JPH01312792A - Dust removing device for disk - Google Patents

Abstract

PURPOSE:To obtain a dust removing device for disk which can effectively removing dust by providing a destaticization part which functions to eliminate the charge of electrification and an air suction part which sucks dust adhering to the surface of a disk from a suction opening part to remove it. CONSTITUTION:An opening part 10a is formed near a turn table 12 on a pedestal 10 and a lower dust removal part 33 protrudes from the lower surface side of the pedestal 10 to the upper surface side thereof through said opening part 10a. The lower dust removal part 33 is constituted of an ionization action part 34 which forms the destaticization part and the air suction part 35 which sucks air. An air suction port part 35a is provided in the air suction part 35 and a pair of rollers 35b is installed on opposed side parts putting the air suction port part 35a between them. As to the surface of the disk which is made to rotate by a disk holding rotating part, the charge of electrification is eliminated by the destaticization part and the dust is sucked to be removed by the air suction part. Thus, the dust adhering to the surface of the disk can be very effectively removed.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem F. Effect G. Embodiment G-1 Overall configuration (Fig. 1) G-2 Dust removal operation (Figures 1 to 4) G-3 Operation after dust removal G-4 Modification H Effect of the invention A Industrial field of application The present invention removes dust attached to the surface of a disk as an information recording medium. Remove it from the disk surface? ? f? ＞Relating to a disk dust removal device that aims to achieve

B. Summary of the Invention The present invention provides a disk dust removal device that cleans the disk surface by removing dust attached to the surface of the disk as an information recording medium such as an optical disk. By doing so, the static electricity is removed by removing the static charge on the surface of the disk, and the dust adhering to the surface of the disk is suctioned and removed from the suction opening arranged opposite to the surface of the disk. After a relatively small-scale configuration, there is no risk of In scratches on the surface of the disk or deformation of the disk, etc.
This makes it possible to efficiently clean the disk surface.

C. Conventional technology Disks used as information recording media, such as optical disks and magneto-optical disks, are those that are installed in a disk player without a case or cartridge, and those that are protected by an opening that can be opened and closed. There are various types of disk drives, such as those that are housed in a case or cartridge, and those that are attached to a disc player while in the protective case or cartridge. These discs are
Normally, it has a central hole and the information recording area extends around the central hole, but the part that includes the information recording area is often made of a material that is easily charged, such as synthetic resin. Not only in devices that are handled alone, but also in devices that are housed in protective cases or cartridges, dust and dust gradually become attached to the surface of the information recording area.

For example, when a disc is used for information reproduction with dust or dirt attached to the surface of its information recording area,
Inconveniences may occur, such as significant noise components being mixed into the information read from the disk, and furthermore, information reading from the disk may not be performed properly.

Therefore, in order to avoid such inconveniences, it is desirable to clean the disk by removing dust attached to the surface of at least the portion of the disk that includes the information recording area at an appropriate time. Dust adhering to the surface of such a disk is generally removed by wiping the surface of the disk with a flexible brush or cloth, or by blowing a gas such as air onto the surface of the disk. .

D Problems to be Solved by the Invention However, as mentioned above, when cleaning the disk, when the surface of the disk is wiped with a flexible brush or cloth, the surface of the disk is cleaned of dust, etc. attached to it. There is a risk of damage due to being moved by brushes, cloth, etc., and if gas such as air is to be blown onto the surface of the disk, relatively large-scale equipment is required for this purpose. is required, and the surface of the disk from which dust has been removed is then
There is an inconvenience that dust etc. tend to accumulate again in a relatively short period of time.

Furthermore, in the case of a disc housed in a protective case or cartridge, the opening provided in the protective case or cartridge is in an open state so that the surface of the disc is exposed to the outside of the protective case or cartridge. In this case, the surface of the disk must be wiped with a brush or cloth or sprayed with a gas such as air, and the workability of cleaning the disk is extremely poor.

In view of these points, the present invention aims to reduce the amount of dust attached to the surface of a disk as an information recording medium, not only on a disk that is handled individually, but also on a disk that is housed in a protective case or cartridge. It is an object of the present invention to provide a disk dust removal device that can efficiently remove dust without causing damage to the surface of the disk or deformation of the disk.

