Endless Rope Loop Manufacturing via Twisted Strand Helix
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional methods for manufacturing endless loops, such as tethers and slings, often fail to achieve the desired mechanical properties, particularly breaking strength and consistency, due to variations in strand and cover material selection.
Innovation Solution
A method involving the formation of a loop with twisted strands around rollers, where body strands are fed and twisted onto the existing strands, creating a helical path and securing them with knots, to enhance strength and reduce variance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional parallel-laid manufacturing methods are used, then the manufacturing process is simple, but the breaking strength and consistency are insufficient
Solution Approach 1:
The patent applies dynamics by transitioning from static parallel-laid strands to dynamic twisted strands that rotate around a common axis. The body strands are fed in a twisted configuration and rotated during the manufacturing process, creating a helical structure that significantly enhances breaking strength while maintaining manufacturing feasibility through controlled rotation mechanisms
Solution Approach 2:
The patent implements dimensionality change by adding a rotational dimension to the traditional linear parallel-laid structure. Instead of strands arranged only in one dimension (parallel), the body strands are twisted and rotated around the core strands, creating a three-dimensional helical configuration that improves strength characteristics
2Reliability
If traditional manufacturing methods are used, then material costs are controlled, but utilization variance between slings is high
Solution Approach 1:
The patent applies feedback control by monitoring and controlling the rotation speed, strand feeding rate, and twist parameters during the manufacturing process. This ensures consistent twisting and rotation of body strands around core strands, reducing utilization variance between manufactured slings while maintaining ease of manufacture through automated control systems
Solution Approach 2:
The patent implements parameter changes by precisely controlling the twist rate, rotation speed, and strand tension parameters during manufacturing. These controlled parameter variations ensure consistent structural properties and breaking strength across different slings, improving reliability without significantly complicating the manufacturing process
3Strength
If more expensive materials or additional strands are used, then breaking strength increases, but cost increases
Solution Approach 1:
The patent applies parameter changes by optimizing the twist rate, number of twists per unit length, and rotation parameters to maximize the strength efficiency of the given material. This allows achieving higher breaking tenacity through optimized structural parameters rather than simply adding more material or using expensive materials
Solution Approach 2:
The patent implements composite material principles by combining core strands and body strands in a twisted helical structure, where the interaction between different strand types creates a composite effect that enhances overall breaking strength beyond what individual strands could achieve alone, without requiring additional material quantity
Data Source
AI summary
A method for manufacturing a rope structure comprising providing, around a first roller and a second roller, a loop including a plurality of twisted strands. The method further comprising feeding a plurality of body strands onto the loop, feeding including, with the plurality of body strands connected to the loop, moving the loop about the first roller and the second roller to cause the body strands to lay and be twisted on the plurality of twisted strands.