Electromagnetic Safety Trigger Assembly for Simplified Elevator Braking
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Solution Overview
Problem
Traditional safety systems for machines like elevator systems require numerous components, increasing installation time and costs, necessitating a more cost-effective solution with fewer components.
Innovation Solution
A selectively operable braking device featuring an electromagnetic safety trigger with a magnetic brake and a retention apparatus, including springs or a motor, that moves the magnetic brake between engaging and non-engaging positions to control the braking state of the elevator car.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional safety system with numerous components is used, then the safety function is achieved, but the installation time and costs increase
Solution Approach 1:
The patent combines multiple safety system components into a single integrated electromagnetic safety trigger assembly. The magnetic brake, retention apparatus, and electromagnetic component are merged into one unit that performs multiple safety functions simultaneously, eliminating the need for separate components and reducing installation complexity while maintaining safety reliability
Solution Approach 2:
The electromagnetic safety trigger assembly serves multiple functions within a single device: it acts as a magnetic brake to stop the elevator car, uses the retention apparatus to maintain braking position, and employs the electromagnetic component for controlled release. This multi-functionality reduces the overall number of components needed in the safety system
2Reliability
If traditional safety system components are used, then the safety operation is ensured, but the installation costs and time increase
Solution Approach 1:
By merging the magnetic brake, retention apparatus, and electromagnetic component into a single pre-assembled unit, the installation process is simplified from installing multiple separate components to installing one integrated assembly, significantly reducing installation time while ensuring safety operation through the coordinated design of all components within the single unit
Solution Approach 2:
The retention apparatus is pre-configured within the electromagnetic safety trigger assembly during manufacturing, with springs or motors already positioned to provide automatic engagement and retention functions. This preliminary preparation eliminates the need for complex field assembly and adjustment during installation, reducing installation time while ensuring proper safety operation
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 solution reduces the number of components needed, enhancing cost-effectiveness and efficiency by using an electromagnetic safety trigger to manage the braking state of the elevator car, effectively addressing the need for a simpler and more economical safety system.
Implementation Method 1
an electromagnetic component configured to move the magnetic brake from the rail-non-engaging position to the rail-engaging position upon receipt of a resetting signal
Implementation Method 2
the magnetic brake configured to move between a rail-engaging position and a rail-non-engaging position, the magnetic brake when in the rail-engaging position contemporaneously with motion of the car, moving the rod in a direction to thereby move the safety brake from the non-braking state into the braking state
Data Source
AI summary
The present disclosure relates generally to a selectively operable safety brake including a magnetic brake operably coupled to a rod and disposed adjacent to a metal component, the magnetic brake configured to move between an engaging position and a non-engaging position, said magnetic brake, when in the engaging position contemporaneously with motion of the machine, moving the rod in to thereby move the safety brake from the non-braking state into the braking state, and an electromagnetic component including a retention apparatus, the electromagnetic component configured to move the magnetic brake from the engaging position to the non-engaging position upon receipt of a resetting signal.