JP2000182308A - Optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk device having excellent portability capable of stably writing even under vibrations and impacts, preventing refuse and dust from sticking to an optical disk and preventing errors to correctly writing data. SOLUTION: An optical disk device wherein information is recorded to a direct-read-after-write type disk or rewritable type disk 9 having a diameter of 80 mm is inserted or carried away into or from the optical disk device in a state that the optical disk 9 is housed within a cartridge 3. Also, the optical disk device wherein information is recorded or reproduced into or from the optical disk 9 is inserted or carried away into or from the optical disk device in a state that the optical disk 9 is housed within the cartridge 3. The device is provided with a holding means 4 holding the cartridge 3, driving mechanisms 2, 11 for the optical disk, an optical head 1 and a driving mechanism for the optical head 1, and an impact absorbing mechanism 7 and a vibration attenuating mechanism 5 are connected to the holding means 4 and the housing 8 of the optical disk device across a space between them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk apparatus for recording and reproducing information on an optical disk such as a CD-R.

[0002]

2. Description of the Related Art As write-once optical disks currently on the market, only CD-R disks having a diameter of 120 mm are known, and rewritable optical disks such as MDs (mini disks) having a diameter of 64 mm and 3. 5 inch MO (Magneto-optical disk) and 120mm diameter CD-R
W (rewritable compact disc), PD (power disc) and the like are known.

[0003] In order for a user to read information written on these optical discs, CDs corresponding to the respective CDs are read.
-In principle, it is necessary to add or replace a ROM drive device or PD drive device, or connect a dedicated external drive device to its own personal computer. However, CD-R discs are used in many personal computers that exist in the world. Data recorded by the mounted CD-ROM drive can be read.

A drive for an optical disk is generally susceptible to vibrations and shocks. Therefore, in order to ensure that data is written and read normally, an optical disk drive that records and reproduces data on and from an optical disk must be used. Although various measures have been taken to prevent vibration such as floating the drive portion with a simple rubber cushion, basically, the entire optical disk device is used in an environment free from shock and vibration.

[0005] In general, an optical disk apparatus for writing data to the above-mentioned write-once or rewritable optical disk should be used in a quiet environment as much as possible.

FIG. 1 shows the use state of an optical disk in an optical disk device used for a desktop personal computer.
As shown in FIG. 2, the CD-ROM drive device is limited to a horizontal position (FIG. 12A) or a vertical position (FIGS. 12B and 12C). The same applies to a CD-ROM drive for a notebook personal computer.

In the CD-ROM drive shown in FIG. 12, a tray has a guide for mounting an optical disk having a diameter of 120 mm in addition to a guide for mounting an optical disk having a diameter of 120 mm, and reproduces both optical disks. You can do it.

[0008] In order to prevent an error in writing data to a disk, the use environment of an optical disk device for writing is basically limited to a room where there is little dust or dirt. Can be used with the disk exposed.

Further, if there is dirt or dust on the disk surface or stains due to fingerprints, writing is basically not guaranteed. At this time, the user should clean the disk surface as necessary. In such a case, it is necessary to rewrite the data, or to abandon the area where the writing has failed.

[0010]

The above-mentioned CD-R
When an optical disk device for a writable disk-shaped storage medium is used indoors and only in a fixed state, it does not matter much if the optical disk is handled in a bare state, but it can be used outdoors and in a portable state. Many problems will arise when used in unsteady fashion.

For example, when a CD-R is used in an electronic device which is frequently used outdoors, such as a digital still camera or a digital video camera carried outdoors, the CD-R is exposed. When handled,
There is a problem that the information recording surface is unfavorably inconvenient and inconvenient at the time of replacement of the CD-R or the like because there is a possibility that the information recording surface may be stained or damaged.

FIG. 13 is a perspective view of a base unit of a conventional optical disk device. Reference numeral 51 denotes an optical pickup, 52 denotes a spindle motor, and 53 denotes a thread motor which is a feed mechanism of the optical pickup. A substantially circular hole 54a is formed near a corner of the base unit 54, and a fixing member described later is provided here.

