JPH076431A - Cleaning disk - Google Patents

Abstract

PURPOSE:To enable simultaneous cleaning of a magnetic head and an optical lens with high efficiency by forming a catalog region on the inner peripheral side of a region where a lens cleaning member is disposed and forming a reproduction-only region i.e., information recording and reproducing region, on the outer peripheral side. CONSTITUTION:Range assignment information for the reproduction-only region 13 and the information recording and reproducing region 11 is put into the catalog region 12 of the substrate of a magneto-optical disk 1. A brush 3 is stuck to the region 13 or skip area 14 between the regions 12 and 11. The surface on one surface side of the disk 1, which surfaces faces the objective lens A, is provided with the lens cleaning member and the surface on the other surface side, which surfaces faces the magnetic head B, is provided with the head cleaning member. The region 12 is formed on the inner peripheral side of the region where the lens cleaning member is arranged and the region 13 is formed on the outer peripheral side, by which the handling operation is simplified and the cleaning of the head B and the lens A is simultaneously executed. The cleaning and removing of stuck and deposited dust are easily executed without signal reading errors. This cleaning disk is usable for a reproduction-only machine as well. The effectiveness of the recording and reproducing device using the magneto- optical disk is thus greatly enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention cleans and removes dust, dust, shavings, and other foreign substances adhering to magnetic heads and optical lenses in an information recording / reproducing system, and more A cleaning disc for cleaning both, that is, a disc having a lens cleaning member and a head cleaning member, which can be used not only in a recording / reproducing device having a magnetic head and a lens but also in a reproduction-only device having only an objective lens. The present invention relates to a cleaning disk for a magnetic disk device.

[0002]

2. Description of the Related Art In a conventional cleaning cartridge,
A commonly used disc, for example, a magnetic disc or a magneto-optical disc, is rotated to bring it into contact with a magnetic head or lens for cleaning, and a magnetic head is coated with an abrasive. Disc or a water-absorptive disc impregnated with a cleaning liquid is used.In an optical information recording / reproducing system that uses laser light, various foreign substances attached to the optical lens are brushed on one side of the disc. It is known to remove dirt and keep it clean.

[0003]

However, in the cleaning disk for cleaning the objective lens and the magnetic head of the optical pickup of the recording / reproducing apparatus using the conventional magneto-optical disk (cartridge), the cleaning disk dedicated to the lens and the cleaning dedicated to the head are used. Since the disc is separate and it is necessary to perform cleaning using different cleaning discs, the handling is complicated.
It is also possible to simply provide a cleaning member for the lens and the head on the disc and use it to uniformly clean both the lens and the head. Depending on the area, a signal reading error may occur and cleaning may not be possible, only the recording / playback machine with the objective lens and magnetic head can be cleaned, and the playback-only machine with only the objective lens cannot be cleaned, resulting in inconvenience. There was a problem that it became a problem. The present invention is intended to eliminate these conventional drawbacks, simplifies the handling operation, and allows the magnetic head and the objective lens to be uniformly cleaned efficiently without a signal reading error. It can be used not only for recording / playback machines with, but also for playback machines with only objective lenses.
It is an object of the present invention to provide a general-purpose cleaning disk for a magneto-optical disk device at low cost, in which dusts attached or accumulated on each object can be cleaned and removed remarkably easily and high performance can be maintained.

[0004]

According to the present invention, a lens cleaning member for cleaning an objective lens is provided on a surface of a rotating disk facing one side of an objective lens, and the surface of the rotating disk is opposed to a magnetic head on the other side of the rotating disk. A cleaning disk having a head cleaning member for cleaning a magnetic head on a surface thereof, wherein a catalog area is formed on the disk substrate on the inner peripheral side of the lens cleaning member deployment area, and on the outer peripheral side of the lens cleaning member deployment area. The cleaning disk has a reproduction-only area and an information recording / reproducing area formed on the outer peripheral side thereof.

