Mask Filter Border with Bent and Flat Regions for Softness
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Solution Overview
Problem
Existing air filters used in masks to prevent fine dust inhalation lack softness and flexibility, which can lead to discomfort and reduced wearability due to rigidity.
Innovation Solution
A filter design featuring a border portion with a first region bent at least once and a second region formed in a flat shape to provide softness, utilizing a multi-layered structure with different thicknesses and fusion methods to enhance stiffness and pliability, allowing the filter to be bent and accommodate varying shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the border portion is formed with a flat shape, then the filter maintains structural stability, but the filter lacks softness and flexibility
Solution Approach 1:
The border portion is divided into multiple bent regions (first region, second region, third region) with different bending configurations. Each region can be independently bent at different angles, allowing the filter to adapt to various facial contours while maintaining overall structural integrity through the connected flat regions.
Solution Approach 2:
Different regions of the border portion are designed with different bending characteristics - some regions are bent at specific angles to provide rigidity where needed, while other regions are designed to be more flexible to conform to curved surfaces. This local differentiation of mechanical properties resolves the contradiction between stability and flexibility.
2Ease of manufacture
If the filter is made with uniform thickness, then the filter maintains manufacturing simplicity, but the filter cannot provide both stiffness and softness
Solution Approach 1:
The filter employs a multi-layered structure where different regions have different thicknesses. The flat regions maintain greater thickness for stiffness, while the bent regions have reduced thickness to provide flexibility. This local variation in thickness allows the filter to exhibit both stiff and soft characteristics in different areas.
Solution Approach 2:
The filter uses a composite multi-layered construction combining materials and thicknesses that provide both rigidity and flexibility. The layered structure allows different regions to contribute different mechanical properties, achieving a balance between stiffness and softness that would be impossible with a uniform single-layer design.
Data Source
AI summary
A filter according to an embodiment include a filter main body provided with a sheet member, and a border portion of the filter main body includes a first region bent at least one time, and a second region formed in a flat shape and provided to be bendable and to provide softness to the filter main body.