Adjustable Eyeglasses Cord with Resilient Fitting
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Solution Overview
Problem
Conventional eyeglasses cords lack adjustability in cord angle, can cause temple damage due to metal components, and have inconvenient assembly and disassembly processes.
Innovation Solution
An adjustable eyeglasses cord structure featuring two temple sleeves, spherical plugs, and retaining buckles, allowing for adjustable cord angles and preventing temple scratching through a flexible and resilient design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal ring body is used in the fitting portion, then the temple can be securely retained, but the temple may be scratched or damaged
Solution Approach 1:
The patent introduces a resilient fitting portion as an intermediary between the temple and the cord assembly. This resilient fitting portion acts as a mediator that provides secure retention through its elastic clamping force while simultaneously protecting the temple from scratching by avoiding direct contact with hard metal components. The resilient material absorbs potential damage that would otherwise be transmitted to the temple.
Solution Approach 2:
The patent replaces the durable but harmful metal ring body with a resilient fitting portion made of elastic material. This resilient component is designed to be replaceable and can be easily replaced if worn, prioritizing temple protection over the longevity of the fitting portion itself. The resilient material is sacrificed rather than the temple.
2Device complexity
If a fixed cord structure is used, then the assembly is simple, but the cord angle cannot be adjusted according to user need
Solution Approach 1:
The patent divides the cord assembly into separable segments: the cord, the resilient fitting portion, and the temple. This segmentation allows the cord angle to be adjusted by repositioning or reorienting the resilient fitting portion within the cord loop, while the overall assembly remains relatively simple. Each component maintains its basic function while enabling angular adjustment through their relative positioning.
Solution Approach 2:
The patent introduces dynamic adjustability by allowing the resilient fitting portion to be repositioned along the cord and rotated to different orientations. The elastic nature of the fitting portion enables it to accommodate different angles while maintaining secure retention. This dynamic capability allows users to adjust the cord angle according to their needs without complicating the overall structure.
3Stability of the object's composition
If a rigid cord structure is used, then the cord maintains its shape, but it cannot be deflected to adjust the cord angle
Solution Approach 1:
The patent employs a resilient fitting portion made of elastic material that combines flexibility with shape retention. This resilient component can be deflected and bent to adjust the cord angle, yet it naturally returns to its original shape, maintaining cord stability. The elastic material provides both the flexibility needed for angle adjustment and the memory to maintain a stable configuration once positioned.
Solution Approach 2:
The patent utilizes the elastic properties of the resilient fitting portion to change its physical parameters (shape, angle, position) on demand. By applying force to deflect the resilient fitting portion, users can adjust the cord angle, and the material's elastic recovery ensures the cord maintains its structural integrity and stable configuration when not being adjusted.
4Reliability
If a through hole with shrunk diameter is used to secure the steel cord, then the cord is locked in place, but the cord angle cannot be adjusted
Solution Approach 1:
The patent replaces the fixed rigid through hole with a dynamic resilient fitting portion that can change its configuration. The elastic material allows the cord to be locked securely through friction and elastic retention while simultaneously permitting angular adjustment by deforming the resilient fitting portion. The locking mechanism is dynamic rather than static, enabling both security and adjustability.
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
Enables user-adjustable cord angles, prevents temple damage, and simplifies assembly and disassembly with a flexible and safe design.
Implementation Method 1
a resilient fitting portion provided with a clamping force for clamping the temple
Implementation Method 2
Temple sleeve with flexibility can facilitate the in-out of the spherical plug
Data Source
AI summary
An adjustable eyeglasses cord structure is provided, which mainly comprises two temple sleeves, two spherical plugs, two retaining buckles and a cord. The open end of each temple sleeve has an accommodation space for receiving the temple and the tail end has a spherical chamber corresponding to the spherical plug. Both ends of the cord are inserted and fixed in the retaining buckles which are then disposed within the spherical plugs. Each spherical plug is disposed in the spherical chamber of the temple sleeve. A slot is provided in the spherical chamber for the cord to pass through. In this manner, a cord having stiffness can be deflected to adjust an angle adaptable to use. Temple sleeve with flexibility can facilitate the in-out of the spherical plug so as to enable the function of adjusting the cord angle and the convenience for both assembly and disassembly.