JPH04105283A - Optical disk recording and/or reproducing device - Google Patents

Abstract

PURPOSE:To simplify the constitution and to reduce the size by writing and/or reading an information signal on and from a 1st optical disk, loaded in a 1st rotary driving means, and a 2nd optical disk, loaded in a 2nd rotary driving means, by an optical pickup device. CONSTITUTION:The 1st optical disk put in a cartridge 103 is loaded in the 1st rotary driving means 2 by a disk cartridge loading mechanism 17 and the 2nd optical disk is loaded in the 2nd rotary driving means 3 by a disk loading mechanism 18; and those optical disks are positioned on the same plane without abutting on each other. The optical pickup device 8 which is arranged movably in a section from nearby the 1st rotary driving means 2 to nearby the 2nd rotary driving means 3 writes and/or read the information signal. Consequently, the device constitution is simplified and reduced in size and the information signal can be recorded and/or reproduced from both the optical disks.

Description

[Detailed description of the invention] Hereinafter, the present invention will be explained in the following order.

A. Industrial field of application B1 Summary of the invention C8 Prior art 1 Problems to be solved by the invention E9 Means for solving the problems F9 Effects G. Examples (G-1) Optical disc recording and recording according to the present invention /or Optical disk used in a playback device (Figs. 7 to 10) (C, -9) fa, I TJyr de M'+
mli'MGllcHM yo = s Tsume r de z! Configuration of professional pick amplifier device (Figures 1 and 2) (G-3) Configuration of disk cartridge loading mechanism (Figures 1 to 4) (G-4) Configuration of disk loading mechanism (Figure 1) ,
Figures 2, 5 and 6) H0 Effects of the invention A, Industrial application field The present invention relates to an optical disc recording and/or reproducing device for recording and/or reproducing information signals on an optical disc. .

B0 Summary of the Invention The present invention is an optical disc recording and/or reproducing apparatus for recording and/or reproducing information signals on an optical disc, in which a first optical disc housed in a cartridge is loaded into a first optical disc by a disc cartridge loading mechanism. At the same time, a second optical disc is mounted on the second rotational driving means by a disc loading mechanism so that these optical discs are located on the same plane without contacting each other. Information signals are written and/or onto the first and second optical discs by an optical pick amplifier device that is disposed so as to be operable to move over a section from the vicinity of the first rotational drive means to the vicinity of the second rotational drive means. By performing readout, it is possible to simplify and downsize the device configuration while recording and recording information signals on both optical discs that are loaded while housed in a cartridge and optical discs that are coded on a single optical disc. /or can be played back.

C1 Prior Art Conventionally, optical discs have been proposed that are configured to allow information signals to be written and read and used as recording media for information signals.

As such an optical disk, there is a so-called magneto-optical disk. This magneto-optical disk has a signal recording layer capable of so-called perpendicular magnetization. This signal recording layer is heated above the Curie temperature by means such as laser beam irradiation, and an external magnetic field is applied, so that the magnetization direction follows the direction of the external magnetic field, and the information signal is recorded. Writing is performed. In addition, this signal recording layer is irradiated with a linearly polarized light beam such as a laser beam, and the difference in the magnetization direction is detected by detecting the change in the polarization direction due to the Kerr effect that occurs when the light beam is reflected on the surface of the signal recording layer. The information signal is read out.

To write and/or read information signals to and from such a magneto-optical disk, an optical disk recording and/or reproducing device including an optical pickup device and a magnetic head is used.

That is, the optical pickup device of this optical disk recording and/or reproducing apparatus irradiates a focused laser beam onto one main surface of the magneto-optical disk, and also detects the reflection of the laser beam from the magneto-optical disk. configured to detect light.

Further, the magnetic henode of the optical disk recording and/or reproducing device is configured to apply a magnetic field from the other side to a portion of the magneto-optical disk that is irradiated with the laser beam by the optical big amplifier device. has been done.

In this optical disk recording and/or reproducing device, the magneto-optical disk is rotated, and the optical pickup device and the magnetic head are moved in a radial direction over the inner and outer circumferences of the magneto-optical disk in synchronization with each other. By doing so, information signals can be written and/or read over substantially the entire surface of the magneto-optical disk.

D0 Problems to be Solved by the Invention By the way, in the above-described optical disk recording and/or reproducing apparatus, it is necessary to mount the magneto-optical disk to a rotational drive means that rotates the magneto-optical disk. This rotational driving means includes a disk table formed to hold the center portion of the magneto-optical disk, and a motor that rotates the disk table. This disc table is disposed approximately in the center of the outer casing of the optical disc recording and/or reproducing apparatus. Further, this disk table is attached to the above-mentioned motor, and since this motor is attached to the chassis for the necessity of high-precision positioning for the above-mentioned optical pick amplifier device, etc., the disk table cannot be moved outside of the above-mentioned outer casing. It is difficult to do so.

Therefore, this optical disc recording and/or reproducing apparatus is equipped with a so-called rope ink mechanism for mounting the magneto-optical disc on the rotational drive means. This loading mechanism transports the magneto-optical disk inserted from the outside of the outer casing to the center of the outer casing, moves it toward the disk table, and moves the magneto-optical disk to the center of the outer casing. The disk table is engaged with a chucking hole provided in the chucking hole to complete mounting of the magneto-optical disk to the rotational drive means.

