Adjustable Slide Rail Assembly for Rack Cable Access

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Solution Overview

Problem

Conventional slide rail assemblies in rack systems face difficulties in cable installation and removal due to narrow chassis space and complex cable configurations, hindering efficient examination and maintenance of rack-type servers.

Innovation Solution

An adjustable slide rail assembly with an outer and inner rail system, featuring fixing and sliding portions with specific hole and slot configurations, and positioning members with resilient sections, allows for adjustable length and secure installation/removal of chassis components, facilitating cable management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the chassis space is narrow and cable configuration is complex, then the server can be compactly arranged, but the installation and removal of cables becomes difficult

Engineering Contradiction:
Improvechassis space utilizationVSAvoidcable installation and removal
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The slide rail assembly enables dynamic adjustment of the distance between the chassis and the rack by allowing the inner rail to move relative to the outer rail. This dynamic positioning creates adjustable cable routing space, making cable installation and removal easier while maintaining compact chassis arrangement.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The slide rail assembly acts as an intermediary mechanism between the chassis and the rack. By introducing this intermediate structure with movable inner rail, it provides the necessary space and flexibility for cable management without requiring changes to the chassis itself.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the slide rail assembly has fixed length, then the structure is simple, but it cannot accommodate different cable routing needs

Engineering Contradiction:
Improveslide rail structureVSAvoidcable management flexibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The slide rail assembly transitions from a fixed structure to a dynamic one by allowing the inner rail to move longitudinally within the outer rail. This movement capability provides adaptability for different cable routing requirements while maintaining relatively simple structural components.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The slide rail assembly is divided into separate components: outer rail, inner rail, and positioning members. This segmentation allows the inner rail to move independently relative to the outer rail, providing flexibility for cable management while keeping each individual component structurally simple.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the retaining member is easily removable, then the chassis can be quickly detached, but the positioning member cannot prevent accidental pull-out

Engineering Contradiction:
Improvechassis detachmentVSAvoidprevention of accidental pull-out
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The positioning member changes the effective diameter parameter of the retention hole by using a resilient section that can be compressed to a smaller diameter for insertion and then expands to a larger diameter to prevent pull-out. This parameter change enables both easy installation and secure retention.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The resilient section of the positioning member has a curved or flexible structure that allows it to deform elastically. This curvature enables the member to be compressed during installation and then spring back to its original shape to secure the retaining member, providing both ease of installation and reliable retention.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables easier installation and removal of cables between server modules by allowing adjustable length and secure positioning of chassis components, improving maintenance efficiency in rack systems.

Implementation Method 1

The positioning member has a resilient section and a contact portion, the contact portion connected to the resilient section and covering up the first installation hole of the at least one fixing portion

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9237671B2Slide rail assembly for rack system
Publication Date: 2016.01.12 KING SLIDE WORKS CO LTD
  • US9237671B2 patent drawing
  • US9237671B2 patent drawing
  • US9237671B2 patent drawing

AI summary

A slide rail assembly for a rack system is installed to a chassis. The chassis includes a first chassis and a second chassis. The slide rail assembly includes an outer rail and an inner rail. The inner rail is movably connected to the outer rail. The first chassis of the chassis is installed to the inner rail, and the second chassis of the chassis is movably connected to the inner rail. The second chassis is movable relative to the first chassis to adjust the total length of the chassis.