Quick-Release Eyeglass Frame Coupling via Pivot Pin Mechanism
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Solution Overview
Problem
Conventional eyeglasses designs rely on screws for securing bows to the frame, which can be cumbersome and lack ergonomic appeal, necessitating a screwless quick-release mechanism for improved ergonomics.
Innovation Solution
The eyeglasses incorporate pivot coupling components with pin portions and limiting portions that allow for a quick-release, screwless connection between the lens frame and frame coupling blocks, enabling relative pivoting movement and easy adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to secure bows to the frame, then the connection is secure and reliable, but the operation becomes cumbersome and lacks ergonomic appeal
Solution Approach 1:
The coupling mechanism is divided into separate components: a frame coupling block integrated with the bow, and a corresponding coupling unit in the lens frame. These segmented parts can be independently positioned and then quickly connected through the pivot coupling mechanism, eliminating the need for screws while maintaining secure attachment.
Solution Approach 2:
The coupling unit incorporates a pivot coupling mechanism with a pin portion and limiting portion that allows dynamic movement. The pin can pivot within the limiting portion to enable quick attachment and detachment of the bow, transforming the static screw connection into a dynamic quick-release system that improves ease of operation.
2Ease of operation
If a quick-release mechanism is implemented, then ease of operation is improved, but device complexity increases due to additional pivot coupling components
Solution Approach 1:
The frame coupling block is integrally formed with the bow, merging two components into one. Similarly, the coupling unit is integrated into the lens frame structure. This merging reduces the overall number of separate parts and simplifies the device complexity while maintaining the quick-release functionality.
Solution Approach 2:
The pivot coupling mechanism serves multiple functions: it enables quick attachment, allows for easy detachment, and provides secure connection during wear. This multi-functional design eliminates the need for separate mechanisms for each function, thereby reducing device complexity while improving ease of operation.
3Ease of operation
If pivot coupling components are added for quick-release functionality, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The pin and limiting portion are designed with specific local geometric features that guide their alignment during assembly. The limiting portion includes a pin receiving space with defined dimensions and orientation, creating localized precision requirements only where needed for the pivot coupling, rather than requiring high precision throughout the entire device.
Solution Approach 2:
The frame coupling block and coupling unit are pre-positioned in their respective frames during manufacturing. This preliminary positioning ensures that when the components are assembled, the pin and limiting portion are already in correct alignment, reducing the manufacturing precision requirements during the final assembly process.
Data Source
AI summary
An eye gear includes a lens frame, a support unit having a pair of frame coupling blocks, and a pair of coupling units, each connecting pivotally one end of a respective one of the frame coupling blocks to a corresponding one of two ends of the lens frame and including a first pivot coupling component provided on one of the lens frame and the respective one of the frame coupling blocks, and a second pivot coupling component provided on the other of the lens frame and the respective one of the frame coupling blocks. The first pivot coupling component includes a pin portion. The second pivot coupling component includes a limiting portion that defines a pin receiving space to receive removably and pivotally the pin portion.