Rope Termination Cone for Equal-Length Subrope Splicing
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Solution Overview
Problem
Conventional rope termination methods face inefficiencies due to subrope length differences and improper layering, leading to reduced strength and complexity in splicing larger ropes, particularly in offshore applications.
Innovation Solution
A device comprising a cylinder with channels for receiving subropes, allowing for precise splicing and alignment, and a method of splicing subropes at the termination point using a cone or pyramid structure, ensuring equal subrope lengths and secure connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional splicing methods are used to terminate ropes, then the rope can be connected to fittings, but subrope length differences and improper layering occur leading to reduced strength and increased complexity
Solution Approach 1:
The patent introduces a splicing device as an intermediary tool that guides subropes through curved channels to ensure equal length and proper layering. This mediator device resolves the complexity of manual splicing while maintaining high strength connections by enforcing correct geometric relationships between subropes during the splicing process
Solution Approach 2:
The device performs preliminary actions by pre-establishing the correct geometric configuration of subropes before the actual splicing occurs. The curved channels pre-position subropes at equal lengths and correct angles, preparing them for optimal splicing that maximizes strength while reducing the complexity of the subsequent splicing operation
2Strength
If manual splicing is performed to achieve strength efficiency, then rope termination strength is maximized, but the process becomes time-consuming and complex
Solution Approach 1:
The device performs preliminary positioning of subropes in correct layers and equal lengths before splicing, which reduces the time required for the actual splicing operation. By pre-establishing the correct geometric configuration, the device eliminates time-consuming trial and error adjustments during manual splicing while maintaining strength efficiency
3Shape
If subropes are laid in multiple layers within the eye, then proper rope geometry is achieved, but it becomes difficult to maintain correct layers and prevent subropes from burying
Solution Approach 1:
The curved channels in the splicing device act as intermediaries that physically guide and separate subropes into correct layers. The channel geometry prevents subropes from burying into layers beneath by maintaining proper spacing and orientation throughout the splicing process, making multi-layer configuration easier to execute correctly
Solution Approach 2:
The curved channels in the device utilize curvature to guide subropes through smooth paths that naturally maintain proper layering. The curved geometry ensures subropes follow the correct trajectory and remain in their designated layers, preventing them from burying into adjacent layers while achieving the required rope eye shape
Data Source
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AI summary
A device for termination of a rope comprises a cylinder extending longitudinally from a base to a cone or pyramid, wherein the cylinder defines at least one channel for receiving a pair of subropes substantially perpendicular to the longitudinal axis of the cylinder. It can be used for termination of rope manufactured from synthetic fibres or constructed from multiple subropes.