JPH1139780A - Disk reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect misloading of a disk without obstructing the miniaturizing of a disk reproducing providing an imparting means imparting the force of a disk flat plane direction on a disk being in a loading state loading the disk on a turntable and a means detecting the movement of the disk being in a loaded state. SOLUTION: Since the loading position of a disk D1 is detected by the angle of an arm 40, when a device receives a vibration at the time of transferring the disk, there is a case the disk D1 can not be stopped at a reproducing position correctly. In order to dissolve this problem, a belt 33 is repeatingly forward and backward rotated by controlling a driving mechanism. As a result, the disk D1 receives a force vibrating a little backward and forward and when the disk D1 is in a misloaded state, the disk is made to be correctly loaded on the turntable. Moreover, in order to perform a confirmation, it is confirmed that the disk D1 is not moved by monitoring a pulse signal from an pulse encoder 70 while rotating the belt 33 in clockwise direction for several seconds.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk reproducing apparatus for reproducing a digital audio disk, a video disk and the like, and more particularly to a discriminating means for discriminating whether or not a disc is normally mounted on a turntable. The present invention relates to a disc reproducing apparatus provided with the above.

[0002]

2. Description of the Related Art According to a general disk reproducing apparatus, a recording position of a disk and its opposing surface are clamped by a pair of rollers, and the left and right sides of the disk are clamped by a pair of belts. The disc is mounted on the turntable by moving the turntable (or disc) close to the disc (or turntable). However, if the disk is subjected to vibration during transfer, the disk may not be able to be accurately brought to the playback position. In this case, for example, the turntable is moved upward as shown in FIG. Even so, the centering portion 51B of the turntable 51 does not enter the spindle hole Ds of the disk D1, resulting in a disk mounting error.
Therefore, according to the conventional apparatus, in order to detect the disk mounting error, a sensor for determining that the lowering stroke of the clamper is limited is provided, for example, as described in Japanese Utility Model Publication No. 3-33978. , A disk mounting error was detected.

[0003]

However, in recent years, downsizing of a disk reproducing apparatus has been required, and a space for disposing such a sensor has been regarded as a problem. In particular, in a disc changer in which a clamper is inserted between a reproduction disk and a storage disk, if a sensor for detecting a stroke of movement of the clamper is arranged, it is necessary to further increase the distance between the reproduction disk and the storage disk above the reproduction disk. Yes, the number of disks to be stored must be reduced.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the apparatus of the present invention is a disk reproducing apparatus for rotating a disk mounted on a turntable to reproduce the disk. Means for applying a force in the direction of the plane of the disk to the disk in the mounted state of the table, detecting means for detecting the movement of the disk in the mounted state, and turning of the disk based on the output of the detecting means. Discriminating means for discriminating whether or not the cable is normally mounted.

[0005]

According to the apparatus of the present invention having the above-described structure, in the mounted state, the applying means applies a force to the disk in the plane direction of the disk, and the determining means turns the disk into a turntable based on the output of the detecting means. It is determined whether or not the camera is properly mounted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a changer to which the present invention is applied.
FIG. 2 shows a top view of a main part of a disk reproducing apparatus 1000. The disc reproducing apparatus 1000 includes a stocker unit 20 capable of storing a plurality of discs on the rear side of the apparatus, and the disc inserted into the slot 11A of the front panel 11 of the apparatus is stored in a stocker via a reproducing position (a dashed line in FIG. 2). A disc changer that enables selective reproduction of a plurality of discs by being housed in the section 20 is configured.

The stocker section 20 has six disks D1 to D
1 are stored as independent disk holders 21 to 26 (FIG. 1).
0 to FIG. 12). These disk holders 21 to 26 are provided with four stocker screws 27.
The guide pins 21B to 26B projecting inward from the guide holes 21A to 26A are mounted on the stocker screw 27 by a single spiral guide 27A (FIG. 9). See).

The four stocker screws 27 are connected to a drive mechanism M1 via a switching mechanism S1, and are simultaneously driven to rotate. The switching mechanism S1 switches whether the driving force of the driving mechanism M1 is transmitted to the stocker screw 27 or the disk transfer belt 33 described later in response to the front and rear positions of the optical mechanism 50. The optical mechanism 50 is housed in the stocker 20. When the disc is in a forward position retracted from between the discs (FIG. 8), the driving force of the driving mechanism M1 is transmitted to the stocker screw 27, and the optical mechanism 50
Is in the rear position inserted between the disks (FIG. 1),
The driving force is transmitted to the disk transfer belt 33 (pulley 35).

