Slide Rail Assembly with Compensating Device

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Solution Overview

Problem

Existing slide rail systems face challenges in accurately compensating for errors in the relative position of at least two slide rails, particularly due to deviations caused by repeated movements and external forces.

Innovation Solution

A slide rail assembly that includes a first rail, a second rail, a third rail, a first feature, and a compensating device. The compensating device is movable between two states and is designed to synchronize the displacement of the second rail with the first rail, compensating for errors by abutting against the first feature and blocking portions of the third rail.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a compensating device is introduced to correct position errors between slide rails, then positioning precision is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a compensating device as an intermediary mechanism between the first and second slide rails. This device includes a blocking portion that can engage with a limiting portion on the second rail, and a driving portion that interacts with the first rail. When position errors occur, the compensating device acts as a mediator to transfer and synchronize movements, correcting the positional deviation without requiring complex active control systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The compensating device operates autonomously based on the relative position between the two rails. When a position error occurs, the blocking portion automatically engages with the limiting portion, and the driving portion is passively driven by the movement of the first rail to synchronize the second rail's position. The device self-corrects the error without requiring external control signals or complex actuation mechanisms.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If the compensating device continuously synchronizes rail positions, then positioning accuracy is improved, but energy consumption increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The compensating device does not operate continuously but activates periodically only when position errors occur. The blocking portion engages with the limiting portion only during synchronization events, and the driving portion is driven only when the first rail's movement detects a position deviation. This periodic operation mode maintains positioning accuracy while minimizing energy consumption by keeping the device in a passive state during normal operation.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent extracts the active control function from the compensating device, leaving only passive mechanical elements. The blocking portion and driving portion are designed to engage and transfer motion only when necessary for correction. By removing continuous active control, the device achieves positioning accuracy through passive mechanical synchronization, significantly reducing energy consumption.

Inventive Principle:
Principle #2Taking out (Extraction)

3Measurement precision

If the blocking portion continuously blocks the compensating device, then position error correction is improved, but operational smoothness deteriorates

Engineering Contradiction:
Improveposition error correctionVSAvoidoperational smoothness
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The blocking portion is designed with dynamic characteristics, transitioning between blocked and unblocked states based on operational needs. During normal operation, the blocking portion is unblocked to allow smooth movement of the compensating device. When position errors are detected, the blocking portion engages to correct the error, then disengages to restore smooth operation. This dynamic state change ensures both position error correction and operational smoothness.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The blocking portion is positioned and configured to engage with the limiting portion only when position deviations occur. The design anticipates potential position errors and provides a corrective blocking action only when needed, rather than continuous blocking. This preliminary positioning of the blocking mechanism ensures that it intervenes selectively to correct errors without interfering with normal smooth operation.

Inventive Principle:
Principle #9Preliminary anti-action

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

Effectively compensates for errors in the relative position of the slide rails, ensuring precise alignment and smooth operation by synchronizing the displacement of the rails and terminating blocking relations when the compensating device is in its second state.

Implementation Method 1

a first aid-sliding device (28) including at least one first rotating member (32) configured to be rotatably supported between the first rail (22) and the second rail (24)

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS20250089892A1Slide rail assembly
Publication Date: 2025.03.20 KING SLIDE WORKS CO LTD
  • US20250089892A1 patent drawing
  • US20250089892A1 patent drawing
  • US20250089892A1 patent drawing

AI summary

A slide rail assembly includes a first rail, a second rail, an aid-sliding device, a compensating device and a third rail. The aid-sliding device is movably mounted between the first rail and the second rail. The compensating device is movably mounted on the second rail. The second rail is configured to be movably mounted on the third rail. The compensating device is configured to compensating an error of a relative position of the first rail and the second rail.