Motorcycle Helmet Visor Assembly with Removable Tacky-Spacer Attachment
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Solution Overview
Problem
Existing visor assemblies face challenges in efficiently and reliably attaching overlay-visors to shield-visors without compromising structural integrity, particularly in flexible and inflexible visors, and require complex manufacturing processes that affect safety certifications.
Innovation Solution
The use of a tacky elastomeric spacer or gasket, applied to the overlay-visor, provides a non-permanent adhesive attachment to the shield-visor, eliminating the need for mechanical fasteners and allowing for easy replacement and repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical fastenings are used to attach overlay-visor to shield-visor, then reliable attachment is achieved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent replaces mechanical fastening systems (screws, clips, latches) with a chemical bonding system using adhesive material applied to the overlay-visor. This substitution eliminates complex mechanical components while achieving reliable attachment through adhesive bonds that can be as strong as mechanical fastenings when properly applied.
Solution Approach 2:
The invention extracts and removes the mechanical fastening components from the visor assembly system. By eliminating screws, clips, and other mechanical fasteners, the design simplifies the overall structure while relying on adhesive bonding to provide the necessary attachment strength and reliability.
2Reliability
If mechanical fastenings are used to attach overlay-visor to shield-visor, then secure attachment is achieved, but ease of manufacture deteriorates
Solution Approach 1:
The patent replaces complex mechanical fastening operations (drilling, screwing, clipping) with a simpler adhesive application process. The overlay-visor is prepared with adhesive material in a straightforward manner, eliminating the need for precise mechanical assembly steps and reducing manufacturing complexity while maintaining secure attachment.
3Ease of operation
If adhesive material is applied to overlay-visor, then ease of operation and replacement is improved, but attachment reliability may deteriorate
Solution Approach 1:
The patent optimizes the adhesive material parameters including type of adhesive, application thickness, curing conditions, and surface preparation to achieve the highest possible bond strength. By carefully controlling these parameters, the adhesive bond provides reliability comparable to mechanical fastenings while enabling easy removal and replacement when needed.
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
This method ensures reliable, removable, and visually unobtrusive attachment of overlay-visors, preventing condensation and maintaining structural integrity while meeting safety standards.
Implementation Method 1
The use of a tacky elastomeric spacer or gasket, applied to the overlay-visor, provides a non-permanent adhesive attachment to the shield-visor
Data Source
Figure 1~2
Figure 3a~3e
Figure 4~4b
AI summary
There is provided a visor assembly, preferably for the motorcycle helmet, comprising a shield-visor having a surface, an overlay-visor (6) adapted to be releasably attached to the shield-visor (2), the overlay-visor comprising a viewing area, a spacer (7) with a tackified distal surface gasket (11), releasably adhering the overlay-visor to the surface of the shield-visor.