JPH0515190U - Optical disc recording / reproducing device - Google Patents

Abstract

(57) [Summary] [Purpose] During recording / reproduction, foreign matter is prevented from adhering to the recording surface (surface) of the optical disc, and stable recording is enabled. [Structure] Since a rotatable cleaning roller provided in the disc mounting portion is provided in contact with the optical disc surface (recording / reproducing surface), dust and the like adhering to the optical disc surface can be removed, and stable signal recording is always performed. Playback is possible. Further, this cleaning is carried out in the optical disk recording / reproducing apparatus, and the cleaning roller is detachable, so that the operation is easy and the high dustproof ability can be maintained at all times. The surface portion of this cleaning roller is a dust-absorbing member and is detachably provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an optical disk recording / reproducing apparatus, and more particularly to an optical disk recording / reproducing apparatus having an optical disk surface cleaning function.

[0002]

[Prior Art]

 The optical disc recording / reproducing apparatus has a magneto-optical type, a perforating type, a phase change type, and the like as a recording system for an optical disc. Information recorded in each system is read from the optical disc through a pickup and reproduced. FIG. 6 shows an overview of a conventional optical disc recording / reproducing apparatus. A tray 2 is installed in the main body 1 of the apparatus so that the tray 2 can be housed and pulled out. A concave disk mounting portion 3 is provided on the tray 2, and an optical disk 6 is mounted in the concave portion. The disk mounting portion 3 is provided with a recording / reproducing hole 4 in which an optical head such as a pickup is installed.

[0003]

[Problems to be solved by the device]

 As described above, in the conventional optical disc recording / reproducing apparatus, the optical disc is placed on the tray and rotated to record / reproduce information by the optical pickup. By the way, in many cases, foreign matter such as dust adheres to the optical disk surface due to the use environment or storage environment. If such a foreign substance adheres to the surface of the optical disc, the laser spot at the time of recording does not reach the recording layer on the surface of the optical disc in any of the above recording methods, which may result in defective recording. Such a recording failure is a fatal problem in an optical disk (write-once type) that can record only once. When the optical disk is stored in a cartridge and set in the device together with the cartridge, the foreign matter is unlikely to adhere, but when the optical disk itself is barely set in the device, the foreign matter easily adheres to the optical disk. It takes time and effort to clean the surface. If you forget this cleaning operation and start the recording operation, recording failure will occur and stable signal recording will not be possible.

Therefore, an object of the present invention is to provide an optical disk recording / reproducing apparatus which prevents foreign matter from adhering to a recording surface (front surface) of an optical disk during recording / reproducing and enables stable and highly accurate recording. It is in.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, an optical disk recording / reproducing apparatus according to the present invention is an optical disk recording / reproducing apparatus in which an optical disk is mounted on a disk mounting section of a tray section and information is recorded / reproduced by rotating the optical disk. It is configured to include at least one cleaning roller that extends in a radial direction of the disc mounting portion and is rotatable in a rotation direction of the optical disc.

[0006]

[Action]

 In this invention, since the rotatable cleaning roller provided in the disc mounting portion is provided in contact with the surface of the optical disc (recording / reproducing surface), dust and the like adhering to the surface of the optical disc can be removed, and it is always stable. It enables signal recording and playback.

[0007]

【Example】

 Next, this invention will be described with reference to the drawings. FIG. 1 is a perspective view of an essential part showing an embodiment of an optical disk recording / reproducing apparatus according to the present invention. In FIG. 1, the components designated by the same reference numerals as those in FIG. 6 are the same components. In this embodiment, a disc mounting portion 3 is provided on a tray 2 that can be stored in the apparatus main body 1 (inserted in the B direction), and the disk mounting portion 3 includes a recording / reproducing hole portion 4 and a recording / reproducing hole portion 4. At the same time, a predetermined number of circular cleaning rollers 5 (three at 120 ° intervals in this embodiment) that are long in the radial direction are provided at substantially equal intervals in the circumferential direction of the disk mounting portion 3. The cleaning rollers 5 are attached so as to be rotatable in the rotation direction of the optical disk.

The structure in the vicinity of the cleaning roller 5 is shown in FIG. In FIG. 2, locking portions 3a, 3a are fixed to the disk mounting portion or are integrally molded with the tray 2 by plastics, and the locking portions 3a, 3a are provided with claw portions 3b, 3b, respectively. The shaft portions 5a, 5a of the rod-shaped cleaning roller 5 are inserted and held in the locking portions 3a, 3a via the corresponding claw portions 3b, 3b. In this way, the cleaning roller 5 is rotatably attached. The engaging portion 3a has elasticity, and by making the facing distance of the claw portion 3b slightly smaller than the diameter of the shaft portion 5a, the cleaning roller 5 can be prevented from being pulled out and can be detached. As the outer skin portion of the cleaning roller 5, it is preferable to use a material such as non-woven fabric or chamois that easily adsorbs dust and the like.

