Weight Compensating Bracket for Face Shield
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing face shield hinge mechanisms are complex, prone to failure in harsh environments, require multiple steps for operation, and often result in unbalanced stowed positions that project forward, causing interference and discomfort.
Innovation Solution
A weight compensating bracket system with a simple pivot mechanism that balances the face shield above the helmet in the stowed position, minimizing forward projection and allowing easy transition between deployed and stowed positions, without sliding components or external projections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sliding mechanism is used to achieve a balanced stowed position, then the face shield can be balanced above the helmet, but the mechanism is hindered by sand and debris causing failure to operate
Solution Approach 1:
The patent removes the sliding mechanism entirely and replaces it with a simple pivot joint. This extraction of the problematic sliding components eliminates the vulnerability to sand and debris while maintaining the ability to achieve a balanced stowed position through the pivot mechanism alone
Solution Approach 2:
The complex sliding mechanism is replaced with a simpler pivot-based mechanical system. The pivot joint allows rotational movement without the sliding surfaces that are susceptible to contamination, thereby improving reliability in harsh environments through mechanical substitution
2Reliability
If a complex hinge mechanism is used to achieve balanced stowed position, then the face shield can be balanced above the helmet, but the mechanism becomes complex and prone to failure
Solution Approach 1:
The patent extracts and removes the complex multi-component hinge mechanism, retaining only the essential pivot joint functionality. This simplification reduces the number of moving parts and potential failure points while maintaining the balanced stowed position capability
Solution Approach 2:
Instead of using a complex hinge that slides to achieve balance, the patent inverts the approach by using a simple pivot that rotates to achieve the same balanced position. This inversion of the mechanical approach simplifies the system while maintaining functionality
3Ease of operation
If a sliding pivot mechanism is used, then the face shield can move between positions, but ice buildup from user breath locks up the mechanism
Solution Approach 1:
The patent removes the sliding pivot mechanism that is vulnerable to ice buildup and replaces it with a pivot joint design that does not have sliding surfaces. This extraction eliminates the harmful effect of ice accumulation on mechanism operation
Solution Approach 2:
The patent employs a simple, robust pivot joint that can be easily replaced if needed, rather than a complex sliding mechanism that is vulnerable to environmental factors. This approach treats the mechanism as a simple, replaceable component rather than a precision sliding system
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 seamless, single-handed operation of the face shield between positions, resistant to environmental hazards, and provides long-term comfort by maintaining a balanced, compact stowed position, reducing interference and enhancing usability in various conditions.
Implementation Method 1
A weight compensating bracket system with a simple pivot mechanism that balances the face shield above the helmet in the stowed position
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A weight compensating bracket to releasably and pivotably mount a protective face shield to a helmet. The bracket has an adapter, which places the pivot of the cap bracket to which the face shield is mounted, rearwardly from the releasable connector to the helmet, enabling the face shield to be well balanced when in the stowed position above the helmet.