Undulating Footwear Sole with Support Element
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Solution Overview
Problem
Conventional footwear often lacks adequate cushioning and support, leading to soreness, fatigue, and increased risk of injury from impact forces during daily activities, as it fails to complement the natural cushioning and rebounding capabilities of the human foot effectively.
Innovation Solution
An article of footwear featuring an undulating foam sole with spaced apart peaks and troughs, providing gaps devoid of material between them, which allows for compressive and shear force absorption through buckling and distortion of the midsole material, coupled with a support element that can be placed in these gaps for enhanced cushioning and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional footwear uses a flat sole design, then manufacturing is simple and cost-effective, but cushioning and shock absorption are insufficient
Solution Approach 1:
The sole is divided into multiple peaks and troughs along its length, creating segmented zones that independently absorb and dissipate impact forces. This segmentation allows different regions of the sole to perform specialized cushioning functions while maintaining an otherwise simple overall structure.
Solution Approach 2:
The undulating surface with its curved peaks and troughs provides natural cushioning through geometric shape alone, without requiring additional padding materials. The curvature distributes impact forces across multiple contact points, enhancing shock absorption while keeping the sole structure relatively simple.
2Reliability
If the sole includes support elements in gaps, then cushioning and support are improved, but manufacturing complexity increases
Solution Approach 1:
The support elements are integrated into the gaps between peaks and troughs as part of the sole's monolithic structure. This merging of support functions into the existing geometric pattern allows the sole to be manufactured as a single piece or with minimal assembly, maintaining ease of manufacture while improving support performance.
3Stress or pressure
If the undulating sole design is used, then force distribution is improved, but the sole requires more material
Solution Approach 1:
The undulating pattern concentrates material strategically at the peaks and troughs where force distribution is most needed, while leaving gaps in areas where less material is required. This local quality variation allows effective force distribution without uniformly increasing material quantity throughout the entire sole.
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 undulating sole design distributes force more evenly, reducing peak impact on the foot and muscles, thereby enhancing the exercise experience by engaging muscles more effectively and providing improved cushioning and support, potentially reducing the risk of injury and discomfort.
Implementation Method 1
allows for compressive and shear force absorption through buckling and distortion of the midsole material
Implementation Method 2
The undulating sole design distributes force more evenly, reducing peak impact on the foot and muscles
Data Source
AI summary
An article of footwear with an undulating sole provides a different and unique ride and/or feel to the article of footwear, while also providing a unique aesthetic appeal and adequate cushioning and support. The midsole has an undulating shape substantially similar to a sine wave with a series alternating peaks and troughs, and may include one or more support elements disposed on the midsole to provide desired stiffness or cushioning properties to the midsole.