Internal Sipe Insert for Footwear Flexibility and Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing footwear technologies fail to replicate the natural flexibility, cushioning, and stability of the human bare foot, as they often use rigid materials and designs that obstruct the natural interaction between the foot and the ground, leading to degraded support and cushioning.
Innovation Solution
The integration of a unitary internal sipe insert or component with internal slits or channels into footwear soles and orthotics, which allows for relative motion between surfaces, enhancing flexibility and stability by mimicking the natural anatomical structure of the foot, and can include lubricating media like magnetorheological fluids for improved control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid materials are used in footwear soles, then structural strength is improved, but flexibility and natural foot interaction are degraded
Solution Approach 1:
The footwear sole is divided into multiple segments through internal sipes that create separable layers. These sipes allow the sole to be segmented into movable sections that can flex relative to each other, enabling the rigid material to achieve flexibility through division rather than material softening.
Solution Approach 2:
The internal sipe structure creates nested layers within the sole construction, where inner layers can move independently within outer layers. This nesting allows multiple layers of material to be contained within each other while maintaining relative motion, achieving both strength from material layers and flexibility from internal movement.
2Stability of the object's composition
If fixed cushioning structures are used, then support is improved, but shock absorption and natural foot deformation are reduced
Solution Approach 1:
The cushioning structure transitions from a fixed, static configuration to a dynamic system where internal layers can move and deform relative to each other. The internal sipes enable the cushioning material to dynamically adjust its configuration in response to applied forces, enhancing shock absorption while maintaining support.
Solution Approach 2:
The physical state and configuration of the cushioning material are allowed to change in response to loading conditions. The internal sipe structure enables parameters such as layer separation distance and material deformation to vary dynamically, optimizing cushioning performance across different weight-bearing scenarios.
3Ease of operation
If internal sipes with lubricating media are used, then flexibility is improved, but device complexity increases
Solution Approach 1:
A lubricating media is introduced as an intermediary substance between the internal sipe layers to facilitate smooth relative motion. This mediator reduces friction and enables enhanced flexibility without requiring complex mechanical joints or moving parts, simplifying the overall structure while achieving the desired flexibility.
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
This solution results in footwear that closely mimics the natural flexibility and stability of the bare foot, providing enhanced cushioning against shock and shear forces while maintaining lateral stability, reducing impact forces, and improving overall foot comfort and performance.
Implementation Method 1
The internal sipe integral insert or component invention further can be usefully combined with the applicant's prior footwear inventions described in this application and expressly incorporated by reference herein below, including removable midsole structures and orthotics and chambers with controlled variable pressure, including control by computer, for example.
Implementation Method 2
The internal sipe integral insert or component invention further can be usefully combined with the applicant's prior footwear inventions described in this application and expressly incorporated by reference herein below, including removable midsole structures and orthotics and chambers with controlled variable pressure, including control by computer, for example.
Data Source
AI summary
Devices with internal flexibility sipes, such as slits, provide improved flexibility, improved cushioning to absorb shock and/or shear forces, and improved stability of support. Siped devices can be used in any existing product that provides or utilizes cushioning and stability. These products include human and other footwear, both soles and uppers, as well as orthotics; athletic, occupational and medical equipment and apparel; padding or cushioning, such as for equipment or tool handles, as well as furniture; balls; tires; and any other structural or support elements in a mechanical, architectural, or any other product.