E Means for Solving the Problems In order to achieve the above-mentioned object, the disc dust removal device according to the present invention is equipped with a disc, and a disc holder that rotates the mounted disc at a predetermined rotational speed. A static eliminator comprising a rotating part and a disk attachment/detachment mechanism for attaching/detaching the disk to/from the disk holding/rotating part, and further having a function of removing static charges on the surface of the disk mounted on the disk holding/rotating part by the disk attaching/detaching mechanism. and a suction section that has a suction opening facing the surface of the disk mounted on the disk holding rotation section and removes dust adhering to the surface of the disk by suctioning through the suction opening. Ru.

F-effect In the disk dust removal device according to the present invention configured as described above, the static eliminator charges the surface of the disk that is attached to the disk holding/rotating section by the disk attaching/detaching mechanism section and rotated by the disk holding/rotating section. Charge removal and suction removal of dust by the suction section are performed. Therefore, the dust adhering to the surface of the disc is made easy to remove, and new dust is difficult to collect, and the dust adhering to the disc surface is suctioned and removed. There is no risk of damage to the surface of the disc or deformation of the disc, etc.
The dust adhering to the surface of the disk is efficiently removed, and the disk from which the dust adhering to the surface has been removed is placed in a state in which it is difficult for new dust to adhere to the surface of the disk. Furthermore, since the dust adhering to the surface of the disk is removed by suction, there is no need for, for example, a dust collection means to collect the dust blown off from the surface of the disk, and the overall configuration can be made relatively small. .

G Example G-1 Overall Configuration (FIG. 1) FIG. 1 shows an example of a disk dust removal device according to the present invention.

In this example, a disk holding rotating section 11 is mounted on the base 10.
is fixed, and the disc holding/rotating unit 11 has a turntable 12 on which the disc is mounted. A disk chucking mechanism 14 including a clamp member 13 for holding down a disk placed on the turntable 12 to fix it on the turntable 12 is disposed above the disk holding and rotating section 11.

In this example, the disk to be placed on the turntable 12 is an optical disk 16 housed in a cartridge 15. The optical disc 16 has a central hole 1
6a, and has an information recording area 16b extending around the central hole 16a. A cartridge 15 containing such an optical disc 16 has a rectangular opening 17 formed therein, and is also provided with a slide lid 18 for opening and closing the opening 17. The slide lid 18 can take a position in which the opening 17 is fully closed and a position in which the opening 17 is opened. A part of the information recording area 16b is exposed to the outside of the cartridge 15 through the opening 17.

The base 10 and various constituent members provided thereon are accommodated in a case 20 virtually indicated by a dashed line. A pair of opposing side walls 20a and 20 in the case 20
Guide rail members 21 and 22 are fixed to the inner surface of each of b so as to extend parallel to the upper surface of the base 10, respectively. Then, the roller 23a is attached to the guide rail member 21.
and 23b, so that the rack plate member 2 can be moved along the guide rail member 21.
4, and a rack 24R is formed at the upper end of the rack plate member 24. Further, a rack plate member 26 is disposed which engages with the guide rail member 22 with rollers 25a and 25b, thereby being able to move along the guide rail member 22, and the rack plate member 26 has an upper end thereof. A rack 26R is formed in the section.

Binion gears 28 and 29 attached to a common rotating shaft 27 are engaged with the rack 24R provided on the rack plate member 24 and the rack 26R provided on the rack plate member 26, respectively. 27 is rotated by a drive mechanism 30.

Therefore, when the rotating shaft 27 is rotated by the drive mechanism 30 and the binion gears 28 and 29 are rotated accordingly, the rack plate members 2/I and 26
They are moved simultaneously and in the same direction along guide rail members 21 and 22.

The rack plate members 24 and 26 have a top plate portion 31a.

A cartridge holding member 31 having a bottom plate part 31b and a side plate part connecting the bottom plate part 31b is sandwiched therebetween, and
It is attached via an R trade mechanism 32 so that it can be moved up and down.

