Slide Rail Assembly with Automatic Unlocking During Detachment

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Solution Overview

Problem

Existing slide rail assemblies require manual operation to switch from a locking state to an unlocking state, which is inconvenient for detachment from a rack.

Innovation Solution

A slide rail assembly design where the locking member switches from a locking state to an unlocking state automatically during relative movement of the first rail and second bracket device, eliminating the need for manual operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual operation is required to switch from locking state to unlocking state, then the locking mechanism is reliable, but the ease of operation deteriorates

Engineering Contradiction:
Improvelocking mechanism reliabilityVSAvoidunlocking operation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking member is designed to automatically switch from locking state to unlocking state by utilizing the relative movement between the first rail and second bracket device. The first predetermined feature on the first rail and second predetermined feature on the locking member automatically interact during movement, causing the locking member to unlock without requiring manual operation by the user.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The predetermined features are pre-configured on the first rail and locking member respectively, positioned such that when the first rail moves relative to the second bracket device, these features automatically engage to trigger the unlocking action before the detachment process is completed, ensuring smooth operation.

Inventive Principle:
Principle #10Preliminary action

2Device complexity

If manual operation is required to unlock, then the device complexity is reduced, but the productivity deteriorates

Engineering Contradiction:
Improveunlocking mechanism complexityVSAvoiddetachment efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The locking member automatically performs the unlocking function through the interaction of predetermined features during relative movement, eliminating the need for separate manual unlocking operations and thereby improving detachment efficiency without significantly increasing device complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The locking member is designed with movable characteristics, allowing it to automatically transition between locking and unlocking states based on the relative movement between components. This dynamic design enables the system to adapt to different operational states automatically.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4629760A1Slide rail assembly
Publication Date: 2025.10.08 KING SLIDE WORKS CO LTD
  • EP4629760A1 patent drawingFigure 1
  • EP4629760A1 patent drawingFigure 2
  • EP4629760A1 patent drawingFigure 3

AI summary

A slide rail assembly (20, 200) includes a first rail (22, 212), a first bracket device (24) and a second bracket device (26, 202). The first rail (22, 212) includes a first predetermined feature (28, 206). The first bracket device (24) is arranged on the first rail (22, 212). The second bracket device (26, 202) includes a locking member (30, 204) having a second predetermined feature (32, 211). During a relative movement between the first rail (22, 212) and the second bracket device (26, 202), the first predetermined feature (28, 206) of the first rail (22, 212) and the second predetermined feature (32, 211) of the locking member (30, 204) are configured to abut against each other, in order to move the locking member (30, 204) to switch from a first state to a second state.