Adjustable Eyewear Shield Ventilation Mechanism
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Solution Overview
Problem
Traditional eyewear shields that provide protection from liquids and solids can trap moisture, leading to fogging, and existing solutions to prevent fogging by making the shield air permeable may not be sufficient in all situations.
Innovation Solution
An adjustable shield that can be selectively opened to increase air flow between the eyewear and the wearer's face, featuring a clasp mechanism that allows the user to control ventilation by moving a movable portion away from a fixed portion, creating vents to prevent moisture buildup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the shield is made airtight to protect from liquids and solids, then protection capability is improved, but moisture accumulates causing fogging
Solution Approach 1:
The shield is divided into a fixed portion and a movable portion that can separate from each other. This segmentation allows the shield to maintain its protective sealing function when closed while providing a mechanism to create ventilation openings when needed, thus resolving the contradiction between airtight protection and moisture prevention.
Solution Approach 2:
The shield incorporates a movable portion that can transition between attached and separated states. This dynamic capability allows the user to adjust the shield's ventilation based on environmental conditions, maintaining protection when needed while allowing moisture escape when necessary, thereby resolving the static contradiction between sealing and venting.
2Object-generated harmful factors
If the shield is made air permeable to prevent fogging, then ventilation is improved, but protection from liquids and solids is reduced
Solution Approach 1:
By segmenting the shield into fixed and movable portions, the invention creates a selective ventilation system. The movable portion can be separated to allow air flow for ventilation while the fixed portion and overall shield structure maintain their protective function against liquids and solids, thus resolving the contradiction between ventilation and protection.
Solution Approach 2:
The shield's ventilation parameter is made adjustable through the movable portion mechanism. When the movable portion is attached, the shield provides maximum protection with minimal ventilation. When separated, it increases ventilation while maintaining structural protection, thus dynamically changing the ventilation parameter to resolve the contradiction.
3Adaptability or versatility
If the shield is made adjustable with movable portions, then adaptability to different conditions is improved, but device complexity increases
Solution Approach 1:
The shield is segmented into fixed and movable portions that can be easily attached and separated. This segmentation provides adjustability for different environmental conditions while keeping the structural complexity relatively low, as the movable portion simply needs to interface with the fixed portion rather than requiring complex mechanical systems.
Solution Approach 2:
The movable portion serves multiple functions: it provides ventilation when separated, maintains protection when attached, and can be easily manipulated by the user. This multi-functionality increases adaptability while minimizing the need for additional separate components, thus improving versatility without proportionally increasing complexity.
Data Source
AI summary
Eyewear is provided that has one or more lenses and a shield, the shield comprising a material that resists the passage of solids and liquids there through, and the shield is formed with one or more adjustable sections that allow one or more vents to be formed in said shield.