JPS63124283A - Optical disk device - Google Patents

Abstract

PURPOSE:To prevent the contamination of a disk and an optical head by removing a dust contained in air in a case box by a dust removing filter arranged in an air flow caused by the revolution of the disk in the tightly closed case box. CONSTITUTION:A recording and reproducing mechanism is closed tightly by the case box constituted of a shield cover 10, a front cover 20 and a base plate 30, and at the outside of the periphery of the disk 1, a cylindrical dust removing filter (filter) 6, which has a larger outside diameter than that of the disk, is arranged and fixed on the base plate 30 through a stay 7. When the disk 1 is made revolve by a motor 3, the air flow in a radial direction is generated. Since the filter 6 is arranged in this air flow, the dust contained in the air is removed. Since the recording and reproducing mechanism and the filter 6 are arranged in the tightly closed case box, the dust in the case box decreases with the lapse of the operating time of the optical disk device, and the contamination of the disk 1 and the optical head 2 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical disc device for writing, reading, recording, and reproducing information on a disc-shaped optical recording medium.

[Conventional technology]

Conventional optical disk devices have a structure in which the disc-shaped optical recording medium (hereinafter referred to as a disk) for recording information can be easily replaced, so the structure is such that the disk and optical head are sealed. is difficult.

[Problem that the invention seeks to solve]

As described above, conventional optical disk devices have the drawback that dust easily enters the disk and the optical head tends to get dirty, and such dirt can cause errors in writing or reading information.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical disk device that can prevent the disk and optical head from being contaminated by dust, reduce errors in writing and reading information, and improve its reliability.

[Means for solving problems]

The optical disc device of the present invention includes an optical recording medium mounted on a turntable that is driven by a motor to perform rotational motion and fixed to the turntable by a clamp, and an optical recording medium that records or reproduces information on the optical recording medium. In an optical disc device having a recording and reproducing mechanism including a head, and a housing that houses the recording and reproducing mechanism and includes a shield cover, a front cover, and a base plate, the dust removal device is provided outside the circumference of the optical recording medium. It is configured with a filter.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
FIG. 3 is a side view showing the air flow in the illustrated embodiment.

In FIG. 1, a disk 1 is mounted on a turntable 4, fixed to the turntable 4 by a clamp 5, and is rotated by the rotation of a motor 3, while information is recorded and reproduced by an optical head 2. These recording and playback am
is sealed by a housing constituted by a shield cover 10, a front cover 20, and a base plate 1-30,
A cylindrical dust removal filter (filter) 6 having an outer diameter larger than the diameter of the disk 1 is disposed outside the circumference of the disk 1, and is fixed to the base plate 3 by a stay 7.

By configuring as described above, as shown in FIG. 2, when the disk 1 is rotated by the motor 3,
Air flow occurs in the direction of arrow A.

Since the filter 6 is disposed within this air flow, dust contained in the air is removed.

Since the recording and reproducing mechanism and the filter are arranged in a sealed housing, the dust inside the housing decreases as the optical disc device is operated, and therefore it is possible to prevent the disc 1 and the optical head 2 from becoming dirty. can.

Although the above-described embodiment is configured such that a cylindrical filter is arranged around the outer periphery of the disk, the same effect can be obtained by arranging a plate-shaped filter divided into a plurality of pieces around the outer periphery of the disk. .

〔Effect of the invention〕

As explained above, the optical disc device of the present invention removes dust in the air inside the housing by using a dust removal filter disposed in the air flow generated by the rotation of the disc inside the sealed housing. This has the effect of being able to prevent stains, and therefore provides an optical disc device with excellent reliability that prevents errors in recording and reproducing information.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
FIG. 3 is a side view showing the air flow in the illustrated embodiment. DESCRIPTION OF SYMBOLS 1... Disc, 2... Optical head, 3... Motor, 4... Turntable, 5... Clamp, 6...
... Filter, 7... Stay, 10... Shield cover, 20... Front cover, 30... Base plate. 1st Origin Z diagram

Claims (1)

[Claims] A recording and reproducing mechanism that includes an optical recording medium that is mounted on a turntable that is driven by a motor to rotate and is fixed to the turntable with a clamp, and an optical head that records or reproduces information on the optical recording medium. and a housing that houses the recording and reproducing mechanism and includes a shield cover, a front cover, and a base plate, characterized in that the optical disc device includes a dust removal filter disposed outside the circumference of the optical recording medium. optical disk device.