FIG. 14 is an enlarged sectional view of the vicinity of the connection between the base unit and the frame of the optical disk device of FIG.
A rubber cushion 55 is attached as a fixing member through a hole 54 a provided in the base unit 54.
The inside of the rubber cushion 55 is filled with a spacer 56. The base unit 54 is attached to a frame 58 by a rubber cushion 55 and a screw 57 for attachment.

By providing the rubber cushion 55 in this manner, the impact on the base unit 54 is absorbed.

In the structure shown in FIG. 14, however, the rubber cushion 55 can be used to absorb shocks in the vertical direction, that is, in the direction perpendicular to the main surface of the base unit 54, but in the horizontal direction, that is, in the base unit 54. With respect to an impact in a direction parallel to the main surface of the rubber cushion 55, the rubber cushion 55 has a disadvantage that a sufficient impact absorbing function does not work due to its structure, and the base unit 54 largely vibrates laterally.

Therefore, in the configuration of the optical disk device,
Since an error occurs at the time of writing due to a lateral impact, it cannot be applied to an electronic device carried outdoors.

Further, in the optical disk apparatus of the tray system as shown in FIG. 12, a mechanism for driving the tray is required, which is disadvantageous when downsizing the entire apparatus.

FIG. 15 shows a cartridge called a caddy used for an optical disk such as an electronic book. 15A is a plan view of the front surface of the cartridge, FIG. 15B is a plan view of the back surface, and FIG. 15C is a diagram showing a state when the optical disk is replaced. 70 is a cartridge, 71 is a shutter, 72 is a disk replacement cover,
Reference numeral 73 denotes an optical disk.

In the cartridge 70, when the optical disk 73 is taken in and out, as shown in FIG.
Since the disc replacement cover 72 is opened and the optical disc 73 is taken out, there is a high possibility that the surface of the optical disc 73 will be stained by touching the surface of the optical disc 73 with a hand at this time. . In addition, the size of the cartridge 70 is larger than the size of the optical disk 73 by an amount corresponding to the corners, which hinders miniaturization of the optical disk device.

In order to solve the above-mentioned problems, in the present invention, writing can be performed stably even under vibration and impact, dust and dirt can be prevented from adhering to the optical disk, and errors can be prevented. It is intended to provide an optical disk device which can write data accurately and is excellent in portability.

[0021]

SUMMARY OF THE INVENTION An optical disk device according to the present invention is an optical disk device for recording information on a write-once or rewritable optical disk having a diameter of 80 mm, wherein the optical disk is stored in a cartridge. Are inserted into and removed from the optical disk device.

According to the configuration of the present invention described above, the diameter is 80 m.
Since a write-once or rewritable optical disk of m is used, the size of the optical disk device can be reduced. Further, since the optical disk is housed in the cartridge, it is possible to prevent dust and dirt from adhering to the optical disk.

The optical disk apparatus of the present invention records and / or reproduces information on an optical disk.
With the optical disk stored inside the cartridge,
Insertion and carry-out to and from the optical disk device are performed, the device includes a holding unit for holding the cartridge, a driving mechanism for the optical disk, an optical head, and a driving mechanism for the optical head. They are connected by a shock absorbing mechanism and a vibration damping mechanism.

According to the configuration of the present invention described above, the shock absorbing mechanism and the vibration damping mechanism connect the holding means and the housing of the optical disk device to absorb a shock when a large shock is applied. In addition, the vibration generated at that time can be absorbed, and the holding means can be quickly stabilized.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to an optical disk device for recording information on a write-once or rewritable optical disk having a diameter of 80 mm, and to an optical disk device in which the optical disk is housed in a cartridge. This is an optical disc device into which insertion and ejection are performed.

According to the present invention, in the above optical disk device, the cartridge has an opening through which an optical head of the optical disk device can be inserted, and has a shutter member that can open and close the opening.

