Pivotable Helmet Shield With Protective Cover
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Solution Overview
Problem
There is a need for an improved helmet design with a pivoting visor that is easily constructed and has a removable/replaceable shield, which is also protected from scratching and cracking, and is suitable for various types of helmets such as bicycle, ski, and motorcycle helmets, while maintaining aerodynamics and simplicity.
Innovation Solution
A helmet design featuring a convex hard outer shell, a concave impact-dissipating inner layer, a pivotably attached shield, and a shield cover that protects the shield when not in use, allowing for easy replacement and reduced manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the shield is made removable and replaceable, then ease of repair and adaptability improve, but reliability deteriorates due to potential safety issues
Solution Approach 1:
The shield is divided into separate components: the shield itself, the shield cover, and the fulcrum mechanism. This segmentation allows the shield to be easily removed and replaced while maintaining a secure attachment system through the fulcrum and cover, resolving the contradiction between replaceability and safety.
2Reliability
If the shield is permanently affixed to prevent removal, then reliability improves, but ease of repair and adaptability worsen
Solution Approach 1:
The shield attachment system transitions from a static permanent affixing to a dynamic reversible connection via the fulcrum mechanism. The shield can be securely attached during use and easily removed for replacement, providing both reliability and ease of repair through controlled dynamic attachment.
3Adaptability or versatility
If the shield is made transparent for visibility, then adaptability improves, but strength deteriorates due to scratching and cracking
Solution Approach 1:
The shield cover acts as an intermediary protective layer between the environment and the transparent shield. This cover protects the shield from scratches and cracks while allowing the shield to maintain its transparent properties for visibility, resolving the contradiction between adaptability and strength.
4Strength
If the shield cover is added to protect the shield, then strength improves, but device complexity increases
Solution Approach 1:
The shield cover is merged with the existing fulcrum mechanism and helmet structure, integrating the protective function into the existing design rather than adding a completely separate system. This merging provides protection while minimizing the increase in overall device complexity.
Data Source
AI summary
A helmet contains a convex, hard outer shell, a concave, impact-dissipating inner layer, a shield, and a shield cover. The concave, impact-dissipating inner layer is fitted to the convex, hard outer shell and contains a front portion having a shield indentation, a back portion, a top portion a right side portion, and a left side portion. The left side portion is opposite the right side portion. The shield is pivotably attached to the helmet via a fulcrum and pivots about the fulcrum. The shield also partially occludes the shield indentation. The shield cover is fixably attached to the helmet and at least partially occludes the front portion. The shield cover also at least partially occludes the shield.