Multi-Function Magnetic Decoupler for Retail Security Tags
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Solution Overview
Problem
Existing magnetically releasable security devices require specific magnetic field profiles for decoupling, necessitating multiple decouplers for different types of antitheft devices, which is inconvenient for point of sale operations.
Innovation Solution
A multifunction magnetic decoupler assembly featuring a center pole magnet with orthogonal adjacent magnets, creating a strong axial and transverse magnetic field gradient, allowing operation with single clutch, double clutch hard tags, and keeper boxes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single-type magnetic decoupler is used for each antitheft device, then the decoupling function is reliable and effective, but the device complexity and inventory requirements increase
Solution Approach 1:
The patent applies universality by designing a single magnetic decoupler that can operate with multiple types of antitheft devices (single clutch hard tags, double clutch hard tags, and keeper boxes). The decoupler generates multiple magnetic field profiles simultaneously through its magnet assembly configuration, allowing one device to perform functions previously requiring multiple specialized devices.
2Reliability
If multiple specialized decouplers are maintained for different security devices, then each device operates optimally, but the ease of operation and inventory management deteriorate
Solution Approach 1:
The magnetic decoupler is designed with a magnet assembly that generates multiple magnetic field profiles (first, second, and third profiles) simultaneously, enabling a single device to optimally operate different types of antitheft devices without requiring operators to switch between multiple specialized decouplers.
3Adaptability or versatility
If a single magnetic decoupler generates multiple magnetic field profiles, then the versatility and productivity improve, but the magnet assembly complexity increases
Solution Approach 1:
The magnet assembly is segmented into multiple magnets arranged in specific configurations (e.g., opposing pairs, orthogonal arrangements) to generate different magnetic field profiles. This segmentation allows each magnet or magnet group to contribute to specific field characteristics, enabling a single decoupler to serve multiple device types while maintaining manageable structural 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
Enables efficient decoupling of multiple types of magnetically operated security devices using a single decoupler, reducing the need for multiple decouplers and simplifying point of sale operations by generating optimal magnetic field gradients for various devices.
Implementation Method 1
creating a strong axial and transverse magnetic field gradient
Implementation Method 2
A magnet assembly according to one aspect of the invention for decoupling a plurality of different types of magnetically operated security devices includes a center pole magnet having a magnetic orientation along a first direction
Data Source
AI summary
A magnet assembly for decoupling a plurality of different types of magnetically operated security devices includes a center pole magnet having a magnetic orientation along a first direction. A plurality of magnets adjacent to and surrounding the center pole magnet define an opening above the center pole magnet. Each adjacent magnet has a magnetic orientation orthogonal to the first direction. An end pole magnet is disposed adjacent to one of the magnets adjacent to the center pole magnet. The end pole magnet has magnetic orientation opposed to the first direction.