JPH09212970A - Optical disc apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disc apparatus which can comprise a plurality of CD-ROM drives within the limited size. SOLUTION: A first and a second disc drive units 4a, 4b for reproducing the signals by rotating and driving an optical disc while it is clamped by a clamping device are stacked and accommodated within a single cabinet 1 and the optical disc is loaded or unloaded from an aperture 1b at the front side of the cabinet 1. Moreover, positions of the first and second disc drive units 4a, 4b are deviated in the direction for loading and unloading the optical disc and the optical disc 9a3 clamped by the first disc driving unit 4a and the optical disc clamped by the second disc driving unit 4b are disposed in the overlap condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc device for reproducing a compact disc.

[0002]

2. Description of the Related Art With the spread of personal computers,
CD-ROM drives as their peripheral devices have also rapidly spread. Recently, a CD-ROM drive is often installed in the main body of a personal computer as a standard.

In many desktop personal computers, various disk drives including the above built-in CD-ROM drive are housed and mounted in a housing portion called a 5-inch bay. The opening of this storage part has a standard size called 5 inch half height, and the equipment stored here is 146 m wide.
m and a height of 41.3 mm or less.

As an example of the usage pattern of the user of the personal computer, there is a usage pattern of playing a game while listening to music. In this case, if the personal computer has only one built-in CD-ROM drive, an external CD-ROM drive is added to the game software CD-ROM [hereinafter, the CD-ROM will be referred to as an optical disc]. ] In the built-in CD-ROM drive and the music CD in the external CD-ROM drive for playback.

[0005]

Therefore, the built-in CD-RO is used.
External CD-ROM with two M drives
It may be possible to eliminate the need for a drive, but in the conventional technology, two CD-ROs were installed in the opening of a 5-inch half height.
It is difficult to incorporate the M drive.

Further, if one of the built-in CD-ROM drives is to have a disc changer function, the external dimensions of the apparatus, especially the height dimension, inevitably increase, and the size of the two-inch CD-ROM drive in the 5-inch bay increases. It becomes difficult to embed the base.

The present invention allows a plurality of CDs to be recorded within a limited size.
An object of the present invention is to provide an optical disk device capable of incorporating a ROM drive.

[0008]

According to a first aspect of the present invention, there is provided an optical disc device in which a first casing and a second disc driving unit for rotating and reproducing while sandwiching an optical disc by a clamp device are stacked to form a single housing. And the optical disc is configured to be loaded and unloaded from the front surface of the housing, and the positions of the first and second disc drive units inside the housing are arranged to be offset from each other in the loading / unloading direction of the optical disk. It is characterized by having done.

According to a second aspect of the present invention, there is provided the optical disc device according to the first aspect, wherein the positions of the first and second disc drive units in the housing in the direction of loading / unloading the optical disc are
The optical disk held by the first disk drive unit and the optical disk held by the second disk drive unit are arranged so as to overlap with each other.

According to a third aspect of the present invention, in the optical disc drive according to the first and second aspects, one of the first and second disc drive units is set in the disc storage portion from the disc storage portion at the standby position. One of the multiple sub-trays is selectively pulled out to the loading position, and the optical disk set in that sub-tray is clamped by the clamp device in conjunction with the completion of pulling out the sub-tray to the loading position. While being driven for rotation while being used for reproduction, the other of the first and second disk drive units is pulled in from the outside of the housing without providing a standby position like the one disk drive unit. It is characterized in that the optical disk is held at a position where it can be held by a clamp device.

According to a fourth aspect of the present invention, in the optical disc device according to the first and second aspects, the first optical disc drive unit disposed above the first and second disc drive units is set to the standby position. From the disc storage section, one of the sub-trays set in the disc storage section is selectively pulled out to the loading position, and the sub-tray is interlocked with completion of pulling out the sub-tray to the loading position. The second optical disc drive unit is configured so as to be rotationally driven for reproduction while being clamped by a clamp device, and the second optical disc drive unit is not provided with a standby position like the one optical disc drive unit. It is characterized in that the optical disk pulled in from the outside is held at a position where it can be held by a clamp device. .