According to the present invention, there is provided the above-mentioned optical disk device, further comprising holding means for holding the cartridge, wherein the holding means and the housing of the optical disk device are connected via a shock absorbing mechanism.

According to the present invention, there is provided the above-mentioned optical disk device, further comprising holding means for holding the cartridge, wherein the holding means and the housing of the optical disk device are connected via a vibration damping mechanism.

According to the present invention, there is provided the above optical disk apparatus, further comprising a holding means for holding the cartridge, wherein the holding means and the housing of the optical disk apparatus are connected via a shock absorbing mechanism and a vibration damping mechanism. Configuration.

The present invention relates to an optical disk device for recording and / or reproducing information on and from an optical disk, wherein the optical disk is inserted into and removed from the optical disk device in a state where the optical disk is housed inside the cartridge. Holding means for holding the optical disk, a drive mechanism of the optical disk, an optical head,
An optical disk device having a drive mechanism for an optical head and connecting a holding unit and a housing of the optical disk device by a shock absorbing mechanism and a vibration damping mechanism.

According to the present invention, in the above optical disk apparatus, an opening window in which the optical head can be inserted into the cartridge and a shutter member capable of opening and closing the opening window are formed.
When the optical disc is used, a shutter member is moved to open an opening window so that the optical head faces the optical disc.

Further, according to the present invention, in the above-mentioned optical disk apparatus, a part of the leading end side in the cartridge insertion direction has a curved outer shape along the shape of the optical disk, and the optical disk has a curved outer shape. A part of the holding means facing the portion has a curved outer shape along the outer shape of the optical disk.

Further, according to the present invention, in the above optical disk apparatus, a write-once or rewritable optical disk having a diameter of 80 mm is used as the optical disk.

Further, according to the present invention, in the above-mentioned optical disk device, the shock absorbing mechanism and the vibration damping mechanism are constituted by the same components.

FIG. 1 is a schematic configuration diagram (plan view) of a main part of an optical disk device as one embodiment of the optical disk device of the present invention. FIG. 2 is an enlarged side view of the optical disk device of FIG.

The optical disk device 30 is an optical disk device that records and / or reproduces information on an optical disk, that is, is applied to an optical recording / reproducing device, an optical reproducing device, and the like. For example, it is suitable for use in an optical disk device for a write-once (CD-R) or rewritable (CD-RW) optical disk having an optical disk diameter of 80 mm.

The optical disk device 30 has an optical pickup (OP) 1 as an optical head and a spindle motor 2 as a drive mechanism of the optical disk. The optical pickup 1 is configured to be driven by a drive mechanism (not shown) in the direction of arrow AA in the figure. Also,
A turntable 11 for fixing the optical disk and transmitting the drive of the spindle motor 2 to the optical disk is attached to the upper part of the spindle motor 2.

Below the bottom surface of the frame 8, a circuit board 14 having a certain space and having a circuit for controlling the optical disk device 30 formed at the lowermost portion is mounted.

A base unit 4 is disposed above the optical pickup 1 and the spindle motor 2. The drive shaft 1A and the spindle motor 2 of the optical pickup 1 are attached to the back surface of the bottom surface of the base unit 4 (not shown), and the turntable 11 and the optical pickup 1 are further provided on the bottom surface of the base unit 4. It is configured to face the opening 4a. The base unit 4 constitutes holding means for holding a cartridge of an optical disk described later.

Further, in the present embodiment, for the purpose of absorbing the shock applied to the optical disk device 30 from all directions and all directions and attenuating the vibration, for example, a spring 7 as a shock absorbing mechanism and a vibration damping mechanism as a shock absorbing mechanism are provided. For example, an oil damper 5 is provided. The base unit 4 is connected to an outer casing (frame) 8 by the spring 7 and the oil damper 5.

In FIG. 1, the surrounding frame (housing) 8
Has a fastener or the like so that it is made of metal, but the material of the frame 8 is not particularly limited and may be made of resin.

