Rack Slide Assembly With Hook Locking Against Chassis Slippage

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Solution Overview

Problem

Conventional rack systems lack a mechanism to securely install a chassis to the rack, leading to potential slippage and equipment damage or injury.

Innovation Solution

A slide assembly comprising a first and second rail, a first and second bracket, and an engaging member with a resilient force to maintain the chassis in place, utilizing a hook portion that inserts into an engaging space bounded by the rack posts, preventing the chassis from being pulled out.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional bracket assembly is used to install a chassis to a rack, then the structure is simple, but the chassis may slip off from the rack easily causing equipment damage or injury

Engineering Contradiction:
Improvechassis securityVSAvoidinstallation mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The installation mechanism is segmented into multiple functional components: a bracket assembly with bracket body and engaging member, a separate resilient member (spring), and a hook portion on the chassis. This segmentation allows each component to perform its specific function while working together to provide secure chassis installation without excessive overall complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The resilient member (spring) provides automatic engagement force to the engaging member, creating a self-locking mechanism that secures the chassis without requiring additional fastening operations. The spring's elastic force automatically maintains engagement pressure, making the system self-regulating and reliable.

Inventive Principle:
Principle #25Self-service

2Reliability

If a secure engagement mechanism is added to prevent chassis slippage, then the chassis security is improved, but the installation and removal operation becomes more complex

Engineering Contradiction:
Improvechassis securityVSAvoidinstallation and removal ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The engaging member is designed to be movable relative to the bracket body, allowing it to dynamically adjust its position during installation and removal. The resilient member provides continuous force to maintain engagement, while the movable design allows easy release when needed, balancing security with operational ease.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The engaging member acts as an intermediary between the bracket assembly and the chassis hook portion. It translates the simple insertion motion of the chassis into a secure engaged state, and vice versa for removal, simplifying the user's interaction while ensuring reliable security.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If a resilient member is used to maintain engagement force, then the chassis security is improved, but the device complexity increases

Engineering Contradiction:
Improveengagement force maintenanceVSAvoidmechanism component count
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The resilient member (spring) is a passive component that automatically provides engagement force without requiring external power sources, control systems, or additional actuators. It self-regulates the engagement force based on its elastic properties, maintaining reliability while adding minimal complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The resilient member changes the physical parameter of engagement force dynamically, providing continuous pressure to maintain security. By using a simple elastic element rather than an active control system, the patent achieves force maintenance with minimal added complexity.

Inventive Principle:
Principle #35Parameter changes

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

The slide assembly effectively secures the chassis within the rack, preventing slippage and ensuring safe installation and removal.

Implementation Method 1

A resilient member provides a force to the engaging member to maintain the first fastening portion to be connected to the first post of the rack

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2896324B1A rack comprising a slide assembly and a chassis
Publication Date: 2016.11.16 KING SLIDE WORKS CO LTD
  • EP2896324B1 patent drawingFigure 1
  • EP2896324B1 patent drawingFigure 2
  • EP2896324B1 patent drawingFigure 3

AI summary

A slide assembly (12) used for installing a chassis (74) to a rack (10) includes an engaging member (58) which includes a body portion (60), a first fastening portion (62) and a second fastening portion (64). The first and second fastening portions (62, 64) are perpendicularly connected to an end of the body portion (60). The second fastening portion (64) bends and extends from an end of the first fastening portion (62). An engaging space (66) is bounded by the second fastening portion (64) and the rack (10) when the slide assembly (12) is installed to the rack (10). A hook portion (84) of the chassis (74) can be inserted into the engaging space (66) to contact against the second fastening portion (64) so that the chassis (74) is not allowed to be pulled out from the rack (10) when the chassis (74) is installed to the rack (10).