JPH0561882U - Optical disc recording / reproducing apparatus - Google Patents

Abstract

(57) [Summary] [Purpose] Cleaning roller 5 of tray 3
The recording surface of the optical disc 6 is automatically cleaned to remove dust. [Structure] A cleaning roller 5 that is rotatably attached to the mounting portion 3 of the tray 2 and that is also removable may be provided, and a flange 10 may be formed at the end of the cleaning roller 5. It is configured by providing a flat portion 12 formed at 1, a disc support portion 13 provided at the flat portion 12, and a spring portion 14 for operating the disc support portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an optical disc recording / reproducing apparatus, and more particularly to an optical disc recording / reproducing apparatus suitable for cleaning a recording / reproducing surface of an optical disc.

[0002]

[Prior art]

 Conventionally, many optical disk recording / reproducing devices capable of recording / reproducing have been provided as shown in FIG. In the figure, 1 is a main body of the optical disk recording / reproducing apparatus, 2 is a tray provided in the main body 1, and the tray 2 is formed with a mounting portion 3 which is pulled out from the front surface of the main body 1 and on which an optical disc 6 is mounted. A recording / reproducing hole 4 is formed in the mounting portion 3.

When reproducing information such as music recorded on the optical disc 6 or when recording information such as new music on the optical disc 6, the optical disc 6 is mounted on the mounting portion 3 of the tray 2 2 was pulled into the inside of the main body 1, and a reproducing or recording operation was performed by an optical head (not shown) through the recording / reproducing hole 4 of the tray 2.

[0004]

[Problems to be solved by the device]

 Generally, a recording method of a recordable optical disk recording / reproducing apparatus is known to be a magneto-optical recording type, a perforating type, a phase change type or the like. In any of these cases, the recording surface of the optical disc 6 is recorded when the optical disc 6 is recorded. If dust or the like adheres to the disk, there is a problem that the laser spot from the optical head does not reach the recording layer of the optical disk 6 and recording becomes defective.

Particularly, in the write-one type optical disc recording / reproducing apparatus for the optical disc 6 which can be recorded only once, if a recording defect occurs due to the adhesion of dust or the like on the recording surface, it will be fatally hit.

For example, when the optical disc 6 is housed in a cartridge or the like and the optical disc 6 is set together with the cartridge in the optical disc recording / reproducing apparatus, dust or the like hardly adheres to the recording surface of the optical disc 6, but the optical disc 6 If the recording surface is left bare in the optical disk recording / playback device, and the cleaning work of the recording surface is neglected before setting the optical disk 6, stable recording such as defective recording due to dust adhering to the recording surface may occur. There was a drawback that I could not.

The present invention has been made in view of the above points, and the purpose thereof is to solve the drawbacks of the conventional example and to provide the cleaning roller 5 on the mounting portion 3 of the optical disk 6 of the tray 2. An optical disc recording / reproducing apparatus for automatically cleaning the optical disc 6 is provided.

[0008]

[Means for Solving the Problems]

 The optical disc recording / reproducing apparatus of the present invention is an optical disc recording / reproducing apparatus for rotating an optical disc mounted on a mounting portion of a tray to record / reproduce information, and at least one cleaning roller provided on the mounting portion and the cleaning roller. The roller is mounted so that it can rotate freely, and it also has a mounting mechanism that can be removed.

A flange may be provided at the end of the cleaning roller. Further, a flat portion formed by cutting out the circumferential portion of the surface of the cleaning roller, an arc-shaped disc support portion having the same diameter as the cleaning roller at the substantially center of the flat portion, and the disc support portion are operated. It may be configured by providing an elastic mechanism section.

[0010]

[Action]

 According to this invention, at least one cleaning roller is provided on the tray mounting portion, and the shaft portions at both ends of the cleaning roller are rotatably mounted by being locked to the locking portions of the mounting mechanism portion. Also, it can be detached from the above-mentioned claw-shaped engaging portion. Further, the outer skin of the cleaning roller is formed of an adsorbent material such as non-woven fabric or chamois, so that dust and the like attached to the optical disk rolling on the cleaning roller can be removed.