FIGS. 10 to 12 show a stocker screw 27.
Transfer surface S and disk holders 21-
It is principal part sectional drawing which shows the positional relationship of 26. As shown in FIG. 10, when the first disk holder 21 is aligned with the disk transfer surface S, the second disk holder 22 is located 16.8 mm below the first disk holder 21 and the third disk holder 23 to the third disk holder 23. The six disk holders 26 are located at equal intervals below the disk holders 22 to 25 by 2 mm, respectively. In this state, when the stocker screw 27 makes one rotation clockwise when viewed from the top of the apparatus, as shown in FIG. 11, the first disk holder 21 rises by 9 mm and the second disk holder 22 rises by 16.8 mm. To align with the disk transfer surface S. At the same time, the third to sixth disk holders 23 to 26 are each raised by 2 mm. Thereafter, each time the stocker screw 27 makes one rotation, the disk holder one below is aligned with the disk transfer surface S. Then, as shown in FIG. 12, when the sixth disk holder 26 is aligned with the disk transfer surface S, the fifth disk holder 25 is located 9 mm above the sixth disk holder 26, and the first disk holders 21 to 21 are located. The fourth disk holder 24 is 2 m each of the disk holders 22 to 25 thereunder.
m at equal intervals. As described above, the stocker screw 27 aligns each disk holder with the disk transfer surface S every one rotation, and widens the interval between the aligned disk holder and the disk holders above and below the disk holder. An insertion space for the optical mechanism 50 and the clamper 60 is formed.

On the other hand, the disk inserted into the slot 11A is clamped on the left and right outer surfaces by a disk transfer mechanism 30 comprising a drive-side disk guide 31 and a fixed-side disk guide 32, and is coaxial with the turntable 51. Are transferred to a storage position (a dashed-dotted line position in FIG. 6) stored in a disk holder aligned with the disk transfer surface S via a reproducing position (a dashed-dotted line position in FIG. 2). According to the apparatus of this embodiment, the reproduction position is located 35 mm forward of the storage position from the storage position as shown in FIG. 2, and the center of rotation of the disk is overlaid in a plane with the disk surface of the disk D2 in the storage position. -Wrapped.

The drive-side disk guide section 31 has a guide groove 31A for guiding the left peripheral edge of the disk, and incorporates a belt 33 for driving the left outer peripheral surface of the disk. The belt 33 is stretched between the pulleys 35 and 36, and the pulley 35 on the front side is driven by the driving mechanism M1 via the switching mechanism S1.
Connected to. On the other hand, the fixed-side disk guide portion 32 has a guide groove 32A for guiding the right peripheral portion of the disk,
A friction sheet 34 is mounted in the guide groove to prevent slippage with the right outer peripheral surface of the disk. A groove 32B (FIG. 13) for preventing engagement with an arm 40 described later is formed on the lower surface side of the fixed-side disk guide portion 32.

The disk guides 31 and 32 are attached to the apparatus chassis so as to be movable left and right, and are connected by a pinion gear 38. A spring 39 is hung between the disk guide portions 31 and 32. When the disk is not inserted, the interval between the belt 33 and the friction sheet 34 is smaller than the disk diameter as shown in FIG. It is urged to.

On the other hand, an arm 40 is rotatably supported on the front right side of the apparatus. The arm 40 rotates together with the transfer of the disk to prevent the disk from being tilted. An engagement recess 40A is formed at the end of the arm 40, and the arm 40 is urged to the position shown in FIG. Therefore, arm 4
As shown in FIG. 13, reference numeral 0 denotes a retracted position (see FIG. 4) which is rotated together with the transfer of the disc to restrict the vertical movement of the tip of the disc when the disc is reproduced and the stocker is moved up and down. ). To detect the disk transfer position,
A pulse encoder 70 is mounted in the vicinity of the rotation axis of the system 40, and a slit plate 71 for blocking light from the encoder 70 is fixed on the side of the apparatus chassis. The encoder 70 outputs a pulse signal in accordance with the rotation of the arm 40, and the disk transfer position is detected by counting the number of pulses.

