Optical Disk Drive Tray Fastening Mechanism
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Solution Overview
Problem
Conventional optical disk drives face issues with the tray displacing or ejecting improperly due to external forces, such as an exploding optical disk, leading to separation of protrudent blocks and loss of fastening, which compromises the safety of the disk and operational mechanisms.
Innovation Solution
The optical disk drive employs a first and second fastening structure with hooks that correspondingly fasten to restrict the tray's displacement along the vertical direction, ensuring it remains seated within the body, using a raiser and traverse design with hooks that interlock to prevent separation under external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protrudent blocks are used for fastening the tray, then the tray can be secured in the body, but the tray may still separate under excessive external forces
Solution Approach 1:
The fastening system is divided into multiple independent fastening structures (first fastening structure with first protrudent block and first groove, second fastening structure with second protrudent block and second groove) distributed at different positions. This segmentation ensures that if one fastening point experiences excessive force, other fastening points continue to provide support, preventing complete separation of the tray from the body.
Solution Approach 2:
Multiple fastening structures are combined to work together as a unified fastening system. The first and second fastening structures operate simultaneously, creating a distributed fastening network that distributes external forces across multiple connection points, thereby increasing overall resistance to excessive forces while maintaining reliable fastening.
2Ease of operation
If the tray is designed to be movable for disk ejection, then user accessibility is improved, but the tray becomes vulnerable to displacement under external forces
Solution Approach 1:
The fastening system is designed to be dynamic rather than permanently fixed. The protrudent blocks can engage with and disengage from the grooves, allowing the tray to be movable during normal operation for disk ejection while automatically securing the tray in position when engaged, thus providing both ease of operation and position stability.
Solution Approach 2:
The fastening structures are pre-configured to automatically engage and prevent displacement before excessive forces can cause separation. The protrudent blocks and grooves are positioned and dimensioned to create preliminary resistance to external forces, counteracting potential displacement before it occurs.
Data Source
AI summary
An optical disk drive includes a body, a tray, a first fastening structure, and a second fastening structure. The body has an opening. The tray is coupled to the body and movable at the opening. The first fastening structure is disposed at the body, and the second fastening structure is disposed at the tray. When the tray is situated in the body, the first fastening structure and second fastening structure are correspondingly fastened to each other to restrict the displacement of the tray along the vertical direction in the body.