Shoe Sole Spring Embedding for Stable Cushioning
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Solution Overview
Problem
Existing spring shoes face challenges in maintaining balance and achieving stable cushioning effects during walking, as the load distribution is unstable when the heel deviates from the center, and the cushioning power is compromised due to the sole contracting with the spring.
Innovation Solution
A method of manufacturing a shoe with a recessed groove on the sole surface for a rigid plate to support an elastic member, which includes a spring, ensuring effective load transfer and enhanced cushioning by using nonwoven fabrics and springs between the fabrics, and covering the spring with a cover to maximize cushioning power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a single spring is installed on the bottom of the shoe to provide cushioning power, then the shoe can absorb shock and provide momentum, but the cushioning effect is unstable when the load deviates from the center
Solution Approach 1:
The invention divides the single spring into multiple springs arranged in a row along the longitudinal direction of the sole. This segmentation allows the load to be distributed across multiple contact points with the ground, maintaining stable cushioning even when the load deviates from the center, while preserving the shock-absorbing capability of each individual spring.
2Force
If the spring is positioned on the upper surface of the shoe sole to absorb load, then the spring can be accessed for cushioning, but the sole contracts with the spring causing loss of cushioning effect
Solution Approach 1:
The invention introduces a plate as an intermediary component between the spring and the sole. The plate is fixed to the sole and provides a stable mounting surface for the spring, preventing the sole from contracting with the spring. This intermediary structure ensures that the spring maintains its cushioning effect while being properly supported by the sole.
3Power
If multiple springs are arranged at the bottom of the shoe to maximize cushioning power, then the shoe can provide excellent shock absorption, but the shoe is difficult to use for general purposes in normal times
Solution Approach 1:
The invention positions the multiple springs specifically in the heel region of the sole, where they provide maximum cushioning benefit during walking and exercise. This localized arrangement maintains excellent shock absorption where needed while keeping the forefoot area flexible and comfortable for general wear, thus balancing performance with ease of use.
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 method effectively transfers cushioning power to the foot sole, providing a stable buffering effect and maximizing cushioning, even when the load deviates from the center, ensuring comfortable fit and improved load distribution.
Implementation Method 1
a spring is combined with a bottom surface or a rear part of the insole of the shoe to relieve the load on the body
Implementation Method 2
a sole molding operation of molding a sole with a shape corresponding to a foot sole of a wearer, having an upper surface on which a groove is recessed, after a foam material is injected into a mold
Data Source
AI summary
The present invention provides a method for manufacturing shoes having springs embedded therein, the method in which comfort and body weight distribution effect can be enhanced by means of the shock-absorbing force of resilient members being more effectively transmitted to the soles of a wearer.