The optical disc includes one that is housed in a cartridge configured in a housing shape and is mounted on the rotational drive means, and one that is mounted as a single optical disc on the rotational drive means, and further, Some have various outer diameter dimensions.

When not in use, the optical disc housed in the above-mentioned cartridge is protected from adhesion of dust and contact with fingers, etc., and is protected from damage caused by dust and fingers. There is. On the other hand, when the optical disc housed in the cartridge is mounted on the rotation drive means, a part of the cartridge is opened so that at least a part of the disc is exposed to the outside through this opening. It is necessary to be

Therefore, the loading mechanism that attaches the optical disc stored in the cartridge to the rotation drive means,
It is necessary to provide a mechanism for opening a portion of the cartridge, making it difficult to simplify the configuration.

Further, since the cartridge is configured to have an outer diameter dimension corresponding to the outer diameter of the optical disc stored in the cartridge, a loading mechanism capable of loading optical discs having various outer diameter dimensions is configured. It is difficult to do so.

In the optical disc recording and/or reproducing apparatus that uses the optical disc that is mounted on the rotary drive means, even when using optical discs with various outer diameters, the loading mechanism of a simple configuration allows The optical disc can be mounted on the rotational drive means.

As described above, conventional optical disc recording and/or reproducing apparatuses that can use optical discs having various outer diameters are configured such that the optical disc is mounted singly on the rotation drive means. On the other hand, those using an optical disc housed in a cartridge are configured to use an optical disc having a single outer diameter.

SUMMARY OF THE INVENTION The present invention is proposed in view of the above-mentioned circumstances, and, without complicating the configuration, provides an optical disc that is housed in a cartridge and is mounted on a rotational drive means, and a rotary drive means that can be used alone. It is an object of the present invention to provide an optical disc recording and/or reproducing device that can write and/or read information signals to and from an optical disc that is loaded into the optical disc.

E1 Means for Solving the Problems In order to solve the above problems and achieve the above objects, an optical disc recording and/or reproducing apparatus according to the present invention includes a first optical disc that is housed in a cartridge and constitutes a disc cartridge together with the cartridge. is installed and this first
a first rotary drive means for holding and rotating an optical disc, and a second optical disc mounted thereon so as not to abut the second optical disc against the first optical disc mounted on the first rotary drive means. a second rotational drive means for holding and rotating the first optical disk on the same plane as the first optical disk; a disk cartridge loading mechanism for mounting the first optical disk on the first rotational drive means; 2
a disk loading mechanism for loading an optical disk onto the second rotational drive means; and an optical device arranged to be movable over a section extending from the vicinity of the first rotational drive means to the vicinity of the second rotational drive means. and a big amplifier device, and the optical pick amplifier device writes and/or reads information signals to and from the first optical disk and the second optical disk.

F6 Effect In the optical disc recording and/or reproducing apparatus according to the present invention, the optical pickup device is arranged so as to be operable to move over a section extending from the vicinity of the first rotational drive means to the vicinity of the second rotational drive means. a first optical disc mounted on the first rotational drive means by a disc cartridge loading mechanism; and a first optical disc mounted on the second rotational drive means by the disc loading mechanism so as to be flush with the first optical disc. Since information signals are written to and/or read from the second optical disk, the first
Then, information signals are recorded and/or reproduced on the second optical disc.

G9 Embodiment Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

In this example, an optical disc recording and/or reproducing apparatus according to the present invention is installed in a cartridge 101 as shown in FIGS. 7 to 10. Either one of the first and second disk cartridges 103 and 104 storing the first optical disk in '102, and/or a second optical disk (not shown) that is used alone without being stored in a cartridge is installed. This is an example configured as a device for recording and/or reproducing information signals on these optical discs.

(G-1) Optical disc used in the optical disc recording and/or reproducing apparatus according to the present invention (Figs. 7 to 10) As shown in Figs. 7 and 8, the first disc cartridge 103 includes: A magneto-optical disk 105, which is a first optical disk and is configured to be capable of writing and reading information signals, is housed in the cartridge 101.

The magneto-optical disk 105 includes a signal recording layer capable of so-called perpendicular magnetization and a base layer made of a material such as polycarbonate, which holds the signal recording layer. This magneto-optical disk 105 heats the signal recording layer by condensing a laser beam and applies an external magnetic field to change the magnetization direction of a minute region of the signal recording layer, thereby generating an information signal. Can write.

The information signal written in this signal recording layer can be read by irradiating this signal recording layer with a laser beam and detecting the polarization direction of the reflected light.

The magneto-optical disk 105 is rotatably housed in the cartridge 101, which has a substantially rectangular housing shape. This cartridge 7 101 has the above-mentioned magneto-optical disk 1.
It has a recording/reproducing opening that exposes a portion of both sides of the recording/reproducing device 05 to the outside over the inner and outer peripheries. This recording/reproducing opening is attached to the outer side of the cartridge 101, and extends from a position where the recording/reproducing opening is closed to a position where it is opened, in the insertion direction of this disk cartridge 103 as indicated by arrow d in FIG. The shutter member 106 can be opened and closed by a shutter member 106 that is slidable. This shutter member 106 is biased by a biasing spring 107 disposed within the cartridge 101 toward a position where the recording/reproducing opening is closed, as shown by arrow a in FIG. .