An optical disk device according to a fifth aspect is the optical disk device according to the fourth aspect, wherein the second disk drive unit is pulled from the outside of the housing to a position where it can be clamped by a clamp device.
It is characterized in that the optical disc set in the tray is configured to be rotationally driven while being clamped by a clamp device for reproduction.

An optical disk device according to a sixth aspect of the present invention is the optical disk device according to the fifth aspect, wherein the power transmission path of the drive source is located at the disk storage portion of the first disk drive unit outside the housing and in the standby position inside the housing. Switching means is provided for switching between a first switching state for driving and a second switching state for driving the tray of the second disk drive unit to an external position of the housing and a reproduction position inside the housing. And

According to a seventh aspect of the present invention, there is provided the optical disc apparatus according to the sixth aspect, wherein the switching means has the disc of the first disc drive unit at an intermediate position in the middle of switching from the first switching state to the second switching state. It is characterized in that the stopper mechanism is configured so that both the storage portion and the tray of the second disk drive unit are located inside the housing.

According to an eighth aspect of the present invention, in the optical disc device according to the sixth and seventh aspects, the front panel of the housing has an opening through which the disc storage portion of the first disc drive unit and the tray of the second disc drive unit come in and out. For opening and closing a portion of the opening where the disk storage portion comes in and out.
Is provided, and a second opening / closing lid for opening / closing a portion of the opening where the tray comes in and out is provided.

According to a ninth aspect of the present invention, there is provided the optical disk device according to the eighth aspect, wherein the rotation support shaft of the first opening / closing lid and the rotation support shaft of the second opening / closing lid are made common.

[0017]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. As shown in FIGS. 1 and 2, the front panel 1a of the housing 1 is provided with an opening 1b and first and second opening / closing lids 2a and 2b for closing the opening 1b. The first and second opening / closing lids 2a, 2b are pivotally supported on the front panel 1a by a common pivot shaft 3, and the first and second opening / closing lids 2a, 2b are provided with different springs (not shown). ) Is urged to the closed position.

As shown in FIGS. 1 and 3, the housing 1 contains a first disk drive unit 4a with a disk changer function and a second disk drive unit 4b without a disk changer function. First in 3
Lower clamp 5 of second disk drive unit 4a, 4b
The read head 6 and the read head traverse drive device 7 are shown, and the position P1 represents the reproduction position of the first disk drive unit 4a, and the position P2 represents the reproduction position of the second disk drive unit 4b.

The first disk drive unit 4a is attached to the chassis 8 so as to be higher than the second disk drive unit 4b, and the second disk drive unit 4b has an opening larger than that of the first disk drive unit 4a. It is attached to the chassis 8 close to the portion 1b. In FIG. 3, 9a is the first disk drive unit 4
A represents an optical disk reproduced by a, and 9b represents an optical disk reproduced by the second disk drive unit 4b, and the optical disks 9a and 9b are planarly overlapped.

First, the first disk drive unit 4a having a disk changer function will be described. As shown in FIGS. 1, 4 and 5, the first disk drive unit 4
a, three sub-trays 11a, 11b, 11c can be set in the main tray 10 as a disc storage part, and the optical disc 9a can be set in the guide recess 12 (see FIG. 6) of each sub-tray 11a, 11b, 11c. ₁ , 9a
₂ , 9a ₃ are set.

The first disk drive unit 4 shown in FIG.
a state, the main from the tray 10 is pulled out the top of the sub-tray 11c to the playback position P1 sandwiching the optical disc 9a ₃ in the lower clamp 5 and upper clamp 13, the optical disc 9a ₃ of the sub-tray 11c guide recess in the standby position The reading head 6 performs the reading by rotating and driving while being lifted from the bottom surface of 12.

