JPH02226571A - Cleaning device for optical disk - Google Patents

Abstract

PURPOSE:To remove the adhesive dust of a fingerprint, etc., and to prevent cleaning nonuniformity occurring by comprising a device in such a way that a cleaning tape is provided on a table via an elastic member to press the tape in the direction of an optical disk. CONSTITUTION:When a disk 31 is set, a moving table 38 is descended, and a cleaning table 61 is set at a state not abutting with the recording plane 31a of the optical disk 31. At this time, a rotary solenoid 35 is driven by turning on a switch, and an arm is rotated in a clockwise direction, and moves the table 38 upward. Then the cleaning tape 61 is abutted with the recording plane 31a of the disk 31. Next, the disk 31 is rotated by a driving motor, and also, a motor 42 is driven, and a roller 48 is driven via a bevel gear, and the tape 61 cleans up the recording plane 31a of the disk 31. The motor 42 is stopped after the lapse of prescribed time. Next, the rotary solenoid 35 is rotated in the clockwise direction, and the moving table 38 is moved downward, then, a series of operations are finished.

Description

[Detailed description of the invention] [8! E Required] Regarding optical disc cleaning devices, the purpose is to provide an optical disc cleaning device that can remove sticky stains such as fingerprints and does not cause uneven cleaning. An optical disk cleaning device comprising: a belt-shaped cleaning tape rotationally driven in the direction; a table on which the cleaning tape is placed; and a table drive device that moves the table in the direction of the optical disk. The cleaning tape is provided on the table via an elastic member that urges the cleaning tape toward the optical disk.

[Industrial application field] The present invention relates to an optical disc cleaning device.

Optical disks have been widely used in recent years as external memories with features such as large capacity, non-contact, and random access. In such optical discs, if the recording surface is dirty, it has the negative effect of causing data read/write errors, so there is a need for an optical disc cleaning device that can remove the dirt on the recording surface.

[Prior Art] Next, a conventional example will be explained using the drawings. FIG. 9 is a configuration diagram illustrating an example of a conventional optical disc cleaning device.

In the figure, 1 is an optical disc, 2 is a turntable on which the optical disc is placed, and 3 is a disc motor that drives the turntable 2 to rotate. 4 is in the radial direction (direction across the tracks) near the bottom surface, which is the recording surface of the optical disc 1.
A guide 5 provided on the guide 4 is a slider that slidably engages with the guide 4. A bearing 6 is provided on the slider 5, and a roll brush 7 that can come into contact with the recording surface of the optical disc 1 is rotatably supported on the bearing 6.

8 is a drive motor, and the output shaft of this drive motor 8 is provided with a pulley 9 and one end of a flexible joint 10. The other end of the flexible joint 10 is connected to a roll brush 7, and the roll brush 7 is rotationally driven by a drive motor.

11.12 are the first and second rotatably provided on the same axis.
The disc 13 is a third disc rotatably provided near the first and second discs 11 and 12. 14 is a first belt wrapped around the pulley 9 and the first disc 11;
A second belt 15 is wound around the second disc 12 and the third disc 13. A connecting rod 16 has one end pin-coupled to the third disc 13 and the other end pin-coupled to the slider 5. The guide 4, slider 5, third disk 13, and connecting rod 16 form a slider crank mechanism.

Next, the operation of the above configuration will be explained. First, optical disc 1
is rotated by a disk drive motor 3. Here, when the drive motor 8 is rotated, the roll brush 7 rotates while contacting the recording surface of the optical disc 1 via the flexible joint 10. Further, the driving force of the drive motor 8 is applied to the first belt, the first belt. Second disk 11.12, second
The speed is reduced through the belt 15 and transmitted to the third disc 13. As the third disc 13 rotates, the slider 5 performs reciprocating linear motion along the guide 4. The roll brush 7, which is rotating while contacting the recording surface of the rotating optical disc 1, moves along the radial direction of the optical disc 1, and the optical disc 8 is cleaned.

