JPH076430A - Cleaning disk - Google Patents

Abstract

PURPOSE:To maintain a clean state by cleaning the magnetic head and optical lens of a magneto-optical disk device at once without signal reading errors. CONSTITUTION:The surface on one surface side of a rotary disk 1, which surfaces faces the magnetic head B, is provided with a head cleaning member 2 for cleaning the magnetic head; for example, a polishing tape or flocks, etc., and the surface on the other surface side of the rotary disk 1, which surfaces faces the objective lens A, is provided with a lens cleaning member for cleaning the optical lens; for example, a brush 3, by which a cleaning cartridge for the magneto-optical disk device is obtd. The brush 3 of the lens cleaning member 2 is arranged in the region exclusive of an information recordable and reproducible region 11 and catalog region 12 formed on a disk substrate 1. As a result, handling operation is facilitated and efficient cleaning of the magnetic head B and the objective lens A at once is possible. The cleaning and removing of the dust, etc., sticking or depositing on the respective objects are extremely easily executed without signal reading errors and high-performance is maintained.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art In a conventional cleaning cartridge,
A commonly used disc, for example, a disc-shaped cleaning sheet having the same shape as a magnetic disc or a magneto-optical disc is rotated and brought into contact with a magnetic head or a lens for cleaning. A coated disk or a water-absorptive disk impregnated with a cleaning liquid is used, and in an optical information recording / reproducing system using laser light, various foreign substances adhering to the optical lens are brushes projected on one side of the disk. 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 conceivable to simply use a cleaning member for the lens and head on the disc to clean both the lens and the head all at once. Due to the relationship with the area, there is a problem that a signal reading error occurs and cleaning cannot be performed. The present invention is intended to eliminate these drawbacks of the related art, simplifies the handling operation, and allows the magnetic head and the objective lens to be cleaned uniformly without any signal reading error, and can be attached to each object. It is an object of the present invention to provide a cleaning disk for a magneto-optical disk device at a low cost that can easily remove accumulated dusts and can maintain high performance.

[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 its surface, wherein the lens cleaning member is provided in an area other than an information recording / reproducing area and a catalog area formed on a disk substrate.

[0005]

When the cleaning cartridge is mounted on the magneto-optical disk device and the cleaning disk is rotated, the information which is the start position of the information recording / reproducing area is read in the catalog area on the magneto-optical disk substrate, and the head cleaning member on one side is read. It runs while contacting the side of the magnetic head contact surface,
Cleaning dust and magnetic powder that has adhered to or accumulated on this surface, and at the same time, the lens cleaning member on the other surface comes into contact with the surface of the objective lens that is in a relative relationship with the disc to remove dirt and foreign substances. Thus, the surfaces of the magnetic head and the objective lens can be always kept clean with a single disk.

[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 3. One side of a rotating 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 cartridge for a disk device, it has an information recording / reproducing area 11 and a table area 12 (TOC; table of co) formed on the substrate of the disk substrate 1.
The brush 3 of the lens cleaning member is provided between the cleaning disk and the area referred to as “ntents”. In this case, the brush 3 is arranged in the skip area 13 formed between the information recording / reproducing area 11 and the catalog area 12, and the head cleaning member 2 is a surface provided with the lens cleaning member. It is preferable to dispose over the writable inventory area 12, the skip area 13 of the lens cleaning member attaching area, and the information recording / reproducing area 11 on the opposite surface.

The rotating disc 1 is provided with a center plate 4 at the center of a disc body, and information recording / reproducing is formed of tracks or pits in 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, or a fiber-implanted or rayon-coated sheet of rayon or the like, 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.

The catalog area 12 of the substrate of the magneto-optical disk 1
The information about the start position of the information recording / reproducing area on the outer peripheral side of the brush pasting position is put in, and the brush 3 is placed in the skip area 13 between the catalog area 12 and the information recording / reproducing area 11.
As the brush 3, nylon fiber, carbon fiber, glass fiber, aramid fiber or the like is used alone or in combination, and the attaching means is to form a groove or a hole on the substrate and to attach an adhesive to the place. It is advisable to fix them with or 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.

[0011]

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,
By disposing the lens cleaning member in the area other than the information recording / reproducing area and the catalog area formed on the disk substrate, the handling operation can be simplified, and the cleaning of the magnetic head and the objective lens can be uniformly and uniformly performed. Dust adhered to or accumulated on each object can be cleaned and removed remarkably easily without signal reading errors, high performance can be maintained, and the usefulness of a recording / reproducing device using a magneto-optical disk is greatly enhanced. You can

[Brief description of drawings]

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

FIG. 2 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 indexing area 13 skip area A objective lens B magnetic head

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoichi Nakayama 1-13-1, Nihonbashi, Chuo-ku, Tokyo TDC Inc. (72) Inventor Haruo Shiba 1-1-13-1, Nihonbashi, Chuo-ku, Tokyo TDC Co., Ltd. (72) Inventor Toshihiko Ishida 1-13-1 Nihonbashi, Chuo-ku, Tokyo

Claims (3)

[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 disc provided with a cleaning member, wherein the lens cleaning member is arranged in a region other than an information recording / reproducing region and a catalog region formed on a disc substrate. 2. The lens cleaning member is a brush and is arranged in a skip area formed between an information recording / reproducing area and a catalog area of the disc.
Cleaning disc as described. 3. The cleaning disk according to claim 1, wherein the head cleaning member is arranged at least in an information recording / reproducing area on a surface opposite to a surface of the disk on which the lens cleaning member is provided.