Glasses Frame Lens Assembly with Adjustable Bridge Engagement
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Solution Overview
Problem
Existing glasses designs require replacement of the entire lens unit when only one lens is worn or vision correction changes, making them inefficient for adjustments.
Innovation Solution
A frame and lens assembly with adjustable engagement holes and protrusions allows for adjustable coupling tightness between the frame and lenses, enabling separate lens replacement and easy assembly, suitable for both single-piece and separate lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a lens unit with two separate lenses is used, then only one lens can be replaced when worn, but the lens unit cannot be received between the groove and support groove of the frame
Solution Approach 1:
The patent divides the lens assembly into two independent separate lenses instead of a single integrated lens unit. Each lens can be independently removed and replaced by detaching from the bridge, allowing selective replacement of only the worn lens while maintaining compatibility with the frame's groove and support groove structure.
Solution Approach 2:
The patent extracts the bridge component as a separate element that connects to the frame independently. The bridge with attached lenses can be removed from the frame's groove and support groove assembly, enabling easy lens replacement while maintaining frame compatibility. The bridge acts as an intermediary that can be detached and reattached.
2Ease of repair
If a lens unit with two separate lenses is used, then only one lens can be replaced when worn, but the assemblage between frame and lenses becomes complex
Solution Approach 1:
The patent introduces the bridge as an intermediary component between the frame and the separate lenses. The bridge simplifies the assembly process by providing a unified structure that connects to the frame's groove and support groove, while allowing individual lenses to be attached or detached from the bridge without affecting the frame connection.
3Ease of repair
If adjustable coupling tightness is implemented, then lens replacement becomes easier, but the structure becomes more complex
Solution Approach 1:
The patent implements a dynamic engagement system where the bridge can be easily inserted into and removed from the frame's groove and support groove. The engagement structure allows for simple assembly and disassembly movements, providing adjustable coupling tightness through the natural fit of the bridge in the groove structure without requiring complex fastening mechanisms.
Data Source
AI summary
An assembly for glasses includes a frame having a top rod. A seat is formed on a bottom of the top rod. The seat includes a first engagement hole having first and second wider portions and a narrower portion located between the first and second wider portions. A first connecting rod extends from a top of a bridge and has a protrusion received in one of the first and second wider portions. The first protrusion is forcibly passable through the narrower portion into the other of the first and second wider portions, allowing adjustment in a spacing between the bridge and the top rod. Two grooves are defined in the bottom of the top rod. An abutment portion is formed in each groove. Two lenses are respectively received in the grooves. Each lens includes a protruded portion abutting the abutment portion of one of the grooves.