[Problems to be Solved by the Invention] In the conventional example with the above configuration, since the roll brush 7 is used as the cleaning member, there is a problem that it is difficult to remove sticky stains such as fingerprints. Also, if the optical disc 1 is warped, the roll brush 7
Another problem is that it cannot be brought into contact with the recording surface with a constant pressure, resulting in uneven cleaning. Furthermore, in areas where the degree of warpage is large, the roll brush 7 may not be able to contact the optical disc 1, resulting in areas that cannot be cleaned.

The present invention has been made in view of the above problems, and its purpose is to be able to remove sticky stains such as fingerprints, and to
To provide an optical disk cleaning device that does not cause uneven cleaning.

[Means for Solving the Problems] FIG. 1 is a diagram showing the principle of an optical disk cleaning device according to the present invention. In the figure, 21 is an optical disk, and 22 is a belt-shaped cleaning tape that contacts the recording surface 21a of the optical disk and is driven to rotate in the radial direction. 23 is a table on which the cleaning tape 22 is placed, 24 is a table 23
This is a table driving device that moves the optical disk in the direction of the optical disk 21.

The cleaning tape 22 is provided on the table 23 via an elastic member 25 that biases it toward the optical disk.

[Function] In the optical disc cleaning device shown in FIG. 1, the cleaning tape 22, which is rotationally driven in the radial direction of the optical disc 21 and placed on the table 23, is moved in the direction of the optical disc 21 by the table drive device 24. . The cleaning tape 22 is then pressed against the recording surface 21a of the optical disc 21 by the elastic member 25.

[Example] Next, an example of the present invention will be described using the drawings. Second
The third figure is a plan configuration diagram showing the first embodiment of the present invention.
3 is a plan configuration diagram showing the first embodiment of the present invention, FIG. 4 is a front configuration diagram in FIG. 3, and FIG. 5 is a different state from FIG. 2. 6 is a block diagram showing the second embodiment, FIG. 7 is a block diagram showing the third embodiment, and FIG. 8 is a block diagram showing the fourth embodiment.

First, a first embodiment will be explained using FIGS. 2 to 5. In these figures, 31 is an optical disk, and 32 is a cartridge that protects the optical disk 31 and has a window 32a. 33 is the base, 34 is the base 33
The bracket 35 provided above is a rotary solenoid provided on the bracket 34. An arm 37 having a roller 36 at its tip is attached to the output shaft 35a of the rotary solenoid 35.

38 is an arm 37 provided on the rotary solenoid 35
39 is a guide plate that is erected on the base 33 and guides the four corners of the movable table 38; 40 is a hole 38a that is erected on the base 33 and that is drilled in the movable table 38; This is a guide bar that is fitted into and guides the moving table 38 in the vertical direction.

A bracket 41 is provided on the moving table 38, and a motor 42 is attached to this bracket 41. Further, three supports 43 are erected on the moving table 38. A set groove 43a is provided on the upper surface of this support column 43, and a shaft 49.50 described later is provided in this groove 43a.
A spring 44 is provided to bias the optical disk 31 toward the optical disk 31 . A stopper 45 is provided with a hole 45a and is attached to the upper surface of the support column 43 using a screw 46.

A belt-shaped cleaning tape 61 is wound around two rollers 47 and 48. The rollers 47 and 48 are inserted into the holes 45a of the stopper 45 attached to the upper surface of the support column 43.
It is supported by shafts 49, 50 that push through.

A bevel gear 51 is attached to the output shaft 42a of the motor 42. A shaft 52 is rotatably supported by a bearing member 53, has a bevel gear 54 meshing with the bevel gear 51 attached to one end, and a disc 55 attached to the other end. A crank pin 56 is provided on the disc 55, and the crank pin 56 is loosely fitted into a hole 48a provided on the end face of the roller 48.

