Shoe Base with Metal Springs for Impact Absorption
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Solution Overview
Problem
Conventional shoe structures using EVA, PU, TPR, or TPU materials have limited impact force absorption and restricted functionality for sport activities, despite enhancing comfort and friction with line patterns.
Innovation Solution
A shoe structure incorporating a base portion with a space containing flexible metal springs, which absorb impact forces and provide rebounding support to enhance running speed and jumping height, while maintaining foot protection and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If EVA, PU, TPR or TPU materials are used in shoe fabrication to increase comfort ability, then comfort is improved, but impact force absorption ability is limited
Solution Approach 1:
The patent combines traditional shoe materials (EVA, PU, TPR, or TPU) with flexible metal springs to create a composite structure. The spring unit is integrated into the base portion of the shoe, working together with the traditional materials to provide both comfort and enhanced impact force absorption. This composite approach allows the shoe to maintain the comfort properties of conventional materials while adding the shock-absorbing capability of spring mechanisms.
Solution Approach 2:
The flexible metal spring acts as an intermediary element between the foot and the ground. When the foot contacts the ground during running or jumping, the spring compresses to absorb impact forces, and then expands to provide rebounding support. This intermediary mechanism mediates the force transmission, reducing the direct impact on the foot while maintaining natural movement.
2Force
If line pattern design is used on the base part to increase roughness and fiction between ground and shoes, then friction is improved, but sport activity functions are restricted
Solution Approach 1:
The shoe base portion is segmented into multiple functional zones: areas with line patterns for friction, areas with spring units for impact absorption, and areas with air gaps for ventilation. This segmentation allows each region to perform its specific function optimally without compromising other performance aspects. The spring units are strategically positioned to provide sport-specific support while the line patterns remain in areas where friction is most needed.
Solution Approach 2:
Different regions of the shoe base portion have different surface properties and structural characteristics. The line patterns are located in areas where grip is most important, while the spring units are positioned in areas requiring impact absorption. This local differentiation of qualities allows the shoe to simultaneously provide good friction and maintain sport activity functionality.
3Object-affected harmful factors
If air bags are used to absorb impact force and minimize injury to feet, then impact absorption is improved, but device complexity increases
Solution Approach 1:
The patent uses flexible metal springs that can be easily manufactured and integrated into the shoe structure. Compared to air bags, springs are simpler in design, easier to manufacture, and more durable. The spring units are contained within the base portion and require minimal additional components, reducing overall structural complexity while maintaining effective impact force absorption.
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 shoe structure significantly improves running speed and jumping height by minimizing impact force on the foot, with recorded improvements of approximately 0.675 seconds in 100m running time and 5.25cm in jumping height, while maintaining load-bearing capacity and air circulation for foot hygiene.
Implementation Method 1
At least one flexible device, such as a spring is located within the space of the base portion. The load-bearing limit of the shoe structure of the present invention is within a weight range of the user so that the foot of the user can be protected in order to minimize the impact force from the ground to the foot of the user when the user steps or jumps on the ground.
Data Source
AI summary
The present invention provides an improved shoe structure to improve the sport efficiency and the wearing comfort of the user. The shoe structure comprises a base portion and a cover portion, wherein a plurality of flexible devices, such as springs, are formed within the base portion of the shoe structure to provide a load-bearing function. The shoe structure of the present invention is designed not only to provide comfort but also to bear a high load of weight such that the foot of the user can be protected by minimizing the impact force produced from the ground when the user steps or jumps on the ground. A plurality of air gaps are formed within the shoe structure to circulate the air within the shoe structure so that the foot of the user can keep dry and active in a clear environment.