Rope Hoist Visual Height Indicator
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Solution Overview
Problem
In industrial settings, users of rope hoists often face difficulties in determining the lifting height of loads, especially when the load is obscured or out of sight, leading to challenges in accurately positioning heavy loads in complex environments.
Innovation Solution
A rope hoist with visually observable or readable means arranged on the rope drum cover, such as a scale with parallel openings or an alternating toothed structure, to indicate the winding or unwinding position of the hoisting rope, thereby providing a direct visual indication of the lifting height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electronic measurement methods (tachometer) are used to determine lifting height, then measurement precision is improved, but ease of operation deteriorates because the data is not directly visible to the user
Solution Approach 1:
The patent creates a visual copy of the lifting height information by marking the rope at intervals corresponding to specific height measurements. Instead of showing the user electronic data, it creates a physical visual representation (colored markings on the rope) that directly indicates height position, making the information immediately observable without requiring electronic displays or complex interpretation
Solution Approach 2:
The patent introduces an intermediary element (the marked rope itself) that translates electronic measurement data into visual form. The colored markings on the rope act as a mediator between the measurement system and the user, providing intuitive visual feedback about lifting height without requiring the user to interpret electronic readings
2Device complexity
If no visual indicator is provided, then device complexity is reduced, but difficulty of detecting and measuring increases when load is out of sight
Solution Approach 1:
The patent applies different colors to markings at different heights on the rope. This color coding system provides immediate visual distinction between different lifting heights, allowing users to quickly determine load position without complex indicators. The color changes create an intuitive visual scale that is easy to read from a distance or when the load is obscured
Solution Approach 2:
The patent adds a visual dimension to the lifting height information by marking the rope itself. Instead of relying solely on electronic sensors or mechanical indicators, it creates a visual dimension (color-coded markings) that provides height information directly on the rope, making the information accessible without adding complex mechanical indicator mechanisms
Data Source
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AI summary
The invention relates to a rope hoist, which comprises a rope drum (2) for a hoisting rope (3) to be winded thereon and a rope drum cover (4) for partially surrounding the rope drum (2). Visually observable or readable means (9) for detecting winding/unwinding positions of the hoisting rope (3) on the rope drum (2) are arranged on the rope drum cover (4), and to indicate lifting height of a load attached to the hoisting rope (3).