JPH1145417A - Cleaning cartridge for mint disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the cleaning of a magnetic head and a pickup lens at one time and efficiently by providing cleaning members for a pickup lens and a magnetic head on a recordable and reproducable disk and by providing the cleaning member for the pickup lens at a side which is in an inner peripheral side than a recordable user area and is in an outer side than a specific diameter. SOLUTION: A cleaning member 2 for cleaning a magnetic head is provided on a surface opposite to the magnetic head B of a disk 1 and also a brush 3 being a lens cleaning member on a surface opposite to an objective lens A of the disk 1. Then, the bush 3 is provided at a side which is in an inner peripheral side than the recordable user area of the information recording and reproducing area formed on the disk 1 and is in an outer side than a specific diameter ϕ31.8 mm. Thus, the head B and the lens A can be surely cleaned without generating even a read error and without needing an excessive operation at the time of moving the magnetic head B and the objective lens A to the recordable user area 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning disk for cleaning and removing dirt, dust, shavings, and other foreign matters adhering to a magnetic head and an optical lens in an information recording / reproducing system, that is, a lens cleaning member. And a cleaning cartridge for an optical disk or a magneto-optical disk device for cleaning a magnetic head and a lens with a disk having a head cleaning member.

[0002]

2. Description of the Related Art In a conventional cleaning cartridge,
Usually used disks, for example, a disk-shaped cleaning sheet having the same shape as a magnetic disk or a magneto-optical disk are rotated to contact a magnetic head or a lens for cleaning. A coated disk or a water-absorbing disk impregnated with a cleaning liquid is used.In an optical information recording / reproducing system using laser light, various foreign substances adhering to an optical lens are projected from one side of the disk. It is known to remove dirt with a brush and keep it clean.

[0003]

However, in the conventional 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), a lens-specific cleaning disk and a head-specific cleaning disk are used. Since the disc is separate from the disc and it is necessary to clean the disc using a separate cleaning disc, the handling is complicated. It is also known to simply provide a cleaning member for the lens and the head on the disk and use the disk to uniformly clean both the lens and the head (see JP-A-3-16070). In the method of providing the members, the brush is a foreign matter on the disc for the player because of the relationship between the catalog area and the information recording / reproducing area, and there is a problem that a signal reading error or the like occurs depending on the provided position and cleaning cannot be performed. In addition, in a mini-disc capable of recording and reproduction, a lead-in area (Lead in area), a Utoc area, a (User Table of Content)
ents area) and a recordable user area (Recordable User area) are also provided in this order, and it is difficult to select the area where the brush is provided. The present invention is intended to eliminate these conventional disadvantages, and can simplify the handling operation, perform the cleaning of the magnetic head and the pickup lens uniformly and efficiently without signal reading errors, and adhere to or adhere to each object. An object of the present invention is to provide an inexpensive cleaning disk for a magneto-optical disk device that can easily clean and remove accumulated dust and maintain high performance.

[0004]

According to the present invention, there is provided a disk cleaner in which a disk having a cleaning member on a surface facing a pickup lens and a magnetic head of a disk player is rotatably housed in a case. A possible disc, which is composed of a lead-in area for inventory from the inner circumference, a Utok area where a user can write information, and a recordable user area where information can be recorded and reproduced, and a lens cleaning member for cleaning the pickup lens. Are provided on the inner peripheral side of the recordable user area of the disk and outside of φ31.8 mm.

[0005]

When a cleaning cartridge is rotated by mounting a cleaning cartridge on a magneto-optical disk device and performing a recording operation, a start position of a recordable user area for recording and reproducing information in a lead-in area on the magneto-optical disk substrate. When the lens is moved to the start position of the recordable user area, the head cleaning member on one side is run in contact with the side of the magnetic head contact surface, and dust adhered or deposited there. And the lens cleaning member on the other surface comes into contact with the surface of the objective lens, which is in a relative relationship with the disc, and can remove dirt and foreign matter, thereby cleaning one surface of the magnetic head and the objective lens. It is a disc that can always be kept clean. In other words, in a recording / playback player,
Recording without error during cleaning (recording)
By simply operating, you can clean both the pickup lens and the magnetic head.
The pickup lens can be cleaned only by performing the reproducing operation.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 4. A rotating disk 1 rotatably mounted in a case 10 has a surface for cleaning a magnetic head on one surface facing a magnetic head B. A head cleaning member 2 such as a polishing tape or a flocking is provided, and a lens cleaning member for cleaning an optical lens such as a brush 3 is disposed on a surface of the rotating disk 1 opposite to the objective lens A on the other surface side, and a magneto-optical device is provided. Although it is a cleaning cartridge for a disk device, it is φ31.8 on the inner peripheral side of the recordable user area 11 of the information recording / reproducing area formed on the substrate of the disk 1.
A brush 3 as a lens cleaning member is provided on the outer peripheral side of mm to form a cleaning disk.

