Double Lock Mechanism for Earrings with Dual-Action Release
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Solution Overview
Problem
The traditional mechanism for opening and closing hinged earrings is often difficult to operate effectively, as it requires precise alignment and force application to disengage the catch, leading to potential unintended release.
Innovation Solution
A double lock mechanism featuring a post section with recessed slots and a locking section with pivotally coupled locking bars and a spring, which engages the post slots to provide a secure and dual-action locking system, requiring simultaneous force application on both grip surfaces to release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional single catch mechanism is used, then the structure is simple, but the reliability of fastening is insufficient and accidental disengagement may occur
Solution Approach 1:
The locking mechanism is divided into multiple independent locking bars (at least two), each capable of engaging with the post slot separately. This segmentation allows the system to maintain high reliability through multiple engagement points while keeping each individual locking bar structurally simple and easy to manufacture.
2Reliability
If a secure locking mechanism is implemented, then accidental disengagement is prevented, but the ease of operation may be reduced
Solution Approach 1:
Multiple locking bars are combined into a single integrated locking section that engages with the post slot simultaneously. The spring mechanism combines the forces of multiple locking bars, allowing them to work together as a unified system. This merging maintains security while simplifying the user action to a single pulling motion on the grip surface.
Solution Approach 2:
A spring mechanism acts as an intermediary between the locking bars and the post slot, providing continuous biasing force to maintain engagement. The spring mediates the interaction between multiple locking bars, allowing them to flex and adjust while maintaining reliable contact with the post slot, and translates user force on the grip surface into coordinated movement of all locking bars.
3Reliability
If multiple locking bars are used to engage post slots, then the fastening security is improved, but the device complexity increases
Solution Approach 1:
Each locking bar is designed as a multi-functional component that serves as both a locking element and a lever for user interaction. The grip surface on each locking bar allows direct user manipulation, eliminating the need for separate actuating mechanisms. This universality reduces overall device complexity by making each component perform multiple functions.
Solution Approach 2:
The locking bars are nested within the locking section housing, with the spring mechanism nested between them. The post slot is recessed into the post, creating a nested arrangement where the locking tips engage within the recessed slot. This nesting compactly arranges multiple components in a space-efficient manner, reducing overall device complexity.
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 double lock mechanism ensures secure fastening and easy, controlled unfastening of earrings by engaging both post slots simultaneously, preventing accidental disengagement and enhancing user experience.
Implementation Method 1
The spring may have two ends, where each end is attached to each of the spring tips, and where the spring is configured to spread the spring tips away from each other and bias the locking bars in an engaged orientation relative to the post slots
Implementation Method 2
Each of the inwardly facing sides may have a first end having a locking tip configured to engage one of the plurality of post slots
Implementation Method 3
the grip surfaces may have a rough finish. In at least one embodiment, the rough finish may be bumps, grooves, or a similarly textured surface
Data Source
AI summary
A double lock mechanism is provided that comprises a post section comprising a locking post and a plurality of post slots recessed into the locking post; and a locking section configured to engage the post section. The locking section comprises an insertion cavity configured to receive the locking post, a plurality of locking bars each having locking tips, and a spring configured to bias the locking bars in an engaged orientation relative to the post slots such that the locking tips engage the post slots; and wherein the locking tips are configured to disengage the post section when an external force is applied to the locking bars.