Rimless Glasses Press-Latch Lens Assembly for Tool-Free Changes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing glasses require a screw tool for assembly and disassembly, causing inconvenience and difficulty in lens replacement without the tool, and the process is time-consuming.
Innovation Solution
A rimless glasses design featuring a lens with a coupling portion and guide groove, a temple with a pivot section, and a coupling device with a receiving groove and pressing member, allowing tool-free assembly and disassembly through a pivot and latch mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw elements are used to firmly clamp the lens in the lens assembly holes, then the lens fixation reliability is improved, but the ease of operation deteriorates because a screw tool is required for assembly and disassembly
Solution Approach 1:
The patent replaces the screw-threaded mechanical connection system with a press-fit mechanical connection system. The coupling device includes a pressing member that can be inserted into the lens assembly hole and pressed against the lens to achieve firm clamping without requiring screw threads or a screw tool. This substitution maintains the reliability of lens fixation while dramatically improving ease of operation.
Solution Approach 2:
The coupling device is designed to be self-operating through a spring-loaded pressing member that automatically engages with the lens when inserted into the lens assembly hole. The spring mechanism provides automatic clamping force without requiring external tools or complex assembly procedures, making the device serve itself in the assembly process.
2Reliability
If screw elements are used to fix the lens, then the lens fixation strength is improved, but the loss of time increases due to the complexity of the screwing process
Solution Approach 1:
The patent replaces the multi-step screwing process with a single-step press-fit operation. The coupling device with its spring-loaded pressing member can be quickly inserted and engaged with the lens, eliminating the time-consuming process of threading and tightening screws while maintaining equivalent or superior fixation strength.
Solution Approach 2:
The spring mechanism in the coupling device is pre-loaded during manufacturing to provide immediate clamping force upon insertion. This preliminary preparation of the spring tension allows the coupling device to rapidly engage with the lens without requiring gradual tightening operations, significantly reducing assembly time while ensuring strong fixation.
3Reliability
If a screw tool is required for assembly, then the lens fixation reliability is improved through precise screwing, but the device complexity increases due to the need for tool kits
Solution Approach 1:
The patent eliminates the need for external screw tools by replacing the threaded connection system with an integrated spring-loaded pressing mechanism. The coupling device incorporates all necessary components (pressing member, spring, positioning structures) into a single self-contained unit that achieves reliable lens fixation without requiring separate tool kits or external devices.
Solution Approach 2:
The patent merges the functions of the coupling device, pressing mechanism, and clamping system into a single integrated component. The coupling device combines the positioning structure, spring-loaded pressing member, and lens-clamping function into one unified device, eliminating the need for separate tools and reducing overall system complexity while maintaining fixation reliability.
Data Source
AI summary
The invention relates to a rimless glasses press-to-change lens structure, which mainly forms a coupling portion on the outer side of the lens, and a guide groove is connected outward to a positioning hole arranged in the coupling portion. A front end of a receiving groove on an inner side of a coupling device is connected outwardly with an inserting slot for the coupling portion to be inserted. A pressing member is pivoted inside the receiving groove. A convex extension section is formed on the inner end face of the pressing member corresponding to the guide groove of the lens, and a latch part is formed on the outer end of the convex extension section. Therefore, during the assembly or replacement of the lens, there is no need for a corresponding tool kit, making it simpler and more convenient, and the assembly process can be completed more quickly and conveniently.