The disk D brought to the playback position
In 1, the recorded information is optically read by the optical mechanism 50. The optical mechanism 50 includes a turntable 51, an optical head 52, an optical mechanism chassis 53, and the like, like a general optical disk player. This optical mechanism 5
0 is driven by the drive mechanism M2 so that the turntable 51 is accommodated in the stocker 20 as shown in FIG. 4 and the rear position where the turntable 51 is coaxial with the disk D1 at the reproduction position as shown in FIG. Back and forth between the discs and the front position evacuated from the discs.
It moves up and down between an up position where the upper surface on the table 51 is aligned with the lower surface of the disk at the reproduction position and a down position retracted below the disk at the reproduction position.

A magnet clamper 60 is provided for clamping the disc D1 brought to the reproducing position on the turntable 51. As shown in FIG. 20, a magnetic plate 60B is attached to the lower surface of the clamper 60, and the disk D1 is placed on the turntable 51 by the attraction force of a magnet 51A attached to the inside of the upper surface of the centering portion 51B. Fixed to.

According to the present embodiment, the clamper 60
Is removably locked to the tip of a clamp arm 61 rotatably supported by the apparatus chassis by a shaft 61C. The clamp arm 61 is driven by the drive mechanism M3.
As shown in FIG. 3, a clamp position where the clamper 60 is coaxial with the turntable 51 brought to the rear position, and an unclamped position retracted from between the stored disks as shown in FIG. Between the two. FIG.
As shown in FIG. 5, a Y-shaped groove 61A is formed at the tip of the clamp arm 61 to guide the neck 60A (FIG. 20) of the clamper 60 so as to be freely inserted and removed in the direction of arrow A.
A lock plate 62 for locking A in the Y-shaped groove 61A is provided. The lock plate 62 is supported by a clamp arm 61 by a shaft 61B, and is urged clockwise by a relatively weak force by a spring 64. Lock plate 6
The engaging surfaces 62A, 62B of the second clamper 6 are clamped.
0 is locked / unlocked only by the rotation of the clamp arm 61.
Is inclined at an angle of about 45 degrees. The rotation angle of the lock plate 62 when the clamper is removed (FIG. 17) is restricted by the stopper pin 63.

FIG. 18 is a block diagram of a main part of a control circuit 100 for controlling the above-described apparatus of this embodiment. Control circuit 10
1 includes a ROM, a RAM, an interface circuit, etc.
A pulse signal from the above-described pulse encoder 70 and position signals from many sensors (not shown) for detecting the position of each mechanism are input to the driving mechanism M1. Control M3. On the other hand, a read signal read by the optical head 52 is supplied to a signal processing circuit 103 via an RF amplifier 102, and is subjected to processing such as EFM demodulation, deinterleaving, and error correction, and is converted into a digital audio signal. The analog audio signal is D / A converted by the / A conversion circuit 104 and output.

Hereinafter, the above-described disc reproducing apparatus 1000 will be described.
Will be described with reference to the flowchart shown in FIG.

As shown in FIG. 1, when the disc is in a disc receiving state in which a disc can be inserted, the disc guide portion 31,
32 is urged by the spring 39 to the disk receiving position in which the interval between the belt 33 and the friction sheet 34 is smaller than the disk diameter, and the arm 40 has its engaging recess 40A formed by the spring 41 in the slot 11A. It is biased to the angle located on the back. On the other hand, the optical mechanism 50 is inserted between the disks at the storage position, and at the rear position which is coaxial with the disk brought to the reproduction position, the disk transfer surface S
It is retracted below (down position). It is assumed that the stocker unit 20 is in a state where the first disk holder 21 is aligned with the disk transfer surface S as shown in FIG.

When the disk D1 is inserted into the slot 11A, the insertion end of the disk D1 is immediately inserted into the engagement recess 40A of the arm 40, and the disk D1 is corrected to a horizontal posture. As the disc is inserted, the arm 40 rotates clockwise, and the disc guides 31 and 32 are pushed right and left. The control circuit 101 determines that the encoder 7
When it is determined that the disk D1 has been inserted to some extent based on the pulse signal from 0, the driving mechanism M1 is controlled in step S2 to rotate the belt 33 counterclockwise to start loading. With the rotation of the belt 33, the inserted disk D1 and the belt 33 are frictionally sheared.
And is transported to the rear of the device while rotating clockwise.

