Tear-off Guide Piece for Goggle Lens Strip Removal
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Solution Overview
Problem
Conventional removable lens strip systems for protective eyewear, such as motorcycle goggles, often result in the inadvertent removal of multiple tear-off strips, reducing visibility due to dirt and debris accumulation, as riders struggle to distinguish the top strip for removal.
Innovation Solution
A tear-off guide piece is positioned adjacent to the securing post to create a space housing the underlying extended tabs, shielding them from accidental grasp and ensuring only the top-most strip is removed, preventing the inadvertent removal of additional strips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If multiple tear-off lens strips are stacked for continuous use, then the duration of clear vision is improved, but the risk of inadvertent removal of multiple strips increases
Solution Approach 1:
A guide piece is introduced as an intermediary element between the user's hand and the stack of lens strips. This guide piece physically blocks access to the underlying strips, allowing the user to interact only with the top strip's tab, thereby preventing inadvertent removal of multiple strips while maintaining the stack configuration for extended use
2Ease of operation
If the extended tabs of underlying strips are left exposed, then the ease of operation for removing any strip is improved, but the difficulty of distinguishing the top strip increases
Solution Approach 1:
The guide piece extracts or separates the function of tab access from the underlying strips. By blocking the tabs of all strips except the top one, the guide piece makes the top strip uniquely identifiable without requiring the user to visually distinguish or manually search through multiple exposed tabs, thus maintaining ease of operation while eliminating the distinction problem
3Reliability
If a guide piece is added to prevent inadvertent removal, then the reliability of strip removal is improved, but the device complexity increases
Solution Approach 1:
The guide piece applies local quality by providing protection only where needed - specifically blocking access to the tabs of underlying strips while leaving the top strip's tab accessible. This localized intervention achieves the reliability improvement without requiring a complete redesign of the entire lens strip system, thus minimizing the increase in device complexity
Data Source
AI summary
A novel removable lens strip system suitable for use with goggles and helmets is disclosed, wherein lens strips may be easily removed from the goggle lens or helmet shield as the strips become soiled, and thus obstructing the user's vision. More specifically, a guide piece is employed that shields underlying removable lens strips from being inadvertently removed.