Repositionable Visor Retention System Using Solvent-Activated Adhesive Gaskets
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Solution Overview
Problem
Existing retention systems for devices on visors, such as motorcycle helmets, either damage the visor or the device when removed, or require irreversible modifications like drilling, lacking a solution for repositioning without altering features.
Innovation Solution
A repositionable retention system using a gasket made of materials like closed cells acrylic foam, polyethylene, or polyurethane, with adjustable adhesive properties, allowing for secure attachment and detachment without damaging the visor or device, utilizing solvent treatments and double-sided adhesives to maintain effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If tenacious adhesive materials are used to install screens inside the visor, then the screens are securely attached, but the screens cannot be removed without suffering alterations and cannot be utilized afterwards
Solution Approach 1:
The adhesive system transitions from a static permanent bond to a dynamic reversible bond. The visor surface treatment allows the adhesive to be activated (strong bonding) or deactivated (gentle release) as needed, enabling the screen to be securely attached during use and easily removed for repositioning or replacement without damage.
Solution Approach 2:
The adhesive properties are changed by treating the visor surface with specific solvents or chemicals that temporarily modify the surface energy. This allows the adhesive to be adjusted between high-bonding mode (when the visor is clean) and low-bonding mode (when treated with release agents), enabling controlled attachment and detachment cycles.
2Strength
If mechanical retention systems are used that require irreversible operations like drilling the visor, then secure attachment is achieved, but the functionality of the visor is compromised
Solution Approach 1:
The mechanical retention system (drilling, screws, clips) is replaced with a chemical adhesive system. This substitution eliminates the need for irreversible mechanical modifications to the visor while maintaining secure attachment through the adhesive bond, preserving the visor's optical and structural integrity.
Solution Approach 2:
An adhesive intermediary layer is introduced between the screen and the visor surface. This adhesive acts as a mediator that provides secure attachment without requiring direct mechanical connection or modification of the visor, thus preserving the visor's original functionality while achieving the desired retention strength.
3Adaptability or versatility
If screens are designed for universal compatibility, then they can be used with different visors, but they require permanent adhesive materials that prevent repositioning
Solution Approach 1:
The adhesive system is made dynamic and reversible, allowing screens to be easily installed and removed across different visors. This enables universal compatibility to be maintained while adding the capability for repositioning and replacement, transforming the adhesive from a permanent constraint to a controllable bonding mechanism.
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 secure, repeatable attachment and detachment of devices like solar filters and anti-glare screens without altering the visor or device features, extending their usability and preventing premature replacement, while maintaining the visor's functionality.
Implementation Method 1
A gasket (2), made of material having adhesive features on at least one of his own surfaces, like for example a closed cells acrylic foam layer
Data Source
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AI summary
The present invention generally relates to a retention system that could be used to install in the internal surface of face-shields (7), for example of motorcycle helmet's visors, several devices, like screens working as solar filters, anti-glare screens, antifog screens, anti-scratch screens or different types of screens or devices, without alter or modify the characteristics of the visor (10) on which they are applied. The screen and the visor itself are this way preserved from damages, alterations and/or early substitutions. Such a system is constituted by at least one screen (1) and at least one gasket (2) with adhesive characteristics that can make such screens removable and re- positionable. This system can be created exploiting the characteristics of some materials.