Fiber Optic Enclosure Blade Guide for Jacket Removal

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Solution Overview

Problem

Existing fiber optic cable enclosures lack efficient methods for forming breakouts in the field and assembling sealed distribution enclosures, which complicates access to optical fibers and secure termination.

Innovation Solution

A sealed cable enclosure with a clam-shell configuration and blade guide structure that allows for the removal of the cable jacket without damaging the optical fibers, enabling access and secure termination of the fibers with ruggedized optical connectors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional clamps and bolts are used to secure cables in enclosures, then cable security is improved, but device complexity and ease of operation deteriorate

Engineering Contradiction:
Improvecable securityVSAvoidenclosure assembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cable anchor features self-gripping teeth that automatically engage with the cable outer jacket when the cable is inserted, eliminating the need for separate clamps and bolts. The anchor secures the cable through its own structural design, providing both security and simplicity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The cable anchor integrates multiple functions into a single component: it provides mechanical securing through self-gripping teeth, positions the cable through alignment features, and seals the enclosure opening. This consolidation replaces traditional multi-component assembly systems.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If cable jacket removal is performed without guidance, then ease of operation improves, but manufacturing precision deteriorates due to fiber damage risk

Engineering Contradiction:
Improvejacket removal easeVSAvoidfiber protection precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The blade guide structure serves as an intermediary tool between the operator and the cable. It provides a controlled path for the cutting blade, ensuring precise removal of the outer jacket while preventing contact with and damage to the optical fibers inside. The guide structure translates rough manual operation into precise controlled cutting.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If field breakout procedures are simplified, then productivity improves, but reliability may worsen due to potential fiber damage

Engineering Contradiction:
Improvefield breakout efficiencyVSAvoidfiber integrity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The blade guide structure is pre-installed and positioned in the enclosure before field operations begin. The guide structure is permanently configured with the correct geometry and positioning to ensure that when operators perform breakout procedures, the cutting blade automatically follows the predetermined safe path that protects the fibers, eliminating the need for complex procedural instructions or specialized training.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10054741B2Fiber optic enclosure assembly
Publication Date: 2018.08.21 COMMSCOPE TECHNOLOGIES LLC
  • US10054741B2 patent drawing
  • US10054741B2 patent drawing
  • US10054741B2 patent drawing

AI summary

A telecommunications enclosure includes first and second generally aligned cable ports at opposing ends of the enclosure. A cable anchor at each of the first and second cable ports is for anchoring a fiber optic drop cable to the enclosure and to limit axial movement of the cable relative to the enclosure. A blade guide structure is positioned between the first and second cable ports, the blade guide structure configured to abut a portion of the cable extending between the first and second cable ports and defining at least a blade guide surface adapted to guide a cutting blade used for removing a portion of a cable jacket without damaging optical fibers of the cable.