Disk Drive Regulation Member Stabilizes Base During Unloading

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional disk devices face issues with the drive base moving during the transition from releasing a disk held by the rotation drive unit to the completion of restriction by the restriction mechanism, which can cause the disk to be ejected improperly or the shielding mechanism to malfunction.

Innovation Solution

A disk device with a regulation member that abuts the housing to prevent movement of the drive base during this transition period, ensuring stable unloading and reliable operation of the shielding mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the drive base is elastically supported in the housing, then the drive base can be freely moved to facilitate disk unloading, but the drive base may move excessively during the transition period causing improper disk ejection or shielding mechanism malfunction

Engineering Contradiction:
Improvedisk unloading operationVSAvoiddisk ejection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The regulation member is positioned in advance to engage with the housing before the drive base completes its movement during disk unloading. This preliminary positioning ensures that when the drive base moves during the transition period, the regulation member restricts this movement proactively, preventing excessive displacement that could cause improper disk ejection or shielding mechanism malfunction.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The regulation member acts as an intermediary element between the elastically supported drive base and the housing. During the transition period when the drive base is released from the restriction mechanism, the regulation member mediates by providing temporary mechanical restriction through engagement with the housing, thereby controlling the drive base movement without requiring the drive base to be completely restricted throughout the entire unloading operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the restriction mechanism is used to restrict the drive base, then the drive base movement is controlled, but the disk may be ejected improperly if the drive base moves during the transition period

Engineering Contradiction:
Improvedrive base restrictionVSAvoiddisk unloading operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The regulation member is positioned in advance to engage with the housing before the drive base completes its movement during disk unloading. This preliminary positioning ensures that when the drive base moves during the transition period, the regulation member restricts this movement proactively, preventing excessive displacement that could cause improper disk ejection or shielding mechanism malfunction.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the restriction state of the drive base during the unloading operation. The regulation member provides temporary dynamic restriction during the transition period when the drive base is released from the main restriction mechanism, allowing controlled movement during unloading while preventing excessive movement that would cause improper ejection.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the shield switching section is disposed on the drive base, then the shielding mechanism can be operated, but the shielding mechanism may malfunction if the drive base moves during unloading

Engineering Contradiction:
Improveshielding mechanism operationVSAvoidshielding mechanism reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The regulation member acts as an intermediary element between the elastically supported drive base and the housing. During the transition period when the drive base is released from the restriction mechanism, the regulation member mediates by providing temporary mechanical restriction through engagement with the housing, thereby controlling the drive base movement without requiring the drive base to be completely restricted throughout the entire unloading operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The regulation member is positioned in advance to engage with the housing before the drive base completes its movement during disk unloading. This preliminary positioning ensures that when the drive base moves during the transition period, the regulation member restricts this movement proactively, preventing excessive displacement that could cause improper disk ejection or shielding mechanism malfunction.

Inventive Principle:
Principle #10Preliminary action

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 regulation member stabilizes the drive base, preventing it from moving during disk unloading and ensuring the disk is ejected correctly, while also allowing the shielding mechanism to function reliably.

Implementation Method 1

a drive base elastically supported in a housing

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a regulation member provided in the drive base so as to abut the housing and regulate movement of the drive base

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS9305588B2Drive base regulation member for disk device
Publication Date: 2016.04.05 ALPINE ELECTRONICS INC
  • US9305588B2 patent drawing
  • US9305588B2 patent drawing
  • US9305588B2 patent drawing

AI summary

In a disk device, as a switching slider which is disposed on a drive base moves in a first direction, a roller bracket moves in a second direction and a transport roller moves toward a facing member. Then, a roller bracket serves as a restriction member and the drive base is restricted in a housing. Before the drive base is restricted, a regulation member which is provided on the switching slider abuts a regulation projection of the housing so as to regulate inadvertent upward movement of the drive base. Accordingly, a disk during an unloading operation can be guided to an insertion/ejection port in a reliable manner.