In order to avoid contact with the turntable 12 when the cartridge holding member 31 is raised and lowered relative to the rack plate members 24 and 26 by the raising and lowering mechanism 32,
A large notch 31c is formed to form a U-shaped frame. Further, when the cartridge holding member 31 assumes the raised position, the end edge 31d of the cartridge holding member 31 is formed on the side wall portion 20c located between one end of each of the pair of opposing side walls 20a and 20b of the case 20. The cartridge 15 is inserted into the top plate part 31a and the bottom plate part 31b of the cartridge holding member 31 from the outside of the case 2o through the cartridge insertion opening 20d and the end edge 31d of the cartridge holding member 31. It is possible to insert it between.

The guide rail members 21 and 22 as described above, the rack plate members 24 and 261, the pinion gears 28 and 29 attached to the rotating shaft 27, the drive mechanism 30, etc., hold the cartridge 15 and are installed in the cartridge 15. This forms a disk attachment/detachment mechanism for attaching and detaching the optical disk 16 to and from the turntable 12 in the disk holding/rotating section 11.

Further, an opening 10a is formed in the base 10 at a position near the turntable 12.
A lower dust removal section 33 protrudes from the lower surface side of the base work 0 to the upper surface side through 0a.

The lower dust removal section 33 consists of an ionization/operation section 34 that forms a static elimination section and an intake section 35 that sucks air. A pair of rollers 35b are provided on opposite sides sandwiching the opening 35a. Furthermore, in the intake part 35,
An intake adjustment knob 35C is also provided. Then, in a state where the optical disc 16 housed in the cartridge 15 is mounted on the turntable 12 in the disc holding and rotating section 11, the pair of rollers 35b is brought into contact with the lower surface of the optical disc 16, and the ionizing operation section 34 is brought into contact with the lower surface of the optical disc 16.
The upper end and the air intake port 35a that enters the intake section 35 are
It faces the lower surface of the optical disc 16. on the other hand,
An upper dust removing section 36 is attached to the support plate member 39 above the opening formed in the base 10 ] Oa so as to face the lower dust removing section 33 .

The support plate member 39 is supported by a fixed plate member 42 erected on the base 10 via a drive mechanism section 41 including a motor 40 . The upper dust removal section 36 also
It consists of an ionizing operation part 37 that forms a static elimination part and an intake part 38 that sucks air.
8a, and a pair of rollers 38b are provided on opposite sides sandwiching the air intake port 38a. Furthermore, the intake portion 38 is also provided with an intake adjustment knob 38c. When the optical disc 16 housed in the cartridge 15 is mounted on the turntable 12 in the disc holding/rotating unit 11, the support plate member 39 is driven by the drive mechanism unit 4I including the motor 40 to move the fixed plate member 42 The pair of rollers 38b are brought into contact with the upper surface of the optical disc 16, and the upper end of the ionizing unit 37 and the air intake port 38a of the intake unit 38 are opposed to the upper surface of the optical disc 16. A state is assumed.

An air duct 45 is connected to the intake section 35 of the lower dust removal section 33, and an air duct 46 is connected to the intake section 38 of the upper dust removal section 36. The air duct 45 penetrates the base 10 and extends from the lower surface side of the base 10 to the lower surface side, and is integrated with the air duct 46 on the upper surface side of the base 10.
5 and 46 form a common air duct 47.

The common air duct 47 is connected to an air outlet 48 that is attached to the side wall 20e of the casing 20 opposite to the side wall 20c so as to pass through the side wall 20e. Box 2
An air intake suction device, which is not shown in FIG. 1, is connected to the air outlet 48 that protrudes toward the outer surface of the side wall portion 20e in FIG.

Note that the ionization operation section 34 in the lower dust removal section 33
A high voltage is applied to each of the ionizing operation section 37 in the upper dust removal section 36 through a conductive wire 49.

