Hoist Remote Control Assembly Wireless Retrofit
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Solution Overview
Problem
Existing hoist systems with wired pendant controllers require operators to be within a specific vicinity, limiting flexibility and convenience, as they cannot be easily converted to wireless control systems without modifying the equipment or voiding warranties.
Innovation Solution
A remote-control assembly for hoists that includes a wireless signal receiver module and transmitter, allowing for wireless control of hoist systems by replacing the factory wired pendant controller without tools or modifications, using existing connections and power sources, and supporting various wireless communication methods like infrared, Bluetooth, or radio frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wired pendant controller is used, then the hoist system is simple and reliable, but the operator must be located within a specific vicinity which limits flexibility
Solution Approach 1:
The patent replaces the mechanical wired pendant controller with a wireless control system that uses radio frequency communication. The wireless transmitter sent by the operator communicates with a receiver in the hoist trolley, eliminating the need for physical wiring and allowing the operator to move freely without being constrained by cable length or connection points.
Solution Approach 2:
The patent introduces a wireless communication intermediary system between the operator and the hoist control. This intermediary consists of a transmitter that the operator holds and a receiver that integrates with the existing hoist trolley, enabling communication without direct physical connection while maintaining control functionality.
2Ease of operation
If a wireless control system is added to an existing hoist system, then operator flexibility is improved, but the system requires modification which may void warranty
Solution Approach 1:
The patent segments the wireless control system into separate functional components: a portable wireless transmitter that the operator holds and a receiver module that interfaces with the existing hoist trolley. This segmentation allows the control functionality to be added as a separate, non-invasive component rather than requiring modification of the hoist's core structure or wiring.
Solution Approach 2:
The patent designs the receiver to interface with the existing hoist trolley's power and control circuits in a universal manner, allowing the wireless control system to work with standard hoist configurations without requiring manufacturer-specific integration. This universal interface approach minimizes modification requirements and preserves warranty validity.
3Ease of manufacture
If existing hoist connections are used for wireless control, then installation is simplified and warranty is maintained, but the existing connections must support both power and control signals
Solution Approach 1:
The patent merges the power and control signal connections into a single integrated interface. The receiver utilizes the existing power connections in the hoist trolley to also carry control signals, combining multiple functions into one connection pathway. This eliminates the need for separate wiring for control signals and simplifies installation while maintaining compatibility with existing hoist systems.
Data Source
AI summary
A hoists remote-control assembly having an electrical hoist assembly with a combined control signal and electrical input port, a hoist trolley assembly having a control input port and a combined control signal and electrical cable having a free end extending from the hoist trolley assembly with the free end of the control signal and electrical cable removably attachable to the power input port of the hoist assembly, a wireless signal receiver module having a control signal cable removably attachable to the control signal input port of the hoist trolley assembly, a power input port removably attachable to the control signal and electrical cable of the hoist trolley assembly, and a combined control signal and electrical cable removably attachable to the power input port of the hoist assembly, and a wireless transmitter sending wireless operator hoist commands to the wireless signal receiver module located distal to the wireless transmitter.