JP2001195713A - Cleaner for disk player and method for cleaning disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaner for a disk player which is capable of surely cleaning the inside of a drive section of the disk player by coming into contact with an objective lens and a magnetic head without adversely affecting the same, is easy to handle and is highly durable. SOLUTION: This cleaner for the disk player removes dust accumulated within the disk player for reading the information recorded on an optical recording medium and magneto-optical recording medium, is formed by using an insulating material and attracts and removes the circumferential dust by electrified static electricity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaner used in a disk player for reading information recorded on an optical recording medium or a magneto-optical recording medium, such as a compact disk player or a disk drive of a computer. More particularly, the present invention relates to a cleaner used for removing dust accumulated near a drive section of the disc player.

[0002]

2. Description of the Related Art Disc players widely used for reading information recorded on optical recording media such as optical discs and magneto-optical recording media such as magneto-optical discs include:
For example, there are a compact disk player and a disk drive of a computer device. Among them, an optical disk drive (or “optical disk player”) used for reading data on an optical disk stores information stored on a disk with or without protrusions called pits.
It is detected by a reproducing device such as an optical pickup. This optical pickup focuses light from a light source on a signal surface of a compact disk or the like via an objective lens, and detects light reflected on the signal surface with a photodetector to detect the presence or absence of a pit. Since dust easily adheres to the objective lens of the optical pickup, and if the dust adheres, it is not possible to accurately detect the presence or absence of a pit. Therefore, it is necessary to maintain a cleaner state of the detection unit.

Conventionally, there has been provided an optical pickup in which a brush is provided on a disk body to remove dust adhering to an objective lens of an optical pickup, and the brush is brought into contact with the objective lens of the optical pickup for cleaning. I have.

However, in the optical disk provided with the cleaning brush as described above, the structure of the optical disk for removing dust is complicated, and replacement of the brush is troublesome because the brush is a consumable item. Further, since the brush vegetated on the disc directly contacts the objective lens, it is conceivable that the brush may adversely affect the objective lens of the optical pickup whose focus is finely adjusted.

On the other hand, in a magneto-optical disk player used for reading data on a magneto-optical disk, an optical pickup lens is used for reading recorded data, and a magnetic head is used for writing data. ing. Even if dust adheres to the magnetic head, a data recording error or the like occurs, so that the magnetic head also needs to be cleaned.

Conventionally, as cleaning of this magnetic head, a cloth made of fiber is stuck to a disk, and this is mounted on a magneto-optical disk player and rotated.
This has been done by bringing the cloth into direct contact with the magnetic head. However, the magnetic head may be adversely affected by the contact of the cloth, so it is desirable to clean the magnetic head without any contact.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its object is to contact an objective lens or a magnetic head without adversely affecting them. An object of the present invention is to provide a cleaner for a disc player which can clean the drive section of the disc player reliably and which is easy to handle and excellent in durability.

[0008]

SUMMARY OF THE INVENTION The present invention is a cleaner for a disc player which collects dust by utilizing static electricity and cleans the inside of the drive section of the disc player. As a result, a disk player cleaner capable of cleaning the inside of the drive unit of the disk player while preventing contact with the objective lens and the magnetic head of the optical pickup is realized.

That is, a cleaner for a disk player according to the present invention is a cleaner for removing dust accumulated inside a disk player for reading information recorded on an optical recording medium or a magneto-optical recording medium. Is formed using an insulating material, and is characterized by absorbing and removing surrounding dust by charged static electricity.

According to this cleaner, a method for removing dust accumulated in a disk player for reading information recorded on an optical recording medium or a magneto-optical recording medium is formed in a plate shape using an insulating material. The cleaning method of the present invention realizes a method of cleaning a disc player, in which static electricity is charged to the cleaner, and dust in the disc player is absorbed and removed by the charged cleaner. In order to charge a cleaner formed using an insulating material with static electricity, for example, the cleaner can be rubbed with an insulating member made of another insulating material.

The above-mentioned cleaner is standardized using an insulating material, such as a digital video disk (DVD), a compact disk (CD), a writable compact disk (CD-R) or a mini disk (MD). It is desirable to form the optical disk in the same shape and size as those of various commercially available optical disks. For example, when used in a compact disc player, a standardized compact disc (hereinafter referred to as "CD") is used.
It can be formed in the same annular shape and size as described above. By forming the cleaner in this way, it is used in the same manner as a commercially available optical disk or magneto-optical disk by installing or inserting it into the drive unit of each disk player and removing dust inside the disk player. be able to. In other words, when the cleaner is mounted on a disk drive of an electronic computer or a reproducing unit of an audio device, the cleaner can absorb surrounding dust by the charged static electricity and clean the inside of the disk player. Naturally, the cleaner that has adsorbed the dust by the static electricity is thereafter taken out, and the attached dust is removed.

