Armless Spectacles Bridge Folding Lines Rigidity
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Solution Overview
Problem
Armless spectacles made from a single piece of material lack rigidity and stability, making them prone to bending and difficult to store flat, with limited nose pad surface area affecting reliability and handling.
Innovation Solution
Incorporating stabilizing means with multiple folding lines in the bridge and fastening areas to enhance rigidity and stability, allowing the spectacles to transition between a flat storage state and an assembled state for use, while maintaining optical area integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If armless spectacles are made from a single piece of material, then manufacturing is cheaper and simpler, but the spectacles lack rigidity and bend perpendicularly when subjected to force
Solution Approach 1:
The bridge area is segmented into multiple folding lines (first folding line and second folding line) that create distinct structural zones. This segmentation allows each zone to contribute differently to the overall rigidity, with the first folding line providing flexibility for assembly and the second folding line providing stability during use, thereby resolving the contradiction between manufacturing simplicity and structural rigidity.
Solution Approach 2:
The invention transitions from a two-dimensional flat sheet to a three-dimensional structured form by introducing folding lines that create perpendicular planes. The bridge area folds to form surfaces that are substantially perpendicular to the plane of optical properties, adding dimensional complexity that enhances rigidity while maintaining the single-piece manufacturing advantage.
2Ease of manufacture
If the spectacles are made from a single piece of material, then they can be manufactured simply, but they cannot be stored flat in books or wallets
Solution Approach 1:
The bridge area is designed with folding lines that enable dynamic transformation between two stable states: a flat configuration for storage and a three-dimensional configuration for use. The folding structure allows the spectacles to adapt their shape based on functional requirements, resolving the contradiction between maintaining a flat storage profile and providing adequate structural form during use.
3Reliability
If the nose pads are made larger to improve fastening stability, then the optical areas are reduced
Solution Approach 1:
The nose pads are extended in the perpendicular dimension by incorporating folding lines that create surfaces extending away from the optical plane. This allows the pads to achieve greater length and projection for improved fastening stability without consuming additional lateral space that would reduce the optical area, effectively resolving the spatial conflict between pad size and optical area.
4Ease of manufacture
If the spectacles are made from a single piece without arms, then they are easier to manufacture, but they are difficult to handle during placement and removal
Solution Approach 1:
The fastening area is segmented with folding lines that create distinct functional zones, including handling means that provide dedicated surfaces for finger placement. This segmentation allows the fastening area to serve multiple functions: providing grip surfaces for handling, maintaining structural stability during use, and enabling reliable attachment to the nose, thereby resolving the contradiction between manufacturing simplicity and handling ease.
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 spectacles achieve greater stability and rigidity, enabling reliable nose pad attachment and improved handling, while being easily collapsible for storage, thus addressing the limitations of prior art designs.
Implementation Method 1
the spectacles comprise: at least two optical areas in front of or around the eyes; at least one bridge area between the at least two optical areas; a means of fastening to the nose; and at least one stabilising means that provides rigidity
Data Source
AI summary
This invention refers to armless spectacles made from a sheet of material that includes at least a second folding line in stabilisation means. The invention proposes several methods of ensuring the second line and offering even greater rigidity. The spectacles can be converted from a non-functional state into a functional assembled state suitable for use by manipulating the configuration of at least one stabilising means in the bridge area. The spectacles have an enhanced rigidity thus increasing the overall stability of the spectacles during use. They can be presented basically flat for storage or transport and be easily manipulated to achieve the configuration for use. The spectacles may further present enhanced fastening and handling means that increase fastening stability as well as easy placement and removal of the spectacles on and from the nose, which further enhances reliability during use.