In this way, another sub-tray 11a is being reproduced.
Optical disc 9a set in ₁ To play
When instructed, the optical disc 9a_Three Release the clamp on the
Disk 9a_Three Playback position after returning to the sub tray 11c.
P1 Pull out the sub tray 11c that is pulled out to the standby position.
Return to the in-tray 10 and then the target optical disk 9a₁But
Set to the height corresponding to the set sub tray 11a.
5 under the clamp, 13 above the clamp, 6 reading heads
And read head traverse drive 7 etc.
Then, pull out the sub tray 11a to the playback position P1 and
Optical disk 9a with lower part 5 of the pump and upper part of the clamp 13₁ Sandwich
Optical disk 9a₁ The guide recess of the sub-tray 11a
12 It is read by rotating it while lifting it from the bottom surface.
Reading is performed by the head 6. Optical disc 9a_Two 
The same applies to the case of playing.

As shown in FIG. 4, the main tray 10 has guide protrusions 14a, 14b formed inside the side walls 8a, 8b of the chassis 8 and elongated in the depth direction [direction of arrow A in FIG. 1].
Is movably supported by engaging with.

When the replacement of the optical disk 9a ₁ set on the sub-tray 11a is instructed, if the first disk drive unit 4a is reproducing, the optical disk and the sub-tray being reproduced are returned to the main tray 10 at the standby position. After that, as shown in FIG. 7 and FIG. 8, the sub-trays 11b and 11c which do not need to be replaced are left inside the housing 1, and the main tray 10 is on standby with the sub-tray 11a on which the optical disk 9a _{1 to} be replaced is set. The main tray 10 is driven from the position toward the outside of the housing 1 to move the first and second main trays.
The first and second opening / closing lids 2 by contacting the opening / closing lids 2a, 2b of the
Both a and 2b rotate to the open position against the biasing spring as shown in FIG.
Replace the optical disk set in a. The same applies when the optical disks 9a ₂ and 9a ₃ are exchanged.

Regarding the basic structure of the disk changer of the first disk drive unit 4a, the applicant of the present invention has previously filed Japanese Patent Application No. 7-252129.
Familiar with the issue.

The second disk drive unit 4b will be described. As shown in FIGS. 1 and 4, the second disc drive unit 4b has an optical disc 9b in the guide recess of the tray 15.
Is set.

The second disk drive unit 4 shown in FIG.
In the state of b, the optical disc 9b set on the tray 15 at the reproduction position P2 is clamped by the lower clamp 5 and the upper clamp 13, and the optical disc 9b is rotationally driven in a state of being lifted from the bottom surface of the guide concave portion of the tray 15, Reading is performed by the reading head 6.

As shown in FIG. 4, the tray 15 is located under the main tray 10, and the side wall 8 of the chassis 8 is provided.
It is movably supported by engaging with a guide protrusion 8c formed long in the depth direction inside a and a tip of a support body 16 attached to the bottom of the chassis 8.

When the replacement of the optical disk 9b set on the tray 15 is instructed, the lower clamp 5 and the upper clamp 1
With the optical disc 9b held by the optical disc 9b and the optical disc 9b placed on the tray 15, the tray 15 is driven from the reproduction position P2 toward the outside of the housing 1 as shown in FIG. At this time, the tray 15 serves as the second opening / closing lid 2.
The second opening / closing lid 2b is brought into contact with b and resists the biasing spring.
As shown in 0, the optical disc set in the tray 15 exposed to the outside of the housing 1 is replaced by rotating to the open position. In this case, the first opening / closing lid 2a is in the closed position, and when the tray 15 is retracted or retracted, the opening 1 of the front panel 1a is opened.
Compared with the case where b is fully opened, it is possible to protect from an act such that foreign matter is put into the inside of the housing 1 through an unnecessary opening.

11 to 14 show a power transmission system for selectively driving the rack 10a formed at the bottom of the main tray 10 and the rack 15a formed at the bottom of the tray 15. As shown in FIG.

