Adjustable Headband Face Shield with Removable Shield

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Solution Overview

Problem

Existing face shields do not offer an adjustable and cost-effective solution for protecting the face from flying debris and fluids in both medical and non-medical applications, particularly when worn under conventional equipment like hats and helmets.

Innovation Solution

A face shield with an adjustable headband integrally formed with a brim, featuring catch members and channels for customizable sizing, and removable transparent shields for easy replacement, allowing for a secure, comfortable, and lightweight design suitable for various activities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a face shield is designed with a fixed headband, then the structure is simple and manufacturing is easy, but it cannot adapt to different head sizes and provides poor comfort

Engineering Contradiction:
Improveadaptability to different head sizesVSAvoidheadband structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The headband incorporates an adjustable mechanism that allows it to change its circumference to fit different head sizes. The headband includes an adjustment member that can be moved along the headband to select different positions, enabling the headband to adapt dynamically to various head dimensions while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

2Weight of moving object

If a face shield uses a lightweight material, then comfort and ease of wear are improved, but protection strength may be reduced

Engineering Contradiction:
Improveface shield weightVSAvoidprotection strength
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The face shield employs composite construction combining a lightweight headband material with a separate shield component. The headband is made from lightweight material while the shield portion provides the necessary protection strength, creating a composite structure that optimizes both weight and protection requirements.

Inventive Principle:
Principle #40Composite materials

3Reliability

If a face shield has a secure fit mechanism, then reliability of protection is improved, but ease of operation and adjustment is reduced

Engineering Contradiction:
Improvesecure fit reliabilityVSAvoidadjustment ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The adjustment mechanism is designed to be self-regulating, allowing the user to easily adjust the headband to their preferred fit by simply moving the adjustment member to the desired position. The mechanism maintains secure fit reliability while requiring minimal user intervention and effort for adjustment.

Inventive Principle:
Principle #25Self-service

4Ease of repair

If a face shield is designed for easy replacement of shields, then ease of repair and maintenance is improved, but device complexity increases

Engineering Contradiction:
Improveshield replacement easeVSAvoidreplacement mechanism complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The face shield is divided into separable components including the headband and the shield portion. This segmentation allows the shield to be easily removed and replaced by simply detaching it from the headband, facilitating easy maintenance and replacement without requiring complex mechanisms.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8291512B2Face shield
Publication Date: 2012.10.23 STOLL WALTER
  • US8291512B2 patent drawing
  • US8291512B2 patent drawing
  • US8291512B2 patent drawing

AI summary

A face shield includes a brim having a front portion, a rear portion, an upper portion, and a lower portion. A channel is formed in the lower portion adjacent the rear portion of the brim. The front portion includes a plurality of spaced apart catch members disposed thereon. A head band is unitary with one side of the brim and configured to surround a head of a wearer. The head band has a free end that is adjustably insertable into the channel of the brim to select a size of the head band for the head of the wearer. The face shield may include a removable transparent shield having a plurality of holes formed therein. Each of the holes is configured to cooperate with one of the catch members of the brim to releasably hold the transparent shield on the front portion of the brim.