Rimless Glasses Assembly With Metal-Plastic Reinforcement
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Solution Overview
Problem
Conventional rimless glasses suffer from weight issues due to metal components, which are heavy, and structural weakness due to plastic components, which are prone to deformation and breakage, leading to discomfort and assembly inconvenience.
Innovation Solution
A rimless glasses design incorporating a plastic assembly with embedded metal, featuring plastic fixing elements and a metal bridge body covered by a plastic sleeve, ensuring stability and strength while maintaining light weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal components are used for nose bridge and end pieces, then structural strength is improved, but weight increases causing discomfort
Solution Approach 1:
The patent applies composite materials by combining metal and plastic in a hybrid construction. The nose bridge and end pieces consist of metal cores providing structural strength, embedded within or covered by plastic sleeves that reduce weight. This composite approach allows the glasses to maintain the strength of metal components while significantly reducing the overall weight through the use of lighter plastic materials.
2Weight of moving object
If plastic components are used for nose bridge and end pieces, then weight is reduced, but strength and resistance to deformation deteriorate
Solution Approach 1:
The patent uses composite materials with metal cores embedded in plastic sleeves. The metal core provides the necessary structural strength and resistance to deformation, while the plastic sleeve reduces weight. This composite structure allows the nose bridge and end pieces to be lighter than pure metal components while maintaining adequate strength through the metal reinforcement.
3Strength
If screws and nuts are used to secure components, then assembly strength is improved, but assembly complexity and maintenance difficulty increase
Solution Approach 1:
The patent merges the fastening function into the composite structure itself. The metal core is integrated within the plastic sleeve, creating a unified component that eliminates the need for separate screws and nuts. The metal core acts as both the structural element and the anchoring mechanism, reducing assembly complexity while maintaining connection strength through the embedded construction.
Data Source
AI summary
A pair of a rimless glasses includes two lenses having two first perforations and two second perforations on two side edges respectively, and a first fixing element and a second fixing element on the inner side surfaces, a nose bridge having a metal bridge body with two first tooth nails engaged into the two sleeves of the first fixing element, covered by a plastic bridge sleeve, two end pieces having a metal inner body with two second tooth nails engaged into the two sleeves of the second fixing element, covered by a plastic end piece sleeve and two temples. Two sleeves of the first fixing element and the second fixing element are respectively inserted into the two first perforations and the second perforations of the lenses. The two lenses is connected by the nose bridge. The two temples are respectively assembled on the pivot lugs of the two end pieces.