:
The sole assembly is divided into a fixed sole structure and interchangeable removable sole units. The fixed sole structure includes a recess that receives different removable sole units, each providing different performance properties (cushioning, support, traction). This segmentation allows the footwear to have varied performance while maintaining a consistent exterior appearance from the upper portion.
Solution Approach 2:
The fixed sole structure serves multiple functions: it provides the basic structural support, maintains the consistent exterior appearance, and acts as a universal platform that can accommodate different removable sole units. This multi-functionality resolves the contradiction by allowing one component to handle appearance consistency while another handles performance variation.
2Adaptability or versatility
If interchangeable removable sole units are added to provide different performance properties, then the versatility and customized fit are enhanced, but the device complexity increases
Solution Approach 1:
The sole assembly is segmented into a fixed sole structure and interchangeable removable sole units. Each removable sole unit can be independently selected and attached to the fixed sole structure, providing customized fit and functionality without permanently complicating the overall structure. The segmentation allows for simple assembly and disassembly while maintaining versatility.
3Ease of operation
If the sole assembly is made with destructibly removable layers, then the ease of operation and customization are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The sole assembly is divided into separable components (fixed sole structure and removable sole units) that can be easily attached and detached. The segmentation is designed with a recess-fit mechanism that provides secure attachment during use but allows for deliberate removal, balancing ease of operation with manufacturing precision requirements.
Solution Approach 2:
The fixed sole structure is pre-formed with a recess that precisely accommodates the removable sole units. This preliminary preparation of the recess ensures that when the removable sole units are attached, they fit securely without requiring complex assembly procedures, thus easing operation while maintaining manufacturing precision.
Data Source
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AI summary
A first and second pair of articles of footwear which may have substantially similar exterior appearances, but the internal structures are different. The first pair of articles may comprise a traditional sole assembly having an outsole, a midsole, and an insole. The second pair of articles of footwear comprises a fixed sole structure allowing for a customizable removable sole insert.