Flexible Eyeglass Temple Assembly With Preloaded Slider Spring
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Solution Overview
Problem
Existing flexible temples for eyeglasses require special tools for spring preloading, leading to complex assembly, high costs, and delicate machining, and lack adjustability in overtravel angle.
Innovation Solution
A flexible temple design with a fork-shaped end and a slot accommodating a preloaded spring, allowing easy assembly and adjustability through a slider mechanism without the need for special tools, using a pin or screw for secure coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional slider system with preloaded spring is used, then the temple provides elastic flexibility, but the assembly requires special tools and complex multi-step procedures
Solution Approach 1:
The spring is preloaded and positioned within the slider before assembly, so that during final assembly the spring is already in its correct preloaded state ready to provide elastic flexibility immediately upon installation
Solution Approach 2:
The slider and spring assembly is designed as an integrated unit where the spring is permanently positioned within the slider, combining two separate components into one pre-assembled unit that simplifies the overall assembly process
2Reliability
If a traditional slider system with retention element is used, then the temple achieves elastic coupling, but high-precision machining is required
Solution Approach 1:
The temple is divided into distinct modular components (temple body, slider, spring, retention element) that can be manufactured separately with standard precision, then assembled together to achieve the required elastic coupling function
Solution Approach 2:
The slider acts as an intermediary component between the temple body and the spring, providing a standardized interface that reduces the machining precision requirements for the retention element and slot
3Adaptability or versatility
If a traditional flex hinge system is used, then the temple can be divaricated beyond normal position, but the hinge components are damaged or broken
Solution Approach 1:
The system allows change in the angular position parameter of the temple through elastic deformation of the spring, enabling overtravel beyond the normal position while the spring absorbs the mechanical stress and prevents damage to rigid hinge components
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
Facilitates easy assembly, reduces costs, and provides adjustable overtravel angle with enhanced durability and aesthetic appeal, while maintaining elasticity and reliability.
Implementation Method 1
the movement of the temple to open beyond its normal position, known as overtravel, is provided by virtue of a rotation cam of the element of the front that entrains the slider outward, by virtue of the compression of the spring that is coupled to the temple by means of a retention element
Implementation Method 2
by virtue of the compression of the spring that is coupled to the temple by means of a retention element
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A flexible temple (1) for eyeglasses, comprising a temple body (2) which has a fork-shaped end (2a, 2b) adapted to form a slot (4) within which a slider (6) can slide in contrast with the action of elastic means (7), the elastic means (7) being accommodated in a preloaded condition in the slider (6).