Expanded Metal Visor Network Structure for Optical Clarity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current visors, particularly those with network structures, face issues with light transmittance, strength, weight, condensation, foreign matter accumulation, and visual disturbances, such as dizziness and nausea, due to their production methods and materials.
Innovation Solution
A method for producing a visor with a network structure of expanded metal, where wire portions with rectangular cross sections are arranged such that long sides have a lesser angle to the general extension plane than short sides, eliminating the Venetian blind effect and enhancing light transmittance, strength, and rigidity while reducing material consumption and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the long sides of rectangular wire cross sections are arranged with a greater angle to the extension plane (Venetian blind effect), then light transmittance for oblique light from below is improved, but this causes dizziness and nausea in the user
Solution Approach 1:
The patent inverts the conventional Venetian blind arrangement by making the long sides of the rectangular wire cross-sections have a lesser angle to the extension plane than the short sides. This reversal of the angle relationship eliminates the dizziness and nausea caused by the traditional configuration while still providing effective light transmittance and visual protection.
2Ease of manufacture
If separate wires are joined together with glue or lacquer to form a network structure, then the visor can be assembled, but the glue or lacquer comes loose after use causing larger holes and reduced protection
Solution Approach 1:
The patent merges the separate wire portions and connecting portions into a single integrated expanded metal structure. The wire portions and connecting portions are formed as one continuous piece of metal, eliminating the need for separate joining operations with glue or lacquer and ensuring permanent structural integrity.
3Strength
If wires have a relatively large cross-sectional dimension to obtain sufficient strength and rigidity, then the network structure gains strength, but light transmittance is impaired
Solution Approach 1:
The patent changes the geometric parameters of the wire cross-sections, specifically using rectangular cross-sections with controlled dimensions and angles. By optimizing the ratio between wire thickness and opening size, and by arranging the long sides at a lesser angle than short sides, the structure achieves sufficient strength while maximizing light transmittance through the network.
Data Source
Figure 1
Figure 2A~2D
Figure 3A~3D
AI summary
Visor comprising a network structure formed of expanded metal, which network structure has a general extension plane (113, 114, 213, 214) and is formed of wire portions (11, 111, 211) and connecting portions (12, 112, 212), the respective ends of four wire portions (11, 111, 211) being joined in each connecting portion (12, 112, 212), and which wire portions (11, 111, 211) have substantially rectangular cross sections having long sides (111A, 211A) and short sides (111B, 211B). The wire portions (11, 111, 211) are arranged such that the long sides (111A, 211A) of their cross sections have a lesser angle to the general extension plane (113, 114, 213, 214) of the network structure than do the short sides (111B, 211B). The invention also relates to a method for use in the production of such a visor.