Magnetic Door Retention for Reusable Vehicle Opening Alignment

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Solution Overview

Problem

Existing vehicle door retention clips are typically one-time use, prone to deformation, breakage, and require additional tools for installation and removal, leading to waste, increased costs, and paint damage.

Innovation Solution

A reusable magnetic device with Rare Earth magnets and a non-deformable design that securely attaches to vehicle doors and bodies without tools, allowing for easy installation and removal, and is resistant to environmental conditions and high temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If deformable retention clips are used to temporarily retain vehicle opening elements, then the clips can be easily installed and removed, but the clips are prone to breaking and cannot be reused

Engineering Contradiction:
Improveease of installation and removalVSAvoidreusability and resistance to breaking
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical deformation-based retention system with a magnetic field-based retention system. The magnetic device uses magnetic attraction forces to hold the opening element in the closed position without requiring physical deformation or interference relationships, thereby eliminating the breaking issue while maintaining ease of installation and removal.

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

Solution Approach 2:

The patent changes the retention mechanism from mechanical deformation to magnetic field interaction. By utilizing magnetic field strength as the retention parameter instead of mechanical deflection, the system achieves both reusability and ease of operation, as magnetic force can be easily engaged and disengaged without physical stress on the components.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If deformable clips are used for door retention, then the clips can hook the door to prevent opening element from escaping, but the clips require additional tools to install and remove

Engineering Contradiction:
Improvedoor retention capabilityVSAvoidtool requirement for installation
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the tool-dependent mechanical installation process with a tool-free magnetic attachment process. The magnetic device can be simply positioned and attached to the door using magnetic attraction, eliminating the need for specialized installation tools while maintaining secure door retention during the painting process.

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

3Reliability

If deformable retention clips are used, then the clips can create an interference relationship to secure the door, but the clips may chip paint finish or contaminant due to surface wear

Engineering Contradiction:
Improvedoor securityVSAvoidpaint finish damage and contamination
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces direct mechanical contact and interference relationships with magnetic field interaction. The magnetic device retains the door through magnetic attraction without requiring physical interference or deformation, thereby eliminating surface wear, paint chipping, and contamination issues while maintaining secure door retention.

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

4Ease of manufacture

If single-use clips are used for door retention, then the clips can be discarded after one use, but this results in waste and increased material costs

Engineering Contradiction:
Improvesimplicity of replacementVSAvoidmaterial waste
Core Design Contradiction:
Ease of manufactureVSLoss of substance

Solution Approach 1:

The patent transforms the single-use disposable clip into a reusable magnetic device that can be recovered and reused across multiple vehicles. The magnetic device maintains its retention capability after each use and can be easily removed, cleaned, and reinstalled on subsequent vehicles, eliminating material waste while keeping the system simple to operate.

Inventive Principle:
Principle #34Discarding and recovering

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 reusable magnetic device effectively maintains door alignment, reduces material waste, minimizes paint damage, and lowers operational costs by allowing for multiple uses without deformation or breakage, while being easy to install and remove by hand.

Implementation Method 1

A reusable magnetic device with Rare Earth magnets and a non-deformable design that securely attaches to vehicle doors and bodies without tools

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS11319008B2Reusable magnetic device for temporary retention of a vehicle opening element
Publication Date: 2022.05.03 AST ACME INC
  • US11319008B2 patent drawing
  • US11319008B2 patent drawing
  • US11319008B2 patent drawing

AI summary

A reusable magnetic device for temporary retention of a vehicle opening element in a closed position. The reusable magnetic device includes one or more magnets engaging at least one of the opening element and the fixed element of the vehicle in the closed position. The reusable magnetic device may include one or more pads to reduce the contact surface area between the device and either one or both of the opening element or fixed element.