Cable Fixation Assembly for Strength Member Yarn Anchoring
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Solution Overview
Problem
Existing cable fixation methods in telecommunications closures fail to adequately anchor fibrous strength members, leading to undesirable stress, shifting, and separation of threads, which can damage optical fibers and interfere with adjacent cables.
Innovation Solution
A cable fixation assembly with a body defining a cable mounting region, transversely extending through holes, and longitudinally extending channels, along with recesses and arcuate routing paths, is used to securely anchor fibrous strength members by looping and tightening ties around the cable jacket and strength member, minimizing slack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cable fixation methods are used, then cable installation is simple, but the strength member yarn is not adequately anchored causing thread separation and stress on optical fibers
Solution Approach 1:
The fixation assembly is divided into distinct functional components: a body with mounting region, channels for routing strength member yarn, recesses for securing the yarn, and ties for tightening. This segmentation allows each component to perform its specific function effectively while maintaining overall system reliability.
Solution Approach 2:
The strength member yarn is routed through nested structures within the fixation assembly - through channels and into recesses - creating a compact, integrated anchoring system that maximizes space utilization and securing effectiveness.
2Object-generated harmful factors
If strength member yarn is not adequately anchored, then installation is easier, but threads separate and spread out interfering with adjacent cables
Solution Approach 1:
The fixation assembly is designed with pre-formed channels and recesses that guide and secure the strength member yarn during installation. The yarn is routed through the channels and into the recesses before tightening, preventing thread separation during the installation process itself.
Solution Approach 2:
The channels and recesses act as intermediary structures between the tie and the strength member yarn, providing a controlled path that prevents the yarn from spreading out and interfering with adjacent cables while maintaining installation simplicity.
3Object-affected harmful factors
If strength member yarn is not anchored, then fixation assembly is simpler, but stress is applied to optical fibers causing damage
Solution Approach 1:
The harmful stress is extracted and transferred from the optical fibers to the strength member yarn and the fixation assembly structure. The yarn is secured in the recesses and tied down, creating a load path that protects the optical fibers from mechanical stress while maintaining necessary fixation.
Data Source
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AI summary
Devices, assemblies and methods for anchoring and tightening strength member yarn of a telecommunications cable. The strength member yarn is routed through channels defined in a cable fixation body and pulled into one or more recesses positioned between one of the channels and the cable jacket to tightly anchor the strength member yarn.