Optical Disk Storage Mechanism Single Motor Drive
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Solution Overview
Problem
Existing storage/retrieval devices for optical disks require three motors and complex transmission mechanisms, making them cumbersome and costly, while still needing to ensure convenient and reliable operation.
Innovation Solution
A simplified storage/retrieval device using a single motor to drive a disk shelf with a pulley and friction mechanism, combined with a pivotable ejecting member and dual rollers to move optical disks in and out through an access slot, reducing the number of motors and transmission mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If three motors and three sets of transmission mechanisms are used for separate operations of disk shelf, holding/transporting device, and ejecting device, then reliable storage/retrieval operation is achieved, but device complexity and cost increase
Solution Approach 1:
The patent combines three separate motors and transmission mechanisms into a single motor system. The disk shelf motor drives the disk shelf rotation, while simultaneously driving the holding/transporting device and ejecting device through a shared transmission mechanism involving driving rollers, driven rollers, belts, and pulleys. This merging reduces component count while maintaining operational reliability through coordinated mechanical linkage.
Solution Approach 2:
The single motor and transmission system perform multiple functions: rotating the disk shelf to position compartments, transporting optical disks between compartments and the access slot, and ejecting disks from compartments. The driving and driven rollers serve both as transport mechanisms and as actuators for the ejecting device, demonstrating multi-functionality that reduces overall system complexity.
2Ease of operation
If three motors and transmission mechanisms are used for separate operations, then complete control over disk shelf, holding/transporting device, and ejecting device is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges three separate motor systems into one, directly reducing manufacturing costs associated with purchasing, installing, and maintaining multiple motors. The shared transmission mechanism uses standard components like belts and pulleys that are cost-effective to manufacture, while still providing complete control over all storage and retrieval operations through coordinated mechanical design.
3Ease of operation
If multiple separate mechanisms are used for disk shelf rotation, disk transport, and disk ejection, then precise control is achieved, but space occupation increases
Solution Approach 1:
The patent consolidates multiple transmission mechanisms into a compact integrated system where the driving and driven rollers are positioned adjacently, sharing common mounting structures and space. The belt-driven pulley system for the ejecting mechanism is integrated with the existing roller assembly, reducing the overall footprint while maintaining precise control capabilities for all operations.
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 allows for efficient and reliable storage and retrieval of optical disks with a reduced number of components, minimizing space and cost while maintaining convenient operation.
Implementation Method 1
A first compression spring is mounted around the end of the first axle. The first compression spring biases the first wheel against the first friction member and the first pulley
Implementation Method 2
the first wheel rotates together with the pulley due to friction between the first friction member and the first wheel and friction between the first friction member and the first pulley
Data Source
AI summary
A storage/retrieval device for optical disks includes a container having an access slot. A disk shelf is rotatably mounted in the container and includes a plurality of storage compartments each for receiving an optical disk. A driving roller and a driven roller are rotatably mounted in the container for moving an optical disk into or out of the container via the access slot. An ejecting member includes a first end pivotably supported in the container and a second end operably coupled with the driving roller. The ejecting member is pivotable between a first position in one of the storage compartments for moving an optical disk in the storage compartment out of the storage compartment and a second position outside the storage compartment. A motor is provided to drive the driving roller for rotating the driving roller and the driven roller in opposite directions and for pivoting the ejecting member.