Baseball Shoe Sole Structure with Segmented Midsole
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Solution Overview
Problem
Existing sole structures for sports shoes, particularly baseball spiked shoes, are complex due to the need for multiple annular engagement portions and longitudinal grooves to prevent the cushioning member from falling out or protruding during vertical expansion and contraction, which complicates the structure and reduces comfort.
Innovation Solution
A sole structure featuring a first midsole at the heel central portion that compressively deforms outwardly via a circumferential groove, integrated with a second midsole, preventing fall-off or protrusion and enhancing heel support, thus simplifying the design and improving cushioning properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple annular engagement portions and longitudinal grooves are formed to prevent cushioning member from falling out or protruding, then the cushioning member is secured during expansion and contraction, but the structure becomes complicated
Solution Approach 1:
The invention extracts and eliminates the complex engagement portions and longitudinal grooves by using a gel-like substance that inherently prevents the cushioning member from falling out or protruding during expansion and contraction, thereby simplifying the overall structure while maintaining security
Solution Approach 2:
The invention changes the physical state of the cushioning member from solid to gel-like substance, which allows it to expand and contract smoothly without requiring mechanical engagement structures, thus resolving the contradiction between security and structural simplicity
2Reliability
If a gel-like substance is provided under a solid member with longitudinal groove, then the cushioning effect is improved, but the structure becomes more complicated
Solution Approach 1:
The invention merges the cushioning member and the gel-like substance into a single integrated structure, eliminating the need for separate solid members with longitudinal grooves, thereby improving the cushioning effect while simplifying the structure
Solution Approach 2:
The invention changes the material parameter of the cushioning member from solid to gel-like substance, which provides superior cushioning effect without requiring additional structural components, thus resolving the contradiction between cushioning effect and structural simplicity
3Reliability
If the first midsole is separated from the second midsole via circumferential groove, then the cushioning properties are improved through independent deformation, but the structural integrity may be compromised
Solution Approach 1:
The invention segments the midsole into a first midsole and a second midsole separated by a circumferential groove, allowing the first midsole to independently deform and absorb impact forces, thereby improving cushioning properties while maintaining structural integrity through the integrated design
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 sole structure effectively absorbs impact forces by compressive deformation of the first midsole, enhancing comfort and stability while maintaining a simplified design by preventing the midsole from falling or protruding, thus providing improved cushioning and support.
Implementation Method 1
the first midsole disposed at the heel central portion of the shoe expands outwardly e.g. horizontally toward the circumferential groove to compressively deform, thereby absorbing an impact force at the time of impact onto the ground
Implementation Method 2
the first midsole disposed at the heel central portion of the shoe expands outwardly e.g. horizontally toward the circumferential groove to compressively deform, thereby absorbing an impact force
Data Source
AI summary
A simplified sole structure for a baseball spiked shoe can improve cushioning properties of a heel region of the sole structure and can enhance comfort when wearing the shoe. The baseball spiked shoe includes a first midsole of a soft elastic member that is disposed at a heel central portion of the shoe, a second midsole of a soft elastic member that is disposed around and outwardly e.g. horizontally away from the first midsole via a circumferential groove therebetween and that is integrated with or unitary as one unit with the first midsole, and an outsole plate of a hard elastic member that is disposed on lower surfaces of the first and second midsoles, that has a plurality of spikes fitted thereon, and that has a hardness greater than a respective hardness of each of the first and second midsoles.