JPH07226006A - Device for recording/reproducing disk - Google Patents

Abstract

PURPOSE:To load, record/reproduce two kinds of disks as they are. CONSTITUTION:Relative movement between a frame 2 and a chassis 17 or a holder 6 is obstructed by locking plates 8, 10 in the position where a disk 33 of an MD is recorded/reproduced. Then, when a CD is loaded at the time of reproduction operating the disk 33 of the MD, the relative movement between a disk port and the chassis 17, and the holder 6 is eliminated, and the loading is ensured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk recording / reproducing apparatus, and more particularly to a disk recording / reproducing apparatus capable of recording / reproducing different kinds of disks.

[0002]

2. Description of the Related Art In recent years, compact discs with good sound quality
(CD) playback devices have become widespread. The CD is currently
Two types of diameter 12 cm and 8 cm (single type) are released,
Widely used. This CD has a large size of a 12 cm CD when used in a portable CD player, which is inconvenient to carry. Also, when the disc is attached to the playback device, it will come into direct contact with your hands, so the surface of the disc will become dirty and dust will adhere.
There is a problem that a normal recording / reproducing state cannot be obtained.

Therefore, the outer diameter is made smaller than the diameter of the CD, and a new cartridge type disk (mini disk: MD) in which the disk is built in the cartridge.
Was devised and put on the market. Usually, when recording / reproducing is performed using the MD having a built-in disc, a dedicated disc recording / reproducing device is used. This MD uses the same recording system as the CD, and can be reproduced by the same optical pickup during reproduction. If both the CD and MD are mounted in the same disc recording / reproducing apparatus (non-simultaneously mounted), both discs can be reproduced.

Conventionally, when reproducing both a disc built in a cartridge as described above and a disc not built in the cartridge by the same disc recording / reproducing apparatus, the disc is taken out from the cartridge and used.

[0005]

However, in the above-mentioned conventional structure, when reproducing the disc built in the cartridge, the disc has to be taken out from the cartridge and used, and the handling is troublesome. . Since the turntables are the same in this configuration, the centering holes in both disks must have the same diameter.

In view of the above-mentioned conventional problems, the present invention is a disc recording / reproducing apparatus capable of non-simultaneously recording / reproducing two types of discs, recording / reproducing without taking out the discs from the cartridge, and further improving operability. The purpose is to provide.

[0007]

In order to achieve the above object, a disk recording / reproducing apparatus of the present invention records signals on a first disk built in a cartridge and a second disk not built in the cartridge. Alternatively, a base having a recording / reproducing means for reproducing and a disk rotation driving means for rotating the first disk and the second disk, a holding means for detachably holding the cartridge, and the first To a first position when loading the second disc or the second disc, a second position for recording / reproducing the first disc, and a third position for recording / reproducing the second disc. Movement control means for moving at least one of the base body and the holding means,
Disk detecting means for detecting the second disk in the vicinity of a disk insertion opening formed in a panel on the front surface of the apparatus, a frame for supporting the holding means and the base body through an elastic support member, the holding means and the base body A lock means for preventing relative movement between the second disk and the second disk at the first position or the second position and the second disk detected by the disk rotation driving means. And a disk transfer means for transferring to the lock transfer means for switching the lock means to a position for blocking and releasing the relative movement in the second position and a position for blocking the relative movement in the first position. And means.

Recording / reproducing means for recording or reproducing a signal with respect to a first disc contained in the cartridge and a second disc not contained in the cartridge, and the first disc or the second disc. A base having disk rotation driving means for rotating the disk, holding means for detachably holding the cartridge, a first position for loading the first disk and the second disk, and the first disk Control means for moving one of the base body and the holding means to a second position for recording / reproducing data and a third position for recording / reproducing the second disk, and the disk rotation drive. A first turntable which is fixed to the means and mounts the first disk, and which is provided so as to be connectable / separable from the first turntable. A second turntable on which a second disc is mounted, and a clamp member for abutting the second disc on the second turntable, and a position where the second disc abuts on the first turntable. And the second
The clamper arm for transferring between the positions separated from the turntable and the first disk in the second position and the second disk in the vicinity of the third position. Clamper arm actuating means for actuating the arm to bring the clamp member into contact with the second disk.

Further, the present invention is characterized by comprising memory means for storing a recording / reproducing signal when the loading operation of the second disk is performed during the reproducing operation of the first disk.

