Eyeglass Lens Replacement Assembly with Multi-Point Locking
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Solution Overview
Problem
Existing eyeglass designs require tools for frame or lens replacement, which is time-consuming and inefficient.
Innovation Solution
A lens replacement assembly with a frame body featuring grooves and hollow portions for multi-point locking and positioning, allowing quick and tool-free lens replacement through protruding members and recesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive or screws are used to connect lenses and frame, then firm fixation is achieved, but tool requirement and replacement time increase
Solution Approach 1:
The frame is divided into multiple components (frame body, temple, bridge) with distinct connection structures. Each connection point uses a specific engagement mechanism (protrusions fitting into recesses) that allows both strong fixation and easy separation without tools, resolving the contradiction between strong connection and quick replacement.
Solution Approach 2:
Protrusions and recesses act as intermediary elements between the lens and frame. These intermediary structures enable firm fixation during normal use while allowing tool-free removal when replacement is needed, thus resolving the contradiction between strong fixation and easy replacement.
2Manufacturing precision
If connectors such as screws are used for positioning fastening parts, then positioning accuracy is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The invention extracts the essential function of positioning and fixation from complex screw connectors and replaces it with simple protrusion-recess engagement structures. This eliminates the need for additional fastening components while maintaining positioning accuracy, thereby reducing device complexity.
Solution Approach 2:
The protrusions and recesses are designed to automatically align and engage with each other during assembly, providing self-positioning and self-fixation functions. This eliminates the need for external tools and complex adjustment mechanisms, simplifying both the structure and the assembly process.
3Strength
If traditional adhesive connection is used, then firm fixation is achieved, but replacement speed decreases
Solution Approach 1:
The connection structure transitions from a static adhesive bond to a dynamic mechanical engagement system. The protrusions and recesses can be easily engaged and disengaged, providing both strong fixation during use and rapid replacement when needed, thus resolving the contradiction between connection strength and replacement speed.
Data Source
AI summary
A lens replacement assembly of eyeglasses is provided. The lens replacement assembly includes a frame body and a lens. The frame body includes two lower frame portions, a nose-bridge portion, two corner portions, two side rods each of which is connected between the lower frame portion and the corner portion, and a hollow portion formed on each of the side rods. The lens is mounted in the lower frame portions, the nose-bridge portion and the corner portions and having extended positioning portions able to be locked and positioned by the hollow portions. Thereby stable positioning and quick replacement are achieved by multi-point locking and positioning as well as easy release of the lens from engagement by pulling.