Further, a locking member 108 is provided in the cartridge 101 to lock the shutter member 106 when the shutter member 106 is in a position to close the recording/reproducing opening. This locking member 108 is partially bent outward via a lock release slint 109 provided on the side surface of the cartridge 101.

Further, the cartridge 101 extends outward through a chucking hole 110 provided at the center of the magneto-optical disk 105. It has an opening 111 for chucking. A pair of positioning holes 119120 are provided at the corner of the cartridge 101 on the side where the chucking opening 111 is provided. Note that an iron piece is attached to the periphery of the chunking hole 110 so as to be attracted to a magnet of a first rotation driving means, which will be described later.

As shown in FIGS. 9 and 10, the second disk cartridge 104 is a first optical disk on which an information signal is written in advance so that the information signal can be read. A green optical disc 112 is housed in the cartridge 102.

The green optical disc 112 described above includes a signal recording layer made of an aluminum thin film or the like, and a base material layer made of a material such as polycarbonate, which holds the signal recording layer. This green optical disc 112 can read the information signal written in the signal recording layer by irradiating the signal recording layer with a laser beam and detecting the amount of reflected light.

The green optical disc 112 is rotatably housed in the cartridge 102, which has a substantially rectangular housing shape. This cartridge 102 has a playback opening that exposes one surface side, which is a part of the signal reading surface, of the green optical disc 112 to the outside, covering the inner and outer peripheries. This playback opening is attached to the outside of the cartridge 102, and slides in the insertion direction of the disk cartridge 104, as indicated by arrow e in FIG. 9, from a position where the playback opening is closed to a position where it is opened. It can be opened and closed by a movable shutter member 113.

This shutter member 113 is biased by a biasing spring 114 disposed within the cartridge 102 toward a position where the reproduction opening is closed, as indicated by the arrow in FIG. Further, a lock member 115 is provided in the cartridge 102 to lock the shutter member 113 when the shutter member 113 is in a position to close the reproduction opening.

A portion of the locking member 115 is exposed to the outside through a lock release slit 116 provided on the side surface of the cartridge 102.

Further, the cartridge 102 has a chuffing opening 118 that allows the chunking hole 117 provided at the center of the green optical disc 112 to face outward. A pair of positioning holes 121 and 122 are provided at the corner of the cartridge 102 on the side where the chucking opening 118 is provided. Note that an iron piece is attached to the periphery of the chucking hole 117 so as to be attracted to a magnet of a first rotation driving means, which will be described later.

The first optical disc, that is, the magneto-optical disc 105 and the green optical disc 112, are configured to have a predetermined diameter of about 64 mm and a predetermined thickness of about 1.2 m. In addition, each of the above cartridges 101, 10
2 has a side of about 68mm to 72mm and a thickness of 5mm.
It is configured to have predetermined external dimensions of about mm.

The second optical disc is an optical disc configured similarly to the magneto-optical disc 105 or the green optical disc 112 described above. This second optical disc is 1
A predetermined diameter of about 20nua or 80n+m and 1.2
It is configured to have a predetermined thickness comparable to that of a picture.

(G-2) Configuration of first and second rotation drive means and optical pickup device (FIGS. 1 and 2) The optical disc recording and/or reproducing device according to the present invention is shown in FIGS. 1 and 2. As shown, it includes a chassis 1. This chassis 1 is supported within an outer casing (not shown) via a damper 1a.

The damper 1a is formed of a flexible material such as rubber into a hollow, substantially cylindrical shape, and is filled with a fluid material having an appropriate viscosity. This damper 1a
prevents the propagation of vibrations, shocks, etc. applied from the outside via the outer casing to each mechanical component constituting the optical disc recording and/or reproducing device disposed on the chassis 1. Therefore, they are provided at a plurality of predetermined locations in consideration of the weight balance of the chassis 1 and each mechanical component.

On the chassis 1, there is provided a first rotary drive means 2, on which the magneto-optical disk 105 of the first disk cartridge 103 or the recorded optical disk 112 of the second disk cartridge 104 is mounted, and A second rotary drive means 3 is provided.

The first rotation drive means 2 includes a first spindle motor 4 and a first disk table 5 attached to the drive shaft of the first spindle motor 4. The drive shaft of the first spindle motor 4 is connected to the chassis 1.
It is almost perpendicular to the When the magneto-optical disk 105 or the recorded optical disk 112 is placed on the first disk table 5, the tapered protrusion 5a provided at the center is inserted into the chucking hole 110117.
Insert and engage. Further, the first disk table 5 has a mag 7 that attracts an iron piece attached to the periphery of the chucking hole 110117.

The second rotational drive means 3 includes a second spindle motor 6 and a second disk table 7 attached to the drive shaft of the second spindle motor 6. The drive shaft of this second spindle motor 6 is connected to the chassis 1.
It is approximately perpendicular to. When the second optical disc is placed on the second disc table 7, the tapered protrusion 7a provided at the center is fitted into the chucking hole provided at the center of the second optical disc. Match.

