Unitary Fiber-Optic Module Tray With Guide Rails

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Solution Overview

Problem

Current fiber-optic trays and drawers are complex and expensive, with limited configurations that hinder the efficient insertion and alignment of fiber-optic modules and technician access, making fiber-optic connections slower to establish.

Innovation Solution

A drawer design for fiber-optic equipment featuring unitary side guides with channels to engage tray tongues and flexures, allowing for multiple tray positions and easy locking mechanisms to facilitate faster and more precise module placement and connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If traditional multi-part trays and drawers are used, then structural strength and stability are maintained, but device complexity and manufacturing cost increase

Engineering Contradiction:
Improvetray and drawer complexityVSAvoidstructural stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent combines multiple separate components (tray body, side guides, locking mechanisms, and support structures) into a single unitary tray assembly. The tray is formed as one integrated piece with built-in side guides and locking features, eliminating the need for separate drawer components and reducing assembly complexity while maintaining structural integrity through the unified design.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If traditional tray configurations are used, then basic module support is provided, but insertion and alignment of fiber-optic modules becomes difficult and time-consuming

Engineering Contradiction:
Improvemodule insertion and alignmentVSAvoidconnection establishment time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent introduces alignment rails and guide features as intermediary elements between the tray and fiber-optic modules. These guide rails with precision-machined surfaces and alignment features facilitate smooth insertion and precise positioning of modules into the tray, reducing insertion difficulty and time without requiring complex external alignment tools.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The tray is pre-configured with precisely positioned guide rails, alignment features, and locking mechanisms during manufacturing. These preliminary structural preparations enable technicians to simply slide modules into place without requiring complex alignment procedures or multiple adjustment steps, significantly reducing connection establishment time.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If traditional drawer designs are used, then modules can be accessed, but technician access and maneuverability are limited

Engineering Contradiction:
Improvetechnician access to modulesVSAvoiddrawer mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements a dynamic drawer mechanism with smooth-running rollers and guide rails that allow the tray to easily slide in and out of the drawer assembly. The design incorporates low-friction movement surfaces and flexible positioning capabilities, enabling technicians to quickly access and reposition modules without complex manual manipulation or heavy lifting requirements.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2867712B1Fiber-optic module trays and drawers for fiber-optic equipment
Publication Date: 2019.09.11 CORNING OPTICAL COMMUNICATIONS LLC
  • EP2867712B1 patent drawingFigure 1A
  • EP2867712B1 patent drawingFigure 1B
  • EP2867712B1 patent drawingFigure 2A

AI summary

A unitary tray for operably supporting a fiber-optic module is disclosed. The tray includes a guide base and guide rails that define a central channel sized to accommodate the fiber-optic module. The fiber-optic module can be slid into a central module position from the back or the front of the tray, and then locked in the central module position. Opposing unitary side guides with slotted channels can be used to form a drawer that holds one or more of the trays. The drawers can be used to form fiber-optic equipment such as an interconnection unit that supports the modules and that allows for conveniently making multiple optical fiber interconnections.