[0010]

With the above arrangement, the disc recording / reproducing apparatus of the present invention has a second disc for recording / reproducing the first disc.
Since the relative movement between the frame and the base body or the holding means is blocked and released at the position, the relative movement is temporarily blocked when the second disc is loaded during the reproduction of the first disc, and the disc insertion opening Relative movement with respect to the substrate or the holding means can be eliminated to ensure the loading. Moreover, after the loading, the blocking of the relative movement between the frame and the base and the holding means is released, and the holding means and the base are elastically supported by the elastic holding means, so that the vibration transmitted from the frame to the base and the holding means is buffered. It

When the first disc is in the second position where recording / reproduction is possible, and when the second disc is loaded and is near the third position where recording / reproduction is possible, the second disc is changed to the second position. It is possible to bring the clamp member, which is brought into contact with the turntable, into contact with the second disc, and to bring the second disc into a standby state in which recording / reproduction is immediately performed.

Also, when the loading operation of the second disk is performed during the playback operation of the first disk, the playback signal is stored in the memory means, and at the time of playback, the playback signal is read out and the playback processing is performed. Avoid abnormal playback due to vibration.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a loading state in one embodiment of the present invention, FIG. 2 is a front view of a panel portion of this embodiment, FIG. 3 is a front view showing a state when reproducing an MD, and FIG. FIG. 5 is a front view of a state when playing a CD, FIG. 5 is a side view from the direction of the arrow A shown in FIG. 1, FIG. 6 is a side view of when loading a CD, and FIG. 7 is a side view of a state when playing a CD. FIG. 8 is a side view when loading a CD during MD reproduction, and FIG. 9 is a side view showing a standby state of the CD during MD reproduction.

In FIG. 2, the panel 1 is provided with an insertion slot 1a for MD and an insertion slot 1b for CD which are hatched.

In FIG. 1, the first outer casing of the apparatus main body is shown.
A second frame 3 is attached to the frame 2. Fixed shafts 4 and 5 are fixed to both sides of the second frame 3. A support shaft 7 is fixed to the right side of the holder 6, which is a support member, and a lock plate 8 is provided on the support shaft 7 slidably in the front-rear direction. A lock plate 10 is provided on a support shaft 9 fixed to the left side of the holder 6 so as to be slidable in the front-rear direction. Support springs 11 and 12 provided on the second frame 3
Suspends the holder 6. The dampers 13, 14 fixed to the first frame 2 are damper shafts 15 fixed to the holder 6,
Engage 16 respectively. Lifting pins 18 and 19 are fixed to the left and right of the chassis 17, which is the base body. Spindle motor
20 is attached between the columns 21 fixed to the chassis 17.

The first turntable 22 is fixed to the spindle shaft 20a. The centering ring 23 and the magnet 24 are attached to the first turntable 22.
Also, the second turntable 25 is held by the holder 6,
The cartridge guide 26 is attached rotatably around a shaft 27 fixed to the holder 6. As shown in FIG. 5, the guide plates are provided on the cam plates 28 and 29 which are the movement control means.
Reference numerals 30 and 31 are fixed to each other and slidably attached to the guide grooves 6a and 6b formed in the holder 6.

The MD cartridge 32 accommodates a disc 33 which is a first disc. This disc 33
A magnetic clamping plate 34 is fixed to the central portion of the. The clamper 35 is supported by the clamper arm 36. The optical head 37 records / reproduces signals on / from the disc, and is supported by the chassis 17 so as to be slidable in the disc circumferential direction by a guide shaft (not shown). Figure 4
40 is the second CD, which is shown in FIG.
38 is a CD transfer roller which is a disk transfer means, 39 is an MD
The transfer roller 41 is a CD detecting member which is a disc detecting means.

Next, the operation of this embodiment configured as described above will be described.

First, the operation of loading the MD cartridge 32 for reproduction will be described. 2 in FIG.
When the MD cartridge 32 is inserted into the MD insertion slot 1a as indicated by the dotted line, the first cartridge detecting means (not shown) detects the MD cartridge 32 and instructs the roller drive motor (not shown) to rotate. give. Then, the roller drive motor rotates to rotate the MD transfer roller 39 in the clockwise direction and transfer the MD cartridge 32 along the holder 6 to the position indicated by the broken line. When the second cartridge detecting means (not shown) detects the MD cartridge 32 at this position, a rotation stop command is activated to stop the rotation of the roller drive motor.

