Adjustable Eyewear Restraint Straps for Position Adjustment
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Solution Overview
Problem
Eyewear tends to become misaligned or maladjusted during physical activities and is difficult to transition between operable and non-operable positions without completely disassociating from the user, and existing fasteners are cumbersome to adjust.
Innovation Solution
An adjustable eyewear restraint system with slidable and frictionally engaged straps that allow easy length adjustment, featuring pull tabs and frictional elements to secure eyewear in place without detachment, and optionally buoyant materials for water use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed-length fastener is used to secure eyewear, then the eyewear is prevented from falling to the ground, but the fastener cannot easily adjust the eyewear position and requires complete detachment to move the eyewear
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed-length fastener into an adjustable-length system. The strap incorporates a sliding mechanism with openings that allow the fastener length to be dynamically changed while maintaining continuous attachment to the eyewear. This enables the user to adjust the eyewear position along the strap without complete detachment, resolving the contradiction between security and ease of operation.
2Stability of the object's composition
If a fastening mechanism is designed to secure eyewear in an operable position, then the eyewear remains stable, but the mechanism becomes complex and difficult to adjust
Solution Approach 1:
The patent applies segmentation by dividing the continuous strap into discrete sections defined by openings. The sliding component can engage with different openings to create segmented length adjustments. This segmentation provides stable, predefined adjustment positions while keeping the overall mechanism simple and intuitive to operate.
3Ease of manufacture
If a single fixed-length strap is used, then the manufacturing process is simple, but the eyewear cannot be easily transitioned between operable and non-operable positions
Solution Approach 1:
The patent applies universality by designing a strap system that serves multiple functions: it secures the eyewear in an operable position, allows easy transition to a non-operable position, and provides adjustable intermediate positions. The sliding mechanism with multiple openings enables the single strap to adapt to various user needs and activities, enhancing versatility while maintaining relatively simple manufacturing.
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
The system securely holds eyewear in place while allowing easy adjustment between operable and non-operable positions, enhancing convenience and usability during various activities, including providing positive buoyancy for water-based use.
Implementation Method 1
Each opening can be sized and shaped to provide sufficient frictional force, between the opening and the respective strap slidably engageable there through, to retain the straps to each other about a wearer's head.
Data Source
AI summary
An adjustable eyewear restraint comprises a first strap having a first adjustment end and a first eyewear coupling end, and a second strap having a second adjustment end and a second eyewear coupling end. The straps are slidably and frictionally engageable to one another to allow adjustment of a length of the restraint by moving adjustment ends of the straps relative to each other. The straps can be slidably interwoven to each other about opening(s) of respective adjustment ends. The opening(s) slidably receive an opposing strap. A strap has a loop, coupleable to eyewear, that comprises first and second edges attached together to form an attachment portion substantially in-line with the first edge. A frictional element is frictionally and slidably coupleable to an earpiece to retain the loop and allow adjustment of a length of an eyewear retainer. Associated systems and methods are provided.