This cleaner can be formed entirely of an insulating material, or a part thereof, for example, an inner peripheral side and / or an outer peripheral side can be formed of a conductive material. It can also be formed using a material. For example, when formed in an annular shape similar to a CD, and a part thereof is formed using a material having a higher insulating rate than the surroundings, if a portion formed of a material having a higher insulating rate is used as a grip portion, other parts can be formed. It is possible to prevent the static electricity charged in the part from escaping. Thus, even when the cleaner is inserted into, for example, a drive unit of a disk player, the charged state of static electricity can be maintained. Here, as the insulating material, for example, a resin material, glass, a ceramic material, or the like can be used. In addition, a material to which static electricity is charged and to which an antistatic agent is added to such an extent that the charged static electricity can be maintained is used. be able to. The reason why such an antistatic agent is allowed to be added is that there is a fear that it may be necessary to add the antistatic agent due to a demand for avoiding the attachment of dust during manufacturing. For example, polycarbonate as an insulating material,
A composition comprising a release agent and a heat stabilizer can be used. Further, within the scope not departing from the gist of the present invention, as an antistatic material that can be added from a request in a manufacturing process,
Widely used antistatic materials such as distearylhydroxylamine, triphenylamine, tri-n-octylphosphine oxide, triphenylphosphine oxide, pyridine N-oxide and ethoxylated sorbitan monolaurate can be used.

The insulating material is formed using a transparent material, for example, a transparent resin material such as polycarbonate.
Further, it may be configured to include a reflective metal film phase capable of storing information such as music, image data, and various programs.
In this case, for example, if music data is stored in the reflective metal film phase, it is possible to clean the inside of the player while playing back music or audio or video such as precautions for use when cleaning the audio equipment.

The above-mentioned disk-shaped or annular-shaped cleaner is appropriately housed in a housing to provide a cleaner for a disc player in another embodiment. That is, a normal mini disc (hereinafter, “MD”)
The storage medium provided as an example) accommodates an optical disk having a diameter of about 64 mm in a housing of a standardized size provided with a shutter. Therefore, the present invention also provides a disc player cleaner formed in the same size and shape as these standardized MDs so that it can be used in such MD players. That is, the cleaner is a cleaner in which a substantially disk-shaped or annularly-shaped cleaner (hereinafter, referred to as a “disk”) is accommodated in a housing of a standardized size provided with a shutter. However, in this case, since the disk is housed in the housing, it is difficult to charge static electricity as it is. Therefore, in the present invention, it is preferable that the disk is detachably formed, or that the disk is formed in a housing so that the disk is charged with static electricity. When the disk is detachable, for example, the housing can be formed so as to be disassembled. As a structure in which the disk is charged in the housing, for example, an insulator may be provided in contact with the disk in the housing and the disk may be gradually charged with static electricity as the disk rotates. That is, both the disk and the insulator are formed using an insulating material, and the disk is charged with static electricity by rubbing the two. Also in this case, if information such as music is stored in the disc, the cleaning process can be performed simultaneously with the reproduction of the audio and video. As described above, in a disk player cleaner in which a disk made of an insulating material is housed in a housing and an insulator is provided in the housing so as to come into contact with the disk, static electricity is gradually charged as the disk rotates. Will be done. Therefore, in this case, the rotation speed or time of the disk can be adjusted in advance by the storage amount of information or the like. That is, the contact time (that is, reproduction time) between the disk and the insulating material can be adjusted by the stored information amount of music or the like, and the charge amount of the disk can be adjusted.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a disc player cleaner according to the present invention will be described with reference to the drawings. Embodiment 1 FIG. 1 is a schematic perspective view showing one embodiment of a disc player cleaner according to the present invention.

The cleaner 4 for a disc player shown in FIG. 1 is formed using a resin composition 1 containing no antistatic agent as an insulating material. As such a resin composition, it is necessary to select and use at least a resin capable of charging static electricity. In the present embodiment, for example, a composition comprising polycarbonate, a release agent, and a heat stabilizer is used. You. That is, the cleaner of the present invention is different from the conventionally provided compact disc in that the cleaner is intentionally formed so as to be able to charge static electricity.

The cleaner 4 is formed in the same size and shape as a CD conventionally provided for music / image reproduction or computer program storage, and stores various information such as music data on its surface. A reflective metal thin-film phase 2 is provided for the purpose. The reflective metal thin film phase 2 has a front surface 3 appropriately coated with a protective film, and a rear surface thereof is exposed through the transparent resin material 1 (ie, polycarbonate).

The cleaner 4 includes an apparatus as shown in FIG. 1, that is, an apparatus 7 including a table 5 having a planar shape on which the cleaner can be mounted and an insulating pad 6 rotating on the table 5. For example, static electricity can be charged by using the method described above. The method of charging the cleaner 4 with static electricity can also be performed by directly rubbing the cleaner with a sheet made of an insulating material such as cloth or vinyl without using such a device 7. . In this cleaner, a portion of the cleaner that rubs an insulator such as an insulating pad or a sheet member is, in principle, an insulating resin material 1
However, when the surface of the cleaner is also coated with an insulating resin material, this surface can be rubbed with an insulator. Considering that the signal surface detected by the optical pickup appears on the back surface of the cleaner, it is desirable to coat the surface of the cleaner with an insulating resin material and rub this surface with an insulator.