This second rotational drive means makes the drive shaft of the second spindle motor 6 parallel to the drive shaft of the first spindle motor 4, and the drive shaft of the second disk table 7.
is located on the same plane as the first disk table 5. That is, the magneto-optical disk 105 or the recorded optical disk 112 placed on the first disk table 5 and the second optical disk placed on the second disk table 7 are on the same plane. located above.

Further, the first and second spindle motors 46 are connected to the magneto-optical disk 105 or the recorded optical disk 112 placed on the first disk table, and to the magneto-optical disk 105 or the recorded optical disk 112 placed on the second disk table 7. For example, at least 95 mm to such an extent that the second optical disk does not come into contact with the
They are arranged at predetermined intervals of about n or more.

Then, on the chassis l, as shown in FIG.
From a position near the first spindle motor 4, the second
As shown in the figure, an optical pickup device 8 is disposed so as to be movable over a section near the second spindle motor 6.

The optical pink-up device 8 has an optical system block made of die-cast aluminum, synthetic resin, etc., and includes a light source such as a semiconductor laser, a photodetector such as a photodiode, and a photodetector such as a photodiode. It is constructed by incorporating a plurality of predetermined optical devices. This optical big amplifier device 8 is configured to condense a luminous flux emitted from the light source through an objective lens 8a and emit it.

Further, the optical pickup device 8 is configured so that the light reflected by the optical disk of the light beam emitted through the objective lens 8a is detected by the photodetector again through the objective lens 8a.

This optical pickup device 8 includes the optical system block section (a guide shaft 9 provided on the chassis 1 and a support shirt disposed parallel to the guide shaft 9).
10, and is movable along the chassis 1 in a direction from the first spindle motor 4 to the second spindle motor 6, as shown by an arrow T in FIG. .

The optical pick amplifier device 8 also connects the objective lens 8a to the magneto-optical disk 105 placed on the first disk table 5 or the recorded optical disk 11.
2 or the second optical disc placed on the second disc table 7 so as to face the surface of the second optical disc that faces the chassis 1 . That is, this optical big amplifier device 8 places the objective lens 8a on the magneto-optical disk 105 placed on the first disk table 5, the recorded optical disk 112, or the second disk full 7. The above second
The inner and outer circumferences of the optical disc can be opposed to each other.

A magnetic head device 12 is attached to the optical pickup device 8 via a magnetic head support arm 11. The magnetic head support arm 11 is an arm formed in a substantially U-shape, and has one end attached to the optical pickup device 8 and the other end, which is a free end, to which the magnetic head device 12 is attached. There is. This magnetic head device 12 is supported so as to face the objective lens 8a. Further, the magnetic head support arm 11
has a rotating part 13 in the middle. This rotating part 13
rotates the other end of the magnetic head support arm 11 so that the magnetic henode device 12 attached to the other end of the magnetic head support arm 11 can move toward and away from the objective lens 8a. It is possible to move. A torsion coil spring 14 is attached to this rotating portion 13. The torsion coil spring 14 rotates the other end of the magnetic head support arm 11 in a direction in which the magnetic head device 12 approaches the objective lens 8a, as shown by arrow C in FIG. It is strong.

A magnetic head lifting arm 15 is provided on the chassis 1 for rotating the other end of the magnetic head supporting arm 11. As shown in FIG. The magnetic head elevating arm 15 extends along the moving direction of the optical pickup device 8, and is interposed between one end and the other end of the magnetic henode support arm 11, which are opposed to each other. Further, the magnetic head lifting arm 15 is operable to move toward and away from the chassis 1.

That is, the magnetic head lifting arm 15 is urged by the tension coil spring 16 to move away from the chassis 1 as indicated by the arrow in FIG. has been done. The magnetic head lifting arm 15 is moved in a direction opposite to the direction indicated by the arrow in FIG. direction, against the biasing force of the tension coil spring 16.

The magnetic head lifting arm 15 is moved by the biasing force of the tension coil spring 16 to the magnetic head supporting arm 11.
When the magnetic head support arm 11 is moved in the direction approaching the other end, the magnetic head support arm 1 comes into contact with the other end of the magnetic head support arm 11 and resists the biasing force of the switching coil spring 14.
1 is rotated in a direction away from the optical pickup device 8.

Even when the optical pink-up device 8 is moved along the guide shaft 9, the magnetic hent device 12
It is moved together with the magnetic head support arm 11 so as to always face the objective lens 8a, and can be moved toward and away from the objective lens 8a by the magnetic head lifting arm I5.

(G-3) Configuration of disk cartridge loading mechanism (FIGS. 1 to 4) Then, on the chassis 1, the first or second disk is mounted corresponding to the first rotational drive means 2. A disk cartridge loading mechanism 17 for loading the cartridges 103 and 104 onto the first rotation drive means 2 is configured.

As shown in FIGS. 1 to 4, the disk cartridge loading mechanism 17 includes a pair of side plates protruding from the chassis L and facing each other with the first disk table 5 in between. 19.20. These side plate portions 1920 are provided in a direction perpendicular to the guide shaft 9.

A cartridge holder 21 into which the first or second disk cartridge 103 or 104 is inserted is disposed between these side plate portions 19 and 20 so as to be above the first disk table 5. It is set up.