11 to 13 show a case in which the main tray 10 is retracted and retracted. The first slide lever 17 is provided with an elongated hole 17a, and the first slide lever 17 is formed as shown in FIGS. 11 and 12 until the shaft 18 planted in the chassis 8 comes into contact with the front end of the elongated hole 17a. The lever 17 is pulled in the direction of arrow B. This sliding movement of the first slide lever 17 is transmitted to the second slide lever 19 slidably supported on the back surface of the chassis 8 via the bent piece 17b of the first slide lever 17. The second slide lever 19 is also provided with an elongated hole 19a.

A base end of an idler lever 21 is rotatably supported on a shaft 20 planted on the upper surface of the chassis 8. An intermediate gear 22 is rotatably attached to the shaft 20. An idler gear 21b that meshes with an intermediate gear 22 is rotatably attached to a shaft 21a that is planted at the tip of the idler lever 21.

A pin 21c is planted on the lower surface of the base end portion of the idler lever 21. The pin 21c is extended to the rear surface of the chassis 8 through a through hole 8d formed in the chassis 8 to The tip of 21c is the second slide lever 1
It is engaged with the slotted hole 19a of No. 9. As shown in FIG. 11, when the pin 21c is located at the front end of the elongated hole 19a of the second slide lever 19, the idler lever 21 moves toward the shaft 20.
The idler gear 21b engages with the rack 10a of the main tray 10 by rotating counterclockwise around.

In this state, the transmission gears 23a, 2a
When the intermediate gear 22 is rotated counterclockwise via 3b, the rack 10a of the main tray 10 is driven in the pull-out direction via the idler gear 21b. Further, when the intermediate gear 22 is rotated clockwise via the transmission gears 23a and 23b, the rack 10a of the main tray 10 is driven in the pulling direction via the idler gear 21b.
The first slide lever 17 and the transmission gear 23
The motor a is driven by the motor 24 shown in FIG.

Further, in the driving state of the main tray 10 which is shown in FIGS. 11 and 12, the stopper 21d formed by projecting from the tip of the idler lever 21 to the rack 15a side of the tray 15 has the tip of the tray 21a. The tray 15 is in contact with the front end of the rack 15a, and the tray 15 is locked so as not to move from the reproduction position P2.

Further, the tip of the convex portion 21e formed by projecting from the tip of the idler lever 21 to the rack 10a side of the main tray 10 is rotatably attached to the shaft 25 planted on the upper surface of the chassis 8. The stopper turning body 26 is in contact with the end of the guide surface 26a of the stopper turning body 26, and the stopper turning body 26 turns clockwise about the shaft 25 so that the tip protrusion 26b of the stopper turning body 26 has the main tray 1.
The rack rotating body 26 is in a state in which the stopper rotating body 26 does not prevent the main tray 10 from moving in and out.

FIG. 14 shows the case where the tray 15 is moved out and back. In this case, the shaft 18 planted in the chassis 8
The first slide lever 17 pushes out in the direction of arrow F until the abutting end contacts the rear end of the elongated hole 17a. When the first slide lever 17 is pushed out, the idler lever 21 is rotated clockwise about the shaft 20 to rotate the idler gear 21.
b meshes with the rack 15a of the tray 15.

In this state, the transmission gears 23a, 2a
When the intermediate gear 22 is rotated clockwise through the 3b, the rack 15 of the tray 15 is moved through the idler gear 21b.
a is driven in the pull-out direction. Also, the transmission gear 23
When the intermediate gear 22 is rotated counterclockwise via a and 23b, the rack 15a of the tray 15 is driven in the retracting direction via the idler gear 21b.

In addition, in the drive state of the tray 15 shown in FIG.
Of the rack 15a, and the stopper 2
1d is in a state where it does not prevent the tray 15 from moving in and out. On the other hand, the stopper rotating body 26 is the idler lever 21.
The stopper turning body 26 is pushed counterclockwise around the shaft 25 by being pushed by the tip of the convex portion 21e of the main body 21a, and the tip projection 26b moves on the trajectory of the rack 10a of the main tray 10 to move forward and backward. Is locked by a stopper rotating body 26 so as not to move from the standby position.

