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Disk tray unit and disk rotational device

A technology of rotating device and rotating position, applied in the direction of poor vibration/sound insulation/absorption, recording information storage, instruments, etc., can solve the problems of poor appearance of the optical disc drive, insufficient suppression of the noise of the optical disc drive, etc., and achieve the suppression of wind roar. , the effect of reducing noise

Inactive Publication Date: 2004-12-01
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, such gates are not sufficient to suppress noise in new types of optical drives with high rotational speeds
In addition, the door is visible to the user, making the optical drive less attractive

Method used

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  • Disk tray unit and disk rotational device
  • Disk tray unit and disk rotational device
  • Disk tray unit and disk rotational device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] figure 1 is a schematic perspective view of an optical disc drive 100 as an embodiment of the disc rotating apparatus of the present invention.

[0043] The optical disc drive 100 (hereinafter abbreviated as "disc drive") moves the optical disc 10 inwardly or outwardly, and records, reproduces or deletes information on the inserted optical disc 10 . For example, the optical disc 10 is a storage medium conforming to the compact disc (CD) standard, such as CD-R (Compact Disc Recordable) and CD-RW (Compact Disc Rewritable).

[0044] The disk drive 100 has a main unit 90, a box-like frame 91 of the main unit 90, and a tray unit 81 movably connected to the frame 91, wherein the main unit 90 includes an optical head PU (such as Figure 5 shown) for recording data on the optical disc 10, and reproducing or deleting data recorded on the optica...

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PUM

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Abstract

A disk tray unit is disclosed that enables suppressing noise generated when a disk rotates. The disk tray unit includes a tray having a recessed portion for accommodating the disk and eaves for holding the disk. The front end of each eave has a smooth shape without unevenness. The eaves are formed on the peripheral wall of the recessed portion and projects toward the inner side of the recessed portion so as to face a portion of the side edge of the disk set in the recessed portion. Because the front end of the eaves has a smooth shape without unevenness, resistance of the eaves to the air stream when the disk rotates is reduced, and thus the probability of generating Karman vortices is reduced. Consequently, it is possible to suppress wind roar and reduce noise generated when the disk rotates.

Description

technical field [0001] The present invention relates to a tray unit and a disk rotation device, and more particularly, to a tray unit suitable for loading and unloading disks to and from the disk rotation device, and a disk rotation device including the tray unit. Background technique [0002] Recently, with the rapid development of multimedia technology and digital devices, the amount of information to be processed has increased dramatically, and therefore, various storage media are required to have larger and larger storage capacities. In a computer, video or audio device, an optical disc is used to store information. Examples of optical discs include CDs (Compact Discs) and DVDs (Digital Versatile Discs), which have the same size as CDs but have seven times the capacity. An optical disc drive is used to record information on an optical disc and to reproduce information on the optical disc. An optical disc drive irradiates a laser beam onto a recording surface of the dis...

Claims

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Application Information

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IPC IPC(8): G11B17/056G11B17/04G11B33/08
CPCG11B33/08G11B17/056
Inventor 並大友和
Owner RICOH KK