As described above, since dust and the like attached to the recording surface can be eliminated during recording on the optical disc, the recording operation on the optical disc can be stably and reliably recorded.

Further, the above-mentioned cleaning roller is provided with a flange portion, and the outer peripheral portion of the optical disc comes into contact with the flange of the cleaning roller, and the optical disc always contacts the cleaning roller at a predetermined position to clean the optical disc recording surface. can do.

Further, a flat portion is formed by cutting the surface circumferential portion of the cleaning roller according to the diameter of the outer peripheral portion of the small-sized optical disk, and an arc-shaped portion having the same diameter as the cleaning roller is formed substantially at the center of the flat portion. Provide a disk support. The disc support portion is provided with a collar portion inside the cleaning roller, and is attached to the collar portion by an elastic mechanism portion having a spring portion that is fixed in contact with the inside of the cleaning roller.

As described above, the cleaning roller provided with the flat portion and the disk supporting portion can surely clean the recording surface of the small optical disk mounted by contacting the end portion of the flat portion with the cleaning roller. Similarly, it is possible to remove dust and the like adhering to the recording surface of the small-sized optical disk, and it is possible to prevent recording defects due to the attachment of dust and the like.

[0015]

【Example】

 An embodiment of an optical disk recording / reproducing apparatus according to the present invention will be described with reference to FIGS. The same parts as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a perspective view of a main part showing a tray 2 pulled out from the main body 1, FIG. 2 is a perspective view showing a mounting part of a cleaning roller, and FIGS. 3, 4, and 5 are sectional views taken along the line AA ′ when a disc is mounted. FIG. 6 is a perspective view showing a cleaning roller of another embodiment, FIG. 7 is a side view of a cleaning roller of another embodiment of FIG. 6, and FIGS. 8 and 9 are discs of another embodiment of FIG. FIG. 9 is a cross-sectional view taken along the line AA ′ when attached.

In FIG. 1, reference numeral 5 denotes a cleaning roller provided on the mounting portion 3 of the tray 2, and at least one cleaning roller 5 is arranged, for example, three cleaning rollers 5 are arranged at substantially equal angles (about 120 degrees) in FIG. It is a thing. Reference numeral 7 denotes a mounting mechanism portion in which the shaft portion 5a of the cleaning roller 5 is rotatably mounted by locking the shaft portion 5a to the locking portion 7a, and 8 is a turntable which comes into contact with the optical disk 6. It is connected.

In the optical disc recording / reproducing apparatus configured as described above, after the optical disc 6 is mounted on the mounting portion 3 of the tray 2, the tray 2 is moved in the direction of arrow B in FIG. When the tray 2 is installed at a predetermined position, recording / reproduction of the optical disk 6 can be performed from the recording / reproducing hole 4 by an optical head (not shown) installed inside the device.

When the tray 2 is housed in the main body 1, the spindle motor 9 fixed to the turntable 8 moves in the direction of arrow C as shown in FIG. 4, and the optical disk 6 moves upward in the tray 2 as shown in FIG. The optical disk 6 is pressure-bonded to the turntable 8 by a clamper (not shown) that is lifted up and placed above the turntable 8. With the optical disk 6 floating from the tray 2, the optical disk 6 can be rotated by the spindle motor 9 to perform the rolling operation of the optical disk 6.

When the spindle motor 9 is lowered after the rolling operation of the optical disc 6, the optical disc 6 continues to rotate on the cleaning roller 5 for a certain period due to inertia. Since the outer skin member of the cleaning roller 5 is formed of a material such as non-woven fabric or chamois that easily adsorbs dust and the like, dust and the like adhering to the recording surface of the optical disk 6 can be reliably cleaned.

