Magnetic Joint With Spherical Magnet For Articulation

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Solution Overview

Problem

Existing joint designs for figurines are susceptible to breakage and limited movement due to direct connection mechanical arrangements.

Innovation Solution

A magnetic joint system featuring a first component with a first interface, a second component with a second interface, a first magnet adjacent to the first interface, and a spherical magnet within a cavity in the second component, allowing for articulation and removable attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a direct connection mechanical arrangement is used for joints, then the structure is simple and easy to manufacture, but the joint is susceptible to breakage and has limited movement

Engineering Contradiction:
Improvejoint durabilityVSAvoidjoint structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the direct mechanical connection system with a magnetic field-based retention system. Magnets embedded in the joint components create magnetic attraction forces that hold components together without physical interlocking, eliminating mechanical stress concentration points and enabling greater movement freedom while maintaining joint integrity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces magnetic fields as an intermediary force between joint components. Instead of direct mechanical contact, the magnetic field acts as a mediator that provides retention force while allowing articulation, reducing wear and breakage risks associated with direct mechanical connections

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a direct connection mechanical arrangement is used for joints, then the manufacturing process is simple, but the range of articulation is limited

Engineering Contradiction:
Improverange of articulationVSAvoidjoint manufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By substituting mechanical constraints with magnetic retention, the joint achieves multi-directional articulation freedom. The magnetic field maintains connection while allowing components to move through a wider range of motions without mechanical interference, enhancing adaptability while keeping the manufacturing process relatively simple through magnet embedding

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If a magnetic retention system is used, then the joint allows wide range of movement and is more durable, but the structure becomes more complex

Engineering Contradiction:
Improvejoint durabilityVSAvoidmagnetic joint structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the retention function and articulation function into a single integrated magnetic joint system. The magnetic components are embedded directly within the joint structure, combining the benefits of magnetic retention with mechanical articulation in one unified design, reducing the need for separate retention mechanisms

Inventive Principle:
Principle #5Merging (Combining)

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 magnetic joint system provides a strong and flexible connection, allowing for a wide range of articulation without the risk of breakage, while maintaining the ability to easily attach and detach components.

Implementation Method 1

the spherical magnet is attracted to the first magnet to retain the first component to the second component

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS12318704B1Magnetic joint
Publication Date: 2025.06.03 PETERSON ADAM JOEL
  • US12318704B1 patent drawing
  • US12318704B1 patent drawing
  • US12318704B1 patent drawing

AI summary

A magnetic joint includes a first component having a first interface; a second component having a second interface; a first magnet adjacent to the first interface; and a spherical magnet within a cavity formed in the second component, the cavity adjacent to the second interface, the spherical magnet movable within the cavity such that the spherical magnet is attracted to the first magnet to retain the first component to the second component such that the second component is articulatable with respect to the first first component.