JPS63244462A - Information processor - Google Patents

Abstract

PURPOSE:To simultaneously attain cleaning at recording and reproduction to a foreign material stuck on the surface of an information recording medium by providing an attracting means removing the dust stuck on the surface of the information recording medium reproducing information. CONSTITUTION:The attracting nozzle 12 as an attracting means is provided oppositely to the same face as the recording and reproduction by an optical head 15 at the exposed surface of the optical disk 1. That is, the attracting nozzle 12 is connected to a fan 13 provided on a side face of a main body case 3 through a suction pipe 14 and its leading aperture is provided oppositely on the exposed surface of the optical disk 1 similarly to the optical head 15. When the presence of a foreign material is recognized on the surface of the optical disk 1, a fan driving motor is driven to operate the fan 13, then the attracting nozzle 12 attracts the exposed surface of the optical disk 1 and the foreign material is removed in a direction of the fan 13 and efficient cleaning is attained.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an improvement in an information processing device that uses, for example, an optical disk as an information storage medium. The present invention relates to an information processing device that can automatically clean foreign matter such as dust.

(Prior Art) In recent years, the amount of information such as documents has increased significantly, and various information filing devices have been developed that file (record) these documents and search for, reproduce, and retrieve desired information as needed. ing.

Among such information filing devices, optical disk devices that use optical disks as information storage media to record necessary information, and also search and reproduce the recorded information, are notable for their significantly large recording capacity. It has been widely put into practical use.

Information is recorded using this optical disk device by optically reading and scanning the surface of the document to be recorded with a laser beam, converting the black and white information on the document surface into an electrical signal (analog signal), and converting this analog signal into an electrical signal (analog signal). After performing FM modulation to create a recording signal, the recording signal is used to on-off modulate the ray beam light generated by a laser light source, and this is irradiated onto the recording layer of an optical disk rotating at a constant speed. This is done by changing the optical characteristics of the irradiated area.

To reproduce the recorded document, an optical disk is rotated at a constant speed, a beam of constant intensity is irradiated along the track on the optical disk, and the modulation state of the reflected light from the recorded part is converted into an electrical signal. This is done by reading out the information.

First, the configuration of a conventional optical disk device having the above-mentioned functions will be explained with reference to FIGS. 4 to 7.

In FIG. 4, 2 is a cassette case (cartridge) that houses a disc-shaped optical disc 1 as an information storage medium.
This is configured to be separable into 20 and 21 in order to expose the optical disc 1 within the apparatus main body 60.

As for the portion 1111 of the cassette case 2, there are two types: one that releases the radial width of the optical disc, and one that releases the entire diameter width.

Further, 60 is a main body of the apparatus, and inside thereof there are a case transport means for taking in or returning the cassette case 2 from the insertion/ejection port 61 into the main body, and a case opening/closing means for separating or joining the cassette case 2 into 20 and 21. A built-in case transport/opening/closing unit 64 is displaceably provided.

The optical disc 1 is located approximately in the center of the device main body 60.
An optical disk drive device 67 is provided, which includes a turntable 9 that clamps and rotates the disc, and a motor (spindle motor) 8 that rotates the turntable 9.

Further, in the device main body 60, a unit displacement means 68 for displacing the case transport/opening/closing unit 64 is provided in order to attach and detach the optical disc 1 to the turntable 9, and presses and fixes the optical disc 1 to the turntable 9. The clamper 11 is configured to be displaced in conjunction with the displacement operation of the case transport/opening/closing unit 64.

An optical head 3-15 is provided opposite the exposed portion of the optical disc 1 between the separated cassette cases 20 and 21, and this optical head 15 slides in the radial direction of the optical disc 1 to perform recording.・Perform playback.

A detailed explanation of the case transport/opening/closing unit 64 and the unit displacement means 68 will be omitted, but the former has a support shaft 86,
Bearing 87, feed rollers 88, 90, 92, shafts 89, 91, 93 of these feed rollers, pulse motor 94 that is the drive source for these shafts, timing pulley 95
, an electromagnetic clutch 96, a pinch roller shaft 111.113.115 whose both ends can be moved up and down, a leaf spring 118, a case opening rod 34, a case locking member 27, and a case detection switch 122.123.124.125, the latter being A T-shaped arm movable member 130 consisting of a vertical member 130a and a horizontal member 130b, and a movable member operating mechanism 13
1, a hook 132, an internal gear 133, a spur gear 134, a drive shaft 135, a gear arm 136, a spur gear 134, and a vertical drive motor (not shown).

The case conveyance/opening/closing unit 64 and the unit displacement means 68 are designed to interlock in one direction by the action of the support member 121 and the hook 132.

