Elevator Inspection Assembly with Rail Alignment and Sensor Integration
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Solution Overview
Problem
Elevator system inspections are challenging due to tight space clearances, limited hoistway lighting, and component complexity, requiring efficient and safe methods for monitoring the condition of elevator components without the need for operators to ride atop the cab or stay in the elevator pit.
Innovation Solution
A self-contained inspection assembly with drive wheels, guide slides, and magnets that converge and align to maintain orientation on the hoistway rail, equipped with sensors like cameras and 3D scanners, allowing for remote operation and adjustable positioning to accommodate various rail sizes, enabling efficient and safe inspections without power cables or counterbalances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual inspection of elevator components is performed, then the condition of components can be monitored, but the inspection is challenging due to tight space clearances, hoistway lighting, and component sizing
Solution Approach 1:
The patent replaces manual visual inspection with an automated inspection system that uses sensors (cameras, 3D scanners, audio monitoring equipment, vibration monitoring equipment) to detect and monitor component conditions. This substitution eliminates the need for operators to physically access tight spaces and overcomes limitations of manual inspection due to lighting and space constraints.
Solution Approach 2:
The inspection assembly acts as an intermediary device that can be positioned on the hoistway rail to conduct inspections at various locations. This intermediary system bridges the gap between the need for comprehensive component monitoring and the difficulties of direct human access to inspection areas.
2Reliability
If operators inspect elevator systems from inside the hoistway, then direct observation is possible, but operator safety is compromised due to the need to ride atop the cab or stay in the elevator pit
Solution Approach 1:
The patent replaces human operators with an automated inspection assembly that travels on the hoistway rail. This assembly carries sensors and inspection equipment, performing all inspection functions remotely without requiring operators to be in hazardous positions atop the cab or in the elevator pit.
Solution Approach 2:
The inspection assembly is self-contained and autonomous, carrying its own sensors, power supply, and control systems. It can independently navigate the hoistway rail and conduct inspections without human intervention, eliminating safety risks to operators while maintaining high inspection quality.
3Stability of the object's composition
If the assembly uses fixed positioning on the hoistway rail, then alignment is maintained, but adaptability to various rail sizes is limited
Solution Approach 1:
The inspection assembly incorporates adjustable positioning mechanisms that allow it to dynamically adapt to different rail sizes and configurations. The assembly can modify its position and orientation on the rail while maintaining stable alignment during inspection operations, providing both adaptability and stability.
Solution Approach 2:
The assembly is designed with universal mounting capabilities that allow it to accommodate various rail sizes and types. Through adjustable components and flexible positioning systems, the same assembly can be deployed on different elevator systems with different rail dimensions, maintaining alignment and stability across multiple applications.
4Ease of operation
If the assembly operates without power cables, then inspection mobility is improved, but power supply and control become more complex
Solution Approach 1:
The patent replaces traditional mechanical power transmission (power cables) with wireless power and control systems. The inspection assembly uses wireless communication for control signals and likely wireless power transmission or onboard energy storage (such as batteries) to power its sensors, motors, and electronics, enabling cable-free operation and greater mobility.
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 assembly allows for thorough and safe inspections of elevator systems from outside the hoistway, reducing operator risk and improving inspection efficiency by maintaining alignment and increasing the useful life of drive wheels through dynamic load adjustment, facilitating quick assessments and accommodating different rail sizes.
Implementation Method 1
the wheel biasing member is a spring or an actuator
Implementation Method 2
the alignment-biasing member implement includes one or more magnets configured to apply a biasing force that urges the assembly toward the hoistway rail
Data Source
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AI summary
Disclosed is an assembly having: at least one drive wheel configured to roll against a hoistway rail of an elevator system; and a drive mechanism supported by the assembly and configured to drive the at least one of drive wheel, wherein the assembly is configured to support one or more sensors.