Screwless Eyeglass Hinge Assembly for Durable Temple Pivoting
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Solution Overview
Problem
Existing eyeglasses require complex assembly processes involving small screws or other components for connecting the temple to the front, which is delicate and often requires specialized assistance, and the hinge is prone to failure under stress.
Innovation Solution
A simplified hinge design using an L-shaped connecting element with a spherical retention and locking element, allowing the temple to be coupled directly to the lens without screws or adhesives, ensuring durability and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional hinges with screws, rivets, or bushings are used to connect the temple to the front of the eyeglasses, then the connection can be achieved, but the assembly process becomes complex and requires specialized technicians
Solution Approach 1:
The patent removes traditional fastening components (screws, rivets, bushings) from the hinge assembly, extracting only the essential connecting elements needed for the temple-to-front connection. This simplifies the assembly process while maintaining structural integrity
Solution Approach 2:
The hinge is designed to be self-assembling without requiring specialized tools or technicians. The temple can be coupled to the front by the user through simple manual insertion and engagement of the hinge components
2Reliability
If traditional small hinge components are used, then the connection is achieved, but the hinge becomes delicate and prone to failure under stress
Solution Approach 1:
The patent merges multiple traditional hinge components into a single integrated hinge structure. This unified design eliminates weak points between separate parts and improves overall strength and reliability under repeated stress from opening and closing operations
Solution Approach 2:
The hinge utilizes composite construction combining different materials with complementary properties, creating a structure that is both durable and resistant to the intense stresses of repeated use and excessive temple opening
3Productivity
If traditional hinge assembly methods are used, then the connection is secure, but production time increases
Solution Approach 1:
The hinge components are pre-configured and pre-positioned during manufacturing, allowing for rapid final assembly. The temple can be coupled to the front in a single quick operation without requiring multiple assembly steps or adjustments
Solution Approach 2:
By removing complex fastening mechanisms and retaining only the essential connecting elements, the patent dramatically reduces assembly time while maintaining secure connection
4Shape
If traditional hinge components are used, then the connection is achieved, but the aesthetics of the eyeglasses are compromised
Solution Approach 1:
The patent combines multiple visible components into a single streamlined hinge structure, reducing visual clutter and improving the aesthetic appearance of the eyeglasses while maintaining all necessary functional elements
Data Source
Figure 1~3
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Figure 6~7
AI summary
Eyeglasses (1) with simplified hinge, comprising a pair of lenses (2), a pair of temples (3) and a hinge for connection between each one of the temples and the lenses; the hinge comprises an element (7) for connecting the lens (2) and the temple (3), adapted to be connected to the lens at one end and provided, at the opposite end, with a portion (6) adapted to engage a retention and locking element (9), the temple (3) being provided with a cavity (4) adapted to accommodate and lock the retention and locking element (9), the retention and locking element (9) acting as a rotation fulcrum for the temple (3) with respect to the connecting element (7).