Face Shield Assembly Elastic Tube Resizing
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Solution Overview
Problem
Existing face shields lack a simple and effective method for resizing to accommodate users of different head sizes, often being either too large or too small, which limits their universal applicability and comfort.
Innovation Solution
A face shield assembly featuring an elastic tube and push-in rivets that can be adjusted by shortening the tube to fit various head sizes, with fasteners extending through apertures in the shield to secure the tube in place, allowing for easy resizing without compromising comfort or protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a standard face shield assembly is used, then it provides protection for users, but it cannot accommodate users of different head sizes
Solution Approach 1:
The patent applies the dynamics principle by making the tube length adjustable rather than fixed. The tube can be cut to different lengths to accommodate various head sizes, transforming a static structure into a dynamic, adaptable one. This allows the same face shield assembly to fit different users by modifying only the tube length, not the entire structure.
Solution Approach 2:
The patent applies segmentation by separating the tube from the shield assembly. The tube is a distinct, removable component that can be independently adjusted or replaced. This segmentation allows the tube to be cut to different lengths while the shield and other components remain standardized, simplifying the adjustment process.
2Adaptability or versatility
If the tube length is fixed, then the manufacturing process is simple, but the face shield cannot be resized for different users
Solution Approach 1:
The patent applies preliminary action by providing the tube in a standardized, pre-manufactured form that can be easily cut to different lengths. The tube is designed from the outset to be adjustable, with features like apertures positioned to accommodate fasteners at various locations. This preliminary design decision enables easy customization without complicating the base manufacturing process.
3Adaptability or versatility
If multiple sizes of face shields are manufactured, then users of different sizes can be accommodated, but the device complexity and inventory requirements increase
Solution Approach 1:
The patent applies universality by designing a single face shield assembly that can serve multiple users of different sizes. The standardized shield, bumper, and fastener components remain the same, while only the tube length varies. This universal design eliminates the need for multiple specialized models, allowing one assembly type to fulfill multiple size requirements through simple tube adjustment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a single standard face shield assembly to fit users of different sizes comfortably, maintaining protection and ease of use by allowing for straightforward adjustment to accommodate smaller head sizes through tube shortening, thereby enhancing user versatility.
Implementation Method 1
the tube is an elastic tube
Data Source
AI summary
A face shield assembly includes, among other things, a shield configured to be placed adjacent a front of a head of a user, a tube configured to be placed against a rear of the head of the user, and fasteners. Each of the fasteners binds the tube to at least the shield.