Magnetic Door Guide System Reducing Wear and Noise

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Solution Overview

Problem

Existing gates, particularly high-speed doors, experience significant noise and mechanical stress due to guide roller systems, leading to wear and tear, which is not effectively addressed by current technologies.

Innovation Solution

The implementation of a guide system where two guide devices form a guide set on a common carrier that can be rotated or displaced, with a sliding piece to stabilize the door leaf and magnetic field generating devices for contact-free guidance, reducing noise and mechanical stress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If guide rollers are used to guide the door leaf movement, then the door can be guided along the specified path, but significant noise is generated and mechanical stress increases

Engineering Contradiction:
Improvedoor guidance reliabilityVSAvoidnoise and mechanical stress
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the traditional mechanical guide roller system with a magnetic field-based guidance system. Magnetic field generating devices create magnetic fields that interact with magnetic elements on the door leaf, providing contact-free guidance along the specified path. This eliminates mechanical contact, thereby reducing noise and mechanical stress while maintaining reliable door guidance.

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

Solution Approach 2:

The patent introduces magnetic fields as an intermediary between the guide system and the door leaf. Instead of direct mechanical contact between guide rollers and door leaf, magnetic fields serve as the mediating force to guide the door movement, reducing harmful mechanical interactions while maintaining control.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If guide rollers are attached to the door leaf, then the door movement can be guided, but considerable wear occurs on the guide arrangement

Engineering Contradiction:
Improvedoor guidance reliabilityVSAvoidguide arrangement service life
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent replaces the mechanical guide roller system with a magnetic field-based guidance system. Magnetic field generating devices create magnetic fields that interact with magnetic elements on the door leaf, providing contact-free guidance along the specified path. This eliminates mechanical contact, thereby reducing noise and mechanical stress while maintaining reliable door guidance.

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

Solution Approach 2:

The patent introduces magnetic fields as an intermediary between the guide system and the door leaf. Instead of direct mechanical contact between guide rollers and door leaf, magnetic fields serve as the mediating force to guide the door movement, reducing harmful mechanical interactions while maintaining control.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If a common carrier with two guide devices is used, then dimensional accuracy is maintained, but the device complexity increases

Engineering Contradiction:
Improvedimensional accuracyVSAvoidguide system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent divides the guide system into modular components: a common carrier holding two guide devices, each with magnetic field generating devices. This segmentation allows for pre-assembly and quality control of individual modules while maintaining overall dimensional accuracy. The modular design actually simplifies manufacturing and assembly compared to a fully integrated system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines two guide devices onto a single common carrier, which is then attached to the door leaf as one unit. This merging approach maintains the dimensional accuracy benefits of having two guide devices while simplifying installation and reducing the number of separate components that need to be precisely positioned during assembly.

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

This solution significantly reduces noise and mechanical wear while maintaining dimensional accuracy and ensuring reliable, low-wear door operation, even at high speeds.

Implementation Method 1

at least one magnetic field generating device on the door leaf side and at least one magnetic field generating device on the web side are provided, which are designed to provide contact-free guidance of the door leaf movement

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

magnetic field generating devices being designed to provide contact-free guidance of the door leaf movement

Methodology Applied
Scientific EffectMagnetic repulsion: Ion Repulsion/Attraction

Data Source

PatentEP3775463B1Gate with guide arrangement
Publication Date: 2023.08.09 SEUSTER
  • EP3775463B1 patent drawingFigure 1
  • EP3775463B1 patent drawingFigure 2
  • EP3775463B1 patent drawingFigure 3

AI summary

The invention relates to a door comprising a door leaf (10) which can be moved between an open position and a closed position and a guide arrangement for guiding the movement of the door leaf along a predefined path between the open position and the closed position, wherein the guide arrangement has at least one guide web (100) which is arranged fixedly with respect to a wall opening, extends at least along a portion of the predetermined path, and has two outer boundary surfaces (102, 104) and at least two guide devices (32, 34) which are fastened to the door leaf (10), wherein a first outer boundary surface (102) of the guide web (100) forms a guide surface for a first guide device (32) and the second outer boundary surface (104) of the guide web (100) forms a second guide surface (104) for a second guide device (34). Magnetic devices (1000, 1010, 1100) can be arranged on the door leaf and on the guide bar for guiding in a contactless manner.