Further, in a neutral state where the idler gear 21b is moving from the state shown in FIG. 11 to the state shown in FIG. 14, the idler gear 21b is moved to the rack 10a.
Alternatively, there is a state in which it does not mesh with any of the racks 15a. In this neutral state, the main tray 10 is locked by the stopper rotating body 26 so as not to move from the standby position, and the tray 15 is locked by the stopper 21d so as not to move from the reproduction position P2.

As described above, two CD-ROMs are mounted on a single housing 1.
Since the ROM drive is built in and the positions of the first and second disk drive units 4a and 4b are offset from each other in the direction of inserting and removing the optical disk [direction of arrow A], the housing 1 has two CD-ROM drives built therein. The height of the case can be kept low. Further, since the optical disk held by the first disk drive unit and the optical disk held by the second disk drive unit are arranged to overlap with each other, the depth can be shortened, and one of them has a disk changer function. Despite being attached, I was able to fit in a standard size called a 5 inch half height [width 146 mm, height 41.3 mm].

Therefore, 5 of the personal computer
2 CD-ROM drives can be built in the inch and half height area, and game software can be recorded while playing the optical disk and listening to music without adding an external CD-ROM drive to the personal computer. It is possible to deal with a usage pattern in which a game is played by playing the recorded optical disc.

In the above embodiment, the CD installed above the two CD drives built in the housing 1 is used.
If the drive had a disc changer function that can set multiple optical discs, but both are CD drives that do not have a disc changer function, the CD drive placed above is the CD drive placed below without the disc changer function. The same can be carried out when is equipped with a disc changer function.

Further, in the above-mentioned embodiment, the main tray 10 that moves in and out of the housing 1 is described as a disk housing portion, but the disk housing portion is detachable from the housing 1 and is composed of a plurality of sub trays. It is also possible to adopt a so-called magazine form in which is set. The magazine in the optical disk device referred to here is the same as that described in Japanese Utility Model Publication No. 4-24515 or Japanese Utility Model Publication No. 6-30942. When the present invention is implemented in the form of this magazine, the magazine is mounted at the standby position by inserting the magazine into the housing 1 from the opening 1b of the front panel 1a against the bias of the spring. When the ejection of the magazine is instructed, the magazine is pushed out by the urging force of the spring.

[0045]

According to the first aspect of the invention, the first and second disk drive units for rotating and reproducing while sandwiching the optical disk by the clamp device are stacked and housed in a single housing, Since the optical disk is configured to be loaded and unloaded from the front surface of the housing, the positions of the first and second disk drive units inside the housing are arranged so as to be offset from each other in the loading / unloading direction of the optical disk. The height of the body can be reduced.

According to a second aspect of the present invention, in the first aspect, the position of the first and second disk drive units in the direction of loading and unloading the optical disk in the housing is set to the first position.
Since the optical disc held by the disc drive unit and the optical disc held by the second disc drive unit are arranged so as to overlap with each other, the height of the casing can be reduced and the dimension in the depth direction can be shortened. Can be achieved.

According to the configuration of claim 3, claim 1,
The one of the first and second disc drive units according to claim 2, wherein any one of the plurality of sub-trays set in the disc storage portion at the standby position is set in the disc storage portion. The optical disc set in the sub-tray is selectively pulled out to the loading position, and the optical disc set in the sub-tray is rotatably driven while being clamped by the clamp device and provided for reproduction in synchronization with the completion of pulling out the sub-tray to the loading position. Since the other of the two disk drive units is configured to be held at a position where the optical disk pulled in from the outside of the housing to the inside can be held by the clamp device without providing a standby position like the one disk drive unit. Limited disc drive unit with auto changer function and single disc drive unit Magnitude can be housed in a compact enclosure of.