A total of eight springs 7 are provided on both sides of the base unit 4 for constituting the shock absorbing mechanism. A total of eight springs 7 are provided between the upper end of the frame 8 of the optical disk device and the lower end of the base unit 4. And the other half is provided to connect the lower end of the frame 8 and the upper end of the base unit 4.

Further, two oil dampers 5 constituting the vibration damping mechanism are provided on both sides of the frame 8 in total, ie, 4 oil dampers.
As shown in FIG. 3, a silicone oil 5b is filled in an external member such as a rubber 5a. A damper shaft 6 having a circular cross section is inserted into the center of the oil damper 5, and each of the damper shafts 6 is connected to a corner of a side portion of the base unit 4.

The spring 7 has the property of absorbing shocks but hardly damping vibration, while the oil damper 5 has the property of accelerating damping of vibration. Therefore, by combining these, the spring 7 absorbs a larger shock, and the vibration generated by the spring 7 is attenuated by the oil damper 5 at that time, so that the base unit 4 can be stabilized immediately after the shock is applied. . When vibrations occur in the spring 7 due to the impact, the base unit 4 may move up and down. At this time, since the space below the frame 8 is formed, the base unit 4 collides and the circuit board 14 is Damage is prevented.

The damper 5 and the spring 7 have optimal numbers and arrangements depending on the design of the base unit 4 and the frame 8 and the like. Here, one form of arrangement is shown.

In this embodiment, a dedicated cartridge called a caddy is used as a means for taking an optical disk into and out of the optical disk device 30. The optical disk is inserted into the optical disk device 30 and discharged from the optical disk device 30 while being stored in the cartridge (caddy).

FIG. 4 is a perspective view of one embodiment of a cartridge used in the optical disk device 30 of FIG. The cartridge 3 has a curved shape following the circular shape of the optical disc 9 incorporated in the cartridge 3 by removing a corner of the distal end face 3A in the insertion direction. With this shape, the area occupied by the cartridge 3 can be reduced.

Further, a shutter 13 is formed on the back surface of the cartridge 3 so that it can be opened and closed as shown by the arrow in the figure. The surface of the cartridge 3 is designed so that the label of the optical disk 9 stored as a transparent material is preferably legible.

In the cartridge 3, the optical disk 9 can be replaced by inserting and removing the optical disk 9 from the cartridge 3. The optical disk 9 can be put in and taken out of the cartridge 3 by, for example, a method in which the upper surface of the cartridge 3 becomes a lid like a bivalve and the lid is opened to put the optical disk 9 in and out, or a state in which the rear side in the insertion direction holds the optical disk 9. Slide with optical disk 9
Can be adopted.

In FIG. 1, the position where the cartridge 3 is mounted is indicated by a chain line, and the position where the optical disk 9 is mounted is indicated by a broken line.

The optical disk 9 is mounted on the spindle motor 2 such that its center of rotation coincides with the rotation axis of the spindle motor 2. Then, the turntable 11 that rotates integrally with the rotation shaft of the spindle motor 2 enters the opening at the center of the disk 9 and fits into the center hole of the disk 9. Further, the cartridge 3 is placed in the base unit 4.

Here, a mechanism for fixing the optical disk 9 housed in the cartridge 3 in the optical disk device 30 of FIG. 1 to the turntable 11 will be described with reference to the sectional view of FIG. FIG. 5A shows a state before fixing, and FIG. 5B shows a state after fixing.

As shown in the sectional view of FIG. 5A, a chucking plate 10 is rotatably mounted on the upper surface of the cartridge 3. The optical disk 9 is not solidified on the bottom surface in the cartridge 3, and the shutter 13 on the back surface of the cartridge is closed. As described above, since the shutter 13 usually covers the opening of the cartridge 3 and is closed, the internal optical disk 9 can be protected from adhesion of dust, dust, fingerprints and the like.

In use, the shutter 13 on the back of the cartridge 3 is opened by a loading mechanism (not shown) as shown in FIG.
The turntable 11 is inserted into the central opening of the turntable. At this time, the objective lens portion of the optical pickup 1 simultaneously faces another portion (not shown) of the opening of the cartridge 3.

