Magnetic Retractable Line Divider Emergency Release Mechanism

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Solution Overview

Problem

Conventional retractable line dividers are difficult to quickly disengage in emergency situations such as fires or earthquakes, posing a risk due to their engagement mechanism.

Innovation Solution

A magnetic retractable line divider with a reel assembly featuring a magnetic portion, an elastic line divider belt, and a clock spring mechanism that allows the belt to automatically retract into the reel assembly when a force is applied, using magnetic attachment to other objects for line division.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an engagement mechanism (engaging piece and engaging slot) is used to connect the line divider belt, then the line divider can maintain stable connection, but it cannot be disengaged quickly in emergency situations

Engineering Contradiction:

Improveconnection stabilityVSAvoiddisengagement speed

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

The patent replaces the mechanical engagement system (engaging piece and engaging slot) with a magnetic field-based connection system. The magnetic portion on the reel assembly attracts the magnetic member on the line divider belt, providing stable connection without mechanical interlocking. This allows rapid disengagement by simply overcoming the magnetic attraction force, eliminating the need to manually manipulate engagement mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the connection parameter from mechanical interlocking to magnetic field interaction. By adjusting magnetic field strength and using elastic materials for the line divider belt, the system achieves both stable connection during normal use and rapid disengagement when needed, as the elastic belt can quickly return to its retracted state once magnetic attraction is overcome.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If a strong engagement mechanism is used to secure the line divider belt, then the connection is more reliable, but it increases the risk in emergency situations where quick release is needed

Engineering Contradiction:

Improveconnection reliabilityVSAvoidsafety risk in emergency

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the strong mechanical engagement system with a magnetic field-based connection that provides sufficient holding force during normal operation but can be easily overcome in emergency situations. The magnetic attraction provides reliable connection without the dangerous interlocking effect of mechanical engagement pieces and slots that could trap or injure persons during emergencies.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent converts the potential harm of strong engagement mechanisms (which could trap or injure during emergencies) into a beneficial magnetic field system that naturally allows quick release. The magnetic force provides stable connection during normal use but automatically releases when sufficient force is applied, turning the connection mechanism itself into a safety feature rather than a hazard.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 safe and rapid detachment of the line divider belt during emergencies, enhancing safety in daily and emergency situations by automatically retracting into the reel assembly when sufficient force is applied.

Implementation Method 1

the magnetic member of the line divider belt of another reel assembly, or the magnetic unit of the walls through magnetic force

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Implementation Method 2

the clock spring compressed or extended between the spindle and the lower locating disk is configured to provide an elastic force to retract or extend the line divider belt

Methodology Applied

Scientific EffectElastic force: Elasticity

Data Source

PatentUS10035677B2Magnetic retractable line divider

Publication Date: 2018.07.31 TERA AUTOTECH CORP

AI summary

A magnetic retractable line divider may include at least a reel assembly having a shell, and a magnetic portion is installed thereon. An elastic line divider belt is wound on the reel assembly, and a magnetic member is connected to a lateral end of the line divider belt. The line divider belt is configured to be horizontally pulled out from the reel assembly and travel a preferred distance to attach to a magnetic object, thus achieving line divider effect. Moreover, when someone pushes against the line divider belt with or over a preferred force, the magnetic member is configured to be detached from the magnetic object and automatically retracted into the reel assembly, thus avoiding accident.