Disk tray of optic disk drive having pressure balance device

Details Disk tray of optic disk drive having pressure balance device Disk tray of optic disk drive having pressure balance device

1999-11-23

2001-11-13

Ometz, David L. (Department: 2652)

Dynamic information storage or retrieval

With particular cabinet structure

Slotted for edgewise insertion of storage disc

Reexamination Certificate

active

06317402

ABSTRACT:

FIELD OF THE INVENTION
The present invention generally relates to a disk tray of an optic disk drive, and in particular to a disk tray of an optic disk drive having a pressure balance device for reducing vibration of the disk caused by pressure difference induced by high speed rotation of the optic disk.
BACKGROUND OF THE INVENTION
Optic disk drives are commonly used as standard peripheral devices of personal computers. The operation speed of the optic disk drives has been and is being improved to such an extent that a pressure difference is induced during the operation of the disk drive which causes vibration of the optic disk leading to mistaken access of data stored in the disk.
Thus, it is desired to have a disk tray of an optic disk drive that alleviates or even eliminates the vibration caused by pressure difference induced during the operation of the optic disk drive.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a device for alleviating the vibration of an optic disk during the operation of an optic disk drive.
Another object of the present invention is to provide a disk tray of an optic disk drive which overcomes the disk vibration caused by pressure difference induced by high speed rotation of the optic disk during operation of the optic disk drive.
A further object of the present invention is to provide a disk tray of an optic disk drive which allows pressure difference between upper and lower sides thereof to be balanced without addition of sophisticated devices anchor modification of the general structure of the disk tray.
To achieve the above objects, in accordance with the present invention, there is provided a disk tray adapted to be arranged in an optic disk drive for supporting an optic disk. The disk tray forms a circular recess for receiving the optic disk therein. Openings are defined in the disk tray along a circumference of the circular recess for forming air passages communicating upper and lower sides of the disk tray whereby when the optic disk is rotated at a high speed during the operation of the optic disk drive, pressure difference induced between the upper and lower sides of the disk tray is reduced by air flowing through the air passages.


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