Footwear Sole with Ribbed Shank and Forefoot Stabilizer
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Solution Overview
Problem
Existing footwear sole designs fail to address shock absorption and foot stability in a coordinated manner, resulting in disjointed components that do not promote a natural gait.
Innovation Solution
A footwear sole with a forefoot region, mid-foot region, and heel region, featuring a lower heel cushion, upper heel cushion, shank with reinforcement ribs, and a forefoot stabilizer with an axial spine and lateral ribs, integrated with a foot bed that includes elastomer cushioning domes and a moisture-wicking liner, to provide shock absorption, stability, and natural gait support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual components are added to address specific problems (shock absorption, stability), then those specific functions are improved, but the overall design becomes a collection of disjointed components that do not operate in a coordinated manner
Solution Approach 1:
The patent merges multiple functional components (heel cushioning layers, forefoot stabilizer with axial spine and lateral ribs, shank with reinforcement ribs, arch support) into a single integrated sole structure. The stabilizer and shank are positioned within the same sole base, and their functions are coordinated to work together sequentially during the gait cycle, transforming a collection of disjointed components into a unified system that addresses shock absorption and stability simultaneously.
Solution Approach 2:
The sole is segmented into distinct functional regions (heel region with layered cushioning, midfoot region with shank and stabilizer, forefoot region with arch support) that operate in a sequential manner. Each segment addresses specific biomechanical needs at different stages of the gait cycle, allowing the components to work in coordination rather than as disjointed elements.
2Reliability
If multiple layers and components are added to improve shock absorption and stability, then performance is improved, but the structure becomes more complex and less integrated
Solution Approach 1:
The patent combines multiple functional elements into a unified sole structure where the stabilizer, shank, and cushioning layers are positioned and configured to work together as an integrated system rather than separate add-on components.
Solution Approach 2:
Different regions of the sole are given different structural properties and functions: the heel region has layered cushioning for shock absorption, the midfoot has a rigid shank with reinforcement ribs for stability, and the forefoot has a stabilizer with axial spine and lateral ribs for natural gait promotion. Each local region is optimized for its specific function while contributing to overall integrated performance.
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 integrated design effectively absorbs shock, stabilizes the foot, and promotes a natural gait by combining cushioning, reinforcement, and arch support, facilitating balanced movement and forward momentum.
Implementation Method 1
A lower heel cushion is positioned in the heel region. An upper heel cushion is positioned over the lower heel cushion.
Implementation Method 2
The foot bed may include elastomer cushioning domes at heel and metatarsal impact points.
Implementation Method 3
The foot bed may include a liner with moisture wicking and anti-microbe properties.
Data Source
AI summary
A footwear sole includes a footwear sole base with a forefoot region, a mid-foot region, and a heel region. A lower heel cushion is positioned in the heel region. An upper heel cushion is positioned over the lower heel cushion. A shank with reinforcement ribs is positioned in the mid-foot region. A forefoot stabilizer is positioned in the forefoot region. The forefoot stabilizer includes an axial spine and lateral ribs to facilitate forward movement and lateral support. The footwear sole may be used in combination with a foot bed with a flexible base and a rigid orthotic structure. The foot bed may include elastomer cushioning domes at heel and metatarsal impact points. The foot bed may include a liner with moisture wicking and anti-microbe properties.