Optical Disc Drive Centering Mechanism with Integrated Stopper
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical disc drives have a large number of components due to the use of multiple arms to guide the center of the optical disc to the spindle motor position.
Innovation Solution
An optical disc drive design that reduces the number of components by using a frame with a stopper portion to restrict the optical disc's backward movement and a bias member to push the disc toward the stopper, allowing the center of the disc to be guided to the spindle motor position efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a plurality of arms is used to guide the optical disc center to the spindle motor position, then the disc centering function is improved, but the number of components increases
Solution Approach 1:
The patent combines multiple arms into a single integrated guiding mechanism. The frame includes a stopper portion that works with a bias member to achieve disc centering, eliminating the need for multiple separate arms while maintaining the centering function.
Solution Approach 2:
The frame structure serves multiple functions: it provides mechanical support, includes the stopper portion for positioning, and integrates the bias member for applying force. This multi-functional design reduces the overall number of components needed for disc centering.
2Ease of operation
If multiple arms are used for guiding the optical disc, then the centering capability is enhanced, but the device complexity increases
Solution Approach 1:
The patent merges the functions of multiple guiding arms into a single frame structure with integrated stopper and bias components, simplifying the device while maintaining centering capability.
Solution Approach 2:
The frame is segmented into functional portions: the stopper portion for positioning and the bias member for applying force. This segmentation allows each component to perform its specific function independently while reducing overall complexity.
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 proposed design effectively guides the optical disc's center to the spindle motor position while minimizing the number of components, enhancing the drive's efficiency and reducing manufacturing costs.
Implementation Method 1
a bias member including a contact portion located on a side opposite to the stopper portion across the optical disc having reached the position of the spindle motor, the bias member being configured to use the contact portion to push the optical disc toward the stopper portion
Data Source
AI summary
There is provided an optical disc drive that can guide the center of an optical disc to the position of a spindle motor, while allowing the number of components to be reduced. A base frame includes a stopper portion that comes into contact with an outer edge of the optical disc having reached the position of a spindle motor and that restricts backward movement of the optical disc. A switch arm includes a contact portion located on a side opposite to the stopper portion across the optical disc having reached the position of the spindle motor, and the switch arm uses the contact portion to push the optical disc toward the stopper portion.