[0005]

When the cleaning cartridge is mounted in the magneto-optical disk device and the disk is rotated, the information indicating the start position of the recording / reproducing area is read in the catalog area on the magneto-optical disk substrate, and the head cleaning member on one side is the magnetic head. While traveling in contact with the side of the contact surface and cleaning the dust or magnetic powder that has adhered or accumulated there, the lens cleaning member on the other surface contacts the surface of the objective lens that is in a relative relationship with the disc. However, it is possible to perform cleaning to remove dirt and foreign substances, and to keep the surfaces of the magnetic head and the objective lens always clean with a single disk. An index area is formed on the inner circumference side and the outer circumference of the lens cleaning member deployment area Since there is a read-only area in and the information recording / playback area is formed on the outer circumference side, both the recording / playback machine with lens and head and the playback-only machine with lens only can be cleaned properly with one cleaning disc. it can.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the examples of FIGS. 1 to 4. One side of a rotary disk 1 rotatably mounted in a case 10 faces a magnetic head B for cleaning the magnetic head. A head cleaning member 2, for example, a polishing tape or flocked hair is provided, and a lens cleaning member for cleaning an optical lens, for example, a brush 3 is provided on the surface of the rotary disk 1 facing the objective lens A on the other surface side of the rotating disk 1 for magneto-optical Although it is a cleaning cassette for a disk device, it has an information recording / reproducing area 11 and a list area 12 (TOC; table of con
The brush 3 of the lens cleaning member is arranged in a reproduction-only area 13 other than the area (called “tents”), that is, the index area 12 is formed on the inner peripheral side of the lens cleaning member arrangement area, and the lens cleaning member arrangement area is formed. A read-only area 13 is provided on the inner and outer peripheral sides of the disk, and an information recording / reproducing area 11 is formed on the outer peripheral side of the disk to form a cleaning disk. In this case, the brush 3 is arranged between the information recording / reproducing area 11 and the catalog area 12, that is, in the reproduction-only area 13 or the skip area 14 formed inside thereof, and the head cleaning member 2 is Although it is provided only on the information recording / reproducing area 11 on the surface opposite to the surface on which the brush 3 is provided, a writable inventory area 12, a reproduction-only area 13 and / or a skip area 14 and an information recording area of the lens cleaning member attachment area. You may arrange | position over the reproduction | regeneration area | region 11.

The embodiment shown in FIG. 1 is an example in which the brush placement area is formed in a part of the reproduction-only area, that is, in order from the inner peripheral side to the outer peripheral side of the disk substrate, the catalog area 12,
A reproduction-only area 13 containing a signal of the second music and an information recording / reproducing area 11 are formed through the first music and the skip area 14, a head cleaning member 2 is provided in the information recording / reproducing area 11, and a reproduction-only area is provided on the opposite surface. The brush 3 is provided in the skip area 14 in 13 so that the first music and the second music can be reproduced. In the embodiment of FIG. 2, a skip area 14 is provided between the catalog area 12 and the reproduction-only area 13 of the disc 1, and the brush 3 is arranged in the skip area 14, so that the catalog area 12 and the information recording / reproducing area 11 are formed. A lens cleaning member is provided between the reproduction-only area 13 on the inner peripheral side.

The rotating disk 1 is provided with a center plate 4 at the center of a disk body, and information recording / reproducing is formed of tracks or pits on which optical information or signals are recorded concentrically or spirally with the center plate 4. Area 1
1. Display information for cleaning such as music and cleaning start / end display and other precautions is formed at a fixed interval. The information recording / reproducing area 11 is formed on the case 10. It is provided at the position of the rotary disk exposed in the window portion 6.

The cleaning member 2 is made of a non-woven fabric, nylon, rayon or other fiber-implanted or abrasive sheet, for example, a sheet coated with an abrasive consisting of fine particles of chromium oxide, aluminum oxide, silicon oxide or the like via an adhesive tape. Although it is attached to one side of the rotating disk 1 larger than the sliding range of the head, it can be formed not only on the entire surface of the disk but also on a part of the disk in addition to the disk-like sheet. It is also possible to improve the cleaning effect by applying or impregnating with. The cleaning member 2 preferably has a thickness of 0.5 mm or less. By doing so, information can be written on the lower surface of the cleaning member. For example, it is convenient to write information on the used cleaning area. However, it is not necessary to provide the information recording / reproducing area 11 outside the area of the cleaning member 2.