G-2 Dust removal operation (FIGS. 1 to 4) An example of the disk dust removal device according to the present invention having the above-mentioned configuration removes dust from the optical disk 16 housed in the cartridge 15. Information recording area 1
When performing dust removal to remove dust attached to the surface of the portion including 6b, first, it is determined whether each of the rack plate members 24 and 26 is located on the side wall portion 20c side of the case 2o, and It is detected whether or not the cartridge holding member 31 is in the raised position, and the rack plate members 24 and 26 are moved to the side wall portion 20C.
If the rack plate members 24 and 26 are not in the side position, the drive mechanism 30 is activated, the binion gears 28 and 29 are rotationally driven, and the rack plate members 24 and 26 take the position on the side wall portion 2Oc side. When the cartridge holding member 31 is not in the raised position, the elevating mechanism 32 is activated, whereby the cartridge holding member 31 assumes the raised position.

Then, as shown in FIG. 2, the cartridge 15 is
In the cartridge holding member 31 which is supported by the rack plate members 24 and 26 which are arranged to take a position on the side wall portion 2Oc side through the cartridge insertion opening 20d provided in the case 20, and which is arranged to take a raised position. Top plate part 31a
and the bottom plate portion 31b.

When the cartridge 15 is inserted into the cartridge holding member 3 until it reaches a predetermined holding position, the drive mechanism 30 is activated and the pinion gears 2 and 29 are driven to rotate, and the two point apexes shown in FIG. As shown by the lines, the rack plate members 24 and 26 move the guide rail members 21 and 2 along with the cartridge register 15 from a position on the side wall 2Oc side to a position on the side wall 20e side of the case 20.
2.

When the cartridge 15 reaches the set position between the turntable 12 of the disc holding rotation unit 11 and the clamp member 13 of the disc chucking mechanism 14, it is detected by a predetermined position sensor, and the detection output is Correspondingly, the elevating mechanism 32 is operated, and the cartridge holding member 31 is lowered together with the cartridge 15 from the raised position to the lowered position. At this time, at the same time as the cartridge holding member 31 is lowered, the slide 11B of the cartridge 15 held between the top plate part 31a and the bottom plate part 31b of the cartridge holding member 31 opens the opening 17 provided in the cartridge 15. It is moved to the state. Then, the opening 17 is opened.
The center hole 16a of the optical disk 16 and its surrounding portion, which faces the lower side of the cartridge 15 from above, engages with the turntable 12 of the disk holding rotation section 11 as the cartridge holding member 31 descends. be done. When the optical disc 16 is placed on the turntable 12, the cartridge holding member 31 is further lowered slightly together with the cartridge 15, and then stopped and takes the lowered position. A slight gap is formed between the placed optical disc 16 and the inner surfaces of the top plate part 15a and the bottom plate part 15b of the cartridge 15, so that the optical disc 16 is placed on the cartridge 15.
b is placed in a state in which it does not come into contact with the inner surface of each.

Furthermore, just before the cartridge holding member 31 reaches the lowered position, the side plate portion of the cartridge holding member 31 facing the side wall portion 20e comes into contact with the roller 14b attached to the tip of the movable link 14a of the disk chucking mechanism 14. the movable link 14a and press it against the side wall 20e.
Rotate.

Thereby, as shown in FIG. 3, the clamp member 13 in the disc chucking mechanism 14 is lowered toward the turntable 12, and the turntable
The central hole 16a in the optical disc 16 placed on the
The optical disc 16 is pressed toward the turntable 12 and fixed on the turntable 12 by contacting the peripheral portion of the optical disc 16 .

In this way, the optical disc 16 housed in the cartridge 15 is mounted on the turntable 12, and the optical disc 16 mounted on the turntable 12 is mounted on the turntable 12 without contacting the inner surface of the cartridge 15. It is placed in a state where it can rotate with the rotation of.