Further, the chucking plate 10 is attracted by a magnet (not shown) provided in the turntable 11 so as to hold the position of the disk 9 with the disk 9 interposed therebetween, and to rotate the spindle 9 through the rotating shaft 12. The rotation of the motor 2 can be transmitted to the disk 9.

The above-described loading mechanism has a function of positioning the cartridge 3 from the insertion position to the use position. A case where a so-called slot-in type loading mechanism is used as one mode of the loading mechanism will be described below.

In the case of adopting the slot-in method in the optical disk device 30 of the above-described embodiment, as shown in FIG. 6 as viewed from the front of FIG. Is provided with a holder 15 and a slider 16. The holder 15 holds the cartridge 3 so as to wrap it from above, and the slider 16 is provided between the holder 15 and the base unit 4.

FIG. 7 is an exploded perspective view of the loading mechanism viewed from below. Note that FIG. 7 shows a minimum number of parts, and thus partially differs from the actual loading mechanism of the optical disk apparatus.

Two projections 15a are provided on the side of the holder 15.
Is provided. The same is true for the other side. The upper surface of the holder 15 has a curved front portion in conformity with the shape of the cartridge 3, and a claw 15 b for holding the cartridge 3 is provided at a distal end portion. Further, a window 15c is formed slightly forward of the central portion so that the label of the optical disk 9 can be seen through the upper surface of the transparent cartridge 3.

Like the base unit 4, the slider 16 has a large opening at the bottom so that the turntable 11 and the optical pickup 1 can face the cartridge 3.

Further, two slide grooves 16a are provided on the side surface of the slider 16. This slide groove 16a
Is inserted and slid into the projection 15a of the holder 15, and is formed diagonally so that the position of the groove 16a becomes lower toward the insertion direction of the cartridge 3 (to the right in FIG. 7). The same is true for the other side.

The slider 16 is further formed with claws 16b and 16c at the lower portions on both sides, respectively.
b, 16c are grooves 4 provided on the bottom surface of base unit 4.
b, 4c so that the slider 16 can be fixed in the horizontal direction and can move back and forth.

A slide groove 4d formed in the vertical direction is also provided on the side surface of the base unit 4. The slide groove 4d also fits the protrusion 15a of the holder 15 and slides. When the holder 15 and the slider 16 operate, the base unit 4 and the holder 1 are moved.
5, so that only the vertical position changes without changing the front-back position.

Next, the operation of the loading mechanism will be described with reference to the side view of FIG. FIG. 8A shows a state in which the cartridge 3 is inserted, and FIG. 8B shows a state in which the cartridge 3 is fixed at a predetermined position. The cartridge 3, the holder 15 and the slider 16 are respectively shown in a side view.

First, in the state of FIG. 8A, the holder 15 is located at a position before and higher than the slider 16, and the projection 15a of the holder 15 is at the uppermost part of the slider groove 16a. The cartridge 3 is mounted in the holder 15 by being inserted in the direction of the arrow in FIG. 8A. At this time, a shutter opening / closing mechanism (not shown) operates to slide the shutter 13 on the back surface of the cartridge 3, so that the optical disc 9 is exposed from the opening of the cartridge 3.

Further, the slider 16 slides leftward in the figure, the protrusion 15a of the holder 15 moves along the slide groove 16a, and the holder 15 moves downward. When the cartridge 3 descends according to the holder 15, the optical disk 9 in the cartridge 3 is mounted on the turntable 11 in a rotatable state as shown in FIG.

The cartridge 3 after being mounted on the holder 15 is integrated with the base unit 4 as holding means by a positioning axis and a height determining axis (not shown) provided at appropriate positions on the base unit 4. You.

On the other hand, the cartridge 3 is
At the time of discharging from 0, the relative operation of the holder 15 and the slider 16 is performed so as to go through a process reverse to the above process.