Information for designating the ranges of the reproduction-only area 13 and the information recording / reproducing area 11 is put in the list area 12 of the substrate of the magneto-optical disk 1, and the reproduction-only area between the catalog area 12 and the information recording / reproducing area 11 is reserved. The brush 3 is attached to the area 13 or the skip area 14. Nylon fiber, carbon fiber, glass fiber, aramid fiber or the like is used as the brush 3, and the attaching means is provided with grooves or holes on the substrate, It is advisable to fix it at that location with an adhesive or a double-sided adhesive tape. The brush 3 is provided in at least a part in the radial direction of the rotary disc 1 and is fixed with a flocked member having a brush tip directed in the vertical direction. In any case, the brush 3 has a surface facing the objective lens. The brush is fixed in the direction of contact with.

In the figure, numeral 6 designates a window portion which is formed on the surface of the case 10 facing the magnetic head. Reference numeral 7 is a drive shaft insertion hole, 8 is a rotary disk storage portion, and 9 is a coupling screw, which is used to integrate the upper and lower cases of the case 10.

[0012]

According to the present invention, a lens cleaning member for cleaning an objective lens is provided on one surface of a rotating disk facing the objective lens, and the magnetic head is provided on the other surface of the rotating disk facing the magnetic head. A cleaning disk provided with a head cleaning member for cleaning,
The disk substrate has a catalog area formed on the inner peripheral side of the lens cleaning member deployment area, a read-only area on the outer peripheral side of the lens cleaning member deployment area, and an information recording / reproduction area formed on the outer peripheral side. Due to
The handling operation is simplified, the magnetic head and objective lens can be cleaned uniformly and efficiently, and the dust adhering to or accumulating on each object can be cleaned and removed remarkably easily without any signal reading error. It can be used not only in a recording / playback device having a magnetic head and a magnetic head, but also in a playback-only device having only an objective lens, and can maintain high performance. Can be increased to the width.

[Brief description of drawings]

FIG. 1 is a partial enlarged cutaway side view showing an embodiment of the present invention.

FIG. 2 is an enlarged cutaway side view of a portion of another embodiment of the present invention.

FIG. 3 is a perspective view of a separated state in a cartridge using state of the example of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotating disk 2 cleaning member 3 brush 4 center plate 6 window hole 7 drive shaft insertion hole 8 rotating disk accommodating section 9 coupling screw 10 case 11 information recording / reproducing area 12 catalog area 13 reproduction only area 14 skip area A objective lens B Magnetic head

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiko Ishida 1-13-1, Nihonbashi, Chuo-ku, Tokyo TDC Corporation

Claims (4)

[Claims] 1. A head for cleaning a magnetic head is provided on a surface of a rotating disk opposite to a magnetic head, and a lens cleaning member for cleaning the objective lens is provided on a surface of the rotating disk facing the objective lens. A cleaning disk provided with a cleaning member, wherein a catalog area is formed on the disk substrate on the inner peripheral side of the lens cleaning member deployment area, and a reproduction-only area is provided on the outer peripheral side of the lens cleaning member deployment area. A cleaning disk having an information recording / reproducing area formed on the outer peripheral side. 2. The cleaning disk according to claim 1, wherein the lens cleaning member deployment area is a skip area formed in a reproduction-only area. 3. The cleaning disc according to claim 1, wherein the lens cleaning member deployment area is a skip area formed between a catalog area and a reproduction-only area. 4. The head cleaning member is arranged at least in the information recording / reproducing area on the surface opposite to the surface of the disk on which the lens cleaning member is provided.
The cleaning disk according to item 2 or 3.