(Problems to be Solved by the Invention) However, in the optical disc device described above, the optical disc 1 is always stored in the cassette case 2, and when it is taken into the device main body 60 and placed on the turntable 9. Since the surface of the disc is exposed, for example, if foreign matter such as dust adheres to the surface during recording, playback, or storage, disassemble the cassette case 2, remove the optical disc 1, and clean it with a cloth or cotton swab. It was necessary to perform a tedious cleaning process of wiping off foreign objects.

However, disassembling the cassette case 2 that houses the optical disc 1 not only requires specialized knowledge;
Even if the foreign matter is actually wiped with a cloth, it is difficult to completely remove foreign matter from the surface of the optical disc, and there is a great possibility that the surface of the optical disc 1 will be damaged.

Another possibility is to lightly touch the back of the optical disc that is being recorded and played back in the optical disc device to remove the attached foreign matter, but this method has a high risk of damaging the optical disc. Moreover, in order to remove foreign matter adhering to the surface of the optical disk during playback/recording, it is inconvenient that the optical disk must be turned over again and cleaned.

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, it is an object of the present invention to provide an information processing apparatus equipped with a cleaning means for removing foreign matter such as dust attached to the surface of an information storage medium.

[Structure of the Invention] (Means for Solving the Problems) That is, the optical disk device of the present invention includes a processing means for reproducing information recorded on a rotatable information storage medium, and a processing means for reproducing information by the processing means. The present invention is characterized by comprising a suction means for removing dust adhering to the surface of the information storage medium on which the information storage medium is subjected.

(Function of the Invention) The information processing device of the present invention is capable of cleaning foreign matter adhering to the surface of the information storage medium by providing a suction means opposite to the surface of the information storage medium and bringing the suction means into a negative pressure state. Because of this structure, it is possible to simultaneously clean adhering foreign matter on the surface of the medium during recording and playback, which was difficult to remove in the past.This not only greatly increases the added value of information processing devices, but also improves the performance of information storage media. Since the cleaning means does not come into contact with the information storage medium, the performance of the information storage medium can be maintained well, and its durability can also be expected to be improved.

In addition, if foreign matter adheres to the information storage medium during recording or playback, there is no need to turn the information storage medium over.
Cleaning work can be carried out in that state, and the effect of removing foreign matter is extremely good.

(Description of Embodiments) Hereinafter, embodiments of the information processing apparatus of the present invention will be described in detail using the drawings.

In Fig. 1, reference numeral 1 indicates a disk-shaped optical disk as an information storage medium, which is usually housed in a cassette case (cartridge) 2 and locked in order to prevent foreign matter from adhering to it. sealed in condition.

In addition, the main body case 3 that covers the mechanical part of the optical disk device as an information processing device has a part that includes the above-mentioned cassette case 2.
It is provided with an insertion/removal port 4 and a shutter 5 for insertion/removal. This shutter 5 allows insertion of the cassette case 2,
Everything except the discharge FR is closed to prevent foreign matter such as dust from entering the main body of the device.

Reference numeral 6 denotes a base on which the mechanical part of the optical disk device is mounted, and is fixed to the main body case 3 via rubber gaskets 7 such as rubber feet in order to enhance the vibration-proofing effect.

Reference numeral 9 denotes a turntable on which the optical disc 1 is placed, crimped by a clamper 11, and rotated. Note that while the optical disc 1 is rotating, the cassette case 2 is supported by the support 10.

Further, the optical head 15 that performs recording and reproduction on the optical disc 1 is adapted to slide in the radial direction of the optical disc 1 on the exposed bottom or top surface of the optical disc 1, as shown in FIGS. 2 and 3. ing.

The illustrated optical disk device actually includes the above-described case transport/opening/closing unit, unit displacement means, optical disk drive device, optical head moving device, etc., but these are omitted in the drawing.

As shown in the figure, the optical disk device of the present invention described above has a suction means (in this embodiment, a suction nozzle 12) attached to the exposed surface of the optical disk 1 on the same surface where recording and reproduction is performed by the optical head 15. It is characterized by having the following.

That is, the suction nozzle 12 is connected to a fan 13 provided on the side surface of the main body case 3 via a suction pipe 14, and its tip opening faces the exposed surface of the optical disc 1 in the same way as the optical head 15. It is provided.

The tip position of this suction nozzle 12 only needs to be opposite to the exposed surface of the optical disc 1, similar to the optical head 15.
For example, it may be located at any arbitrary position, such as near the optical head 15, or on the top or bottom surface of the optical disc 1.

To actually operate the optical disk device of the present invention described above, first, the cassette case 2 containing the optical disk 1 is inserted through the insertion/ejection opening 4 of the main case 3.