In this case, the brush 3 is, in the embodiment,
The brush 3 is provided in the lead-in area 12 or the Utok area 13 on the inner peripheral side of the recordable user area 11. For example, the brush 3 has a start position of the Utok area 13 of φ35 mm or more and the Utok area 13. By disposing the brush 3 in the U-TOC area 13 by disposing the brush 3 in the recordable user area 11 on the inner circumference from the start position of the recordable user area 11 or by setting the start position of the recordable user area 11 to φ35 mm or more. There is no reading error when moving, and cleaning can be accurately performed without performing extra operations.

The rotating disk 1 is provided with a center plate 4 at the center of a disk body. The center plate 4 is concentrically or spirally formed in a Utoc area 13 formed of a groove on which optical information or a signal is recorded. Is information 11 such as the number of music pieces, the length of the music pieces, the start and end addresses, etc. of the music recorded in the recordable user area 11.
Is recorded, but the Utok area 13 is the case 10
It is provided at the position of the rotating disk exposed in the window hole 6 formed in the above.

The magnetic head cleaning member 2 is made of a non-woven fabric, nylon, rayon or the like, or a polishing sheet, for example, a sheet coated with an abrasive made of fine particles of chromium oxide, aluminum oxide, silicon oxide, or the like. Alternatively, it is stuck on one side surface of the rotating disk 1 via an adhesive so as to be larger than the sliding range of the head, but may be formed not only on the entire surface of the disk but also on a part instead of a disk-shaped sheet. If necessary, a cleaning liquid can be applied or impregnated to improve the cleaning effect. The magnetic head cleaning member 2
The thickness of the disk is preferably 0.5 mm or less, whereby good running performance can be secured without hindering the rotation of the disk.

In the lead-in area 12 of the substrate of the magneto-optical disk 1, information that the outer peripheral side of the brush attaching position is the start position of the recordable user area 11 is entered, and the lead-in area 12 and the recordable user area 1 are recorded.
The brush 3 is attached to the EUTOC area 13 or the lead-in area 12 between them, and nylon brush, carbon fiber, glass fiber, aramid fiber or the like is used alone or in combination. As the means, it is preferable to provide a groove or a hole on the substrate and fix the portion with an adhesive or an adhesive tape. The brush 3 is provided at least in part in the radial direction of the rotating disk 1 and has a flocked member with the brush tip directed in the vertical direction fixed thereto. The brush which is implanted in the direction in which the brush contacts the surface is fixed.

In FIG. 1, reference numeral 6 denotes a window hole formed on the surface of the case 10 facing the magnetic head and on the surface facing the pickup lens. Reference numeral 7 denotes a drive shaft insertion hole, and reference numeral 8 denotes a rotating disk storage.

The lead-in area 12 has pits. For example, the lead-in area 12 may be a recordable disc, a disc for a certain number of minutes, a start position of the EUTOC area 13,
At the start position of the recordable user area 11 or the like, the information of the disc 1 is written in advance. The EUTOC area 13 is a catalog area for the user, for example, a place where the number of recorded songs, the length of the song, the start and end addresses of the song, etc. are automatically written. The user area 11 is a recording / reproducing area of a portion where music or the like is actually recorded. The Utok area 13 and the recordable user area 11 have grooves formed therein. Will be recorded.

In the standard, the lead-in area 1
2 has an inner circumference of max φ29mm and an outer circumference of φ32 ± 0.2mm
The disk information is repeatedly written in this range. When the disc is mounted on the player, first, the pickup lens A reaches the lead-in area 12, reads the information there, stops as it is in the lead-in area, and then automatically moves to the U-tok area 13. And then stop. (This movement depends on the player). Next, by performing a playback or recording operation, the player moves to the recordable user area 11 and starts playback or recording. Here, the pickup lens cleaning brush 3
Is a foreign material for the player, so that it must be a portion that the pickup lens A skips in order to enable cleaning, and it is considered that the device is disposed at such a position.

As the configuration of the lead-in area 12, two types can be considered as shown in FIGS. One is that the information up to immediately before the start position of the U-Tok area 13 is recorded in pits as shown in FIG. 2, and the other is that the information up to the position of φ32 ± 0.2 mm as shown in FIG. In this case, the pit is formed as a groove up to the start position of the outer UTC area 13. In the lead-in area 12, a user's inventory information 13 is stored as user inventory information.
Is recorded. Therefore, when the recording operation is performed, if the start address of the Utok area 13 recorded in the lead-in area 12 is recognized and the operation is performed in accordance therewith, the position of the Utok area 13 can be set arbitrarily. Some of the converted players do not recognize the start address of the U-Tock area 13 recorded in the lead-in area 12, and the end address of the lead-in area 12 set in advance in the player (the lead-in area specified by the standard). 12), that is, φ32 ± 0.
There is a type that automatically moves to a position of 2 mm. In this case, if the configuration as shown in FIG.
Since 0.2 mm or less is composed of grooves, writing is also possible, and thus a cleaning disk with fewer errors can be obtained.

