Slide Rail Support Structure for Extended Load-Bearing Stability

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Solution Overview

Problem

In slide rail assemblies for rack-based server systems, the load-bearing capacity of the second rail is compromised when it is extended, as a section of the rail remains unsupported, posing challenges during the mounting of electronic equipment chassis.

Innovation Solution

A supporting base is introduced, which is movably connected to a bracket base and includes a wall portion and supporting portions that define a supporting channel corresponding to the longitudinal channel of the first rail, allowing the second rail to be supported during its displacement from a retracted to an extended position, thereby enhancing load-bearing capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the second rail is extended relative to the first rail to enable chassis mounting, then the reachability and accessibility are improved, but the load-bearing capacity deteriorates due to the unsupported section

Engineering Contradiction:
ImprovereachabilityVSAvoidload-bearing capacity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

A supporting base is introduced as an intermediary component between the first rail and the second rail. The supporting base includes a supporting portion that provides additional support to the second rail when it is in the extended position, thereby maintaining load-bearing capacity while enabling the second rail to extend for chassis mounting operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The support structure is segmented into multiple components: the first rail, the second rail, and the supporting base with its supporting portion. This segmentation allows the supporting base to independently provide support to the extended section of the second rail, resolving the contradiction between extension and load-bearing capacity.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the second rail is extended to allow chassis mounting, then the functionality is improved, but the structural stability deteriorates due to lack of support

Engineering Contradiction:
ImprovefunctionalityVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The supporting base acts as a mediator that maintains structural stability when the second rail is extended. The supporting portion of the base contacts and supports the second rail, preventing structural instability while allowing the extended configuration necessary for chassis mounting functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the second rail is extended relative to the first rail, then the operational flexibility is improved, but the mechanical strength deteriorates due to the unsupported section

Engineering Contradiction:
Improveoperational flexibilityVSAvoidmechanical strength
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The supporting base serves as an intermediary support structure that enables the second rail to extend while maintaining mechanical strength. The supporting portion provides the necessary mechanical support to the extended section, allowing operational flexibility without sacrificing mechanical strength.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The support is provided in a different spatial dimension by the supporting base, which is positioned to support the second rail from below or from the side, rather than relying solely on the first rail. This dimensional change in support configuration enables both extension and strength.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS9504181B2Slide rail assembly
Publication Date: 2016.11.22 KING SLIDE WORKS CO LTD
  • US9504181B2 patent drawing
  • US9504181B2 patent drawing
  • US9504181B2 patent drawing

AI summary

A slide rail assembly includes a first rail, a second rail movably connected to the first rail, a bracket base connected to the first rail, and a supporting base movably mounted to the bracket base. The supporting base includes a wall portion and at least one supporting portion transversely connected to the wall portion. The wall portion and the at least one supporting portion jointly define a supporting channel corresponding to a longitudinal channel defined by the first rail. The at least one supporting portion of the supporting base supports the second rail as the second rail is longitudinally displaced relative to the first rail and extends through the longitudinal channel of the first rail and the supporting channel of the supporting base.