Concave Insole Diaphragm Spring for Foot Load Cushioning
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Solution Overview
Problem
Existing orthopedic insoles are expensive, customized to a single person's footprint, and not adaptable to different foot shapes, making them impractical for widespread use and difficult to manufacture affordably.
Innovation Solution
The insole features a concave curvature design that acts as a diaphragm spring, reducing foot load and joint stress, with adjustable spring force and a detachable magnetic fastening system, allowing for customization to various foot shapes and easy manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a profile structure is formed from foam according to a footprint, then the insole can correct foot malpositions and support the arch, but the insole becomes expensive and suitable for only one person
Solution Approach 1:
The insole is designed with a universal concave curvature structure that can adapt to different foot shapes without requiring custom footprinting for each individual. The concave region acts as a diaphragm spring that provides arch support and foot correction functionality across multiple users, making the product universally applicable while maintaining its orthopedic benefits
Solution Approach 2:
The insole utilizes changes in geometric parameters, specifically the concave curvature radius and depth, to achieve both foot correction and adaptability. By optimizing these geometric parameters, the insole can accommodate variations in foot shape while maintaining the necessary support structure for correcting foot malpositions
2Reliability
If a concave curvature is provided to act as a diaphragm spring, then the insole can cushion loads and reduce joint stress, but the manufacturing complexity may increase
Solution Approach 1:
The insole incorporates a concave curvature structure that functions as a diaphragm spring. This curved geometry enables the insole to cushion loads and reduce joint stress by deformable under load, while the curvature itself is integrated into the basic insole body structure rather than being a separate component
Solution Approach 2:
The load cushioning function is merged with the basic insole body structure. The concave curvature is formed as an integral part of the insole rather than being a separate component, combining the structural support function with the shock absorption function in a single unified structure
3Manufacturing precision
If prior footprinting is required for custom insole production, then the insole fits the individual's foot perfectly, but the production time and cost increase significantly
Solution Approach 1:
Instead of requiring custom footprinting for each individual, the invention uses a standardized concave curvature design that serves as a universal template. This template can be mass-produced and then adapted to different foot shapes through simple adjustments, eliminating the time-consuming footprinting process while maintaining adequate fit and support
Solution Approach 2:
The insole is pre-formed with an optimized concave curvature structure that provides universal adaptability. This preliminary structuring allows the insole to be ready for use without requiring on-site customization or footprinting procedures, significantly reducing production time while maintaining functional effectiveness
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 insole effectively cushions foot loads, improves posture, and reduces joint stress, while being adaptable to different foot shapes and affordable to produce, making it suitable for various shoe types and activities.
Implementation Method 1
At least one region (3; 3a; 3c; 3d) is expediently provided that has a concave curvature. As a result of the concave curvature, the insole acts as a diaphragm spring which is formed as an individual spring and which can cushion loads during use.
Implementation Method 2
the fastening means comprises a multi-part, preferably two-part magnetic fastening element
Data Source
AI summary
The invention relates to an insole (1; 1a; 1c; 1d), which has an insole underside (5; 5a; 5c; 5d) and an insole upper side (2; 2a; 2c; 2d), the insole underside (5; 5a; 5c;5d) being intended to bear against at least part of a shoe sole (6; 6a; 6c), and the insole upper side (2) being intended to bear at least part of the surface of the sole of a foot. At least one region (3; 3a; 3c; 3d) is expediently provided that has a concave curvature. As a result of the concave curvature, the insole acts as a diaphragm spring which is formed as an individual spring and which can cushion loads during use. The load on the foot of a person using the insole is thus lessened, which improves posture. The stress on joints when exposed to prologend loading is also reduced.