This cartridge holder 21 is the same as the cartridge 10.
1 and 102 are opened at the front side, and the lower surface facing the chassis 1 and the upper surface facing the lower surface are open.

A pair of support shafts 22, 23, 24, and 25 are protruded from both sides of the cartridge holder 21 facing the side plates 19, 20, respectively. Shirt 22.23 provided on one side opposite to one side plate 19 of the cartridge boulder 21 is a guide slit h26, 2 provided on the one side plate 19.
7, there is inset guarantee. Further, the shirts 24 and 25 provided on the other side opposite to the other side plate 20 of the cartridge holder 21 are connected to the other side plate 20 of the cartridge holder 21.
The guide slits 28 and 29 are fitted and engaged in correspondence with the guide slits 28 and 29 provided in the guide slits 28 and 29, respectively.

In this manner, the cartridge holder is configured such that the support shafts 22, 23, 24, 25 are fitted into and secured to the guide slits 26, 27, 28, 29, and the pair of side plate portions 19. 20. Each of the above guide slits 26, 27, 28, 29 is
Each of them is formed in an L-shape having a portion parallel to the chassis 1 and a portion bent from the rear side of this portion toward the chassis I side. That is, the cartridge holder 21, as shown by arrow E in FIG.
move to the rear side along the chassis l, and then the third
As shown by arrow F in the figure, it is movably supported so as to move in a direction approaching the chassis 1.

The cartridge holder 21 and each side plate portion 1
9. A pair of tension coil springs 30,
31 is hung. These tension coil springs 30
．． 31, the cartridge holder 2 is arranged so as to be substantially perpendicular to the chassis 1 when the cartridge holder 21 is located on the front side, as shown in FIG.
It is attached approximately at the center of both sides of the 1. Therefore, when the cartridge holder 21 is operated to move rearward, the tension coils 230.31 force the cartridge holder 21 to move diagonally downward and forward, and the support shafts 22, 23, 24, 25 move forward and downward. guide slit 26,
27, 28, and 29, it is moved in a direction approaching the chassis 1, as shown in FIG.

Further, on the rear side of the cartridge holder 21, a magnetic head lifting/lowering operation piece 39 is provided which faces the other free end side of the magnetic head support arm 11 from the chassis 1 side. When the cartridge holder 21 is at a position apart from the chassis 1, the magnetic head lifting/lowering operation piece 39 moves the other end of the magnetic head support arm 11 against the biasing force of the torsion coil spring 14. Then, it is held in a rotated position in a direction away from the chassis 1.

A shutter member release pin 40 is protrudingly provided on the inner side of the cartridge holder 21 at a position corresponding to the side where the shutter members 106 and 113 of each of the disk cartridges 103 and 104 are attached. There is. This shutter member opening bin 40 is attached to the disk cartridge 103, 104 in the cartridge holder 21.
When the shutter opening slit 10 is inserted, the shutter opening slit 10 is inserted.
9.116, abuts against the lock member 108115, and elastically displaces the lock members 108, 115 to release the lock from the shutter member 106113.

Then, the chassis l and the cartridge holder 21
An eject plate 32 is disposed between the two. This eject plate 32 is disposed so as to be slidable in the front and back direction on the chassis 1, and is operated by a tension coil 233 stretched between the front part of the eject plate 32 and the chassis 1. It is urged to move forward as indicated by arrow G in Figure 3. Further, a pressing operation section 34 is provided at the front end of the eject plate 32. The eject plate 32 is moved rearward as indicated by the arrow in FIG. 3 against the biasing force of the tension coil spring 33 by pressing the pressing operation section 34 with a finger.

A pair of eject cams 35, 36, 37, and 38 are provided on both sides of the ejector 1-Fi 32 so as to extend along the respective side plate portions 19, 20, respectively. These eject cams 3536, 37, and 38 each have an inclined cam portion whose rear side approaches the chassis 1 rather than the front side, and when the eject plate 32 is moved rearward, each of the eject cams 3536, 37, and Gaito Slint 26, 27
．． 28. Each support shaft 22. located at the rear end of 29.
23, 24, and 25 from the chassis 1 side.

In the disk cartridge loading mechanism 17 configured in this way, as shown by arrow d in FIG.
Disk cartridge 1 is placed in the cartridge holder 21 above.
03, 104 is inserted, first, the shutter member 106 is opened by the shutter member opening operation pin 40.
, 113 are moved relative to the cartridges 101, 102, and the recording/reproducing opening or the reproducing opening is opened. Then, the cartridge 101
．． 102 is further inserted into the cartridge holder 21, the cartridge holder 21
Pressing operation is performed by the cartridges 101 and 102,
It moves rearward as shown by arrow E in FIG. Then, the cartridge holder 21 moves in a direction approaching the chassis 1, as shown by arrow F in FIG. 3, due to the urging force of the pair of tension coil springs 30, 31. At this time, as shown in FIG. 4, the first disk table 5 has the chucking opening 111.
118 into the cartridge 101, 102, and holds the magneto-optical disk 105 or the recorded optical disk 112 by fitting the tapered protrusion 5a into the chucking hole 110, 117.

Further, the cartridges 101 and 102 are inserted into the positioning holes 119, 120, 121 and 122 of the chassis 1.
It is positioned and held by fitting a positioning pin (not shown) that projects above.

