Slide rail assembly

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Solution Overview

Problem

Existing slide rail assemblies do not effectively allow for synchronous movement between multiple sections, particularly in configurations where spatial constraints require innovative sequencing mechanisms.

Innovation Solution

A slide rail assembly comprising a first rail, a second rail, a mounting member, and a synchronizing member, where the second rail is longitudinally movable relative to the fourth rail, and the first rail includes a disengaging feature that allows synchronous movement initially, followed by engagement with a positioning member to secure the mounting member at an extended position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a multi-section slide rail assembly is designed to meet spatial requirements, then adaptability to spatial constraints is improved, but synchronous movement between sections becomes difficult to achieve

Engineering Contradiction:

Improveadaptability to spatial constraintsVSAvoidsynchronous movement mechanism

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The slide rail assembly is divided into multiple sections (first section with first rail, second section with second rail) that can be independently configured to meet spatial requirements while maintaining overall functionality

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A synchronizing member is introduced as an intermediary component to coordinate movement between the first and second rails, enabling synchronous movement without complex direct coupling mechanisms

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If a sequencing mechanism is made simple, then ease of manufacture is improved, but reliability of synchronous movement deteriorates

Engineering Contradiction:

Improvesimplicity of sequencing mechanismVSAvoidreliability of synchronous movement

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The synchronizing member automatically engages and disengages with the rails during movement, eliminating the need for external control mechanisms while ensuring reliable synchronous operation through self-actuating design

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The synchronizing mechanism transitions from static to dynamic engagement, where the synchronizing member moves between engaged and disengaged states based on rail position, providing reliable control with simple structure

Inventive Principle:

Principle #15Dynamics

3Productivity

If the slide rail assembly allows continuous movement, then productivity is improved, but control over engagement and disengagement deteriorates

Engineering Contradiction:

Improveefficiency of extension and retractionVSAvoidcontrol over engagement

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The disengaging feature provides mechanical feedback that automatically triggers disengagement of the synchronizing member at predetermined positions, ensuring precise control without continuous manual intervention while maintaining continuous movement capability

Inventive Principle:

Principle #23Feedback

Data Source

PatentEP3656251B1Slide rail assembly

Publication Date: 2020.12.16 KING SLIDE WORKS CO LTD

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AI summary

A slide rail assembly (20) includes a first rail (22), a second rail (24), a mounting member (30), a third rail (26), a fourth rail (28) and a synchronizing member (60) arranged on the mounting member (30) . The third rail (26) and the fourth rail (28) are arranged on two sides of the mounting member (30) . The third rail (26) is movable relative to the first rail (22) and the second rail (24) is movable relative to the fourth rail (28) . When the second rail (24) is moved from a retracted position along a direction, the second rail (24) and the mounting member (30) are synchronously moved through the synchronizing member (60) . When the second rail (24) and the mounting member (30) are moved to a predetermined position, the synchronizing member (60) is driven by the disengaging member of the first rail (22) to be no longer synchronously moved.