JPH04265588A - Cleaning device for optical disk medium - Google Patents

Abstract

PURPOSE:To automatically and completely remove the dust stuck on an optical disk medium. CONSTITUTION:When information is read and written, an optical disk medium 1 is rotated at high speed at the central part by a spindle motor 8. At the position away from the center of the medium 1, a cleanning pad 9 to contact the surface of the medium 1 by the suitable pressurizing force is interlocked with the medium 1 and rotates. The cloth stuck to the surface of the clenning pad 9 is divided into two, and disk cleanning liquid drops to one side. Then, the clenning pad 9 performs wet and dry cleaning simultaneously.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for an optical disk medium in an optical disk device that optically reads and writes information.

0002

2. Description of the Related Art Generally, optical disk devices do not have a sealed structure like hard disk devices that shield the optical disk medium, which is a recording medium, from the outside air, but have an open structure that allows airborne dust to flow into the device. It becomes. Further, the optical disk medium is made of resin or glass, and when it rotates at high speed, static electricity is generated on the medium due to friction with air, and the above-mentioned floating dust adheres to the surface of the medium. When this floating dust accumulates, errors occur when reading and writing information.

In order to prevent this, conventional optical disk devices have a structure in which a dust removal brush mechanism is built in and the brush is brought into contact with the surface of the medium to remove dust. Another method is a disk cleaning method in which a dust removal cloth is used for dry or wet cleaning.

0004

[Problems to be Solved by the Invention] However, in the conventional method described above, in the case of the former method using a brush mechanism, it is not possible to completely remove dust due to uneven planting of the brush hairs, etc. It has almost no effect on dust etc. In particular, it is impossible to remove fixed dust such as cigarette tar and toner generated from copying machines. In addition, in the latter case using a dust removal cloth, the effect of removing fixed dust increases, but in wet cleaning using a cleaning liquid containing a solvent etc., when the dust removal cloth is separated from the media surface,
Fixed dust and the like once dissolved by the cleaning liquid remain on the medium surface. In order to remove this, it is necessary to clean it again with a dry dust removal cloth, which is a troublesome work. The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an optical disk medium cleaning device that automatically and completely removes dust.

[0005]

[Means for Solving the Problems] In order to achieve this object, an optical disk medium cleaning device according to the present invention includes a disk-shaped optical disk medium and a rotational drive source that supports and rotates the center of the optical disk medium. , a cleaning pad that rotates in conjunction with the rotational drive source and has a contact surface that contacts the surface of the optical disk medium at a position away from the center of the optical disk medium, and the contact surface of the cleaning pad is divided into two. , one contact surface is impregnated with cleaning liquid.

[0006]

[Operation] The optical disk medium cleaning device according to the present invention includes a rotational drive source that supports and rotates the center of the optical disk medium and has a contact surface that contacts the surface of the optical disk medium at a position away from the center of the optical disk medium. It is equipped with a cleaning pad that rotates in conjunction with the cleaning pad, and cleans the surface of the medium as the medium rotates. Further, the contact surface of the cleaning pad is divided into two parts, and one contact surface is impregnated with a cleaning liquid, so that both wet and dry cleaning can be performed simultaneously.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below with reference to the drawings. FIG. 1 is a sectional side view of a main part of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a plan view of a cleaning pad according to the present invention, and FIG. 4 is a side view thereof. In these figures, 1 is an optical disk medium, and a hub 2 is attached to the center. hub 2
A suction metal 3 is fixed to the suction metal 3, and a center hole 3a is formed in the center of the suction metal 3. 4 is a rotating shaft of a spindle motor 8, and a spindle turntable 5 is fixed to this rotating shaft 4 and rotates integrally with the rotating shaft 4. A permanent magnet 6 is attached to the inner bottom surface of the table 5, and the metal portion 3 of the medium 1 mounted on the rotating shaft 4 is attracted to the magnet 6, and rotates integrally with the table 5. Reference numeral 7 denotes a rotating shaft integrally constructed with the rotating shaft 4, and a groove 7a is provided in the body.

Reference numeral 9 denotes a cleaning pad disposed at a position away from the rotating shaft 4 of the medium 1, and is brought into contact with the back surface of the medium 1 with an appropriate pressing force. A pad holder 10 is supported by a rotating shaft 11. The rotating shaft 11 is a bearing 1
2, and a pulley 13 is attached thereto. A belt 14 is stretched between the pulley 13 and the groove 7a of the rotating shaft 7, and a cleaning pad 9
rotates in conjunction with the medium 1.

The cleaning pad 9 is shown in FIGS. 3 and 4.
As shown in detail in , a cylindrical sponge 16 and a wiping cloth 15 attached to the top surface of this sponge 16
It consists of. The sponge 16 has a groove 16a passing through the central axis.
The cross 15 is also divided into 15a and 15b by this groove 16a. Disc cleaning liquid is dripped onto one of the cloths 15a. In addition, replace the wiping cloth 15 with the sponge 16.
The adhesive used is a material that does not change in quality due to disc cleaning liquid. Further, although a wiping cloth is used as the cloth, the present invention is not limited to this, and any soft cloth that does not damage the surface of the medium 1 may be used.

The operation will be explained below. In order to read and write information on the medium 1, the motor 8 is driven to rotate the medium 1 at high speed. Along with this rotation, the cleaning pad 9 also rotates around the rotating shaft 11. At this time,
While dissolving cigarette tar, copying machine toner, etc. stuck to the surface of the medium 1 with one of the cloths 15a onto which the disk cleaning liquid has been dripped from the cloth 15 of the pad 9,
Wet and dry cleaning are performed simultaneously by wiping off the other cloth 15b.

[0011]

As described above in detail, the optical disk medium cleaning device according to the present invention has a contact surface that contacts the surface of the optical disk medium at a position away from the center of the optical disk medium. Since the cleaning pad is provided with a cleaning pad that rotates in conjunction with a rotation drive source that supports and rotates the center, the surface of the medium can be automatically cleaned as the medium rotates. In addition, the contact surface of the cleaning pad is divided into two parts and one contact surface is impregnated with cleaning liquid, allowing both wet and dry cleaning to be performed at the same time. It is also possible to remove cigarette tar and copier toner, which are thought to be possible. As a result, it is possible to completely remove fine dust and foreign substances in the air that adhere to the optical disk medium, which adversely affect the servo system and recording/playback system of the optical disk drive. data errors can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a sectional side view of a main part of an optical disc device according to the present invention.

FIG. 2 is a plan view of essential parts of the optical disc device according to the present invention.

FIG. 3 is a plan view of a cleaning pad according to the present invention.

FIG. 4 is a side view of a cleaning pad according to the present invention.

[Explanation of symbols]

1. Optical disc media 8 Spindle motor 9 Cleaning pad 15 Wiping cloth 16 Sponge

Claims (1)

[Claims] 1. A disc-shaped optical disc medium, a rotational drive source that supports and rotates the center of the optical disc medium,
a cleaning pad that has a contact surface that contacts the surface of the optical disk medium at a position away from the center of the optical disk medium and rotates in conjunction with the rotational drive source; the contact surface of the cleaning pad is divided into two; A cleaning device for an optical disk medium, characterized in that one contact surface is impregnated with a cleaning liquid.