Slide rail assembly and rail kit thereof

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Solution Overview

Problem

Existing slide rail assemblies lack flexibility to accommodate different market requirements for limited space applications, particularly in equipment maintenance, where they need to provide varying extension lengths and ease of operation.

Innovation Solution

A slide rail assembly with a dual locking mechanism, comprising first and second locking devices on the second rail, which change the space configuration to accommodate and lock the blocking part of the first rail at different positions, allowing for adjustable extension lengths and easy retraction, utilizing elastic sections and guiding features for precise movement control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single locking mechanism is used in the slide rail assembly, then the structure is simple, but it cannot accommodate different market requirements for limited space applications and equipment maintenance

Engineering Contradiction:
Improveadaptability to different market requirementsVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The locking mechanism is segmented into multiple independent locking devices (first locking device with first and second members, second locking device with third and fourth members), each capable of independent operation. This segmentation allows the slide rail assembly to provide different extension lengths by engaging different locking devices, thereby adapting to various market requirements while maintaining a modular structure that doesn't excessively increase complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism employs dynamic members that can change position relative to fixed members. The first and second members of the first locking device, and the third and fourth members of the second locking device, are configured to move between locked and unlocked positions. This dynamic capability enables the assembly to adapt between different extension states (retracted, first predetermined position, second predetermined position) to meet varying space requirements.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple locking devices are added to provide adjustable extension lengths, then adaptability improves, but device complexity increases

Engineering Contradiction:
Improveadjustable extension lengthsVSAvoidlocking mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Each locking device is designed with universal functionality to accommodate the blocking part of the first rail. The first locking device can lock at the first predetermined position, and the second locking device can lock at the second predetermined position. Both locking devices share similar structural principles (fixed member and movable member configuration), which reduces the overall complexity increase despite having multiple locking positions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The locking devices are arranged in a nested configuration where the first locking device and second locking device are positioned along the second rail at different locations. The members of each locking device nest within the structural framework of the slide rail assembly, with elastic sections providing compact storage when not engaged. This nesting approach minimizes space occupation and reduces the perceived complexity of having multiple locking mechanisms.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Manufacturing precision

If the space between locking device members is reduced to accommodate the blocking part, then locking precision improves, but the locking device cannot accommodate the blocking part at other positions

Engineering Contradiction:
Improvelocking precisionVSAvoidposition accommodation capability
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

Each locking device is designed with local quality optimization where the space between its specific members (first and second members for the first locking device, third and fourth members for the second locking device) is configured to precisely accommodate the blocking part at its designated locking position. The first locking device provides precise locking at the first predetermined position, while the second locking device provides precise locking at the second predetermined position. This localized precision approach allows each locking device to maintain high manufacturing precision for its specific function while the overall system achieves versatility through multiple such localized solutions.

Inventive Principle:
Principle #3Local quality

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 the slide rail assembly to adapt to different mounting environments by providing adjustable extension lengths and convenient operation, ensuring secure locking and easy retraction, thus meeting specific requirements for equipment maintenance.

Implementation Method 1

the first member further comprises a first elastic section. The first part is arranged at an end of the first elastic section. The second member further comprises a second elastic section. The second part is arranged at an end of the second elastic section.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10413066B2Slide rail assembly and rail kit thereof
Publication Date: 2019.09.17 KING SLIDE WORKS CO LTD
  • US10413066B2 patent drawing
  • US10413066B2 patent drawing
  • US10413066B2 patent drawing

AI summary

A slide rail assembly includes a first rail, a second rail and a locking device. The first rail includes a blocking part. The second rail is movable relative to the first rail. The locking device is arranged on the second rail. The locking device includes a first part and a second part. A first space is defined between the first part and the second part. When the second rail is located at a predetermined position relative to the first rail, a second space is defined between the first part and the second part and configured to accommodate the blocking part, and the first part and the second part of the locking device are configured to respectively block two sides of the blocking part of the first rail.