Fibreglass Network Distributor Door Mounting

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Solution Overview

Problem

Existing fiber optic network distributors require complex assembly processes due to the need to pivot an inner door, limiting access and increasing difficulty in routing cables, and the outer housing cannot be replaced without shutting down the system.

Innovation Solution

The cassette systems are attached to a detachable mounting plate on the housing door, allowing the outer housing to be removed and replaced without interrupting service, and a flexible guide element facilitates cable routing between the inner wall and door, enabling easier assembly with improved access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If an inner door is used to separate assembly levels, then spatial organization is improved, but assembly complexity and cable routing difficulty increase

Engineering Contradiction:
Improvespatial organizationVSAvoidassembly complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent removes the inner door completely from the housing structure. Instead of having a door that swings on hinges, the cassette systems are mounted directly on the rear inner wall, eliminating the need for cable routing through gaps or over the top of a door. This extraction of the door element simplifies the overall structure while maintaining spatial organization through direct mounting.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the housing into functional zones without requiring a physical door. The rear inner wall serves as the mounting surface for cassette systems, creating clear spatial separation between front and rear assembly levels through positioning rather than through a door structure. This segmentation maintains organization while reducing complexity.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If an inner door is used for cassette management, then access to cassettes is improved, but cable routing complexity increases

Engineering Contradiction:
Improvecassette accessVSAvoidcable routing complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts the cable routing complexity by removing the inner door entirely. Cables are routed directly from the front of the housing to the rear inner wall where cassettes are mounted, eliminating the need to route cables through door gaps or over door tops. This direct routing path simplifies cable management while maintaining easy cassette access.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of mounting cassettes on a door that swings to provide access, the patent inverts the approach by mounting cassettes directly on the rear inner wall. Access is provided by opening the outer housing door, which gives direct access to both the cassettes and the cable routing path, eliminating the need for a separate inner door mechanism.

Inventive Principle:
Principle #13The other way round (Inversion)

3Adaptability or versatility

If the outer housing is made replaceable, then maintenance flexibility is improved, but system shutdown during replacement becomes necessary

Engineering Contradiction:
Improvemaintenance flexibilityVSAvoidsystem continuity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the housing into a replaceable outer housing and a permanent inner framework. The inner framework contains all the cable routing elements, cable guides, and mounting structures for the cassettes. This segmentation allows the outer housing to be removed and replaced without affecting the internal cable routing or requiring system shutdown, as the functional elements remain on the inner framework.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the functional cable routing and cassette mounting elements from the outer housing and places them on the inner framework. This extraction allows the outer housing to be purely a protective enclosure that can be replaced without interrupting the fiber optic distribution function, which is maintained by the inner framework and mounted cassettes.

Inventive Principle:
Principle #2Taking out (Extraction)

4Strength

If the opening angle of the housing door is limited, then structural integrity is improved, but working area accessibility decreases

Engineering Contradiction:
Improvestructural integrityVSAvoidworking area accessibility
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The patent removes the inner door that limited the opening angle to 90 degrees. With only the outer housing door remaining, the opening angle can be increased to approximately 130 degrees, providing much better access to the working area. The structural integrity is maintained through the reinforced hinge connection and stop mechanism on the outer housing door.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements a dynamic hinge connection for the outer housing door that allows it to open to a larger angle (approximately 130 degrees) while maintaining structural integrity through a stop mechanism. This dynamic range of motion provides improved accessibility to the working area while preserving the strength and stability of the housing structure.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3285105B1Fibreglass network distributor
Publication Date: 2020.06.10 LIC LANGMATZ
  • EP3285105B1 patent drawingFigure 1~2
  • EP3285105B1 patent drawingFigure 3
  • EP3285105B1 patent drawingFigure 4

AI summary

The fiber optic network distributor, comprising an internal frame and a rear inner wall to which fiber optic cables supplied via a base plate can be attached, a cassette system for cassette management in the fiber optic network distributor, wherein the fiber optic cables are routed through the base plate into the plinth, and further comprising an outer housing containing two side walls, a rear wall, a top wall and a pivotable housing door, arranged like a hood over the internal frame and the rear inner wall, is characterized in that a bracket, preferably a mounting plate, is detachably attached to the inside of the housing door, to which the cassette systems are attached.