Magnetic Gate Locking for Overhead Lifting Rails

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Solution Overview

Problem

Existing overhead lifting rail systems for healthcare facilities face challenges in preventing lifting carriages from leaving the rail, particularly when transitioning between fixed and traverse rails, leading to wear, noise, and installation complexity.

Innovation Solution

The use of magnetic locking pins and gate magnetic portions allows for secure engagement of rail portions without physical interaction, reducing wear and installation tolerances, and mitigates noise and misalignment issues through magnetic attraction and repulsion mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If physical engagement mechanisms are used to connect gate components, then secure locking is achieved, but wear and noise increase

Engineering Contradiction:
Improvesecure lockingVSAvoidwear and noise
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the traditional mechanical engagement system with a magnetic field-based system. Permanent magnets mounted on opposing gate surfaces create magnetic attraction forces that securely lock the gates together without physical contact between moving parts, thereby eliminating wear and reducing noise while maintaining reliable locking

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

2Manufacturing precision

If tight installation tolerances are specified for gate alignment, then precise engagement is achieved, but installation complexity increases

Engineering Contradiction:
Improvegate alignmentVSAvoidinstallation complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent changes the engagement parameter from mechanical contact requiring precise alignment to magnetic field interaction. The magnetic field extends over a larger spatial volume compared to mechanical contact points, creating a broader tolerance zone that accommodates variations in gate alignment during installation, thereby reducing installation complexity while maintaining secure engagement

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 solution ensures safe and efficient coupling of rail portions, reducing wear and noise, and simplifying installation by eliminating the need for physical engagement, while maintaining alignment and allowing seamless transitions between fixed and traverse rails.

Implementation Method 1

the locking pin magnetic portion of the gate engages with the gate magnetic portion of the second gate such that, upon the rail portion of the gate being substantially aligned with the rail portion of the second gate, the locking pin is moved from the first position to the second position

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

the use of magnets to move the locking pin removes the requirement for physical interaction between the gates. Such an arrangement not only reduces the wear on the gate components

Methodology Applied
Scientific EffectMagnetic field engagement: Magnetism

Implementation Method 3

In addition, the noise associated with gates engaging with each other is reduced, which can be an important consideration in the healthcare facility environment

Methodology Applied
Scientific EffectMagnetic field interaction: Magnetism

Data Source

PatentUS11376180B2Gates for overhead lifting rails
Publication Date: 2022.07.05 LIKO RES & DEV
  • US11376180B2 patent drawing
  • US11376180B2 patent drawing
  • US11376180B2 patent drawing

AI summary

The present disclosure relates to a gate system for an overhead lifting rail system, comprising: a first gate comprising: a rail portion for supporting a lifting carriage; and a bridging element pivotally coupled adjacent a proximal end to the rail portion; and a second gate comprising: a rail portion for suspending a lifting carriage; and a bridging element support portion. Upon the first gate engaging with the second gate, a distal end of the bridging element of the first gate engages with the bridging element support portion of the second gate to form a bridge between the first gate and the second gate; and the distal end of the bridging element and the bridging element support portion are configured such that the ends of the bridging element are substantially aligned with the respective ends of the rail portions of the first and second gates.