Here, a spring (not shown) is connected between the slider 16 and the base unit 4, and when the cartridge 3 is mounted, the spring is fixed in an extended state.
When the cartridge 3 is ejected, the spring is opened and contracted. With this configuration, the optical disk 9 is released from the turntable 11 by moving the slider 16 by using the elastic force of the spring to move the holder 15 along the slide groove 16a.
The cartridge 3 can be taken out.

Further, by similarly providing a mechanism for ejecting the cartridge 3 in the horizontal direction by utilizing the elastic force, the cartridge 3 can be automatically taken out from the holder 15 and ejected from the optical disk device 30.

The mechanism for moving the slider 16 and the mechanism for ejecting the cartridge 3 in the horizontal direction may be a mechanism that does not use elastic force, for example, a mechanism driven by an electric motor such as an optical disk drive built in a desktop personal computer. It is possible. The same mechanism can be used for mounting the cartridge 3 at a predetermined position and mounting the optical disk 9 to the turntable 11.

When the elastic force is used, there is an advantage that no electric power is consumed for discharging the cartridge 3.

The loading mechanism for holding the cartridge 3 at a predetermined position may employ a system other than the slot-in system described above.

For example, a portable compact disc (C
D) It is also possible to apply a so-called kangaroo pocket system in which a medium is opened and a medium is opened, which is used for a reproducing apparatus or the like. In this case, the base unit 4 is provided with a member for holding the cartridge 3 so as not to be displaced, for example, a member such as a groove, a claw, or a projection. further,
It is necessary to provide the base unit 4 with a mechanism for mounting the optical disk 9 on the turntable 11 by opening the shutter 13 on the back surface of the cartridge 3.

The optical disk device 30 according to the present embodiment described above
According to this, since the spring 7 of the shock absorbing mechanism and the oil damper 5 of the vibration damping mechanism are connected between the base unit 4 and the frame 8, even if a slight shock is applied during the data writing, it is prompt. The data can be normally written by stabilizing the base unit 4. Further, the drive mechanism (spindle motor 2 and turntable 11) of the optical pickup 1 and the optical disk 9 can be protected from impact.

As described above, since the optical pickup 1 and the drive mechanism of the optical disk 9 are protected from impact, data writing is guaranteed even under slight vibration and impact, and loss of the data area due to rewriting is minimized. Can be.

Since data writing is guaranteed even under vibration and shock, and adhesion of dust and dirt can be prevented when the optical disk 9 is replaced, the optical disk device 30 is used outdoors. It becomes possible.

Further, by inserting and removing the optical disk 9 into and from the optical disk device 30 with the optical disk 9 housed in the dedicated cartridge 3, the optical disk device 30 can be used without worrying about dust, dust, fingerprints and the like on the optical disk 9 at all. can do.

FIG. 9 shows the optical disk device 30 of FIG.
Is a block diagram showing a case where the present invention is applied to a CD-R drive. The optical pickup 1 includes an LD (semiconductor laser diode) driver,
A PDIC (photodiode IC) as a light receiving element is provided. Analog control unit B
1, a recording servo unit B2, an interface unit B3, a controller unit B4, and a driver unit B5. In addition, detailed description about the inside of each part is omitted.

The analog detection section B1 processes the detection signal obtained by the optical pickup 1 and transmits it to the recording servo section B2. In the recording servo section B2, an output signal is passed to the interface section B3 based on the incoming signal, and control signals such as a spindle motor, a thread motor, focus / tracking control, and insertion / removal of an optical disk are sent to the driver section B5. . Driver B
In step 5, based on the control signal, a signal for driving these spindle motor, sled motor, focus / tracking control, and loading / unloading of the optical disk is output. On the other hand, the interface section B3 processes and outputs an output signal so that signals can be exchanged with the outside of the apparatus. The controller section B4 includes a recording servo section B2 and an interface section B.
3 is performed.

The optical disk device 30 of the present embodiment
Is applied to an electronic still camera, a camera block for inputting image information is provided.

Further, when a writable optical disk such as a CD-R is used, even if a write error occurs for some reason, data is written again to the area next to the area, and all data are written. It is desirable to configure the control block so that continuous correct data can be read out as if the area where the error occurred did not exist at the time when the data writing was completed.

