Armless Eyewear Adjustable Cord Retention
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Solution Overview
Problem
Traditional eyewear is uncomfortable due to external compression, heavy, prone to breaking, and has issues with retention, especially when worn for long periods or during physical activity, and can cause allergic reactions.
Innovation Solution
Armless eyewear design with adjustable cords that couple to end pieces of a frame without hinges or complex mechanisms, using sliding half knots and grip elements to adjust tension and position for comfort and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional eyewear with temple pieces is used, then retention to the wearer's face is improved, but external compression headaches and discomfort occur during extended wear
Solution Approach 1:
The patent removes the temple pieces from the eyewear design, extracting the source of compression and discomfort while retaining the essential function of holding lenses in place through alternative means (nose pads and retention cords)
Solution Approach 2:
The patent introduces retention cords as an intermediary element that provides securement without direct compression on the head. These cords wrap around the head to hold the eyewear in place, distributing pressure more evenly and avoiding the concentrated compression caused by temple pieces
2Strength
If traditional eyewear with temple pieces and hinges is used, then structural support is improved, but the hinges and temple pieces are prone to breaking and bending
Solution Approach 1:
The patent eliminates hinges and temple pieces from the design, removing the fragile components that are prone to breaking and bending while maintaining structural support through the frame design and retention cords
Solution Approach 2:
The patent uses flexible retention cords instead of rigid temple pieces. These cords can bend and flex without breaking, providing durability while maintaining the ability to secure the eyewear to the wearer's face
3Strength
If traditional eyewear with metallic or composite compounds is used, then structural integrity is improved, but allergic skin reactions occur
Solution Approach 1:
The patent removes metallic or composite compounds from the portions that contact the skin (temple pieces), eliminating the source of allergic reactions while maintaining structural integrity in the frame itself
Solution Approach 2:
The patent changes the material parameters of components that contact the skin, using hypoallergenic materials for nose pads and retention cords while maintaining structural integrity through the frame design
4Ease of manufacture
If traditional eyewear with fixed temple pieces is used, then manufacturing simplicity is improved, but adjustability for different wearers is reduced
Solution Approach 1:
The patent introduces adjustable retention cords that can be modified in length and tension to accommodate different head sizes and shapes, providing adaptability while maintaining relatively simple manufacturing processes
Data Source
AI summary
Embodiments are directed to eyewear. The eyewear may include a frame, a left cord, a right cord, and an adjustable coupler. The frame may have a left end piece and a right end piece. Each of the left and right end pieces may have one or more apertures. The left cord has a proximal end portion and a distal end portion. The proximal end portion of the left cord may extend through at least one of the one or more apertures in the left end piece. The right cord has a proximal end portion and a distal end portion. The proximal end portion of the right cord may extend through at least one of the one or more apertures in the right end piece. The adjustable coupler may couple the left cord to the right cord.