Earring Back Assembly with Integrated Spring Mounting
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Solution Overview
Problem
Existing earring and brooch backs have a high number of individual parts, leading to labor-intensive assembly and potential inaccuracies in part positioning over time, affecting the smooth operation of the back.
Innovation Solution
The design features a housing with a bottom shell and a top shell, along with a limited number of pressing elements and springs, which are guided by internal guide parts and positioned using protruding parts, simplifying assembly and ensuring accurate part alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple individual parts are used for spring-mounting pressing elements, then reliable spring mounting is achieved, but assembly becomes labor-intensive and time-consuming
Solution Approach 1:
The patent merges multiple spring mounting functions into a single integrated spring structure that simultaneously mounts both pressing elements. This consolidation reduces the number of separate components and assembly steps while maintaining the reliability of spring mounting, directly resolving the contradiction between reliable mounting and assembly efficiency.
2Reliability
If multiple individual parts are used for spring-mounting pressing elements, then reliable spring mounting is achieved, but positioning accuracy deteriorates over time due to wear
Solution Approach 1:
By integrating multiple spring mounting functions into a single spring structure with built-in positioning features, the patent eliminates the positioning errors that accumulate when multiple separate parts are used. The unified design ensures consistent positioning accuracy over time while maintaining mounting reliability.
3Device complexity
If a single M-shaped spring is used for spring-mounting pressing elements, then assembly is simplified, but positioning accuracy deteriorates due to spring wear
Solution Approach 1:
The patent applies local quality by incorporating specific positioning features (such as positioning protrusions and recesses) at critical locations within the integrated spring structure. This allows the spring to maintain simplicity while achieving accurate positioning, as the positioning functionality is locally enhanced rather than distributed across multiple separate parts.
4Productivity
If the number of parts is reduced, then assembly efficiency is improved, but positioning accuracy may deteriorate
Solution Approach 1:
The patent merges multiple functions into fewer parts while incorporating built-in positioning features that ensure accurate alignment. The integrated spring structure includes positioning protrusions and recesses that guarantee precise positioning despite the reduced number of components, thus maintaining positioning accuracy while improving assembly efficiency.
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
This design reduces the number of parts while maintaining accurate positioning and assembly efficiency, ensuring reliable operation of the earring or brooch back.
Implementation Method 1
at least one spring for spring-mounting the first and second pressing element in the housing
Data Source
AI summary
An earring or brooch back for receiving a post includes a housing having a bottom shell and a top shell. The bottom shell and the top shell are provided with mutually aligned openings for forming a passage for the post. A first and a second pressing element are positioned between the bottom shell and the top shell, and the first pressing element is provided with a first stop for the post and a first protruding part which protrudes from the housing. The passage lies between the first stop and the first protruding part, and the second pressing element is provided with a second stop for the post and with a second protruding part which protrudes from the housing. The passage lies between the second stop and the second protruding part, and at least one spring is provided for spring-mounting the first and second pressing element.