Optic Cable Puller Assembly with Intermediary Collar
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Solution Overview
Problem
Existing methods for pulling fiber optic cables risk damaging the fragile inner optic fibers and pre-terminated ends due to excessive pulling strain, as they do not effectively redirect the pulling force away from these sensitive components.
Innovation Solution
A system comprising a stripped optic cable with exposed reinforcing strands, a cylindrical collar secured to the strands, and a puller with a housing and pulling wire that transfers force to the reinforcing strands, ensuring the force is distributed away from the fragile parts, using a puller with complementary halves and dentated edges to secure the pulling wire and a collar that can absorb excessive force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pulling assembly is applied directly to the optic cable, then the cable can be pulled through ducts and passageways, but the fragile inner optic fibers and pre-terminated ends may be damaged due to excessive pulling strain
Solution Approach 1:
The patent introduces a collar as an intermediary component that couples the puller to the cable's reinforcing strands rather than applying force directly to the cable jacket or connector. This mediator distributes the pulling force across multiple reinforcing strands, preventing concentration of stress on fragile optic fibers and pre-terminated ends, thus resolving the contradiction between installation efficiency and component integrity
Solution Approach 2:
The collar is pre-installed on the cable's reinforcing strands before the pulling operation. This preliminary action prepares the force distribution mechanism in advance, ensuring that when the puller is applied, the force is immediately redirected through the collar to the reinforcing strands rather than damaging the fragile components during the pulling process
2Force
If the pulling force is applied to the cable jacket, then the cable can be pulled, but the force may concentrate on the pre-terminated ends and terminal connectors causing damage
Solution Approach 1:
The collar acts as a force-redistributing intermediary between the puller and the cable components. It intercepts the pulling force and redirects it to the reinforcing strands, preventing stress concentration on the pre-terminated ends and terminal connectors, thus eliminating the harmful effect while maintaining effective pulling force application
Solution Approach 2:
The collar distributes the pulling force from a single-point application on the cable jacket to a multi-point distribution across several reinforcing strands. This dimensional change in force application - from concentrated to distributed - prevents stress concentration on vulnerable components while maintaining the necessary pulling force
Data Source
AI summary
A system and puller for pulling an optic cable having reinforcing strands, system comprising a collar secured to the cable reinforcing strands and a puller comprising a housing slideable along the cable to abut the collar and a pulling wire attached to the housing for pulling the collar and cable.