During the loading operation of the MD cartridge 32, as shown in FIG. 5, the V groove 10a (8a) of the lock plate 10 (8) is in the position of contacting the fixed shaft 4 (5), and the holder 6 And the second frame 3 is in a locked state. Therefore, there is no relative movement between the position of the MD insertion slot 1a and the mechanism portion such as the holder 6 or the chassis 17 shown in FIG. 1, and the MD cartridge 32 can be loaded smoothly.

After the loading of the MD cartridge 32, the cam plate actuating means (not shown) is actuated to move the cam plate 28 (29) in the direction of arrow B. At this time, the inclined cam portion 28a (29a) formed on the cam plate 28 (29) raises the lift pins 18 (19) (the chassis 17 shown in FIG. 1 also rises simultaneously). When the lifting pin 18 (19) reaches the horizontal cam surface 28b (29b), the first cam detecting means (not shown) operates to stop the cam plate operating means and at the same time, the cam plate.
The movement of 28 (29) also stops. This state is the state shown in FIG. 3, where the clamping plate 34 of the disk 33 is a magnet.
It is adsorbed by 24 and placed on the surface of the first turntable 22.

When the cam detecting means (not shown) operates, the lock plate 10 (8) shown in FIG. 5 moves in the B direction, and the V groove 10a (8)
a) is in a state (not shown) away from the fixed shaft 4 (5). On the other hand, the V groove 10b (8b) is brought into a locked state by pressing the elevating pin 18 (19). In this state, the holder 6 and the chassis 17 shown in FIG. 3 are elastically supported by the support springs 11 and 12.

Next, the spindle motor 20 shown in FIG. 1 rotates the disk 33, and the optical head 37 reads the signal from the disk 33 and reproduces it. Even when vibration is applied to the first frame 2 during reproduction of the disk 33 of the MD cartridge 32, the vibrations transmitted to the disk 33 and the optical head 37 are buffered by the support springs 11 and 12 which are elastic supporting members, which is excellent. The playback state can be obtained.

Next, the operation of reproducing the CD 40 will be described.

The state of loading the CD 40 is as shown in FIG. The first CD detecting member by inserting the CD40 indicated by the chain double-dashed line into the CD insertion opening 1b shown in FIG.
When 41 detects the CD 40, an operation command is issued to operate the switching means (not shown) for switching the rotation drive of the roller drive motor (not shown) to the CD transfer roller 38 side. Next, the CD drive roller 38 is rotated counterclockwise by rotating the roller drive motor. When the CD 40 is further inserted and reaches the position of the CD transfer roller 38, the CD 40 is sandwiched between the guide surface 6a and the CD transfer roller 38, and the CD 40 is transferred to the CD transfer roller 38.
Is transferred in the direction of arrow C by the tangential force of. Then, when the position of CD40 indicated by the solid line is reached, the detection member (not shown) moves to C
When D40 is detected, a rotation stop command is given to the roller drive motor to stop it.

From this state, the clamper arm operating means (not shown) is activated to rotate the clamper arm 36 to the state shown in FIG. In this state, the clamper 35 shown in FIG.
Is attracted to the magnet 25a, so that the CD 40 is placed on the second turntable 25.

Next, the cam plate actuating means is actuated,
The cam plate 28 (29) is operated to the position shown in FIG.
During this operation, the inclined cams 28a (29a), 28b (29b), 28c (29c) raise the lifting pins 18 (19) to the positions of the horizontal planes 28d (29d) shown in FIG. 7 (also the chassis 17 shown in FIG. 4). Rise at the same time).
In this state, the second turntable 25 is attracted to the first turntable 22 by the attraction force of the magnet 24 and is centered by the spindle shaft 20a. Further, the lock switching means (not shown) is activated, and the lock plate 10 (8) is moved to the position shown in FIG.
Move from the position shown in to the position shown in FIG.
c) presses the lifting pins 18 (19) into a locked state.

The cartridge guide 26 is the chassis 17
Before it is raised, it is rotated to a rear position where it does not interfere with the chassis 17, and the CD transfer roller 38 and MD transfer roller are rotated.
39 is moved to the position shown in FIG. In this state, the holder 6 and the chassis 17 are elastically supported by the support springs 11 and 12. Next, the spindle motor 20 rotates the CD 40, and the optical head 37 reads the signal of the CD 40 and reproduces it, as shown in FIG. Even when vibration or impact is applied to the frame 1 during reproduction of the CD 40, the vibrations transmitted to the disk 33 and the optical head 37 are buffered by the support springs 11 and 12, and a good reproduction state can be obtained.

