Three-section slide rail device

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional three-section slide rail devices face challenges in accurately aligning the inner section with the ball sliding plate during reinstallation, leading to potential damage to the ball sliding plate.

Innovation Solution

The three-section slide rail device incorporates a synchronizing actuating member that engages with a synchronizing block on the ball sliding plate, synchronizing its movement with the inner section until the positioning hole of the ball sliding plate is engaged with a leaf spring, facilitating accurate alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the inner section is pulled out from the middle section for maintenance, then maintenance access is improved, but alignment accuracy during reinstallation deteriorates causing potential damage to the ball sliding plate

Engineering Contradiction:

Improvemaintenance accessVSAvoidalignment accuracy

Core Design Contradiction:

Ease of repairVSManufacturing precision

Solution Approach 1:

The synchronizing actuating member is pre-configured with a synchronizing block that engages with the ball sliding plate before the inner section is fully removed. This preliminary engagement maintains the relative position and alignment between the inner section and ball sliding plate throughout the maintenance process, ensuring accurate realignment during reinstallation without requiring precise manual positioning.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The synchronizing actuating member serves as an intermediary mechanism between the inner section and the ball sliding plate. Through the synchronizing block and positioning hole engagement, it mediates the relationship between these components, ensuring that even when the inner section is extracted for maintenance, the alignment information is preserved and can be easily restored.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If the ball sliding plate is not positioned during extending and retraction movements, then device complexity is reduced, but reliability deteriorates due to misalignment and potential damage

Engineering Contradiction:

Improvestructure complexityVSAvoidoperational reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The synchronizing actuating member is designed to be pivotably mounted, allowing it to dynamically adjust its position during extending and retraction movements. The synchronizing block engages with the ball sliding plate only when needed for positioning, while allowing free movement during normal operation, thus maintaining reliability without excessive complexity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The positioning mechanism is designed to be self-activating through the engagement between the synchronizing block and positioning hole. When the inner section is moved to a specific position, the synchronizing actuating member automatically engages with the ball sliding plate through the synchronizing block and positioning hole, providing self-positioning without requiring additional control systems or complex actuation mechanisms.

Inventive Principle:

Principle #25Self-service

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

This solution ensures precise alignment of the inner section with the ball sliding plate during reinstallation, preventing damage and improving the reliability of the slide rail device.

Implementation Method 1

a positioning hole which is formed in the plate body... until the positioning hole of the ball sliding plate is engaged with the leaf spring

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

The synchronizing actuating member is in an abutting engagement with the synchronizing block during an extended movement of the inner section relative to the middle section to synchronize movement of the ball sliding plate with the inner section

Methodology Applied

Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS12251016B2Three-section slide rail device

Publication Date: 2025.03.18 FIRST DOME

AI summary

A three-section slide rail device includes an outer section, a middle section and an inner section. The middle section includes a middle rail slidably disposed on the outer section, a ball sliding plate slidably disposed on the middle rail, and a leaf spring at one end of the middle rail. The ball sliding plate has a plate body, a synchronizing block and a positioning hole formed on the plate body. The inner section includes an inner rail and a synchronizing actuating member pivotably mounted to the inner rail. The synchronizing actuating member is in an abutting engagement with the synchronizing block during an extended movement of the inner section relative to the middle section to make synchronizing movement of the ball sliding plate with the inner section until the positioning hole of the ball sliding plate is engaged with the leaf spring.