In this state, the magneto-optical disk 105 or the recorded optical disk 112 is moved by the first spindle motor 4.
Therefore, it can be rotated together with the first disk table 5.

Then, the optical pickup device 8 is moved to the side of the first rotation driving means 2, and the objective lens 8
a is positioned to face the magneto-optical disk 105 or the recorded optical disk 112. Further, in the magnetic head device 12, when the cartridge holder 21 is moved toward the chassis I, the magnetic head device display operation piece 39 is moved to the magnetic head support arm 11.
Since it moves in a direction away from the other end, if the magnetic head mounting arm 15 is moved toward the chassis 1, the torsion coil spring 14 will move as shown by arrow C in FIG. The magneto-optical disk 10 is
5 with a predetermined contact pressure.

The magnetic head lifting arm 15 is moved toward the chassis I when the optical disc recording and/or reproducing apparatus is placed in a recording mode. In addition, in this optical disc recording and/or reproducing apparatus, whether the inserted disc cartridge is the first disc cartridge 103 or the second disc cartridge 104 is determined whether the inserted disc cartridge is the first disc cartridge 103 or the second disc cartridge 104. It is determined by the presence or absence of a discriminating notch 101a provided in the cartridge 101, and the recording mode can be set only when the first disk cartridge 103 is installed.

Then, the magneto-optical disk 105 or the recorded optical disk 112 is rotated, and the optical pink-up device 8 is moved around the inner and outer peripheries of the magneto-optical disk 105 or the recorded optical disk 112, whereby the optical Writing or successive writing of information signals to the magnetic disk 105, or the above-mentioned recorded optical disk 11
The information signal from 2 is read out. That is, in the recording mode, the magnetic hennodic device 12 is brought into sliding contact with the magneto-optical disk 105 with a predetermined contact pressure, and a laser beam is irradiated by the optical pink amplifier device 8 to Information signals are written to the magneto-optical disk 105. In the reproduction mode, the optical pickup device 8 irradiates the magneto-optical disk 105 or the recorded optical disk 112 with a laser beam,
05 or the information signal is read from the recorded optical disc 112.

And this disk cartridge loading mechanism 1
In order to eject the disk cartridge installed in the disc cartridge 7, the pressing operation section 34 is pressed with a finger or the like to move the eject plate 32 to the rear side against the biasing force of the bow tension coil spring 33. Manipulate. Then, each of the eject cams 35, 36, 37, 38 comes into contact with each of the support shafts 22, 23, 24, 25 from the shear 1 side, and these support shafts 22, 23, 24
．． 25, the cartridge holder 21 is moved in a direction away from the chassis 1. When the cartridge holder 21 is moved in a direction away from the chassis 1, the cartridge holder 21 is moved by the urging force of the pair of tension coil springs 30, 31.
The disk cartridge is moved forward along the chassis I in the direction of arrow E in FIG. 3, and the disk cartridge is ejected to the outside of an outer casing (not shown).

(G-4) Disc loading I! Groove structure (Fig. 1, Fig. 2, Fig. 5, and Fig. 6) On the chassis 1,
A disk loading mechanism 18 for loading the second optical disk onto the second rotational drive means 3 is configured to correspond to the second rotational drive means 3 .

As shown in FIG. 1, FIG. 2, FIG. 5, and FIG. are doing. These guide wall portions 41 and 42 are provided to protrude perpendicularly to the chassis l, respectively, and are provided in a direction perpendicular to the guide shaft 9 that supports the optical pickup device 8.

The disk tray 43 is disposed between the guide walls 41 and 42 so as to be slidable in the front and rear directions as indicated by arrows in FIG.

This disk tray 43 is formed into a substantially rectangular shape, and concentrically formed circular recesses 66 and 67 having a plurality of diameters are formed on the upper surface thereof, in which the second optical disks are placed and positioned. These circular recesses 66 and 67 correspond to various outer diameters of the second optical disc, that is,
For example, it is formed with a diameter of 120 mm and a diameter of 80 ma+. The disc tray 43 also has a first opening 68 corresponding to the movement path of the optical pick amplifier device 8 along the guide shaft 9, and a second opening 68 formed in the center in the front-rear direction. An opening 69 is formed. These openings 68 and 69 correspond to the second disc table 7 when the disc tray 43 is in the rear position, which is the position where the second optical disc is mounted on the second disc table 7. It is an L-shaped opening that connects at the position where it connects.

Each of the guide walls 41 and 42 of the disc tray 43
A pair of support bins 44,
45, 46, and 47 are provided protrudingly. Each of the support pins 44, 45, 4 is attached to the guide wall portions 41, 42.
6. Corresponding to the movement locus of 47, the support slits 48, 4
9, 50, 51 are provided in the direction along the chassis 1. Each of the above support pins 44, 45, 46, 47 is
The disc tray 43 is slidably supported by being fitted into each of the support slits 48, 49, 50, and 51.

Note that among the support pins 44, 45, 46, and 47, the support pin 48.50 corresponding to the support pin 44.46 provided on the front side is a
As shown in the figure, the front side is open so that the support pins 44, 46 are inserted only when the support pins 44, 46 are moved to the rear side, which is the inner side of an outer casing (not shown).

