Ferris Wheel Rope Drive Synchronization via Single Loop
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Solution Overview
Problem
Synchronization of two separate rope loops in amusement devices is complex due to differences in pulley diameters and circumferences, leading to varying conveying speeds.
Innovation Solution
A single self-contained hoisting rope forms two rope loops that act on the transport means, ensuring synchronous operation through frictional connection or detachable clamps, with a deflection device featuring coaxially mounted drive pulleys and offset deflection rollers for precise speed matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two separate rope loops are used to drive the transport means, then the drive system can operate, but synchronization of the two rope loops becomes technically complex and difficult to maintain
Solution Approach 1:
The patent merges two separate rope loops into a single continuous rope that forms one complete circuit around the supporting structure. This single rope is driven by two drive pulleys that rotate in opposite directions, ensuring that both sides of the rope move synchronously without requiring complex synchronization mechanisms. The merging eliminates the synchronization problem inherent in using two independent rope loops.
2Productivity
If two separate rope loops are used, then the drive can function, but even small differences in pulley diameter or circumference lead to different conveying speeds
Solution Approach 1:
By using a single continuous rope instead of two separate loops, the patent ensures that any variations in pulley dimensions affect both sides of the rope equally. The single rope configuration with two drive pulleys rotating in opposite directions guarantees that the conveying speed is uniform throughout the entire system, eliminating the speed differential problem that occurs with two separate rope loops.
3Reliability
If a single self-contained hoisting rope is used, then synchronous operation is ensured, but the rope must cross over a deflection device requiring precise alignment
Solution Approach 1:
The patent introduces a deflection device as an intermediary element that allows the single continuous rope to change direction and form two rope loops that act on the transport means. The deflection device, consisting of deflection rollers and guide devices, precisely guides the rope crossing without compromising the synchronous operation. This intermediary component enables the single rope configuration to function reliably while maintaining the synchronization advantage.
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 guarantees synchronized operation of the rope loops, reducing mechanical complexity and wear, while maintaining stable cabin movement and minimizing mounting costs and wear on the supporting structure.
Implementation Method 1
the hoisting rope acts on the transport means via a frictional connection and that at least one lockable rope pulley is mounted on the transport means, on which the hoisting rope rests
Data Source
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AI summary
The ride has cabins (2) for persons circulating on a positionally fixed supporting structure (1). A rope drive (5) is connected to move the cabins about the supporting structure, where the rope drive includes a single closed-loop conveying rope. A deflecting device is disposed to fold the single closed-loop conveying rope into two rope loops engaging with the cabins. The cabins are connected with the conveying rope by way of a frictionally locking connection, where interconnectors connect the cabins to one another with a fixed spacing.