Then, the cassette case 2 is taken into the main body of the apparatus by the action of the feed roller 98, etc., and the lock is released, and the central part or the radius part opens at an appropriate angle, and the optical disc 1 with a partially exposed surface is placed on the turntable. The cassette case 2 is placed on the support column 10.

In this state, the upper surface of the central portion of the optical disc 1 is clamped by the clamper 11, and the optical disc 1 is rotated by driving the motor 8.

Next, the optical head 15 slides onto the exposed surface of the rotating optical disc 1, thereby performing recording and reproduction.

When the presence of foreign matter is detected on the surface of the optical disc 1, a fan drive motor (not shown) is rotated,
When the fan 13 is activated, the suction nozzle 12 suctions the exposed surface of the optical disc 1, and the foreign matter is removed by the fan 1.
It is removed in three directions and efficient leaning is achieved.

Note that it is of course possible to keep the fan 13 constantly rotating during recording/reproducing of the optical disc 1 to continue recording/reproducing and cleaning operations at the same time.

In the embodiment described above, it is desirable that the suction nozzle 12 is provided together with the optical head 15, especially facing the lower surface of the optical disc 1. By configuring it in this way,
Since the bottom surface of the horizontally rotating optical disc 1 is attracted,
The removal effect is promoted by using the gravity of the foreign object itself.
More efficient leaning can be achieved.

Further, as shown in FIGS. 2 and 3, it is preferable that the tip opening of the suction nozzle 12 has an elongated hole shape whose suction width is equivalent to the radial width of the optical disc 1. As a result, the entire surface and circumference of the rotating optical disk 1 is cleaned, making it possible to completely remove attached foreign matter.

Furthermore, as shown in FIG. 2(B), the suction nozzle 12
The distance between the tip of the optical disc 1 and the surface of the optical disc 1 is
This eliminates the risk of the suction nozzle 12 damaging or abrading the surface of the optical disc 1 when the optical disc 1 comes into contact with the surface, and improves the cleaning effect. The reliability of the system is further improved.

Note that it is preferable that the fan 13 that suctions the suction nozzle 12 is equipped with a filter 16, so that foreign matter sucked by the suction nozzle 12 is adsorbed by the filter 16, and foreign matter such as dust from the outside is also absorbed by the filter 16. Since there is no possibility that the optical disk 16 will be attracted by the optical disc 16 and enter the apparatus main body, it is possible to improve the cleaning effect and to obtain the effect of protecting the optical disc 1 and the apparatus main body.

[Effects of the Invention] As described above in detail with reference to the embodiments, the information processing device of the present invention has a suction unit 12 disposed opposite to the surface of the information storage medium, and by bringing the suction unit into a negative pressure state. ,
Since the structure is configured to allow cleaning of foreign matter adhering to the surface of the information storage medium, it is possible to simultaneously clean the adhering foreign matter on the medium surface during recording and playback, which was difficult to remove in the past. Not only the added value is greatly increased, but since the cleaning means does not come into contact with the information storage medium, the performance of the information storage medium can be maintained well, and it can be expected that its durability will be improved.

In addition, if foreign matter adheres to the information storage medium during recording or playback, there is no need to turn the information storage medium over.
Cleaning work can be carried out in that state, and the effect of removing foreign matter is extremely good.

[Brief explanation of drawings]

FIG. 1 is a schematic side cross-sectional explanatory diagram of an information processing device of the present invention;
Figure 2 (A) is a schematic side sectional explanatory view of Figure 1 viewed from the direction of the arrow, Figure 2 (B) is an enlarged explanatory view of the dotted circle in Figure 2 (A), and Figure 3 is the 1 is a schematic plan view, FIG. 4 is a schematic perspective view of a conventional optical disk device, FIG. 5 is a schematic plan view showing the internal mechanism, FIG. 6 is a schematic side view of the same, and FIG. 7 is a schematic plan view of the conventional optical disk device. is a schematic front view of the same. 1... Optical disc 2... Caret case 3... Body case 4... Insertion/ejection opening 5... Shutter 6... Base 7...Rubber seal 8...Motor 9...Turntable 10...Post 11...Clamper 12...Suction Means (suction nozzle) 13...
...Fan 14...Suction pipe 15...Optical head 16...Filter

Claims (3)

[Claims] (1) Equipped with a processing means for reproducing information recorded on a rotatable information storage medium, and a suction means for removing dust attached to the surface of the information storage medium on which information is reproduced by the processing means. An information processing device characterized by: (2) The information processing device according to claim (1), wherein the processing and suction means is arranged to face the lower surface of the rotatable information storage medium. (3) The information processing device according to claim (1), wherein the suction means includes a filter.