In this manner, dust and the like attached to the recording surface of the optical disc 6 can be completely removed, and stable recording can be performed by the optical head through the recording / reproducing hole 4 in the optical disc 6. In the cleaning operation of the optical disk 6 shown in FIG. 3, the optical disk 6 is lifted from the turntable 8 to be in a free state, and the cleaning operation is performed. However, as shown in FIG. 4, the optical disk 6 remains clamped on the turntable 8. In this state, it is also possible to slightly lower the spindle motor 9 so that the optical disk 6 and the cleaning roller 5 come into light contact with each other to perform the cleaning operation.

On the other hand, since the cleaning roller 5 is rotatably attached, the recording surface is not scratched by the cleaning operation of the optical disk 6. Further, since the cleaning roller 5 can be attached to and detached from the mounting mechanism section 7, the cleaning roller 5 can be easily replaced, so that it is possible to prevent deterioration of the dust removal capability. In this way, since the dust removal operation of dust and the like adhered to the recording surface of the optical disc 6 by the cleaning roller 5 can be automatically and reliably performed, stable recording of signals such as recorded music can be performed, and the reproduction operation can be performed. Also enables stable reproduction.

The sectional view shown in FIG. 5 shows the structure of the cleaning roller 5 of another embodiment. In the figure, 10 is a flange provided at the end of the cleaning roller 5, and this flange 10 is The optical disc 6 is positioned outside the cleaning roller 5 and comes into contact with the outer peripheral portion of the optical disc 6, so that the optical disc 6 is positioned and the optical disc 6 can be prevented from being separated from the cleaning roller 5. In this way, by providing the cleaning roller 5 with the flange 10, it is possible to more reliably clean the recording surface, and more stable dust removal performance is exerted to carry out stable and reliable recording / reproducing of signals. be able to.

6 to 9 show still another embodiment of the cleaning roller 5. In the drawings, 11 is a small optical disk having a small diameter, and 12 is a flat portion provided on the cleaning roller 5. The outer peripheral portion of the small-sized optical disk 11 is fitted into the end portion 12a of the flat portion 12 and mounted, and an arc-shaped disc support portion 13 having the same diameter as the cleaning roller 5 is provided at the substantially central portion of the flat portion 12. Has been formed. The arc-shaped portion of the disc support portion 13 projects from the mounting hole of the cleaning roller 5 to form a collar portion 13a inside the cleaning roller 5, and the spring portion 14 is locked from the collar portion 13a to the inner diameter of the cleaning roller 5. Is formed.

In the cleaning roller 5 thus configured, the center of gravity deviates from the central axis in the opposite direction to the flat portion 12 in the free state, so that the flat portion 12 always faces upward and stands still. The small optical disk 11 can be easily mounted on the flat portion 12 facing upward in this manner, and the outer peripheral portion of the small optical disk 11 contacts the end 12a of the flat portion 12 to position the small optical disk 11. Further, the disc support portion 13 of the flat portion 12 adheres against the spring force of the spring portion 14 having an upward biasing force due to the weight of the compact optical disk 11, and the disc support portion 13 moves slightly downward. To do.

In such a mounted state of the small optical disk 11, the turntable 8 fixed to the spindle motor 9 operates in the direction of arrow C as shown in FIG. 9, and the small optical disk 11 slightly moves near the upper limit of the disk supporting portion 13. The small optical disk 11 is clamped in the position where the small optical disk 11 is in contact with the spring section 14 while maintaining the spring force of the spring section.

When the spindle motor 9 is rotated while the small optical disk 11 is fixed, the cleaning roller 5 contacts the recording surface of the small optical disk 11 and rotates together with the rotation of the small optical disk 11. That is, similarly to the above, the recording surface of the small optical disk 11 can be cleaned by the cleaning roller 5 to remove dust and the like attached thereto.

