Insole With Variable Height Protrusions For Gravity Control
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Solution Overview
Problem
Conventional insoles do not effectively suppress excessive outward displacement of the center of body gravity during sports and walking, nor do they specifically control movement by adjusting arch thickness or toe push-off forces.
Innovation Solution
An insole with three areas (forefoot, midfoot, and hindfoot) featuring protrusions that vary in height to guide the center of body gravity inward and enhance push-off force, particularly around the hallux, by using outer and inner protrusions to manage foot movement and pressure distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional insoles with uniform arch support are used, then general foot support is provided, but they cannot suppress excessive outward displacement of the center of body gravity during sports and walking
Solution Approach 1:
The insole applies local quality by providing different protrusion heights at different locations. The outer forefoot, midfoot, and hindfoot protrusions have distinctive heights within 0.2mm to 15mm range, creating localized support zones that guide the center of body gravity inward while maintaining overall foot support.
Solution Approach 2:
The insole is segmented into three functional areas (forefoot, midfoot, hindfoot) with distinct protrusion structures in each area. This segmentation allows each region to perform its specific function: forefoot protrusions guide push-off, midfoot protrusions support the arch, and hindfoot protrusions stabilize the heel, collectively suppressing outward displacement.
2Ease of manufacture
If conventional insoles with simple arch protrusions are used, then basic arch support is achieved, but they cannot control movement of the center of body gravity by adjusting thickness in millimeter units
Solution Approach 1:
The invention applies parameter changes by precisely controlling the height parameter of protrusions within 0.2mm to 15mm range. Different protrusions (outer forefoot, midfoot, hindfoot) have distinctive heights that can be adjusted in millimeter units to control the movement trajectory of the center of body gravity, transforming a simple support structure into a precision motion control device.
3Ease of operation
If conventional insoles without specific toe shape design are used, then general comfort is provided, but they cannot control push-off force and direction
Solution Approach 1:
The insole applies local quality by providing specific protrusion structures in the forefoot area that contact particular toe regions. These localized structures guide the user to push off with specific parts of the foot (particularly the hallux region) while maintaining overall comfort through the distributed protrusion design across all three foot areas.
Data Source
AI summary
Provided is an insole to suppress, in a foot sole, an excessive outward displacement of the center of body gravity. An insole to be used as a shoe insole includes three areas divided from a top surface of the insole. The three areas include a forefoot area, a midfoot area, and a hindfoot area. In an outer section, all three areas are provided with an outer forefoot protrusion, an outer midfoot protrusion, and an outer hindfoot protrusion that protrude upwards from the top surface of the insole or downwards from a bottom surface of the insole. The protrusions are formed to have respective heights of protrusion distinctive from one another within a range of 0.2 mm or higher and 15 mm or lower.