Magnetic Animation of Flexible Elastomers

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing methods for animating flexible objects in amusement parks, such as those using embedded magnets, can cause the elastomer material to weaken and tear over time due to magnetic attraction forces.

Innovation Solution

Incorporating fine metal particles, like iron, into a flexible elastomer material that reacts to magnetic fields generated by drive magnets, allowing for the animation of sculpted characters or objects without the material weakening, using a combination of hard and electromagnets for control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a hard magnet is embedded within the flexible object to provide animation, then the object can be animated through magnetic attraction, but the elastomer material weakens and tears over time due to continuous magnetic force

Engineering Contradiction:
Improveanimation capabilityVSAvoidmaterial durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent removes the hard magnet from inside the elastomer object and places it outside on the display structure. This extraction eliminates the harmful magnetic force that was causing the elastomer to weaken and tear, while still allowing the object to be animated through magnetic attraction from the external magnet.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces fine metal particles as an intermediary between the external magnet and the elastomer object. These particles are embedded in the elastomer and respond to the magnetic field, transmitting the animation effect without requiring direct contact with the hard magnet, thus protecting the elastomer from degradation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If fine metal particles are blended with elastomer material, then magnetic forces are distributed evenly preventing material degradation, but the manufacturing process becomes more complex

Engineering Contradiction:
Improvematerial durabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses composite materials by blending fine metal particles with elastomer to create an iron-infused flexible material. This composite approach distributes magnetic forces evenly throughout the material, preventing localized degradation while maintaining flexibility and animatability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent changes the physical parameters of the elastomer by incorporating metal particles, which alters its magnetic properties and allows it to respond to magnetic fields. This parameter change enables the material to be animated without requiring embedded hard magnets, simplifying the overall manufacturing process.

Inventive Principle:
Principle #35Parameter changes

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 method allows for durable and long-lasting animation of flexible objects by distributing magnetic forces evenly, preventing material degradation and enabling nuanced movements through controlled magnetic fields.

Implementation Method 1

metal particles blended with the elastic base material may react to a magnetic field generated by a drive magnet positioned near the character

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

the metal particles blended with the elastic base material may react to a magnetic field generated by a drive magnet

Methodology Applied
Scientific EffectMagnetism: Magnetism

Data Source

PatentUS8651915B2Method and apparatus for control of a flexible material using magnetism
Publication Date: 2014.02.18 DISNEY ENTERPRISES INC
  • US8651915B2 patent drawing
  • US8651915B2 patent drawing
  • US8651915B2 patent drawing

AI summary

One embodiment may take the form of a flexible creation animated by magnets or electromagnets brought near the flexible creation. Iron particles blended with a flexible material of the flexible creation may interact with the magnetic fields generated by the magnets, causing the object or portions of the object to move toward or away from the controlling magnets, thereby animating the object.