Multi-Part Synthetic Sling With Movable Rope Ends
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Solution Overview
Problem
Current synthetic slings are costly and have limitations in performance, including low temperature tolerance, difficult inspection, UV degradation, and bulkiness, while wire slings face issues like high weight, stiffness, and conductivity.
Innovation Solution
A system utilizing a continuous synthetic rope woven into a sling with movable ends and measurement indicia, featuring multiple wraps with loops at opposing ends, allowing for relative movement and optimal load distribution, which is torsionally neutral and non-conductive, with a pushability that supports its own weight and resistance to UV degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If synthetic slings are used instead of wire slings, then weight is reduced and corrosion resistance is improved, but cost increases and temperature tolerance decreases
Solution Approach 1:
The patent combines multiple synthetic rope parts into a single integrated sling assembly with common hardware (hooks, connectors, and mounting structures). This merging approach reduces the total number of separate components needed, simplifies installation, and lowers overall manufacturing cost while maintaining the lightweight and corrosion-resistant properties of synthetic materials.
2Ease of operation
If synthetic slings are used instead of wire slings, then flexibility and handling ease are improved, but UV resistance and moisture resistance decrease
Solution Approach 1:
The patent employs composite material construction by combining synthetic ropes with UV-resistant coatings and moisture-barrier treatments. The sling assembly integrates multiple materials with complementary properties: the synthetic rope provides flexibility and lightweight characteristics, while protective coatings and hardware selections address UV degradation and moisture penetration concerns.
3Strength
If wire slings are used instead of synthetic slings, then abrasion resistance and temperature tolerance are improved, but weight increases and conductivity increases
Solution Approach 1:
The patent applies local quality enhancement by reinforcing specific high-wear areas of the sling assembly with abrasion-resistant materials or protective sleeves, and by selecting hardware with appropriate temperature ratings. This targeted approach provides enhanced durability where needed while maintaining the overall lightweight and non-conductive characteristics of the synthetic sling system.
4Strength
If multiple parts are used to increase lifting capacity, then strength is improved, but device complexity and bulk increase
Solution Approach 1:
The patent utilizes segmentation by dividing the lifting system into modular components (multiple rope parts, separate hardware elements) that can be independently selected and assembled. This modular approach allows the lifting capacity to be increased by adding parts while maintaining relatively simple assembly procedures and clear inspection pathways, thereby managing complexity despite increased strength capability.
Data Source
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AI summary
A system for applying a tensile load, the system having: a length of continuous synthetic rope having first and second bitter ends; the continuous synthetic rope being woven with itself to create a sling; the first and second bitter ends of the rope being capable of moving relative to each other and the sling. The system may be configured such that movement of the bitter ends relative to the sling or each other is observable or measurable. Systems may be slings that provide a plurality of wraps of a continuous synthetic rope having loops at opposing ends; the plurality of wraps of continuous synthetic rope having at least three parts and being woven such that the resulting woven sling has at least three picks.