Handheld Demi-Face Shield with Slidable Clip Mechanism
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Solution Overview
Problem
In scenarios where cloth masks or full-face shields are impractical, such as during interactions in restaurants where social distancing is difficult, existing mask solutions are either unhygienic or inefficient in protecting both the wearer and others from aerosolized particles, and can muffle speech.
Innovation Solution
A handheld demi-face shield device with a curved frame secured by a slidable clip and dowel adapter, allowing for easy attachment and removal, providing adjustable height and angle for user preference, and accommodating cloth masks for enhanced protection and clear communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cloth mask or full-face shield is used, then protection against aerosolized particles is improved, but ease of operation deteriorates due to difficulty in rapid attachment and removal
Solution Approach 1:
The face shield is segmented into a handheld demi-shield design that covers only the necessary lower face area, allowing rapid deployment and removal while maintaining protection. The shield can be quickly attached and removed from the hand without requiring full-face coverage
Solution Approach 2:
The face shield incorporates adjustable features including adjustable straps and positioning mechanisms that allow dynamic adaptation to different users and situations, enabling quick adjustment during use while maintaining secure protection
2Reliability
If a mask is worn continuously, then protection is improved, but loss of time increases due to several seconds required to resecure the mask
Solution Approach 1:
The face shield is designed to be pre-positioned in the hand, ready for immediate deployment. The quick-attachment mechanism allows the shield to be rapidly secured to the face without requiring complex manipulation, reducing the time penalty for intermittent use
Solution Approach 2:
The face shield can be quickly removed and held in the hand when not needed, eliminating the need to continuously wear it while maintaining protection availability. This extraction approach allows rapid transition between protected and unprotected states
3Reliability
If a mask is held in place by hand, then protection is maintained, but object-generated harmful factors worsen due to unhygienic contact
Solution Approach 1:
The face shield incorporates self-adjusting features such as elastic straps and flexible positioning mechanisms that allow the shield to secure itself to the face without requiring hand contact during normal use, eliminating the hygiene risk of continuous hand-to-face contact
4Reliability
If a full-face shield is used, then protection is improved, but device complexity increases
Solution Approach 1:
The face shield is segmented into a demi-shield design that covers only the essential lower face area rather than the entire face, reducing structural complexity while maintaining effective protection against aerosolized particles. The simplified structure is easier to manufacture and operate
Solution Approach 2:
The handheld demi-face shield can be used in multiple configurations - worn on the face, held in the hand, or positioned as needed - providing universal protection across different scenarios without requiring complex specialized designs for each use case
Data Source
AI summary
A handheld demi-face shield device is easy to use, and can be easily attached and removed from a user's face. The handheld demi-face shield device includes a demi-shield comprising an outer edge, a handle end, a left edge, a right edge, a block end, a bottom portion, and a top portion; a nose bridge, a dowel adapter; and a dowel handle. The nose bridge is removably affixed to demi-shield and the dowel adapter includes a slideable clip, a receiving portion, a face, plurality of dowel holes, a dowel cuff; there is also a dowel handle.