Each of the support slits 48, 49.5051 is
The rear end side is a bent portion that is inclined in a direction approaching the chassis 1. That is, the disk tray 43 is slidable in the front-rear direction along the chassis 1, as shown by arrow I in FIG.
8, 49.50.51 along the bend on the rear end side.
As shown by arrow J in the figure, it is movable in an oblique direction approaching the chassis 1.

At positions on both sides of the disk tray 43 on the front side of the chassis 1, a pair of loading motors 52.
53 is installed. These loading motors 5
The drive shafts 52a53a of 253 are perpendicular to the rack 1 and extend on both sides of the disc tray 43. Each of the drive shafts 52a, 53
A sloped pinion gear 5455 is attached to the tip side of each a. These slope pinion gears 54.55
are engaged with inclined rack gears 56 and 57 formed in pairs on both sides of the disk tray 43.

That is, the disk tray 43 is rotated by each of the loading motors 52 and 53, so that the disk tray 43 is moved to the fifth position.
It is moved in the forward and backward directions indicated by the arrows in the figure. Further, the disk tray 43 is connected to each loading motor 5.
2.53, as shown in FIG. 6, when it is in the rear position, it approaches the chassis 1,
It is operated to move backward and diagonally downward as indicated by arrow J in FIG.

When the disc tray 43 is moved forward by the loading motors 52 and 53 when it is in the rear position shown in the sixth episode, it is first moved away from the chassis 1. , is moved obliquely upward and forward in the direction of arrow J in FIG. 5, and then moved forward along the chassis 1 in the direction of arrow 1 in FIG. At this time, the driving force of each of the loading motors 52, 53 is applied to the disc tray 4 by the slope pinion gear 5455 and the slope rack gear 56, 57.
3, it acts to push up this disk tray 43 diagonally upward.

The guide walls 41 and 42 are provided with support pins 44 and 45 in order to allow the disk tray 43 to be moved parallel to the chassis l.
．． A pair of retaining members 5B, 59.60°61 are attached to correspond to 46.47, respectively. These engaging members 58, 59, 60, 61 are connected to the rotation shaft 5, respectively.
8a, 59a, 60a, and 61a are rotatably attached to the guide wall portions 41 and 42 on the proximal end side, and retaining slits 58b and 5 open on the distal side, respectively.
9b, 60b, and 61b.

The retaining members 58 and 59 attached to one guide wall portion 41 are connected to each other by a connecting link 62 so as to maintain the same angular position. Furthermore, these engaging members 58 and 59 are connected to the connecting link 62.
is biased by a tension coil spring 64 stretched between the chassis 1 and the engagement slit 5.
8b.

It is positioned with 59b facing forward. Similarly, the engagement member 6 attached to the other guide wall 42
0.61 are connected to each other by a connecting link 63 so as to maintain the same angular position, and are biased by a tension coil spring 65 stretched between the connecting link 63 and the chassis 1. , is positioned with the engaging slits 60b, 61b facing forward.

These engaging members 58, 59, 60, 61 are such that when the disc tray 43 is moved rearward, each of the supporting bins 44, 45, 46, 47 is inserted into each of the engaging slits 58b, 59b, 60b61b. Correspondingly inset. Then, when the disk tray 43 moves in the direction approaching the chassis 1, each of the separate coil wings 646
Each of the support pins 44 is rotated against the urging force of 5.
．． 45, 46, and 47 are each of the above support slits 4849.5
0.51 so that it moves smoothly.

Furthermore, a chucking member 70 is disposed above the second disk table 7.

This chucking member 70 is moved as shown by the arrow in FIG. 6 when the disk tray 43 is moved rearward in conjunction with the movement operation of the disk tray 43 by a movement operation mechanism (not shown). Then, the second disc table 7 is moved so as to be pressed against the second disc table 7. This chucking member 70 is configured to hold the second optical disc when the second optical disc is placed on the second disc table.
When the second optical disc 71 is moved to the side of the disc table 7, it works together with the second disc table 7 to sandwich the second optical disc 71, as shown in FIG. It is held on the second disk table 7.

When the chucking member 70 is rotated by the second disc table 7 or the second spindle motor 6, the chucking member 70 is rotated together with the second disc table 7 and the second optical disc 71. .

In the disc loading mechanism 18 configured as described above, in order to load the second optical disc onto the second disc table 7, first, the disc tray 43 is rotated by rotating the pair of loading motors 52 and 53. By driving it, it is moved forward and projected to the outside of the outer casing. Then, the second optical disk is placed so as to fit into the side of the circular recess 66, 67 that has a matching outer diameter.

Next, by rotationally driving the pair of loading motors 52 and 53, the disk tray 43 is moved rearward and housed in the outer casing. The disc tray 43 holds the second optical disc and the second optical disc.
When the disk tray 43 reaches a position substantially corresponding to the disk table 7 , the disk tray 43 moves diagonally downward so as to approach the chassis 1 . This disk tray 4
3 in the direction approaching the chassis 1,
The second optical disc is placed on the second disc table 7, as shown in FIG. The second disc table 7 is provided at the center of the second optical disc and holds the second optical disc by fitting the tapered protrusion 7a into the chucking light. Further, the chucking member 70 is moved toward the second disc table 7 and works together with the second disc table 7 to clamp the second optical disc 71. The disc tray 43 is moved toward the chassis I to a position where it does not come into contact with the second optical disc 71 placed on the second disc table 7.