A spring 57 is provided between the base 33 and the movable table 38, and applies a biasing force to the movable table 38 in the direction of the base, thereby correcting an imbalance in the weight distribution of the movable table 38.

Next, the operation of the above configuration will be explained. First, optical disc 3
1 is set in the device of this embodiment, the moving table 3
8 is lowered and the cleaning tape 61 is attached to the optical disc 3.
It is in a state as shown in FIG. 5, in which it is not in contact with the recording surface 31a of No. 1.

Here, when a switch (not shown) is turned on, the rotary solenoid 35 is driven, the arm rotates counterclockwise in FIG. 5, and the moving table 38 is moved upward. Then, attach the cleaning tape 61 to the cartridge 3.
The recording surface 31a of the optical disc 31 is brought into contact with the recording surface 31a of the optical disc 31 through the window 32a of the second disc. At this time, as shown in FIG. 2, the cleaning tape 61 is pushed down slightly from the state shown in FIG. 5 against the biasing force of the spring 44, and is pressed against the recording surface 31a of the optical disc 31.

Next, the optical disc 31 is rotationally driven by a drive motor (not shown), the motor 42 is driven, the roller 48 is rotationally driven via the bevel gears 51 and 54, the cleaning tape 61 is rotated, and the recording surface of the optical disc 31 is rotated. 31a is cleaned.

When cleaning is performed for a predetermined period of time (by a timer set), the drive motor that rotates the optical disk 31 and the motor 4 that rotates the cleaning tape 61 are activated.
2 stops. Next, the rotary solenoid 35 rotates clockwise in FIG. 2, and the moving table 38 moves downward to return to the state shown in FIG. 5, completing the series of operations.

According to the above configuration, since the cleaning tape 61 is used, it is possible to remove sticky stains such as fingerprints, which could not be removed conventionally with a roll brush or the like. In addition, since the cleaning tape 61 is held slightly lower than the state shown in FIG. 5, it is movable in the vertical direction.
Even if the optical disc 31 is warped, the cleaning tape 6
1 can follow the warpage of the optical disc 31, and there is no uneven cleaning.

Note that the present invention is not limited to the above embodiments.

Instead of the spring 44, a leaf spring 71 may be used as shown in FIG. 6, or a sponge rubber 72 may be used as shown in FIG. Further, as shown in FIG. 8, sponge rubber layers 73 and 74 are provided on the cylindrical surfaces of the rollers 47 and 48.
may be provided.

[Effects of the Invention] As explained above, according to the present invention, the cleaning tape is provided on the table via the elastic member that biases it toward the optical disk, thereby removing adhesive stains such as fingerprints. To achieve this, it is possible to realize an optical disk cleaning device that can be used to clean an optical disk without causing uneven cleaning.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention. FIG. 2 is a plan configuration diagram showing a first embodiment of the present invention. FIG. FIG. 4 is a front configuration diagram in FIG. 3; FIG. 5 is a configuration diagram in a different state from FIG. 2; FIG. 6 is a configuration diagram showing a second embodiment; FIG. 7 is a block diagram showing the third embodiment, FIG. 8 is a block diagram showing the fourth embodiment, and FIG. 9 is a diagram illustrating an example of a conventional optical disc cleaning device. 1 to 8, 21.31 is an optical disk, 21a and 31a are recording surfaces, 22.61 is a cleaning tape, 23.38 is a table, 24 is a table drive device, 25.44, 71.72.73 .74 is an elastic member.

Claims (1)

[Claims] A belt-shaped cleaning tape (
22), and a table (22) on which the cleaning tape (22) is placed.
23); and a table drive device (24) for moving the table (23) in the direction of the optical disc (21), the cleaning device comprising: moving the cleaning tape (22) toward the optical disc (21);
1) An optical disc cleaning device characterized in that the device is provided on the table (23) via an elastic member (25) that biases it in the direction.