The cleaner 4 formed as described above includes:
The static electricity can be charged by rubbing with the insulating pad 6 or an insulator such as a sheet body. The electrostatically charged cleaner is mounted on a drive unit of an audio device such as a CD player, or a CD drive of an electronic computer, and operates in the same manner as a normal music or a CD in which various data are stored. Dust can be adsorbed. The cleaner that has absorbed the dust is then taken out of the disc player, and the attached dust is removed. Thus, the inside of the disc player is cleaned.

The cleaner shown in this embodiment can be used for a digital video disk (DVD) player by changing its size. In this case, the cleaner formed is usually a commercially available D
It is desirable to be formed in the same standard as VD. Embodiment 2 The disc player cleaner 10 shown in FIG. 2 is used particularly for a standardized mini disc recording and / or reproducing machine.

The cleaner 10 shown in this figure is an annular cleaner 11 having a shape as shown in the first embodiment.
(Hereinafter referred to as "disc") is formed in accordance with the mini-disc standard (ie, 64 mm in diameter),
It is housed in a standardized housing 12 having a size of -0.4) mm, a width of 68 (+6, -0) mm, and a thickness of 5 (± 0.2) mm. The casing 12 can be formed so as to be disassembled, and the disk 11 can be formed so as to directly rub against an insulator such as an insulating pad or an insulating sheet body. An insulator 13 in contact with the disk 11 is arranged in the disk 12, and is formed so that the disk 11 rotates and contacts the insulator 13 to charge static electricity. As such an insulator, for example, a brush or a pad formed using a resin can be used.

Therefore, if the cleaner 10 shown in this embodiment is used in the same manner as a standardized MD medium which is usually commercially available, the disk 11 rotates, and thus the static electricity is charged by the rotation of the disk 11, whereby the surrounding dust is removed. Can be adsorbed. After the disk 11 has absorbed dust,
The cleaner 10 is taken out, whereby the inside of the MD player is cleaned. Cleaner 10
The dust adhering to the disk 11 is then separated from the disk 11 as the charged static electricity decreases, and the dust
Accumulate in It is desirable to treat the dust accumulated in the housing 12 so as not to adhere to the disk 11 again. Therefore, in the present invention, a plurality of openings (not shown) may be formed in the housing, or an adhesive surface may be formed on the inner surface of the housing 12 so that dust detached from the disk is bonded. it can. When a plurality of openings are formed in the housing 12 or when the housing 12 itself is formed of a mesh, the suction of dust in the MD player can be prevented even in a wide range (that is, a portion other than the shutter). Can do
Cleaning can be performed more efficiently.

As another application example, the cleaner shown in this embodiment can be used for a player of a magneto-optical recording medium generally provided as a magneto-optical disk (MO). In other words, a disk having a disk shape of 88.9 mm (3.5 inches) in diameter is 90 (+0, -0.4) m long.
m, 94 (± 0.3) mm wide and 6 (± 0.2) mm thick. The cleaner thus formed is mounted in a player (or drive) by the same operation as that of a commercially available MO, and is capable of adsorbing dust adhering to an optical pickup lens, a magnetic head, or the like due to charged static electricity. it can. The cleaner that has adsorbed the dust is then removed and the dust attached to the disc is removed.

[0024]

According to the present invention, as described above, dust is adsorbed by static electricity. Therefore, even when cleaning the disk player, the cleaner contacts the objective lens or the magnetic head in the optical pickup system. There is no. Therefore, a cleaner for a disk player that can easily clean the inside of the drive unit of the disk player without coming into contact with the objective lens or the magnetic head and adversely affecting them, and that is easy to handle and has excellent durability. Is realized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a disc player cleaner of the present invention.

FIG. 2 is a perspective view showing another embodiment of the disc player cleaner of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 insulating material 2 reflective metal thin film phase 3 protective film 4 cleaner 6 insulating pad 10 cleaner 11 disk 13 insulating pad

Claims (6)

[Claims] 1. A cleaner for removing dust accumulated inside a disk player for reading information recorded on an optical recording medium or a magneto-optical recording medium, wherein the cleaner is formed into a plate shape using an insulating material. A cleaner for a disc player, which is formed and adsorbs and removes surrounding dust by charged static electricity. 2. The cleaner according to claim 1, wherein the cleaner is formed using a resin material, and the whole or a part thereof is formed using a resin material containing no antistatic agent. 3. The cleaner according to claim 1, wherein the cleaner is formed in a disc shape or an annular shape using a transparent resin material, and includes a reflective metal film phase capable of storing information. 4. The cleaner according to claim 3, wherein the disk-shaped or annular cleaner is accommodated in a housing, and an insulator that contacts the cleaner is provided inside the housing. cleaner. 5. A method for removing dust accumulated in a disk player for reading information recorded on an optical recording medium or a magneto-optical recording medium, the cleaner being formed in a plate shape using an insulating material. A method for cleaning a disc player, comprising: charging static electricity to a disc player; and adsorbing and removing dust in the disc player by the charged cleaner. 6. The cleaning method according to claim 5, wherein the cleaner formed using the insulating material is charged with static electricity by rubbing against an insulating member made of another insulating material.