In the embodiment shown in FIGS. 2 and 3, there is usually a U-tok area 13 immediately outside the lead-in area 12, but the start of the U-tok area 13 is shifted to a normal position (φ
32 ± 0.2mm)
(For example, since a certain width is required for disposing the brush 3, it is preferably φ35 mm or more.) Φ32 ± 0.2 mm
If the brush 3 is provided between the position of (1) and the start position of the EUTOC area 13, the pickup lens A automatically reads the lead-in area 12 and then moves to the EUTOC area 13. During the movement, the pickup lens A can be cleaned by the brush 3. In addition, even if the player stops at the lead-in area 12, the pickup lens A moves to the start position of the recordable user area 11 by performing reproduction or recording operation, so that cleaning can be performed at that time.

In the embodiment shown in FIG. 4, the UTC area 13 is usually an area in which a user can write information. However, the contents, the number of repetitions, etc. (about 1 to 2 mm in width) are determined by standards. , Recordable user area 1
1 has been determined. Actually, the start position of the recordable user area 11 is written in the lead-in area 12. Lead-in area 1
When an attempt is made to provide a brush between the end position of No. 2 and the start position of the area 11 to the recordable user, this is usually the Utok area 13 having a width of 1 to 2 mm. However, since the brush 3 cannot be arranged with a width of about 1 to 2 mm which is too small, the start position of the recordable user area 11 is set to the outer periphery (φ35
mm or more), and a brush is provided in the U-Tock area 13 outside the start position of the U-Tock area 13, and the pickup lens A moves to the recordable user area 11 by performing a recording or playback operation. It is designed so that you can clean it when you do.

When the magnetic head B is cleaned, it is applied only to a player capable of recording and reproducing data. However, since a portion requiring a magnetic head is located on the outer peripheral side of the lead-in area 12, at least this area is required. It is sufficient if the magnetic head cleaning member 2 is provided. In the case of a reproduction-only player, the magnetic head cleaning member 2 does not function, but the pickup lens A can be cleaned by a reproduction operation. Further, in a player capable of recording and reproducing, only the pickup lens A can be cleaned by a reproducing operation.

[0018]

According to the present invention, there is provided a disk cleaner in which a disk having a cleaning member on a surface facing a pickup lens and a magnetic head of a disk player is rotatably stored in a case, wherein the disk is a recordable / reproducible disk. There is a lead-in area for inventory from the inner circumference, a Utok area where the user can write information, and a recordable user area where information can be recorded and played back.The lens cleaning member for cleaning the pickup lens is used for the disk. By being provided on the inner side of the recordable user area, both the pickup lens and the magnetic head can be cleaned by a recording / reproducing player only by performing a recording operation. Clean up the pickup lens As a result, the magnetic head and the pickup lens can be cleaned uniformly and efficiently without errors during cleaning, and a signal is sent to remove and remove dust attached or deposited on each object. It is extremely easy to perform without reading errors, can maintain high performance, and can greatly enhance the usefulness of a recording / reproducing apparatus using a magneto-optical disk.

[Brief description of the drawings]

FIG. 1 is a perspective view of a separated state showing an embodiment of the present invention.

FIG. 2 is a partially enlarged longitudinal sectional view of a disk used in the cartridge of the example of FIG.

FIG. 3 is a partially enlarged longitudinal sectional view of a disk of another embodiment used for the cartridge of FIG. 1;

FIG. 4 is a partially enlarged longitudinal sectional view of a disk of still another embodiment used in the cartridge of the example of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc 2 Cleaning member 3 Brush 4 Center plate 6 Window hole 7 Drive shaft insertion hole 8 Rotating disk accommodating part 10 Case 11 Recordable user area 12 Lead-in area 13 Utoc area A Objective lens B Magnetic head

Claims (3)

[Claims] 1. A disk cleaner in which a disk having a cleaning member on a surface facing a pickup lens and a magnetic head of a disk player is rotatably stored in a case. A lead-in area for cataloging, an EUTOK area in which a user can write information, and a recordable user area for recording and reproducing information are arranged in this order, and the lens cleaning member for cleaning the pickup lens is a recordable user area for a disc. A cleaning cartridge for a mini-disc player, wherein the cleaning cartridge is provided on the inner peripheral side and outside of φ31.8 mm. 2. The cleaning cartridge according to claim 1, wherein a start position of the U-tok area is φ35 mm or more, and a pickup lens cleaning brush is provided on an inner periphery from the U-tok area start position. 3. The cleaning cartridge according to claim 1, wherein the start position of the recordable user area is 35 mm or more, and the pickup lens cleaning brush is provided in the EUTOC area.