According to the structure of claim 4,
3. The plurality of sheets according to claim 2, wherein the first optical disk drive unit disposed at an upper position of the first and second disk drive units is set in the disk storage section from the disk storage section at the standby position. One of the sub trays is selectively pulled out to the loading position, and in conjunction with the completion of pulling out the sub tray to the loading position, the optical disc set in the sub tray is clamped by the clamp device and rotationally driven. The second disk drive unit,
Since the optical disk pulled in from the outside of the housing is held at a position where it can be clamped by the clamp device without providing a standby position like the first disk drive unit,
The optical disk in the standby position and the optical disk held by the second disk drive unit can be arranged close to each other in the height direction of the housing. Therefore, the height direction of the opening provided in the front panel of the housing for loading and unloading these optical disks can be made small, and the intrusion of dust and foreign matter can be minimized.

According to a fifth aspect of the present invention, in the fourth aspect, the second disk drive unit is pulled from the outside of the housing to a position where it can be held by the clamp device.
Since the optical disc set in the tray is clamped by the clamp device and is rotationally driven for reproduction, the second disc drive unit is frequently inserted and removed for replacement. Since the optical disc is supplied by the tray, the operability when exchanging the optical disc is good.

According to a sixth aspect of the present invention, in the fifth aspect, the power transmission path of the drive source is arranged so that the disk storage portion of the first disk drive unit is located outside the housing and in the standby position inside the housing. Since the switching means is provided for switching between the first switching state for driving and the second switching state for driving the tray of the second disk drive unit to the external position of the housing and the reproducing position inside the housing, a single unit is provided. It is possible to drive the disk storage portion of the first disk drive unit and the tray of the second disk drive unit only by the drive source of the above.

According to a seventh aspect of the present invention, in the sixth aspect, the disc of the first disc drive unit is located at an intermediate position in the middle of switching the switching means from the first switching state to the second switching state. Since the stopper mechanism is configured so that both the storage portion and the tray of the second disk drive unit are located inside the housing, the switching between the first switching state and the second switching state can be stably performed.

According to the eighth aspect of the present invention, in the sixth and seventh aspects, the front panel of the housing has an opening through which the disc storage portion of the first disc drive unit and the tray of the second disc drive unit come in and out. Since the first opening / closing lid for opening / closing the opening / closing portion of the opening is provided and the second opening / closing lid for opening / closing the opening / closing portion of the opening is provided, the disk storing portion exits. In this case, the opening / closing part of the tray can be closed by the second opening / closing lid, and the opening / closing part of the disk storage part can be closed by the first opening / closing lid when the tray is opened. Since the part can be closed, it is possible to prevent foreign matter from entering from the front panel.

According to the structure of claim 9, in claim 8, since the rotation supporting shaft of the first opening / closing lid and the rotation supporting shaft of the second opening / closing lid are made common, the rotation supporting shafts are provided separately. The configuration can be simplified as compared with the case where it is supported.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an optical disc device according to an embodiment.

FIG. 2 is a front view of the same embodiment.

FIG. 3 is a horizontal sectional view of the same embodiment.

FIG. 4 is a cross-sectional front view of the same embodiment.

FIG. 5 is a vertical sectional side view of the main tray of the same embodiment.

FIG. 6 is a perspective view of the sub-tray according to the same embodiment.

FIG. 7 is a vertical cross-sectional side view of the main part of the same embodiment with the main tray pulled out.

FIG. 8 is an overall vertical cross-sectional side view of the same embodiment with a main tray pulled out.

FIG. 9 is a vertical cross-sectional side view of the main part of the same embodiment with the lower tray pulled out.

FIG. 10 is an overall vertical cross-sectional side view showing a state in which the lower tray of the same embodiment is pulled out.

FIG. 11 is a plan view of a drive system that drives the main tray of the embodiment to move in and out.

FIG. 12 is a side view of a drive system that drives the main tray in the same embodiment to move in and out.

FIG. 13 is a front view of a drive system that drives the main tray of the embodiment to move in and out.

FIG. 14 is a plan view of a drive system that drives the lower tray of the same embodiment to move in and out.