Subsequently, when the control circuit 101 detects in step S3 that the disk has been transported to the disk reproduction position (FIG. 2), the brake control is performed in step S4 to stop the loading, and step S5. To control the driving mechanism M3 to move the clamp arm 61 to the clamping position (FIG. 3), and then to the driving mechanism M in step S6.
2 to move the optical mechanism 50 to the up position.

Here, according to the apparatus of the present embodiment, the disk can easily overrun when stopped,
Because the disk position is detected by detecting the angle of
If the disc is subjected to vibration during transfer, the disc may not be able to be accurately stopped at the reproduction position.
In this case, even if the optical mechanism 50 is raised, as shown in FIG.
Causes a disk mounting error that does not fit properly in the spindle hole Ds of the disk D1, and at the same time, a clamper 60 in which the clamper 60 is not properly attracted to the magnet 51A.

To solve this problem, the control circuit 101
In step S7 following step S6, the driving mechanism M1 is controlled to rotate the belt 33 forward and backward repeatedly within a small range. Due to this belt movement, the disk D1 receives the force of oscillating back and forth, and if it is in a mounting error state (FIG.
9), moving back and forth, the centering portion 51B of the turntable 51 enters the disk spindle hole Ds (FIG. 2).
0). When the disc D1 is correctly mounted on the turntable 51, the clamper 60 is also attracted to the magnet 51A and clamps the disc D1. On the other hand, when the disk D1 is already correctly mounted on the turntable 51 (FIG. 20), the disk D1 moves back and forth by the belt movement because its spindle hole Ds is regulated by the centering portion 51B. The friction sheet 34 and the right outer peripheral surface of the disk slip and rotate forward and reverse at that point, or the belt 33 and the outer peripheral surface of the disk slip and keep no movement. The disc mounting state does not deteriorate.

Further, the control circuit 101 rotates the belt 33 in the clockwise direction for several seconds in step S8 in order to confirm whether or not a disk mounting error has occurred in spite of step S7. Monitor the pulse signal to make sure the disk does not move. As described above, if the disk is properly mounted on the turntable, it does not move to the front of the apparatus due to the belt movement. Therefore, if the disk does not move, the control circuit 101 determines that the disk is correctly mounted, and rotates the clamp arm 61 to the unclamping position in step S10. Then, since the clamper 60 is strongly attracted by the magnet 51A, the lock plate 62 rotates counterclockwise by the rotation of the clamper arm 61 as shown in FIGS. Break away from Subsequently, the control circuit 101 moves the disk guides 31, 32 to the open position shown in FIG. 4 in step S11 to separate the belt 33 and the friction sheet 34 from the outer peripheral surface of the disk, and starts disk reproduction in step S12. (FIG. 4).

On the other hand, when the disk movement is detected in step S9, the control circuit 101 determines that a disk mounting error has occurred, and in step S12 the optical mechanism 50 is detected.
Is lowered to the down position, the clamp arm 61 is moved to the unclamping position together with the clamper 60 in step S13, and the belt 33 is rotated clockwise in step S14 to move the disk D1 to the eject position (FIG. 1). (The position indicated by the dashed line in FIG. 1) to urge the operator to reinsert the disc. After the disc is returned to the predetermined disc transfer reference position, the disc is transferred to the disc playback position again and the disc mounting operation is attempted. You may let it.

On the other hand, although the flowchart is omitted, when the disc D1 is to be ejected after the end of the reproduction, the disc guides 31, 32 are first closed, the disc D1 is clamped, and the clamp arm 61 is brought to the clamp position. The clamper 60 is moved to lock the clamper 60. Then, after lowering the optical mechanism 50 to the down position and moving the clamper arm 61 together with the clamper 60 to the unclamping position, the belt 3
3 is rotated clockwise to transfer the disk D1 to the eject position.

