Slide rail assembly and rail kit thereof

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Solution Overview

Problem

Existing slide rail assemblies lack versatility to accommodate different mounting environments and specific requirements for equipment maintenance, particularly in limited spaces, as they often rely on fixed blocking mechanisms that do not adapt well to varying extension lengths.

Innovation Solution

The slide rail assembly incorporates a dual locking device system with adjustable components, including elastic sections and guiding features, allowing the second rail to be locked at different positions and extension lengths, enabling flexible operation and adaptation to various mounting conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fixed blocking mechanism is used to lock the second rail at a predetermined position, then the locking reliability is improved, but the adaptability to different mounting environments and extension lengths deteriorates

Engineering Contradiction:
Improvelocking reliabilityVSAvoidadaptability to different mounting environments
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The blocking structure is designed to be movable rather than fixed. The blocking structure can move between a blocking state (where it prevents further movement of the second rail) and a non-blocking state (where it allows movement). This dynamic capability enables the same mechanism to adapt to different mounting environments and extension lengths while maintaining reliable locking when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The blocking structure serves multiple functions: it can lock the second rail at different positions along the first rail, it can be moved to allow equipment maintenance access, and it can adapt to various mounting environments. This multi-functionality resolves the contradiction by making a single mechanism versatile enough to handle different scenarios while maintaining reliability through its blocking capability.

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

2Stability of the object's composition

If a blocking structure is provided to prevent further movement of the second rail at a predetermined position, then the position holding capability is improved, but the ease of operation for equipment maintenance deteriorates

Engineering Contradiction:
Improveposition holding capabilityVSAvoidease of operation for equipment maintenance
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The blocking structure is designed to be movable between blocking and non-blocking states. When equipment maintenance is needed, the blocking structure can be moved to the non-blocking state, allowing the second rail to be freely moved for access. When positioning is needed, it returns to the blocking state to hold the position stably. This dynamic behavior resolves the contradiction between stable position holding and ease of operation.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If a dual locking device system with adjustable components is implemented, then the adaptability to different extension lengths is improved, but the device complexity increases

Engineering Contradiction:
Improveadaptability to different extension lengthsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The locking system is divided into multiple discrete blocking structures, each capable of independently blocking at different positions. Rather than one complex adjustable mechanism, multiple simpler blocking structures are used, each handling a specific position. This segmentation reduces individual component complexity while achieving overall adaptability through the combination of multiple simple elements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each blocking structure can independently move between blocking and non-blocking states, allowing flexible configuration for different extension lengths. This dynamic capability of multiple simple components achieves the adaptability of a complex adjustable system while keeping individual components simpler and more maintainable.

Inventive Principle:
Principle #15Dynamics

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 design allows the slide rail assembly to achieve multiple extension states, facilitating easy operation and adaptation to different environments, ensuring effective locking and unlocking mechanisms for efficient equipment maintenance.

Implementation Method 1

a blocking structure movable relative to the first rail and configured to block the second rail when the blocking structure is in a blocked state

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3440961B1Slide rail assembly and rail kit thereof
Publication Date: 2019.08.07 KING SLIDE WORKS CO LTD
  • EP3440961B1 patent drawingFigure 1
  • EP3440961B1 patent drawingFigure 2~3
  • EP3440961B1 patent drawingFigure 4

AI summary

A slide rail assembly (20) includes a first rail (24), a second rail (26) and a locking device (54) . The first rail (24) includes a blocking part (34). The second rail (26) is movable relative to the first rail (24). The locking device (54) is arranged on the second rail (26). The locking device (54) includes a first part (66) and a second part (68). A first space is defined between the first part (66) and the second part (68) . When the second rail (26) is located at a predetermined position relative to the first rail (24), a second space is defined between the first part (66) and the second part (68) for accommodating the blocking part (34), and the first part (66) and the second part (68) of the locking device (54) are configured to respectively block two sides of the blocking part (34) of the first rail (24).