[Explanation of symbols]

1 Case 1a Front Panel 1b Openings 2a, 2b First and Second Opening / Covering Lids 3 Rotating Spindle 4a First Disk Drive Unit 4b Second Disk Drive Unit 5 Under Clamp 6 Read Head 7 Read Head Traverse Drive 8 chassis _{9a 1, 9a 2, 9a 3} , 9b optical disc 10 main tray [disk accommodating section] 11a, 11b, 11c sub-tray 12 guide recess 13 the clamp on 14a, 14b guide projections 15 tray 16 support 17 first slide lever 18 shaft 19 second slide lever 20 shaft 21 idler lever 21a shaft 21b idler gear 21c pin 21d stopper 21e convex portion 22 intermediate gears 23a, 23b transmission gear 24 motor 25 shaft 26 stopper rotating body 26a guide surface 26b tip projection

Claims (9)

[Claims] 1. A first casing and a second disc driving unit for rotating and reproducing while sandwiching an optical disc by a clamp device are housed in a single casing, and the optical disc is mounted from the front of the casing. An optical disk device configured to be loaded and unloaded, and in which the positions of the first and second disk drive units inside the housing are arranged so as to be offset from each other in the loading and unloading direction of the optical disk. 2. An optical disk sandwiched by a first disk drive unit and an optical disk sandwiched by a second disk drive unit at positions inside and outside the housing in the direction of loading and unloading of optical disks of the first and second disk drive units. The optical disk device according to claim 1, wherein the optical disk device and the optical disk device are arranged so as to overlap each other. 3. One of the first and second disk drive units is provided with an arbitrary one sub-tray of a plurality of sub-tray set from the disk storage section at the standby position to the disk storage section. Selectively pull out to the loading position,
Interlocked with the completion of pulling out the sub-tray to the loading position, the optical disc set in the sub-tray is clamped by a clamp device and is rotationally driven to be used for reproduction. Of the first and second disc drive units, 3. The structure according to claim 1, wherein the other is held at a position where an optical disk pulled in from the outside of the housing to the inside can be held by a clamp device without providing a standby position like the one disk drive unit. Optical disk device. 4. A plurality of first optical disk drive units arranged in an upper position of the first and second disk drive units, the plurality of disks being set in the disk storage section from the disk storage section at the standby position. One of the sub trays is selectively pulled out to the loading position, and in conjunction with the completion of pulling out the sub tray to the loading position, the optical disc set in the sub tray is clamped by the clamp device and rotationally driven. The second disk drive unit is held at a position where the optical disk pulled in from the outside of the housing can be clamped by the clamp device without providing a standby position like the one disk drive unit. The optical disk device according to claim 1 or 2, wherein the optical disk device is configured to do so. 5. The second disk drive unit is pulled from the outside of the housing to a position where it can be clamped by a clamp device, and the optical disk set on the tray is rotationally driven while being clamped by the clamp device for reproduction. The optical disk device according to claim 4, configured as described above. 6. A first switching state for driving the power transmission path of the drive source to drive the disk storage portion of the first disk drive unit to an external position of the housing and a standby position inside the housing, and a second switching state.
6. The optical disk device according to claim 5, further comprising switching means for switching the tray of the disk drive unit to a second switching state in which the tray is driven to the outside position of the housing and the reproduction position inside the housing. 7. The disc storage unit of the first disc drive unit and the tray of the second disc drive unit at an intermediate position in the middle of switching the switching means from the first switching state to the second switching state. 7. The optical disk device according to claim 6, wherein the stopper mechanism is configured so as to be located inside the housing. 8. A front panel of the housing is provided with an opening through which a disc storage portion of the first disc drive unit and a tray of the second disc drive unit come in and out, and the opening and closing portion of the opening where the disc storage portion comes in and out. 8. The optical disk device according to claim 6, further comprising: a first opening / closing lid for opening and closing, and a second opening / closing lid for opening / closing a portion of the opening where the tray comes in and out. 9. The optical disk device according to claim 8, wherein the rotation support shaft of the first opening / closing lid and the rotation support shaft of the second opening / closing lid are common.