Snow Goggle Lens Retainer with Slanted Insertion Posts
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Solution Overview
Problem
Existing snow goggle lens securing methods either obstruct the wearer's vision or require precise manufacturing to ensure secure attachment, and existing retainers may not hold the lens tightly without tools.
Innovation Solution
A lens securing system using first and second retainers with slanted insertion posts and sections, and a strap with fixtures, which minimizes contact area and allows easy lens replacement without tools, ensuring secure attachment without obstructing vision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a channel with a block is used to secure the lens, then the lens is secured firmly to the frame, but the wearer's vision is blocked and narrowed
Solution Approach 1:
The retainer is divided into multiple components: a body portion, a head portion with engagement protrusions, and flexible arms with engagement feet. This segmentation allows the securing mechanism to be distributed around the lens periphery rather than requiring a large central block, thus maintaining vision while ensuring secure attachment.
Solution Approach 2:
The engagement feet are designed to extend laterally from the flexible arms and engage with notches on the lens edge. This extracts the securing function from the main retainer body and places it at the periphery, allowing the central vision area to remain unobstructed while maintaining firm lens securement.
2Ease of operation
If a retainer system is designed for easy lens replacement without tools, then the ease of operation is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The retainer incorporates flexible arms that can elastically deform during the engagement and disengagement process. This dynamic flexibility allows the engagement feet to tolerate minor dimensional variations in the notches and protrusions, reducing manufacturing precision requirements while still enabling secure attachment and easy tool-free replacement.
Solution Approach 2:
The engagement feet are designed with elastic flexibility, allowing them to change their physical state from a relaxed position to an engaged position. This parameter change enables the retainer to accommodate minor manufacturing tolerances and provides a secure engagement that can be easily released by applying force to the head portion.
3Device complexity
If the retainer has a compact and lightweight design, then the device complexity is reduced, but the securement strength may be compromised
Solution Approach 1:
The retainer concentrates its securing function at specific local points where the engagement feet contact the lens notches. Rather than distributing material uniformly throughout a large structure, the design places engagement elements only where needed at the periphery, achieving strong securement with minimal material and reduced complexity.
Solution Approach 2:
The retainer body is designed with a curved, arc-shaped structure that follows the periphery of the lens. This curved geometry provides structural efficiency, allowing the thin-walled retainer to maintain strength while minimizing material usage and overall complexity. The arc shape naturally distributes stresses during engagement and securement.
Data Source
AI summary
This invention relates to a means of securing a lens member into a snow goggle frame member, wherein the goggle frame member includes first insertion apertures, with first locating blocks at front edge, the lens member has a lens secured thereon, the lens includes first troughs to receive a corresponding first block therein, a pair of first rails are formed at respective sides of the first trough, each first rail has a first notch which includes a pair of second notches thereat, retainers are secured to the goggle frame and lens frame respectively, one end of the first insertion aperture includes a first insertion post at one end and a first insertion section at the other end thereof to receive the first insertion post therein, the first insertion section is then inserted into the first notch. The goggle may be replaced with various lenses and secured firmly.