JPH06215528A - Device for cleaning optical disk - Google Patents

Abstract

PURPOSE:To surely clean both a data area and an non-data area by forming the diameter of a clasping member in arm optical disk smaller than the hub diameter of the optical disk. CONSTITUTION:One end of a brush 2 being a cleaning member is elongated to a position in contact with a hub 1 by making the diameter of the clasping member 4 clamping the optical disk 3 smaller than the diameter of the hub 1 in the optical disk 3. Thus, a cleaned area can be extended up to not only the data area but also the non-data area. Consequently, re-sticking of dust from the non-data area is prevented, and also, holding the dust between the optical disk and the clamping member when the optical disk is clasped is prevented.

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 cleaning an optical disk.

[0002]

2. Description of the Related Art There are various recording media for recording / reproducing information using a laser beam, such as a compact disc, a write-once disc, and a magneto-optical disc. These recording media are 1 to 1.5 mm. A recording layer is provided on a substrate such as plastic or glass having a certain thickness, and information is recorded / reproduced from this substrate side.

As described above, since the substrate is generally made of a dielectric material, it is easily charged. When the substrate is charged, dust or minute dust adheres to the surface and stains the surface, and there is a problem that the laser beam is not properly incident or reflected and recording / reproduction becomes defective.

Therefore, various cleaning devices have been proposed in order to prevent such problems from occurring. For example, in FIG.
As shown in FIG. 3, there is a method of removing a deposit by using a brush or the like in the data area with the cartridge open and rotating the brush as shown in the figure (see Japanese Patent Laid-Open No. 3-49086). In the figure, 1 is a hub, 2 is a brush, 3 is an optical disk, 3-1 is a recording layer, 3-2 is a substrate, 5 is a magnet, 6 is a motor or a rotatable shaft, and 40 is a clamping member. .

[0005]

However, in the case of the above-mentioned conventional cleaning device, the area for recording / reproducing data is cleaned, but the member for clamping the optical disk and the area where the optical disk and the case contact each other when the cartridge is housed are cleaned. Not done. Therefore, dust or dirt is reattached from an area that is not cleaned even if it is once cleaned. In addition, dust is trapped between the optical disc and the clamping member during optical disc clamping, which hinders recording and reproduction.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a cleaning device capable of reliably cleaning the data area and non-data area of an optical disk.

[0007]

To solve the above problems, according to the present invention, in a cleaning device for cleaning an optical disk, a clamping member having a diameter smaller than the hub diameter of the optical disk, and at least one end portion of the cleaning member. There is provided an optical disk cleaning device comprising: a cleaning member for cleaning the optical disk while being in contact with the hub of the optical disk and rotating in the radial direction of the optical disk.

At least one end of the cleaning member is provided at a position where it contacts the hub of the optical disk, and the other end extends to a part of the optical disk in the radial direction or almost the peripheral end in the radial direction (the peripheral end of the recording area). It may be provided in a length that takes up to.

The cleaning member is preferably a static elimination brush. When the static elimination brush is limited to a part in the radial direction, it is preferable to clean the remaining recording area up to the peripheral end using a roller-shaped or belt-shaped cleaning member that wipes the optical disk surface.

The hardness, material and contact pressure of the static elimination brush, the roller-shaped or belt-shaped cleaning member can be arbitrarily selected as long as the surface of the optical disk is not scratched.
As the material of the roller-shaped or belt-shaped cleaning member, non-woven fabric, flannel, sponge or the like can be preferably applied.

[0011]

As described above, the cleaning device according to the present invention extends the one end of the cleaning member to the position where it contacts the hub by making the diameter of the clamping member of the optical disk smaller than the hub diameter of the optical disk. The area and non-data area can be cleaned,
Does not cause reattachment of dust / dust from the non-data area.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings.

Embodiment 1 FIG. 1 shows an example of the cleaning device of the present invention.
It comprises a clamping member 4 for clamping the optical disc 3 and a cleaning member 2. The optical disk 3 is clamped as shown with the shutter open. In this state, the optical disk 3 is rotated and the cleaning member 2 is rotated to perform cleaning. At this time, in order to expose a normal clamping area, the clamping member 4 of the cleaning device has a smaller diameter than the hub diameter, and the magnet 5 is used to fix the chucking portion. In the first embodiment, as the cleaning member 2, a member having a cleaning portion composed only of a static elimination brush is used. The hardness and contact pressure of this brush can be arbitrarily selected as long as the surface of the optical disc is not scratched. Further, as a method of rotating the optical disk 3 and the cleaning member 2 at the time of cleaning, it is possible to use a manual method or a motor, and to perform both rotations at the same time.

Embodiment 2 FIG. 2 shows another example of the optical disk cleaning device according to the present invention. In Embodiment 1, as a cleaning member, a roller 7 for cleaning an area substantially corresponding to the recording area of the optical disk 3 is also used. It has the same configuration except what is done. The hardness, material and contact pressure of the roller 7 can be arbitrarily selected as long as the surface of the optical disc is not scratched as in the above-mentioned example.

Embodiment 3 FIG. 3 shows still another example of the optical disk cleaning device according to the present invention, in which a take-up belt 9 for cleaning an area substantially corresponding to the recording area of the optical disk 3 is also used as a cleaning member. Other than that, the configuration is similar. The hardness, material and contact pressure of the belt 9 can be arbitrarily selected as long as the surface of the optical disc is not scratched as in the above-mentioned example, and the optical disc 3 is provided between the rollers 8 for rotating the belt 9. A jig for contacting the belt may be provided.

[0016]

As described above, according to the present invention, by making the diameter of the clamping member for clamping the optical disk smaller than the hub diameter of the optical disk, one end of the cleaning member is extended to the position where it contacts the hub, As a result, not only the data area but also the non-data area can be cleaned, and dust can be re-attached from the non-data area and dust can be caught between the optical disc and the clamping member when clamping the optical disc. It can be prevented.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing an example of an optical disk cleaning device according to the present invention.

FIG. 2 is a partial cross-sectional view showing another example of the optical disk cleaning device according to the present invention.

FIG. 3 is a partial cross-sectional view showing still another example of the optical disk cleaning device according to the present invention.

FIG. 4 is a partial cross-sectional view of a conventional optical disk cleaning device.

[Explanation of symbols]

1 Hub 2 Brush 3 Optical Disc 4, 40 Clamping Member 5 Magnet 6 Motor or Rotatable Shaft 7 Roller Cleaning Member 8 Belt Drive Roller 9 Winding Belt

Claims (3)

[Claims] 1. A cleaning device for cleaning an optical disk, wherein a clamping member having a diameter smaller than a hub diameter of the optical disk, and at least one end contacting the hub and rotating about the radial direction of the optical disk. An optical disk cleaning device comprising a cleaning member for cleaning an optical disk. 2. The optical disk cleaning device according to claim 1, wherein one end of the cleaning member is in contact with the hub of the optical disk and the other end is on the peripheral edge of the recording area of the optical disk. 3. The optical disk cleaning device according to claim 1, wherein the cleaning member is composed of at least a static elimination brush.