Magnetic Eyewear Hinge with Snap Fit and Protective Shell
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Solution Overview
Problem
Traditional eyewear connection methods, such as screw structures, are insecure and difficult to disassemble, while magnetic connections lack protection for fragile magnets and fail to provide a firm connection, especially with heavy frames, leading to discomfort and low reliability.
Innovation Solution
A magnetic connection structure featuring a stainless iron upper hinge with a snap fit, a metal protective shell for the magnet core, and an elastic piece with a fixing piece that work together to ensure a secure and flexible connection, allowing easy assembly and disassembly while preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If magnetic connection is used to replace screw structure, then ease of disassembly is improved, but connection firmness deteriorates
Solution Approach 1:
The patent combines magnetic connection with snap fit mechanical structure to create a hybrid connection system. The magnetic connecting piece includes both a magnet core for magnetic attraction and a snap fit structure for mechanical interlocking, merging two different connection mechanisms to achieve both ease of disassembly and connection firmness simultaneously.
Solution Approach 2:
The magnetic connecting piece uses composite structure combining magnetic material (magnet core) with mechanical fastening elements (snap fit, elastic piece). This composite approach allows the connection to benefit from both magnetic attraction force and mechanical interlocking strength, resolving the contradiction between easy disassembly and firm connection.
2Device complexity
If magnetic connection structure is used without protective structure, then device complexity is reduced, but reliability deteriorates due to fragile magnets
Solution Approach 1:
The magnetic connecting piece is segmented into distinct functional components: the magnet core for magnetic connection, the metal protective shell for protection, the elastic piece for mechanical engagement, and the snap fit for securing. This segmentation allows each component to perform its specific function optimally while working together as an integrated system.
Solution Approach 2:
The metal protective shell is designed to surround and protect the fragile magnet core from damage before any harmful force can reach it. This protective structure acts as a cushioning barrier that prevents direct impact or stress on the magnet, ensuring its durability while maintaining relatively simple overall device complexity.
3Shape
If heavy fronts or temples are used, then appearance quality is improved, but connection firmness deteriorates with magnetic connection alone
Solution Approach 1:
The elastic piece is pre-formed with a curved shape that allows it to be inserted into the snap fit structure. When assembled, the elastic piece's inherent elasticity creates a pre-loaded mechanical engagement that works together with the magnetic force, providing enhanced connection firmness for heavier components before any stress is applied during use.
4Adaptability or versatility
If existing temples are unfolded to linear state, then adaptability is improved, but ease of operation deteriorates as they cannot be further bent
Solution Approach 1:
The hinge connection structure is designed to be dynamic rather than fixed. The magnetic connecting piece with elastic piece and snap fit allows the temple to maintain flexibility and adjustability even when unfolded, enabling continuous small adjustments for comfort while maintaining the ability to achieve linear positioning for versatility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a sturdy, reliable, and aesthetically pleasing connection that is easy to disassemble, protects the magnet core, and ensures a firm hold without compromising the frame or lens, enhancing the overall structural integrity and user comfort.
Implementation Method 1
a magnetic connection structure of an eyewear for solid connection
Implementation Method 2
the front end of said temple connecting piece is provided with an elastic piece and a fixing piece
Data Source
AI summary
This utility model discloses a magnetic connection structure of an eyewear for solid connection, comprising a front connecting portion and a temple connecting portion. The inner side of the front connecting portion is provided with an upper hinge having an upper hinge groove with a downward opening; the upper portion of the outer side of the front connecting portion is provided with an one step lower snap fit. The temple connecting portion comprises a temple connecting piece, a magnetic connecting piece and a lower hinge, wherein said magnetic connecting piece is fastened to the lower hinge, the front end of said temple connecting piece is provided with an elastic piece and a fixing piece, said elastic piece matches the snap fit, and the fixing piece is connected to the lower hinge. This utility model adds protection of the magnet core, the temples and the front would not detach, the temples are elastic and easy to assemble and disassemble. The entire structure is simple, firmly connected, not easy to break and thus highly reliable.