In this state, the second optical disc can be rotated together with the second disc table 7 and the chucking member 70 by the second spindle motor 6.

Then, the optical pink-up device 8 is operated to move along the guide shaft 9, and as shown in FIG. The objective lens 8a is positioned to face the objective lens 71.

Further, when the magnetic head elevating arm 15 is operated to move toward the chassis 1 side by putting the optical disc recording and/or reproducing apparatus into the recording mode, the magnetic head device 12 is moved as shown by arrow C in FIG. As shown, the biasing force of the torsion coil spring 14 causes it to come into contact with the second optical disc 71 with a predetermined contact pressure.

Then, the second optical disc 71 is rotated and the optical pickup device 8 is moved across the inner and outer peripheries of the second light 71, thereby writing or writing information signals to the second optical disc 71. Reading is performed. That is, in the recording mode, the magnetic henode device 12 is brought into sliding contact with the second optical disk 71 with a predetermined contact pressure, and a laser beam is irradiated by the optical pink-up device 8 to Information signals are written to the second optical disc 71.

In addition, in the playback mode, the second optical disc 7
1 is irradiated with a laser beam by the optical pink-up device 8, and information signals are read from the second optical disc 71.

To take out the second optical disc loaded in the disc loading mechanism 18, the pair of loading motors 52 and 53 are driven to rotate in a direction that moves the disc tray 43 forward. Then, the disk tray 43 is moved forward and diagonally upward so as to be separated from the chassis 1. At this time, the chucking member 70 is separated from the second disk table 7. The disc tray 43 lifts and holds the second optical disc 71 placed on the second disc table 7 from the chassis 1 side, and then moves it to the front side.

When the disc tray 43 is moved forward, the second optical disc 71 is moved to the outside of the outer casing to a position where it can be taken out.

H0 Effects of the Invention As described above, in the optical disc recording and/or reproducing apparatus according to the present invention, the section extending from the vicinity of the first rotational drive means to the vicinity of the second rotational drive means is arranged to be movably operable. The provided optical pink amplifier device includes a first optical disc mounted on the first rotational drive means by a disc cartridge loading mechanism and a first optical disc mounted on the second rotational drive means by the disc loading mechanism. Information signals are written to and/or read from a second optical disc that is on the same surface as the optical disc.

Therefore, in this optical disc recording and/or reproducing apparatus, an information signal for each of the first and second optical discs is sent using the optical pickup device (-) while the first and second optical discs are mounted on their corresponding rotation drive means. can be recorded and/or played back.

That is, the present invention provides information signals for both an optical disk that is housed in a cartridge and is mounted on the rotational drive means, and an optical disk that is mounted on the rotational drive means by itself, without complicating the configuration. It is possible to provide an optical disc recording and/or reproducing device that can write and/or read data.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the essential parts of the optical disc recording and/or reproducing apparatus according to the present invention, with the optical pickup device located near the first rotation drive means. FIG. 2 is a perspective view showing the essential parts of the optical disc recording and/or reproducing apparatus, with the optical pickup device located near the second rotational drive means. FIG. 3 is a side view of a main part showing the configuration of a disc cartridge loading mechanism constituting the optical disc recording and/or reproducing apparatus, and FIG. 4 is a side view of a main part showing a state in which the loading of the disc cartridge loading mechanism is completed. be. FIG. 5 is a side view of a main part showing the configuration of a disc loading mechanism constituting the optical disc recording and/or reproducing apparatus, and FIG. 6 is a side view of a main part showing a state in which the disc loading mechanism has completed loading. FIG. 7 is a perspective view showing the shape of the top side of the first disk cartridge used in the optical disk recording and/or reproducing apparatus, and FIG. 8 is a perspective view showing the shape of the bottom side of the first disk cartridge. It is a diagram. FIG. 9 is a perspective view showing the shape of the top side of the second disk cartridge used in the optical disk recording and/or reproducing apparatus, and FIG. 10 is a perspective view showing the shape of the bottom side of the second disk cartridge. It is a diagram. l..Chassis 2..First rotational drive means 3..Second rotational drive means 8..Optical pickup device 17..Disc cartridge loading mechanism 18.
・Disk loading mechanism 71...Second optical disk

Claims (1)

[Scope of Claims] A first optical disc that is housed in a cartridge and constitutes a disc cartridge together with the cartridge is mounted, and a first optical disc that holds and rotates the first optical disc is mounted.
a rotational drive means, and a second optical disc is mounted on the same plane as the first optical disc so that the second optical disc does not come into contact with the first optical disc mounted on the first rotational drive means. a second rotary drive means for holding and rotating the first optical disc; a disc cartridge loading mechanism for loading the first optical disc onto the first rotary drive means; and a disc cartridge loading mechanism for loading the second optical disc on the first rotary drive means; and an optical pickup device disposed so as to be operable to move in a section extending from the vicinity of the first rotational drive means to the vicinity of the second rotational drive means, the optical pickup device An optical disc recording and/or reproducing apparatus that writes and/or reads information signals to and from the first optical disc and the second optical disc.