Next, when reproducing the MD disc 33, the CD 40
The operation at the time of loading will be described.

During reproduction of the MD disc 33 shown in FIG.
As shown in FIG. 8, when the CD 40 indicated by the alternate long and short dash line is inserted into the CD insertion slot 1b, the CD detection member 41 detects and gives an operation command to the cam plate actuating means and the roller drive motor, and the cam plate 28 (29) is moved in the direction of arrow E, and the CD transfer roller 38 is further rotated clockwise.

The lock plate 10 (8) moves in the direction of arrow E,
Since the V groove 10a (8a) abuts the fixed shaft 4 (5), when the first frame 2 is vibrated, the first frame 2, the second frame 3, the holder 6, and the CD transfer roller are transferred. 38
Are prevented from moving relative to each other.

When CD40 is further inserted, CD40 becomes C
When reaching the position of the D transfer roller 38, the CD 40 is sandwiched between the guide surface 6a and the CD transfer roller 38, and the CD 40 is transferred to the CD transfer roller 38.
Is transferred in the direction of arrow E by the tangential force of. When the position of the CD 40 shown by the solid line is reached, a detection member (not shown) detects the CD 40 and gives a rotation stop command to the roller drive motor to stop it.

From the above state, the clamper arm actuating means is operated to move the clamper arm 36 to the position shown in FIG. 9, while moving the CD transfer roller 38 and the MD transfer roller 39 to the position shown in FIG. In this state, the clamper 35 holds the CD 40 by bringing the CD 40 into contact with the surface of the second turntable 25. Further, the lock switching means is activated to activate the lock plate.
The 10 (8) is moved to a position where the V groove 10b (8b) shown in FIG.

When the above-mentioned operation is performed during reproduction of the MD disc 33, external vibration is directly transmitted to the disc 33 and the like, and a normal reproduction state cannot be obtained. However, in this embodiment, the memory means is used. Since a semiconductor memory is used to store a signal for a fixed time and the stored signal is reproduced,
By completing the operation within this fixed time, the reproduction state can be obtained without any problem.

When the CD 40 is reproduced from the above state,
This is performed after the MD cartridge 32 is ejected. That is,
First, from the state shown in FIG. 9 for the CD40, the solid line C in FIG.
In order to obtain the state of D40, the operation shown in FIG. 8 described above is reversed to the state shown in FIG. 9, and the state shown in FIG. 8 is obtained. And the MD cartridge 32 shown in FIG.
5 is ejected to the position of the MD cartridge 32 shown by the chain double-dashed line in FIG. 5, the operation opposite to the operation of changing the state of FIG. 5 from the state of FIG. Then M
After removing the D cartridge 32, the CD playback switch
When (not shown) is turned on, the CD 40 changes from the state shown by the solid line in FIG. 6 described above to the reproduction state shown in FIG.
Playback is performed.

As described above, according to this embodiment, when the CD 40 is loaded during the reproduction of the MD disc 33, the frames 2, 3 and the chassis 17 and the holder 6 are locked so that the insertion for the CD is performed. Relative movement between the mouth 1b and the mechanical parts such as the chassis 17, the holder 6, the CD transfer roller 38, etc. is eliminated, and the loading of the CD 40 is performed without any trouble.

MD disk during loading operation
Since the semiconductor memory is used for the reproduction of 33, even if the vibration is directly transmitted to the MD disk 33 or the optical head 37, the reproduction is performed without any problem. Further, it is possible to load the CD 40 during the reproduction of the MD disc 33 and then put it in a standby state, so that the CD 40 can be reproduced immediately after the MD cartridge 32 is taken out.

[0039]

As described above, according to the first aspect of the present invention, the disc recording / reproducing apparatus of the present invention has the first disc (MD) contained in the cartridge and the first disc (MD) not contained in the cartridge. The second disc (CD) can be loaded as it is for recording / reproduction, and the relative movement between the frame and the substrate or the holding means can be prevented and released at the second position for recording / reproducing the first disc. Therefore, when the second disc is loaded during the reproduction of the first disc, the relative movement is temporarily blocked, and the relative movement between the disc insertion opening and the base body or the holding means is eliminated.
You can ensure loading. Moreover, after loading, the blocking of relative movement between the frame and the base body and the holding means is released, and the holding means and the base body are elastically supported by the elastic holding means, so that the vibration transmitted from the frame to the base body and the holding means can be buffered. Good recording / reproduction is performed.

