Compact Elastic Hinge for Quick-Assembly Glasses Legs
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Solution Overview
Problem
Existing quick-assembly leg technologies have a loose and non-compact elastic hinge structure, which affects the locking mechanism and restricts the application scope, making it difficult to achieve a compact and versatile design for glasses frames without tools.
Innovation Solution
A compact elastic hinge design featuring a double-tooth hinge, screw, spring core assembly, and leg, where a single-tooth frame is inserted into an elastic buckle with a core pin and spring, allowing for a secure and versatile connection that can be easily assembled and disassembled without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elastic plate comprises the elastic moving part and the elastic fastening part arranged in tandem, then the quick-assembly function is achieved, but the structure becomes loose and non-compact
Solution Approach 1:
The patent merges the elastic moving part and elastic fastening part into a single integrated elastic plate structure. The elastic plate is designed as one piece with the moving part and fastening part formed as continuous integral structures, eliminating the need for separate components and tandem arrangement, thus achieving a compact and integrated design while maintaining the quick-assembly function
Solution Approach 2:
The elastic plate is designed to perform multiple functions simultaneously: it provides both the elastic moving part for insertion/removal operations and the elastic fastening part for securing the hinge to the temple, all within a single component structure, reducing overall device complexity
2Reliability
If the hinge and hook are connected with restrictive configuration, then the assembly is secure, but the arc of leg closing up and hook opening affects the appearance and locking effect
Solution Approach 1:
The patent employs a dynamic hinge connection where the hinge can rotate relative to the mounting head, allowing the temple to move freely during closing and opening operations. This dynamic connection eliminates restrictive configurations, enabling natural movement arcs that maintain both secure locking when closed and aesthetic appearance during operation
Solution Approach 2:
The hinge connection allows for parameter changes in position and orientation during operation. The hinge can rotate through various angles, changing its spatial parameters to accommodate the natural arc of temple closing and opening while maintaining secure connection, thus resolving the conflict between locking reliability and appearance
3Stability of the object's composition
If the plane of hook is vertical intersected with the plane of hinge, then the connection is stable, but the screw connection method cannot be used, narrowing the application scope
Solution Approach 1:
The patent designs the hinge and mounting head connection to be orientation-independent, allowing the hinge to function effectively regardless of the relative orientation between the hook plane and hinge plane. This universal design enables the use of various connection methods including screw connections, thereby expanding the application scope and forming versatility while maintaining connection stability
Solution Approach 2:
The hinge connection is designed to accommodate dynamic orientation changes, allowing the hinge to adapt to different spatial configurations. This dynamic capability enables the use of screw connections and other fastening methods that require specific orientations, thereby expanding the range of applicable forms and connection methods while maintaining stable connection
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 design provides a compact, easy-to-process, and widely applicable elastic hinge that enhances the locking mechanism, allowing for various forms of quick-assembly legs with reliable disassembly and improved aesthetics by eliminating restrictive connections.
Implementation Method 1
a spring sleeved on the core pin; the spring core assembly includes a elastic buckle
Data Source
AI summary
The present invention directs an elastic hinge for quick-assembly leg including: a double-tooth of hinge, a screw, a spring core assembly and a leg; wherein the spring core assembly includes a elastic buckle, a single-tooth frame which is inserted in cavity of the elastic buckle, a core pin sleeved in a cavity of the elastic buckle which is formed after the single-tooth is assembled into the elastic buckle, and a spring sleeved on the core pin; the elastic buckle is provided with a fastening part and a leg is formed with locking part to engaged with the fastening part, and the removable part of the leg and the elastic hinge are assembled together.