Sliding Mechanism Positioning Lock With Spring-Biased Stop Retention

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Solution Overview

Problem

Conventional sliding mechanisms in personal computers are prone to damage from external impacts due to the fragility of hook-and-loop fasteners or locking structures, leading to instability and failure when the interior plate is pulled outward.

Innovation Solution

A slide positioning device with a stop block on the intermediate plate and a position limiting unit on the interior plate, including a release rod and resilient elements, which securely retains the stop block to prevent relative movement and withstand external forces, allowing easy disengagement for removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If hook-and-loop fasteners or locking structures are used to retain the interior plate, then the interior plate can be pulled outward from the intermediate plate, but the fasteners or locking structures are easily damaged by external impacts, leading to mechanism failure

Engineering Contradiction:

Improveease of pulling interior plate outwardVSAvoidresistance to damage from external impacts

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent introduces a resilient element (spring) that acts as a cushioning mechanism between the limiting stub and the stop block. This spring absorbs external impacts before they can damage the locking structure, thereby maintaining reliability while preserving the ease of operation for pulling the interior plate outward.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The resilient element serves as an intermediary between the rigid limiting stub and the stop block. It mediates the interaction by providing a compliant interface that protects the locking mechanism from direct impact forces while still allowing the intended pulling operation to function properly.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If conventional fixing devices with multiple pieces are used, then stability is provided to the server, but manufacturing cost increases due to too many pieces

Engineering Contradiction:

Improvestability of server when pulled outwardVSAvoidnumber of pieces in fixing device

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent merges multiple components into an integrated limiting unit comprising the limiting stub, resilient element, and stop block assembly. This consolidation reduces the number of separate pieces while maintaining the stability function, thereby lowering manufacturing complexity and cost.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The limiting unit serves multiple functions: it provides stability when the interior plate is pulled outward, absorbs external impacts, and allows easy release when needed. This multi-functionality eliminates the need for separate fixing devices, reducing overall device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If the interior plate is fully pulled outward from the intermediate plate, then the server is accessible for repair, but the locking structure is subjected to great impact and easily damaged

Engineering Contradiction:

Improveaccessibility of server for repairVSAvoidexternal impact on locking structure

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The resilient element is pre-installed in the limiting unit to provide cushioning protection before any impact occurs. When the interior plate is fully pulled outward or when external forces are applied, the spring absorbs the shock, preventing damage to the locking structure while maintaining full accessibility for server repair.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

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 solution enhances the stability of the sliding mechanism by preventing damage from external impacts and allowing easy removal and reinsertion of the interior plate, reducing the risk of mechanism failure.

Implementation Method 1

a resilient element engaging resiliently the propeller portion for restricting a longitudinal movement of the release rod with respect to the interior plate

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

a biasing element mounted between for biasing the first and second limiting stubs in such a manner that the pointed free ends extend into the limit notch

Methodology Applied

Scientific EffectElastic force: Elasticity

Data Source

PatentUS9217536B1Fixing device for sliding mechanism

Publication Date: 2015.12.22 JOCHU TECH

AI summary

A positioning device for a sliding mechanism that includes exterior, intermediate and interior plates, each plate defining inner and outer side surfaces, the positioning device is characterized by: the intermediate plate having a stop block formed on the inner side surface; and the interior plate including an elongated release rod that is mounted movably on the outer side surface and that has a limit notch receiving the block, and a resilient element engaging the propeller portion for restricting a longitudinal movement of the rod, the interior plate having a position limiting unit constituted by two limiting stubs mounted movably on the outer side surface and having pointed free ends and a biasing element for biasing the limiting stubs in such a manner that the pointed free ends extend into the notch to contact opposite ends of the block, thereby preventing relative movement between the interior and intermediate plates.