Screw-Free Eyeglass Frame Hinge With Segmented Tensioning
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Solution Overview
Problem
Existing eyeglass frames with screw-free hinge mechanisms face challenges in providing a secure and easy assembly connection between the frame and temple, often requiring the same material for the mount and connecting elements, limiting design flexibility and stability.
Innovation Solution
A recess in the receiving element of the eyeglass frame designed to securely hold a connecting element formed by two component parts, which are tensioned to prevent relative movement and ensure the connecting element cannot be removed entirely, allowing for a secure and stable joint without screws, enabling different material selection for the frame and temple.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a connecting element is integrally connected to the frame, then assembly is simplified, but the mount and frame must be made of the same material, limiting design flexibility
Solution Approach 1:
The connecting element is divided into two separate component parts that can be independently manufactured from different materials. These parts are then assembled together to form the complete connecting element, allowing the frame and temple to be made from different materials while maintaining assembly simplicity through the segmented design.
2Device complexity
If a screw-free hinge mechanism is used, then device complexity is reduced, but the connection stability and resistance to twisting forces may be compromised
Solution Approach 1:
The connecting element is segmented into two parts that can be assembled without screws, reducing complexity while maintaining stability through the tensioning mechanism.
Solution Approach 2:
The connecting element incorporates a tensioning mechanism that allows dynamic adjustment and adaptation to twisting forces. The two component parts can be tensioned relative to each other to provide stable resistance to twisting forces while maintaining a screw-free design.
3Ease of operation
If the temple is pivot-jointed upon a short end, then the temple can be easily attached, but the connection may be less stable under stress
Solution Approach 1:
The connecting element is divided into two component parts that can be easily assembled by inserting one into the other, providing easy attachment. The segmented design allows for a compact connection that maintains strength under stress through the tensioning mechanism.
Solution Approach 2:
The pivot joint design allows the temple to be easily attached and adjusted, while the tensioning mechanism provides dynamic stability under stress. The short end design combines ease of attachment with sufficient connection strength through the engineered tensioning system.
Data Source
AI summary
The present invention relates to an eyeglass frame having an earpiece each on the left and the right and having a frame comprising a receiving element each on the left and right for attaching the earpiece, wherein the receiving element has a recess opening in the direction toward the earpiece, a connecting element being located in said recess and comprising at least two individual components designed such that they captively hold the connecting element in the recess of the receiving element in the assembled state, forming the connecting element, by mutually tensioning the connecting element.