Next, another embodiment of the optical disk apparatus according to the present invention will be described. As shown in a plan view of the main part of the optical disk device 31 of the present embodiment, the base unit is similar to the cartridge 3 in which a part on the front end side is curved along the shape of the optical disk 9 as shown in FIG. 4
Is configured as a curved outer shape.
With this configuration, the area occupied by the base unit 4 can be reduced, and furthermore, FIG.
By making the frame 8 have the same curved shape as shown in FIG. 0, the size of the optical disc device 31 can be reduced.

In the above-described embodiment, the shock absorbing mechanism and the vibration damping mechanism are realized by the combination of the spring 7 and the oil damper 5, but are not necessarily limited to the spring 5 and the oil damper 5. May be adopted.

For example, it is possible to realize both the shock absorbing mechanism and the vibration damping mechanism with the same member by using a semi-fluid substance such as so-called α-gel. As one mode when such a substance is used, the base unit 4 and the frame 8
FIG. 11 shows a cross-sectional view of the connection part of FIG.

As shown in FIG. 11, a fixing member 21 made of the above-mentioned semi-fluid substance is arranged including an opening 19 provided in the base unit 4, and a screw 22 is penetrated in the center and fixed to the frame 8. . The fixing member 21 absorbs shock and attenuates vibration in the vertical and horizontal directions, and can stabilize the base unit 4 immediately after receiving the shock.

In this case, the space required for connecting the base unit 4 and the frame 8 can be reduced.
Further, as compared with the conventional rubber cushion 55 shown in FIG. 14, it is excellent in that it has the effect of absorbing shock and damping vibration even in the horizontal direction.

In the optical disk device of the present invention, when, for example, the above-mentioned CD-R or CD-RW having a diameter of 80 mm is adopted as an optical disk of a storage medium, many personal computers (personal computers) in the world require a new drive. Without connection, data can be read by a normally mounted CD-ROM drive.

Further, as a future development, a high capacity disk such as a DVD (Digital Video Disk) -RAM disk or a DVD-RW disk having a diameter of 80 mm can be put in a dedicated cartridge of the same shape to maintain upward compatibility. is there. In this case, the personal computer has a DV
It is assumed that a drive compatible with a D-RAM or a DVD-RW is mounted.

When an optical disk having a diameter of 120 mm is used, the entire optical disk device becomes large. However, by using an optical disk device dedicated to an optical disk having a diameter of 80 mm as described above, the optical disk device can be downsized. Therefore, if this is applied to an electronic device such as a digital still camera, the size of the device can be reduced and the burden on the user at the time of shooting can be reduced.

When an optical disk such as an MO (magneto-optical disk) is used, a drive for reading data is not provided as standard equipment on the personal computer side. Therefore, the user needs to purchase a new drive. When a CD-R or CD-RW is adopted, data can be read by a CD-ROM drive normally mounted on a personal computer as described above.

[0092] The optical disk device of the present invention is not limited to the above-described embodiment, and may take various other configurations without departing from the gist of the present invention.

[0093]

According to the present invention, the size of the optical disk apparatus can be reduced by using a write-once or rewritable optical disk having a diameter of 80 mm.
Further, in the optical disk device, since the optical disk is used by being housed in a cartridge, it is possible to prevent a writing error caused by dust and dirt adhering to the optical disk.

Since the cartridge holding means is connected to the shock absorbing mechanism and the vibration damping mechanism, the optical disk and the like are protected from shock, so that data writing is guaranteed even under slight vibration and shock. The loss of the data area due to rewriting can be minimized.

Since data writing is guaranteed even under vibration and shock, and adhesion of dust and dirt can be prevented when the optical disk is replaced, the optical disk device can be used outdoors. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of an optical disk device according to an embodiment of the present invention.

FIG. 2 is an enlarged side view of the optical disk device of FIG.

FIG. 3 is a sectional view of an oil damper of the optical disk device of FIG.