3 and 4 are cross-sectional views taken along the line AA of FIG. 1 for explaining the operation in the above embodiment, showing a state in which the tray 2 is housed in the apparatus main body 1. Note that only one cleaning roller is shown for the sake of simplicity. As shown in FIG. 3, after the tray 2 is stored in the apparatus main body 1, the spindle motor 8 to which the turntable 7 is fixed as shown in FIG. 4 moves in the direction of arrow C to move the optical disk 6 to the cleaning roller. Set to a state of floating from 5. At this time, the optical disc 6 is brought into pressure contact with the turntable 7 by a clamper (not shown) arranged above the turntable 7. In this state, the spindle motor 8 rotates the optical disk 6. Then, when the spindle motor 8 is lowered again to the state shown in FIG. 3, the optical disk 6 continues to rotate on the cleaning roller 5 for a certain time due to inertia. During this rotation, dust and the like on the recording / reproducing surface of the optical disc 6 is removed by the outer skin of the cleaning roller 5 that absorbs dust. After the dust is removed in this way, the recording / reproduction of the optical disk 6 is performed through the recording / reproducing hole 4 through the optical head (not shown) as described above.

In the above embodiment, when cleaning the optical disk 6, the optical disk 6 was floated (free) as shown in FIG. 3, but the optical disk 6 shown in FIG. It is also possible to slightly lower 8 so that the optical disc 6 and the cleaning roller 5 come into light contact with each other. As described above, since the cleaning roller 5 is rotatable (is capable), there is no risk of scratches on the recording / reproducing surface of the optical disk 6 during cleaning, and the cleaning roller 5 is removable, so Conversion is also easy.

FIG. 5 is a sectional view similar to FIGS. 3 and 4 showing another embodiment of the optical disk recording / reproducing apparatus according to the present invention. In this embodiment, a flange 5b is provided on the outer peripheral side of the optical disc 6 to position the optical disc 6 and prevent the optical disc 6 from being detached from the cleaning roller 5. As a result, the recording / reproducing surface of the optical disc can be cleaned more reliably, and stable signal recording / reproducing can be performed.

[0012]

[Effect of the device]

 As described above, in the optical disc recording / reproducing apparatus according to the present invention, the rotatable cleaning roller provided in the disc mounting portion is brought into contact with the optical disc surface (recording / reproducing surface) to remove dust and the like adhering to the optical disc surface. As a result, stable signal recording and playback are always possible. Further, this cleaning is performed in the optical disc recording / reproducing apparatus, and the cleaning roller is detachable, so that the operation is easy and the high dustproof ability can be maintained at all times.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the vicinity of a cleaning roller in the embodiment of FIG.

FIG. 3 is a sectional view taken along the line AA in one operation mode in the embodiment of FIG.

4 is an AA in another operation mode in the embodiment of FIG.
FIG.

FIG. 5 is a perspective view of an essential part showing another embodiment of the optical disk recording / reproducing apparatus according to the present invention.

FIG. 6 is a perspective view of a main part of a conventional optical disc recording / reproducing apparatus.

[Explanation of symbols]

1 Device Main Body 2 Tray 3 Disk Placement Section 4 Recording / Playback Hole Section 5 Cleaning Roller 5a Shaft Section 5b Flange Section 6 Optical Disk 7 Turntable 8 Spindle Motor

Claims (4)

[Scope of utility model registration request] 1. An optical disk recording / reproducing apparatus in which an optical disk is mounted on a disk mounting section of a tray section and the optical disk is rotated to record and reproduce information, the optical disk recording / reproducing apparatus extending in a radial direction of the disk mounting section, An optical disk recording / reproducing apparatus comprising at least one cleaning roller rotatable in a rotation direction of an optical disk. 2. The optical disk recording / reproducing apparatus according to claim 1, wherein the surface portion of the cleaning roller is a dust absorbing member. 3. The optical disk recording / reproducing apparatus according to claim 1, wherein the cleaning roller is detachably provided. 4. The optical disc recording / reproducing apparatus according to claim 1, further comprising a flange portion that regulates the position of the optical disc, on the outer peripheral side of the cleaning roller.