According to the second aspect of the present invention, the first disc and the second disc are loaded as they are for recording / reproduction, and the first disc can be recorded / reproduced. In the position, and when the second disc is loaded and is in the vicinity of the third position where recording / reproduction is possible, the clamp member for bringing the second disc into contact with the turntable comes into contact with the second disc. Since the standby state in which the recording / reproducing on the second disk is immediately performed can be performed, the operability at the time of recording / reproducing can be improved.

According to the third aspect of the present invention, when the loading operation of the second disk is performed during the playback operation of the first disk, the playback signal is stored in the memory means,
By using the reproduction signal at the time of reproduction, it is possible to prevent an abnormal reproduction state from occurring due to external vibration or the like, and improve the reproduction characteristic.

[Brief description of drawings]

FIG. 1 is a front view of a disc recording / reproducing apparatus according to an embodiment of the present invention in a loading state.

FIG. 2 is a front view of a panel portion in the present embodiment.

FIG. 3 is a front view showing a state when reproducing an MD.

FIG. 4 is a front view of a state when reproducing a CD.

5 is a side view from the direction of the arrow A shown in FIG.

FIG. 6 is a side view when loading a CD.

FIG. 7 is a side view showing a state when reproducing a CD.

FIG. 8 is a side view showing a CD loading state during MD reproduction.

FIG. 9 is a side view showing a standby state of a CD during MD reproduction.

[Explanation of symbols]

2 ... 1st frame, 3 ... 2nd frame, 4, 5
... Fixed shaft, 6 ... Holder (holding means), 8, 10 ... Lock plate (locking means), 11, 12 ... Support spring (elastic support member),
17 ... Chassis (base), 18, 19 ... Lifting pins, 20 ... Spindle motor (disk rotation driving means), 22 ... First turntable, 25 ... Second turntable, 28,
29 ... Cam plate (movement control means), 32 ... MD cartridge, 33 ... MD disc (first disc), 35 ... Clamper (clamp member), 36 ... Clamper arm, 37 ...
Optical head (recording / reproducing means), 38 ... CD transfer roller (disk transfer means), 40 ... CD (second disk), 41 ...
CD detection member (disc detection means).

Claims (3)

[Claims] 1. A recording / reproducing means for recording or reproducing a signal to and from a first disc contained in a cartridge and a second disc not contained in the cartridge, and the first disc and the second disc. A base having a disk rotation driving means for rotating a disk, a holding means for detachably holding the cartridge, a first position for loading the first disk or the second disk, and the first Movement control means for moving at least one of the base body and the holding means to a second position for recording / reproducing the disk and a third position for recording / reproducing the second disk, and A disc detection means for detecting the second disc near the disc insertion opening formed on the panel, an elastic support member for the holding means and the base body. The frame supported via the lock means for preventing relative movement of the holding means and the base body; and the disk detecting means for detecting the second disk at the first position or the second position. The disk transfer means for transferring the second disk to the position of the disk rotation driving means, the lock means at the second position for preventing and releasing the relative movement, and at the first position for the lock operation. A disk recording / reproducing apparatus comprising: a lock switching unit that switches to a position that prevents relative movement. 2. A recording / reproducing means for recording or reproducing a signal to and from a first disc contained in a cartridge and a second disc not contained in the cartridge, and the first disc or the second disc. A base body having a disk rotation driving means for rotating the disk; a holding means for holding the cartridge detachably;
First position when loading the second disc and the second disc, a second position for recording / reproducing the first disc, and a third position for recording / reproducing the second disc.
Movement control means for moving one of the base body and the holding means to the position, a first turntable fixed to the disk rotation driving means and mounting the first disk, and the first turntable. A second turntable that is provided so as to be connectable / separable from a turntable on which the second disc is placed, and a clamp member that abuts the second disc on the second turntable. A clamper arm for transferring the disc between a position in which the disc contacts the first turntable and a position in which the disc is separated from the second turntable; and the first disc in the second position, and the second disc. And a clamper arm actuating means for actuating the clamper arm to bring the clamp member into contact with the second disc when the disc is in the vicinity of the third position. Disk recording and reproducing apparatus, characterized in that was e. 3. A memory means for storing a recording / reproducing signal when the loading operation of the second disk is performed during the reproducing operation of the first disk. Disk recording / playback device.