Fiber Optic Chassis Projection Adjustment Without Rack Removal

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Solution Overview

Problem

Existing fiber optic equipment chassis projection depth adjustment requires disassembly and reassembly of hardware, making it cumbersome and inefficient to change the projection depth without removing the chassis from the equipment rack.

Innovation Solution

A fiber optic equipment chassis with movable support brackets and detents or apertures that allow for adjusting the projection depth while the chassis remains in place on the equipment rack, using a movable projection to engage with the detents or apertures for defining the projection, and a support feature to facilitate translation without supporting the chassis weight during installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If movable brackets with multiple fasteners are used to allow projection depth adjustment, then the adaptability of the chassis projection depth is improved, but the device complexity and ease of operation deteriorate due to requiring disassembly and reassembly of multiple fasteners

Engineering Contradiction:

Improveprojection depth adjustment capabilityVSAvoidoperation simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The bracket is divided into a fixed portion and a movable portion that can slide relative to each other along the rail. The movable portion carries the fastener, allowing it to be positioned at different locations along the rail to achieve projection depth adjustment without disassembling multiple fasteners. This segmentation enables independent adjustment of the projection depth while maintaining simple fastening operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The bracket transitions from a static structure to a dynamic one where the movable portion can slide along the rail to different positions. This dynamic capability allows the projection depth to be adjusted by moving the bracket along the rail and securing it at the desired position, eliminating the need to disassemble and reassemble multiple fasteners while maintaining structural stability.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the chassis is removed from the equipment rack to change projection depth, then the ease of operation is improved by allowing access to adjustment mechanisms, but the productivity deteriorates due to requiring removal and reinstallation

Engineering Contradiction:

Improveaccess to adjustment mechanismsVSAvoidadjustment efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The bracket is segmented into fixed and movable portions, with the movable portion carrying the fastener along a rail. This allows the projection depth to be adjusted by simply moving the movable portion along the rail and securing it, without requiring removal of the chassis from the equipment rack. The segmentation enables in-place adjustment while maintaining structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The bracket design allows the projection depth adjustment to be performed by the existing bracket structure itself, without requiring external tools or chassis removal. The movable portion can be easily repositioned along the rail and secured using the same fastener mechanism, enabling self-service adjustment that improves productivity while maintaining ease of operation.

Inventive Principle:

Principle #25Self-service

3Device complexity

If fixed brackets are used to simplify the structure, then the device complexity is reduced, but the adaptability of projection depth deteriorates

Engineering Contradiction:

Improvebracket structure simplicityVSAvoidprojection depth adjustability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The bracket is divided into a fixed portion that remains stationary and a movable portion that can slide along the rail. The fixed portion maintains structural simplicity and stability, while the movable portion provides the necessary adaptability for projection depth adjustment. This segmentation allows the system to achieve both simplicity and adjustability simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The bracket is designed with multi-functionality: the fixed portion provides structural support and stability, while the movable portion with sliding capability along the rail provides projection depth adjustment. The same bracket structure serves both the function of providing structural integrity and enabling adaptability, eliminating the need for completely different bracket designs for fixed versus adjustable applications.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12517318B2Projection adjustment assembly for fiber optic equipment

Publication Date: 2026.01.06 CORNING RES & DEV CORP

AI summary

A fiber optic apparatus is provided including a support bracket configured to be mounted to an equipment rack, the bracket having a movable projection extending therefrom and a chassis configured to support fiber optic communication equipment, the chassis including a plurality of detents or apertures configured to receive the movable projection, wherein the engagement of the movable projection into one of the detents or apertures defines the projection of the chassis from the rack.