When the small optical disk 11 is taken out from the mounting portion 3 of the tray 2, if the cleaning roller 5 is rotating, the small optical disk 11 is levitated from the cleaning roller 5 by the turntable 8 and the cleaning roller 5 is removed. The optical disc 11 is placed on the flat portion 12 of the cleaning roller 5 by waiting for the optical disc 11 to stop rotating, and then the small optical disc 11 is lowered again. In this state, the tray 2 is pulled out from the main body 1 and the small optical disc 11 is pulled out. You can take out 11.

As described above, the dust removal operation by the cleaning roller 5 of the present invention can clean not only the normal-sized general optical disk 6 but also the small-diameter type small-sized optical disk 11.

[0029]

[Effect of the device]

 Since the optical disc recording / reproducing apparatus according to the present invention is provided with at least one cleaning roller 5 on the mounting portion 3 of the tray 2 as described above, dust or the like attached to the recording surface is removed by the rolling operation of the optical disc 6. Therefore, there is an effect that a stable recording signal can be always recorded.

Further, since the outer surface of the cleaning roller 5 is made of a material having a good adsorbing property such as dust, and has a rotatable structure, the cleaning roller 5 has an excellent dust removing capability, and the recording on the optical disk 6 is performed. Since the cleaning roller 5 is structured so that it can be attached and detached without damaging the surface, the recording surface can be directly replaced with a new one even if the dust removal capability of the cleaning roller 5 is deteriorated. There is an effect that.

Further, there is an effect that stable recording can be performed by cleaning the recording surface of the optical disk 6 and stable recording operation as well as stable recording operation can be performed when reproducing from the optical disk 6. Further, not only the normal-sized optical disk 6 but also the small-diameter type small optical disk 11 can be cleaned similarly.

Moreover, it has excellent features such as a simple structure and easy implementation because it can be constructed at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a tray showing an embodiment of an optical disk recording / reproducing apparatus according to the present invention.

FIG. 2 is a perspective view showing a cleaning roller of the present invention.

FIG. 3 is a cross-sectional view showing a state where an optical disc is dust-removed by a cleaning roller.

FIG. 4 is a cross-sectional view showing a state where an optical disc is clamped by a turntable.

FIG. 5 is a sectional view showing another embodiment in which a flange is provided on the cleaning roller.

FIG. 6 is a perspective view showing another embodiment in which a flat portion is provided on the cleaning roller.

FIG. 7 is a side view of a cleaning roller having the flat portion.

FIG. 8 is a cross-sectional view showing a state where an optical disc is dust-removed by a cleaning roller having a flat portion.

FIG. 9 is a cross-sectional view showing a state where the optical disc is in contact with the disc supporting portion of the flat portion of the cleaning roller.

FIG. 10 is a perspective view showing a tray of a conventional optical disc recording / reproducing apparatus.

[Explanation of symbols]

 1 Main body of optical disc recording / reproducing apparatus 2 Tray 3 Optical disc mounting portion 4 Recording / reproducing hole portion 5 Cleaning roller 5a Cleaning roller shaft portion 6 Optical disc 7 Mounting mechanism portion 7a Mounting mechanism portion locking portion 8 Turntable 9 Spindle motor 10 Flange 11 Small optical disk 12 Flat part 12a End of flat part 13 Disk support 13a Collar part provided under the disk support 14 Spring part

Claims (3)

[Scope of utility model registration request] 1. An optical disc recording / reproducing apparatus for recording / reproducing information by rotating an optical disc mounted on a mounting portion of a tray, wherein at least one cleaning roller provided on the mounting portion and the cleaning roller rotate. An optical disk recording / reproducing apparatus, which is provided with an attachment mechanism portion that is freely attached and can be detached. 2. The optical disk recording / reproducing apparatus according to claim 1, wherein a flange portion is provided at an end portion of the cleaning roller. 3. A flat portion formed by cutting out a circumferential portion of the surface of the cleaning roller, an arc-shaped disc support portion having the same diameter as the cleaning roller at the approximate center of the flat portion, and the disc support portion. 3. The optical disk recording / reproducing apparatus according to claim 1, further comprising an elastic mechanism section that operates.