JPS62143276A - Disk cleaner mechanism - Google Patents

Abstract

PURPOSE:To attain long service life and to prevent generation of friction resistance at the normal state by providing a cleaner in parallel with the moving direction of an optical head at a part wider than a recording/reproducing area of a medium, contacting the cleaner onto the recording medium as required by a drive means so as to apply cleaning thereby preventing flaw onto the surface of the recording medium. CONSTITUTION:A high density recording medium 1 is engaged with a medium drive spindle 5 and fixed by a hub 6. Then the spindle 5 is driven and the medium is turned in the direction of arrow 6. Then the cleaner 3 is driven by a driver 4, the cleaning member 8 contacts the surface of the medium 1 to apply cleaning. The size of the cleaner cleaning area 12 of the cleaning member 8 is decided to clean a wider part than the recording/reproducing area 13. Thus, the time when the medium and the cleaner are in contact is short and the medium and the cleaner are not contacted in a normal state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a disk cleaner mechanism, and more particularly to a disk cleaner mechanism in a high-density recording and reproducing apparatus for optical disks, digital audio disks, and the like.

[Background of the invention]

For example, in a high-density recording/reproducing device such as an optical disc, if there is dust or deposits on the disc surface, errors such as signal loss or write failure may occur. Particularly during recording, it is possible that erroneous data may be written, and the consequences of this are serious.

In known optical disk devices, the optical disk medium can generally be exchanged 51 times. Therefore, dirt, dust, etc. from the outside may enter the apparatus and adhere to the surface of the disk medium.

In addition, even if the disk medium is stored in a cartridge or the like, the cartridge has a hole for engaging the internal disk with the rotating spindle of the device, and a hole for reading and writing for access. A hole is required for the head to fit, and it is difficult to seal the cartridge.

Therefore, conventionally, optical disc! ! ! In a two-position system, a method is known in which a nonwoven fabric or the like is pasted inside the case and the case is constantly brought into contact with the medium for cleaning. However, according to this method, since the optical disk medium and the cleaner are always in contact with each other, there are problems such as scratches on the surface of the medium and the life span of the cleaner, and the occurrence of stiffness resistance due to contact between the cleaner and the disk medium. There is. A known example of this type is the one described in JP-A-57-71528.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a disk cleaner mechanism that prevents scratches on the surface of a recording medium, the life of the cleaner, and the generation of frictional resistance in normal conditions.

[Summary of the invention]

In order to achieve the above object, the present invention provides a cleaner in a part wider than the recording/reproducing area of a disk recording medium and parallel to the moving direction of an optical head for recording/reproducing, and when necessary by a driving means. Cleaning is performed by only bringing the cleaner into contact with the recording medium.

[Embodiments of the invention]

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a disk cleaner that is an embodiment of the present invention. In the figure, a high-density recording medium 1 is fixed to a medium drive spindle 5 with a hub 6 and rotates. The recording/reproducing gutter 2 is mounted on a carrier 7 and moved in the direction of the arrow 7.

Further, the cleaner 3 and its driver 4 are also mounted on the carrier 7. The cleaner 3 is rotationally driven by a driver 4,
A cleaning member 8 made of a fibrous material comes into contact with the surface of the medium 1 .

Next, the operation will be explained.

Typically, a high-density recording medium (hereinafter simply referred to as the medium) 1 is engaged with a medium drive spindle (hereinafter referred to as the spindle) 5,
It is fixed with a hub 6. The spindle 5 then rotates and the medium rotates in the direction of arrow 6. After that, the cleaner 3
The cleaning member 8 comes into contact with the surface of the medium 1 and cleans the medium 1.

Here, the cleaner cleaning area 12 of the cleaning member 8 (
(see FIG. 2) is determined in size so that a wider area than the recording/reproducing area 13 of the medium 1 can be cleaned.

FIG. 3 shows the cleaner when it is not in operation. Since the driver 4 is not operating, the cleaning member 8 is not in contact with the surface of the medium 1.

FIG. 4 shows the cleaner in operation. The cleaner 3 is rotationally driven by a driver 4, and the cleaning member 8 comes into contact with the surface of the medium 1.

In the above example, the medium 1 is a single unit. However, the medium 1 is normally used in a cartridge. Even in this case, it is possible to insert the cleaning member 8 through the head access hole 10 provided in the cartridge 9 as shown in FIG.

In the above example, the cleaning member B is positioned in front of the head 2 with respect to the disk rotation direction k.

In this way, information can be read/written on the medium 1 immediately after cleaning.

On the other hand, the cleaning member 8 may be arranged on the rear side of the head 2 as shown in FIG.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the time that the medium and the cleaner are in contact is short, and in normal conditions, the medium and the cleaner are not in contact, so there is no damage to the medium.
It is possible to obtain a cleaner that has a long life and is stable, highly reliable, and has a long life without any rotational load during normal operation.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an optical disk cleaner mechanism according to an embodiment of the present invention, the second sentence is a diagram showing the positional relationship between the medium recording and reproducing area and the cleaner, and FIG. 3 is a diagram showing the cleaner in a non-operating state. Fig. 4 is a diagram showing the operating state of the cleaner, Fig. 5 is a perspective view showing the state in which the optical disc is stored in the cart 1), and Fig. 6 is a diagram showing an embodiment in which the cleaner is installed in a recessed position. . 1 is an optical disk, 2 is a recording/reproducing head, 3 is a cleaner, 4 is a driver, 5 is a medium drive spindle, 6 is a hub, 8 is a cleaning member, and 9 is a cartridge. Figure 1 Figure 2

Claims (3)

[Claims] (1) In an optical disk device having a rotatable disc-shaped disk medium and an optical head that moves in the radial direction of the disk medium and optically records and reproduces information on the disk medium, the optical head moves with the optical head. A disk cleaner mechanism comprising: a cleaning member for cleaning the surface of the disk medium; and a driving means for driving the cleaning member to contact the surface of the disk medium. (2) The disk cleaner mechanism according to item 1, wherein the cleaning member is disposed on the front side of the optical head with respect to the rotational direction of the disk medium. (3) The disk cleaner mechanism according to item 1 or 2, wherein the cleaning member includes a fibrous member.