The disk D1 at the playback position is stored in another disk (for example, disk D) stored in the stocker unit 20.
When replacing with 2), first, the disk guide portion 31
32, close the disk D1 and clamp the arm 6
1 is moved to the clamp position to lock the clamper 60 (FIG. 3). Then, after lowering the optical mechanism 50 to the down position and moving the clamper arm 61 to the unclamping position together with the clamper 60, the belt 33 is rotated counterclockwise to store the disk D1 in the disk holder 21 (FIG. 6). Subsequently, the optical mechanism 50 is moved to the front position to be retracted from between the disks D1 and D2 (FIG. 7), and the disk guides 31, 32 are expanded to the open position (FIG. 8). Subsequently, the stocker screw 27 is rotated to align the disk holder 22 with the disk transfer surface S (FIG. 1).
1) Closing the disc guides 31 and 32 and disc D
Hold 2 Then, the belt 33 is rotated clockwise to transfer the disk D2 to the reproduction position, and thereafter, the operation is controlled after the above-described step S5 to start reproduction.

It should be noted that the present invention is not limited to the above-described embodiment at all, and can take various forms. For example, according to the above-described embodiment, the disk is held between the belt 33 and the friction sheet 34, but the recording surface of the disk and the opposite surface are held and transported by a pair of loading rollers. May be.
Further, the above-mentioned disc reproducing apparatus transports the disc between the eject position, the reproducing position, and the storing position, but the magazine type disc changer for moving the disc between the reproducing position and the storing position, and the disc is moved to the eject position. The present invention may be applied to a single disc player that transfers only to and from a reproduction position. Further, after the control circuit 101 rotates the belt 33 for a predetermined time in step S8,
Although the disk movement is checked in step S9, the rotation of the belt 33 may be stopped immediately after the disk movement is detected.

[0029]

As described above, according to the present invention, a disc mounting error can be detected without hindering downsizing of a disc reproducing apparatus, and a disc changer in which a clamper is inserted between a reproducing disc and a storage disc is provided. Even when the method is applied, the number of stored disks is not reduced.

[Brief description of the drawings]

FIG. 1 is a top view of a main part of a changer-type disc reproducing apparatus 1000 showing an apparatus according to an embodiment of the present invention, showing a disc receiving state.

FIG. 2 is a top view of the apparatus showing a disk reproduction position.

3 is a top view of the apparatus showing a clamp position of a clamp arm 61. FIG.

FIG. 4 is a top view of the apparatus showing a disk reproduction state.

FIG. 5 is a top view of the apparatus showing a state where a disk is being stored.

FIG. 6 is a top view of the apparatus showing a disk storage position.

FIG. 7 is a top view of the apparatus showing a front position of the optical mechanism 50.

FIG. 8 is a top view of the apparatus showing a disk storage state.

FIG. 9 is a perspective view of a stocker screw 27.

FIG. 10 is a sectional view of the stocker unit 20 showing a state where the disk holder 21 is aligned with the disk transfer surface S.

FIG. 11 is a cross-sectional view of the stocker unit 20 showing a state where the disk holder 22 is aligned with the disk transfer surface S.

FIG. 12 is a sectional view of the stocker unit 20 showing a state where the disk holder 26 is aligned with the disk transfer surface S.

FIG. 13 is a perspective view of a main part for explaining the operation of the rotating arm 40;

FIG. 14 is a main part top view showing details of the clamp arm at a clamp position.

FIG. 15 shows a clamp arm 61 during unlocking.
FIG. 4 is a top view of a main part showing details of the main part.

FIG. 16 shows a clamp arm 61 during unlocking.
FIG. 4 is a top view of a main part showing details of the main part.

FIG. 17 is a clamper unlocking the clamper 60;
FIG. 6 is a top view of a main part showing details of a program 61;

FIG. 18 is a block circuit diagram showing a control circuit of the device of the present embodiment.

FIG. 18 is an essential part cross-sectional view showing a state where a disk mounting error has been caused;

FIG. 19 is an essential part cross-sectional view showing a normal disc mounting state.

