Self-Restoring Sheet Stopper for Disk Drive Pickup Protection
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Solution Overview
Problem
Existing disk drive systems lack an effective mechanism to restrict the movement of the pickup mechanism during external forces, such as transportation, and do not allow for easy removal of stoppers without compromising their functionality.
Innovation Solution
A self-restoring sheet stopper with a restricting portion, connecting portion, and tab portion is integrated into the disk drive, where the restricting portion is placed inside the rail, the connecting portion is on the mounting face, and the tab portion projects outside, allowing the stopper to restrict pickup movement and be easily removed by unfolding and passing through a gap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stopper is used to restrict pickup movement during transportation, then the pickup is protected from damage, but the stopper may be caught in the rail or impair the pickup's function
Solution Approach 1:
The stopper is divided into multiple functional segments: a restricting portion that contacts the pickup, a connecting portion that attaches to the tray, and a tab portion that facilitates removal. This segmentation allows each part to perform its specific function while minimizing interference with the pickup's normal operation.
Solution Approach 2:
The tab portion is designed to project outside the disk drive through a gap between the tray and exterior casing, allowing the stopper to be easily removed by pulling the tab. This extraction of the removal mechanism separates the stopper's protective function from its removal function, enabling easy access without disassembling the entire drive.
2Reliability
If a traditional stopper structure is used, then the pickup movement is restricted, but the stopper is difficult to remove without disassembling the drive
Solution Approach 1:
The tab portion serves as an intermediary element that extends beyond the drive's exterior casing, providing a accessible grip point for removal. This intermediary structure bridges the gap between the internal stopper mechanism and the external user interface, enabling easy removal without internal disassembly.
Solution Approach 2:
The stopper is pre-configured with the tab portion projecting outside the drive during assembly, so that the removal mechanism is already in place and accessible. This preliminary arrangement eliminates the need for complex disassembly procedures during removal.
3Ease of operation
If the stopper is made from a self-restoring sheet, then the stopper can be easily removed by unfolding, but the stopping mechanism becomes more complex
Solution Approach 1:
The stopper is constructed from a self-restoring sheet material that can be folded into the restricting configuration and then unfolded for removal. This flexible sheet structure replaces rigid components and mechanical fasteners, simplifying the overall device while enabling easy removal through the inherent elastic recovery of the material.
Solution Approach 2:
The stopper transitions between two dynamic states: a folded state that provides the stopping function, and an unfolded state that facilitates removal. The self-restoring property of the sheet material enables this dynamic transformation without additional actuators or complex mechanisms.
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 stopper effectively restricts pickup movement during external forces, preventing damage and allowing for easy removal, enhancing the structural integrity and ease of use by reducing the likelihood of the stopper being caught in the rail or impairing the pickup's function.
Implementation Method 1
the stopper is formed of a sheet member having a self-restoring property which allows the sheet member to return to a flat plate shape
Data Source
AI summary
The disk drive includes: a box-shaped exterior casing having an opening on one side face; a tray stored in the exterior casing and having a mounting face; a pickup; and a rail being a recessed portion formed on the mounting face as a path along which the pickup moves. The stopper is formed of a sheet member having a self-restoring property which allows the sheet member to return to a flat plate shape, and includes: a restricting portion; a connecting portion; and a tab portion, which are formed by folding the sheet member. When the stopper is stored in the disk drive, the stopper is disposed such that the restricting portion is disposed in the inside of the rail, the connecting portion is disposed on the mounting face, and the tab portion projects outside through a gap formed between the tray and the exterior casing.