FIG. 4 is a perspective view of a cartridge used in the optical disk device of FIG.

FIGS. 5A and 5B are diagrams illustrating an operation of attaching the optical discs to the turntable.

FIG. 6 is a front view of the optical disc device when a slot-in type loading mechanism is used.

FIG. 7 is an exploded perspective view of the loading mechanism viewed from below.

FIG. 8 is a diagram for explaining the operation of A and B loading mechanisms.

FIG. 9 is a diagram showing one form of a control block in the optical disk device of FIG. 1;

FIG. 10 is a plan view of a main part of an optical disk device according to another embodiment of the present invention.

FIG. 11 is a cross-sectional view of the vicinity of a connection portion between a base unit and a frame according to still another embodiment of the present invention.

FIGS. 12A to 12C are diagrams showing usage patterns of an optical disk device using a conventional tray.

FIG. 13 is a perspective view of a base unit in a conventional optical disc device.

FIG. 14 is a cross-sectional view of the vicinity of a connection portion between a base unit and a frame in a conventional optical disc device.

FIG. 15 is a schematic configuration diagram of a conventional optical disk cartridge.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical pickup (OP), 2 ... Spindle motor, 3 ... Cartridge, 4 ... Base unit, 5 ... Oil damper, 6 ... Damper shaft, 7 ... Spring, 8 ... Housing (frame), 9 ... Optical disk, 10 ... Catching plate, 11 turntable, 12 rotating shaft, 13 shutter, 14 circuit board, 15 holder, 16 slider, 21 fixing member, 22 screws, 30, 31 optical disk device, 51 optical pickup (OP), 52 ...
Spindle motor, 53 ... thread motor, 54 ...
Base unit, 55: rubber cushion, 56: spacer, 57: screw, 58: frame, 70: cartridge, 71: shutter, 72: disk replacement cover, 7
3: Optical disk

Claims (9)

[Claims] 1. An optical disk device for recording information on a write-once or rewritable optical disk having a diameter of 80 mm, wherein the optical disk is inserted into and unloaded from the optical disk device while the optical disk is housed in a cartridge. An optical disk device characterized by being performed. 2. The cartridge according to claim 1, wherein the cartridge has an opening through which an optical head of the optical disk device can be inserted, and has a shutter member that can open and close the opening. An optical disk device as described in the above. 3. The optical disk drive according to claim 1, further comprising: holding means for holding the cartridge, wherein the holding means and the housing of the optical disk device are connected via a shock absorbing mechanism. An optical disk device as described in the above. 4. The apparatus according to claim 1, further comprising holding means for holding said cartridge, wherein said holding means and a housing of said optical disk device are connected via a vibration damping mechanism. An optical disk device as described in the above. 5. A holding means for holding the cartridge, wherein the holding means and the housing of the optical disk device are connected via a shock absorbing mechanism and a vibration damping mechanism. The optical disk device according to claim 1. 6. An optical disk device for recording and / or reproducing information on and from an optical disk, wherein the optical disk is inserted into and removed from the optical disk device while the optical disk is housed in a cartridge. A holding unit for holding the cartridge, a driving mechanism for the optical disk, an optical head, and a driving mechanism for the optical head; and a shock absorbing mechanism and a vibration damping mechanism between the holding means and the housing of the optical disk device. An optical disk device connected via a computer. 7. An opening window in which the optical head can be inserted into the cartridge and a shutter member capable of opening and closing the opening window are formed. When the optical disk is used, the shutter member is moved to open the opening. 7. The optical disk device according to claim 6, wherein a window is opened so that the optical head faces the optical disk. 8. The holding part facing a part of the optical disk having a curved outer shape along a shape of the optical disk at a part on a tip end side in an insertion direction of the cartridge. 7. The optical disk device according to claim 6, wherein a part of the means has a curved outer shape along the outer shape of the optical disk. 9. The apparatus according to claim 6, wherein said shock absorbing mechanism and said vibration damping mechanism are constituted by the same component.
An optical disk device according to claim 1.