In such a state, as shown in FIG. 3, the intake air in the lower dust removing section 33 is applied to the lower surface facing downward from the opening 17 provided in the cartridge 15 in the portion of the optical disc 16 that includes the information recording area 16b. A pair of rollers 35b provided in the part 35 come into contact with this lower surface, and an air intake port part 35a provided in the intake part 35 and an ionizing operation part 34 in the lower dust removal part 33 are opposed to this lower surface. Ru. Thereafter, the drive mechanism section 41 including the motor 40 is activated, and the support plate member 39 that supports the upper dust removal section 36 is lowered, thereby causing the upper dust removal section 36 to be attached to the optical disc 12 mounted on the turntable 12. The cartridge 15 is located close to the portion facing upward from the opening 17 provided in the cartridge 15. Then, as shown in FIG. 3, ↑R'f of the optical disc 16
A pair of rollers 38b provided in the intake section 38 of the upper dust removal section 36 come into contact with the upper surface facing upward from the opening 17 provided in the cartridge 15 in the portion including the Fx recording area 16b, and The air inlet portion 38a provided in the air intake portion 38 and the ionization operation portion 37 in the upper dust removal portion 36 are arranged to face this upper surface.

On the other hand, an air suction device 50 is connected to an air outlet 48 projecting outward from the side wall 20e of the case 20, as shown in FIG. The air suction device 50 can be, for example, a so-called vacuum cleaner.

Then, the disc holding/rotating unit 11 is operated, and the optical disc 16 mounted on the turntable 12 is rotated at a predetermined rotational speed, for example, at a rotational speed of 10 rpm or less. Further, a high voltage is applied to the ionization operation section 34 in the lower dust removal section 33 and the ionization operation section 37 in the upper dust removal section 36 through the conductor wire 49, whereby each of the ionization operation sections 34 and 37 performs a discharging operation. ionizes the air in the vicinity of each of the lower and upper surfaces of the optical disk 16 in the portion including the information recording area 16b facing downward and upward from the opening 17 provided in the cartridge 15, thereby ionizing the air near the rotating optical disk 16. Charges on the optical disc 16 are removed by removing charges on the bottom and top surfaces of the portion including the information recording area 16b.

Furthermore, as described above, the air suction device 50 is activated, and the air intake section 35 and upper side of the lower dust removal section 33 are connected to the air suction device 50 through the air outlet 48 and the common air duct 47, and further through the air ducts 45 and 46, respectively. Air intake section 3 in dust removal section 36
8 is activated. As a result, dust adhering to the lower surface of the portion of the rotating optical disc 16 that faces downward from the opening 17 provided in the cartridge 15 and including the information recording area 16b is removed by the air intake section 35 that is in the activated state.
The air is sucked and removed through the air suction port 35a, and the activated air suction portion 38 causes the portion of the rotating optical disc 16 including the information recording area 16b facing upward from the opening 17 provided in the cartridge 15 to be removed. Dust adhering to the upper surface is removed by suction through the air suction ports 3 and 8a.

In this suction removal of dust from the lower and upper surfaces of the portion of the optical disc 16 that includes the information recording area 16b, the lower and upper surfaces are subjected to charge removal by the ionizing units 34 and 37, respectively, and the dust attached thereto is removed. Since the dust is removed easily and new dust is difficult to attach, it is extremely efficient and can be completed within two rotations of the optical disc 16, and furthermore, the dust removal is The optical disc 16 that has undergone this process is placed in a state where new dust is difficult to adhere to its surface.

Furthermore, when the air intake section 35 in the lower dust removal section 33 and the air intake section 38 in the upper dust removal section 36 are operated,
Intake adjustment knobs 35 provided in the intake sections 35 and 38, respectively
c and 38c are operated to make the intake negative pressures at the air intake port 35a and the air intake port 38a equal. In this way, the information recording area 16 of the optical disc I6
By equalizing the intake negative pressures on the lower surface side and the upper surface side of the portion including b, it is possible to avoid deformation of the optical disk 16 such as ``warping''.

Incidentally, the dust sucked and removed from the bottom and top surfaces of the portion including the information recording area 16b of the optical disc 1G is removed from the air intake section 35.
and 38 through air ducts 45 and 46, respectively, and further via a common air duct 47 and an air outlet 48 to an air suction device 50, where it is suitably treated.

