Eyeglass Joint Using Rubber-Elastic Spring Element
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Solution Overview
Problem
Conventional eyeglass joints are prone to damage from overstretching, over-compressing, and transverse forces, require precise manufacturing, and are difficult to maintain or adapt to individual needs, with existing solutions being complex, expensive, and hard to service.
Innovation Solution
An eyeglass joint using a closed annular rubber-elastic spring element connecting two joint parts, allowing for easy assembly, maintenance, and adaptation, with a modular design that absorbs forces outside the typical movement plane without a rigid axis, enabling users to adjust and replace components independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple hinge joint with axle pin is used, then the structure is simple and easy to manufacture, but it is prone to damage from overstretching, over-compressing, and transverse forces
Solution Approach 1:
The patent replaces the rigid axle pin with a flexible spring element that can deform elastically. This spring element absorbs excessive forces through its inherent flexibility, preventing damage to the joint structure while maintaining simplicity of manufacture. The spring element's elastic properties allow it to accommodate overstretching and over-compressing without failing.
Solution Approach 2:
The patent changes the mechanical parameter from rigid connection to elastic connection. By using a spring element instead of a fixed axle pin, the joint transitions from a rigid mechanical connection to a flexible elastic one, enabling the structure to absorb and dissipate forces that would otherwise cause damage.
2Reliability
If a metallic clamp connection is used, then the joint can withstand overstretching, but it is difficult to assemble and maintain and requires precise manufacturing
Solution Approach 1:
The patent extracts the complex metallic clamp connection mechanism and replaces it with a simple spring element. This removal of the complex clamping mechanism eliminates the need for precise manufacturing and complex assembly while maintaining the ability to withstand overstretching forces through the spring's elastic properties.
Solution Approach 2:
The patent employs a simple, easily replaceable spring element instead of a complex metallic clamp connection. The spring element is designed to be inexpensive and simple to replace, eliminating the need for complex assembly and maintenance procedures while providing sufficient reliability for the application.
3Adaptability or versatility
If a ball and sleeve connection with metallic spring is used, then the joint allows movement outside the movement plane, but it is complex and expensive to produce and assemble
Solution Approach 1:
The patent merges the functions of multiple separate components (ball, sleeve, metallic spring) into a single integrated spring element. This unified design maintains the ability to accommodate movements outside the movement plane while dramatically reducing the number of parts and simplifying production and assembly processes.
Solution Approach 2:
The spring element serves multiple functions simultaneously: it provides the necessary flexibility to accommodate off-plane movements, acts as the connection element between joint parts, and eliminates the need for separate balls and sleeves. This multi-functionality reduces complexity while maintaining adaptability.
4Stability of the object's composition
If a rigid axis connection is used, then the joint is stable, but it cannot be adapted to individual needs and requires precise manufacturing
Solution Approach 1:
The patent transforms the static rigid axis connection into a dynamic elastic connection. The spring element can dynamically adjust its stiffness and deformation to accommodate different usage conditions and individual wearer needs, while maintaining stability through its elastic recovery properties.
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 solution provides a robust, cost-effective, and user-friendly eyeglass joint that minimizes damage from unintended movements, allows easy maintenance, and can be customized to fit individual needs without requiring complex assembly or specialized tools.
Implementation Method 1
at least one spring element (16, 102, 104, 216) attached to both joint parts (12, 14), wherein the spring element (16, 102, 104, 216) preferably has a closed annular shape and/or is rubber-elastic
Data Source
AI summary
The invention relates to an eyeglass joint for an eyeglass frame with a first joint part assigned to a rim of the eyeglass frame, and a second joint part assigned to an eyeglass temple of the eyeglass frame, wherein the joint parts are movably connected to each other by means of at least one spring element attached to both joint parts, wherein the spring element preferably has a closed annular shape and/or is rubber-elastic. Furthermore, the invention relates to a joint set, an eyeglass frame, an eyeglass frame set, and the use of a spring element.