Porous structure and method for manufacturing porous structure
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Solution Overview
Problem
Existing methods for manufacturing porous structural bodies with cushioning characteristics, such as those using 3D printers, lack the necessary degree of freedom to adjust dynamic characteristics.
Innovation Solution
A porous structural body made of flexible resin or rubber, featuring a skeleton part with bone parts and connection parts that interfere with each other upon compression, manufactured using a 3D printer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If porous structural bodies are manufactured using conventional 3D printing methods, then manufacturing ease is improved, but the degree of freedom to adjust dynamic characteristics deteriorates
Solution Approach 1:
The skeleton part is divided into multiple bone parts and connection parts that can independently deform. This segmentation allows each part to contribute differently to the overall dynamic characteristics, enabling finer adjustment of cushioning properties while maintaining 3D printability through modular design
Solution Approach 2:
The invention introduces a dynamic interference mechanism where bone parts and connection parts are designed to interfere with each other during compression. This dynamic interaction creates adjustable damping characteristics that respond to loading conditions, providing degree of freedom in tuning dynamic behavior without complicating the manufacturing process
2Adaptability or versatility
If porous structural bodies are manufactured using chemical foaming processes, then dynamic characteristics can be adjusted, but manufacturing complexity increases
Solution Approach 1:
The invention replaces chemical foaming processes with a mechanically-driven interference mechanism. Instead of relying on chemical reactions to create porous structures with adjustable dynamics, the patent uses geometrically-designed bone and connection parts that interfere mechanically during compression, simplifying the manufacturing process to 3D printing while maintaining dynamic adjustability
Data Source
AI summary
A porous structural body 1 is a porous structural body made of flexible resin or rubber, the porous structural body including a skeleton part 2 throughout an entirety thereof, wherein the skeleton part includes: a plurality of bone parts 2B; and a plurality of connection parts 2J that connect end portions of the plurality of bone parts, and wherein the porous structural body is configured such that a plurality of portions of the skeleton part interfere with each other when the porous structural body is compressed to deform in a predetermined weight input direction.