G-3 excluded, I! After the dust removal from the optical disk I6 stored in the cartridge 15 is completed as described above, the operation of the air suction device 50 is stopped, and the ionization operation section in the lower dust removal section 33 is stopped. 34 and upper dust removal section 3
The high voltage is no longer applied to the ionization operation section 37 at G, and furthermore, the operation of the disk holding and rotation section 11 is stopped, and the rotation of the optical disk 16 mounted on the turntable 12 is stopped. Then, the upper dust removal section 3
6 is raised, the clamp member 13 of the disc chucking mechanism 14 is also raised, and the optical disc 16 is released from the fixed state on the turntable 12.

Subsequently, the cartridge holding member 31 is raised from the lowered position, and is brought to the raised position together with the cartridge I5. At such time, cartridge 15
A slide lid 18 provided in the cartridge 15 is moved so that the opening 17 formed in the cartridge 15 is completely closed.

When the cartridge holding member 31 is brought to the raised position together with the cartridge 15, the rank temporary members 24 and 26 are moved together with the cartridge holding member 31 from the position on the side wall portion 2Oe side to the position on the side wall portion 20c side. , a rack plate member 24 that is moved along the guide rail members 21 and 22 and takes a position on the side wall portion 20c side.
and a cartridge holding member 31 supported by 26.
, the cartridge 15 is attached to the side wall portion 2 of the case 20.
Through the cartridge insertion port 20d formed at 0c,
It is taken out of the case 20.

(, -4 Modification Example In the above example, the disk to be subjected to dust removal is an optical disk housed in a cartridge, but the disk dust removal device according to the present invention can be applied to various types of disks other than optical disks, and even In the same manner as in the above example, the present invention can also be applied to the removal of dust from a disk that is handled alone without a cartridge or case.

Effects of the Invention H As is clear from the above explanation, the disk dust removal device according to the present invention removes electrical charge from the surface of the disk as an information recording medium and removes dust while the disk is rotated. Suction removal is performed, whereby the dust adhering to the surface of the disc is made easy to remove and new dust is difficult to adhere to the surface of the disc, and the dust adhering to the surface of the disc is suctioned and removed. It turns out. Therefore, on the surface of the disk, tA
It is possible to remove dust adhering to the surface of a disc extremely efficiently without the risk of causing scratches or deformation of the disc, and what is more, it is possible to remove the dust adhering to the disc surface with a new surface. This means that it is possible to maintain a state in which dust is difficult to adhere to.

Further, since the disk dust removal device according to the present invention removes dust attached to the surface of the disk by suction, it may be equipped with a dust collection means for collecting the dust blown off from the surface of the disk. This makes it possible to make the overall configuration relatively small-scale.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing essential parts of an example of a disk dust removal device according to the present invention, FIGS. 2 and 3 are sectional views for explaining the operation of the example shown in FIG. 1, and FIG. The figure is a perspective view schematically showing the usage state of the example shown in FIG. 1. In the figure, 11 is a disc holding rotation unit, 12 is a turntable, 13 is a clamp member, 15 is a cartridge, 16 is an optical disc, 16a is a central hole, 16b is an information recording area,
20 is a case, 21 and 22 are guide rail members, 24 and 26 are temporary rack members, 28 and 29 are pinion gears, 30 is a drive mechanism, 33 is a lower dust removal section, 36 is an upper dust removal section, 34 and 37 are ionization operating parts, 35 and 38 are suction parts, 45 and 46 are air ducts, 47 is a common air duct, 48 is an air outlet, 49 is a conductor, and 50 is an air suction device.

Claims (1)

[Scope of Claims] A disk holding/rotating part on which a disk is mounted and rotating the mounted disk at a predetermined rotational speed; and a disk attaching/detaching mechanism part for attaching/detaching the disk to/from the disk holding/rotating part. , a static eliminator that functions to remove electrical charges on the surface of the disk mounted on the disk holding/rotating part by the disk mounting/detaching mechanism; and a surface of the disk mounted on the disk holding/rotating part by the disk mounting/detaching mechanism. 1. A disk dust removal device comprising: a suction section having a suction opening facing the disk, and sucking and removing dust attached to the surface of the disk through the suction opening.