Slide rail assembly

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Solution Overview

Problem

Conventional slide rail assemblies face challenges in accommodating spatial requirements between the rail and the cabinet, necessitating a solution that allows for flexible and synchronized movement of multiple slide rails while preventing unintended retraction or extension.

Innovation Solution

A slide rail assembly comprising a first rail, a second rail, a third rail, and a mounting member, where the third rail is longitudinally movable relative to the first rail, and the second rail is movable relative to the fourth rail, with a synchronizing member and positioning member to ensure synchronized movement and disengagement, and elastic members to provide force for engagement and disengagement mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional two or three-section slide rail assembly is used, then the structure is simple, but it cannot meet specific spatial requirements between the slide rail assembly and the rack

Engineering Contradiction:

Improvespatial requirement adaptabilityVSAvoidslide rail assembly structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The slide rail assembly is divided into four separate rails (first rail, second rail, third rail, fourth rail) that can be independently configured and assembled. This segmentation allows each rail to be optimized for specific spatial requirements while maintaining overall system functionality, resolving the contradiction between adaptability and complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The synchronizing member enables dynamic coordination between multiple rails, allowing them to move synchronously when needed and independently when spatial constraints require different configurations. This dynamic capability provides adaptability to various spatial requirements without requiring a completely different structure for each case.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple slide rails are mounted to form a two or more-section assembly, then spatial requirements are met, but synchronized movement control becomes difficult

Engineering Contradiction:

Improvemulti-rail configurationVSAvoidsynchronized movement control

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The synchronizing member acts as an intermediary mechanism between multiple slide rails, coordinating their movement. When the synchronizing member engages with the abutting feature, it ensures that multiple rails move synchronously, simplifying control. When disengaged, individual rails can move independently to meet specific spatial requirements.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Length of moving object

If the second rail is moved from retracted position, then extension is achieved, but unintended simultaneous movement of mounting member occurs

Engineering Contradiction:

Improverail extensionVSAvoidmovement control precision

Core Design Contradiction:

Length of moving objectVSReliability

Solution Approach 1:

The synchronizing member with its abutting feature is positioned to prevent unintended movement of the mounting member before extension occurs. The abutting feature physically blocks the mounting member from moving unless the second rail is properly engaged, thereby preventing erroneous simultaneous movement while allowing controlled extension.

Inventive Principle:

Principle #9Preliminary anti-action

4Reliability

If synchronizing mechanism is added to prevent unintended movement, then reliability improves, but device complexity increases

Engineering Contradiction:

Improvemovement synchronizationVSAvoidsynchronizing mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The synchronizing member employs simple, easily manufactured components including a pivoting element with contact portions and elastic members. These components are designed to be simple and cost-effective, providing reliable synchronization without adding significant complexity to the overall assembly.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 flexible and synchronized movement of multiple slide rails, ensuring they are securely engaged or disengaged, allowing for efficient extension and retraction while preventing unintended movement, thus addressing spatial constraints and improving usability.

Implementation Method 1

the slide rail assembly further includes a first elastic member configured to provide an elastic force to the synchronizing member

Methodology Applied

Scientific EffectElastic force: Elasticity

Data Source

PatentUS10791833B2Slide rail assembly

Publication Date: 2020.10.06 KING SLIDE WORKS CO LTD

AI summary

A slide rail assembly includes a first rail, a second rail, a mounting member, a third rail, a fourth rail and a synchronizing member. The first rail includes a disengaging feature. The third rail and the fourth rail are arranged on two side of the mounting member, and the synchronizing member is arranged on the mounting member. The third rail is movable relative to the first rail and the second rail is movable relative to the fourth rail. When the second rail is moved from a retracted position along a direction, the second rail and the mounting member are synchronously moved through the synchronizing member. When the second rail and the mounting member are moved to a predetermined position, the synchronizing member is driven by the disengaging member of the first rail to be no longer synchronously moved.