Quadrant Shoe Insole Layout for Cushioning and Ankle Control
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Solution Overview
Problem
Existing shoe insoles fail to provide adequate cushioning and control during strenuous activities, leading to potential foot, ankle, or leg injuries due to abrupt load changes, and are often custom-made, making them impractical for widespread use.
Innovation Solution
Shoe insoles with defined quadrants featuring a support portion in the rearfoot exterior quadrant and cushioning portions in the forefoot and rearfoot interior/exterior quadrants, designed to fit various shoe sizes, providing enhanced cushioning and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a cushioning insole is used to maximize shock absorption, then cushioning performance is improved, but control and support are insufficient during strenuous activities
Solution Approach 1:
The insole is divided into multiple functional zones with different properties: a cushioning zone with compliant material for shock absorption, and a support zone with rigid material for control. This segmentation allows each zone to perform its specific function optimally without compromising the other.
Solution Approach 2:
Different regions of the insole have different material properties tailored to their specific functions. The cushioning zone uses soft, compliant material while the support zone uses rigid material, creating local quality variations that address different needs in different foot regions.
2Reliability
If a rigid insole is used to control foot motion, then control is improved, but the load on foot structures increases abruptly
Solution Approach 1:
The insole is segmented into a cushioning zone that absorbs shock and a support zone that provides control. The cushioning zone acts as a buffer that gradually absorbs load, preventing abrupt load changes while the support zone maintains control.
Solution Approach 2:
The cushioning zone acts as an intermediary between the foot and the rigid support zone. It mediates the load transfer, smoothing out abrupt changes in load while still allowing the rigid zone to provide necessary control.
3Reliability
If custom-made insoles are produced to address individual needs, then performance is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The insole design uses standardized components and materials that can be manufactured using common processes. The combination of compliant and rigid materials in specific zones provides universal applicability across different users while maintaining individualized performance characteristics.
Solution Approach 2:
The invention specifies particular parameter ranges for material properties (compliance vs. rigidity) and zone dimensions that can be adjusted within standard manufacturing tolerances to achieve effective individualized performance without requiring custom manufacturing for each user.
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 insoles promote proper foot alignment, balance, and comfort by distributing pressure and absorbing shock, reducing the risk of injuries and improving overall foot function.
Implementation Method 1
enhanced cushioning during push-offs and landings
Implementation Method 2
distributing pressure and absorbing shock
Implementation Method 3
improved control or stability
Implementation Method 4
control the bending and twisting of the foot by limiting foot motion
Data Source
AI summary
This invention relates to a shoe insole comprising an inner sole having one or more of a support portion in the rearfoot exterior quadrant, a cushioning portion in the forefoot interior quadrant, a cushioning portion that extends from the forefoot interior quadrant to the forefoot exterior quadrant, and a cushioning portion in the rearfoot interior quadrant and the rearfoot exterior quadrant. Methods of making, using, and positioning the disclosed shoe insole and the components thereof are also described. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.