FIG. 20 is a flowchart for explaining the operation of the apparatus according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Stocker part 21-26 Disk holder 30 Disk transfer mechanism 31 Drive side disk guide part 32 Fixed side disk guide part 33 Belt 34 Friction sheet 40 Arm 40A Engagement concave part 41 Spring 50 Optical mechanism 51 Turntable Reference Signs List 51A magnet 51B centering part 52 optical head 60 clamper 60A shaft part 60B magnetic plate 61 clamper arm 62 lock plate 64 spring 70 pulse encoder 71 slit plate 101 control circuit 102 RF amplifier 103 signal processing circuit 104 D / A conversion circuit D1 to D6 Disk M1 to M3 Drive mechanism S1 Switching mechanism De Disk outer peripheral surface Ds Spindle hole

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[Procedure amendment]

[Submission date] November 5, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a top view of a main part of a changer-type disc reproducing apparatus 1000 showing an apparatus according to an embodiment of the present invention, showing a disc receiving state.

FIG. 2 is a top view of the apparatus showing a disk reproduction position.

3 is a top view of the apparatus showing a clamp position of a clamp arm 61. FIG.

FIG. 4 is a top view of the apparatus showing a disk reproduction state.

FIG. 5 is a top view of the apparatus showing a state where a disk is being stored.

FIG. 6 is a top view of the apparatus showing a disk storage position.

FIG. 7 is a top view of the apparatus showing a front position of the optical mechanism 50.

FIG. 8 is a top view of the apparatus showing a disk storage state.

FIG. 9 is a perspective view of a stocker screw 27.

FIG. 10 is a sectional view of the stocker unit 20 showing a state where the disk holder 21 is aligned with the disk transfer surface S.

FIG. 11 is a cross-sectional view of the stocker unit 20 showing a state where the disk holder 22 is aligned with the disk transfer surface S.

FIG. 12 is a sectional view of the stocker unit 20 showing a state where the disk holder 26 is aligned with the disk transfer surface S.

FIG. 13 is a perspective view of a main part for explaining the operation of the rotating arm 40;

FIG. 14 is a main part top view showing details of the clamp arm at a clamp position.

FIG. 15 shows a clamp arm 61 during unlocking.
FIG. 4 is a top view of a main part showing details of the main part.

FIG. 16 shows a clamp arm 61 during unlocking.
FIG. 4 is a top view of a main part showing details of the main part.

FIG. 17 is a clamper unlocking the clamper 60;
FIG. 6 is a top view of a main part showing details of a program 61;

FIG. 18 is a block circuit diagram showing a control circuit of the device of the present embodiment.

FIG. 19 is an essential part cross-sectional view showing a state where a disk mounting error has been caused;

FIG. 20 is an essential part cross-sectional view showing a normal disc mounting state.

FIG. 21 is a flowchart for explaining the operation of the apparatus according to the embodiment.

DESCRIPTION OF SYMBOLS 20 Stocker part 21 to 26 Disk holder 30 Disk transport mechanism 31 Drive side disk guide part 32 Fixed side disk guide part 33 Belt 34 Friction sheet 40 Arm 40A Engaging concave part 41 Spring 50 Optical mechanism 51 Turntable 51A Magnet 51B Centering part 52 Optical head 60 Clamper 60A Shaft part 60B Magnetic plate 61 Clamper arm 62 Lock plate 64 Spring 70 Pulse encoder 71 Slit plate 101 Control circuit 102 RF amplifier 103 Signal Processing circuit 104 D / A conversion circuit D1 to D6 Disk M1 to M3 Drive mechanism S1 Switching mechanism De Disk outer peripheral surface Ds Spindle hole

Claims (3)

[Claims] 1. A disk reproducing apparatus for rotating a disk mounted on a turntable to reproduce the disk, wherein the disk is mounted in the turntable when the disk is mounted on the turntable. Means for applying a force in the direction of the disk plane to the disk, detecting means for detecting the movement of the disk in the mounted state,
A discriminating means for discriminating whether or not the disc is normally mounted on the table. 2. An eject control means for transferring the disc to an eject position for inserting and removing the disc when the discriminating means judges that the disc is not properly mounted on the turntable. 2. The disk reproducing apparatus according to claim 1, wherein: 3. The disc reproducing apparatus according to claim 1, further comprising: a disc for transferring the disc from one of an ejecting position for inserting and removing the disc and a storing position in the device to a reproducing position coaxial with the turntable. 2. The disk reproducing apparatus according to claim 1, further comprising a transfer unit, wherein the applying unit applies a force in the disk plane direction to the disk by the disk transfer unit.