JP3025286B2 - Changer type disc player - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a changer-type disc reproducing apparatus.

2. Description of the Related Art Conventionally, there has been known a changer-type disc reproducing apparatus in which a magazine in which a plurality of carriages on which discs are placed is inserted and a disc in the magazine can be selectively reproduced.

In this apparatus, when trying to play a disc that has not been inserted into the magazine, once remove the magazine from the apparatus, pull out the carriage from the magazine, place the disc to be played on the carriage, insert it into the magazine, and again. The operability was poor because the magazine had to be mounted on the device.

Therefore, as described in Japanese Utility Model Laid-Open Publication No. 62-195257, a changer-type reproducing apparatus further provided with a tray in which a carriage similar to a carriage in a magazine is inserted has been proposed, and the apparatus has been commercialized ( US-JVC XL-M70
1) and sold in the USA.

However, the above-described apparatus also has a drawback that a similar problem occurs when a disk in the magazine is taken out or replaced.

Therefore, the applicant of the present application has previously proposed a changer-type disc reproducing apparatus which solves this problem in Japanese Patent Application Nos. 1-21971-3.

In this apparatus, a stocker corresponding to a conventional magazine is arranged inside the apparatus, and a carriage is movable between a tray brought to a loading position (a position stored in the apparatus) and the stocker. Is brought to the eject position (a position protruding outside the apparatus), and the disc is placed on the carriage in the tray. Thereafter, the disc can be mechanically stored in the stocker together with the carriage.

[Problems to be Solved by the Invention] In this apparatus, in order to take out a plurality of disks stored in a stocker, an eject / load switch for moving a tray to an eject or load position, and a carriage are brought to a load position. The stock / unstock switch to move between the tray and the stocker, and the disk storage position selection switch to select the disk storage position must be operated in the correct order. To remove many disks one after another, press the key. The operation was complicated. In addition, since the user has to select the disk storage position where the disk is stored by looking at the display, an operation error is likely to occur.

[Means for Solving the Problems] The present invention provides a changer-type disc reproducing apparatus capable of ejecting a disc stored in a stocker by a simple operation. A disk storage unit having a plurality of disk storage positions and capable of storing a plurality of disks, a disk reproduction unit, an eject position for loading / unloading one disk outside the apparatus, and mounting the disk on the disk reproduction unit. Playback position,
A disk transfer means capable of transferring between a selected disk storage position among a plurality of disk storage positions, an eject / load key which is manually operated, and an
When the load key is operated, the first control means for controlling the operation of mounting the disk stored in the disk storage position storing the disk among the plurality of disk storage positions to the disk reproduction means; Second control means for controlling the operation of transferring the disc mounted on the disc playback means to the eject position when the disc is mounted and the eject / load key is operated;
Consists of

The second device of the present invention comprises a plurality of disk storage positions, a disk storage means capable of storing a plurality of disks, a disk reproducing means, an ejection position for loading and unloading one disk outside the apparatus, A disc transfer means capable of transferring between a reproduction position for mounting the disc reproduction means, and a selected disc storage position among a plurality of disc storage positions, and loading without loading a disc on the disc transfer means; A first control unit for controlling the operation of mounting the disk stored in the disk storage unit to the disk reproducing unit when receiving the instruction; and a state in which the disk is mounted on the disk reproducing unit and an ejection instruction is received. And second control means for controlling the operation of transferring the disc mounted on the disc reproducing means to the eject position.

[Operation] According to the above-described first device of the present invention, when the eject / load key is operated without mounting the disk on the disk transfer means, the disk storing the disk in the plurality of disk storage positions is operated. The disc stored in the storage position is mounted on the disc reproducing means. When the eject / load key is operated in a state where the disc is mounted on the disc reproducing means, the disc mounted on the disc reproducing means is transferred to the eject position.

According to the second apparatus of the present invention, when a load instruction is received without mounting a disk on the disk transfer unit, the disk stored in the disk storage unit is mounted on the disk reproducing unit. When an ejection instruction is received in a state where the disc is mounted on the disc reproducing means, the disc mounted on the disc reproducing means is transferred to the eject position.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(1) Description of Mechanism FIG. 1 schematically shows the mechanism of the apparatus of the present invention. A tray 7 is provided with a single-play carriage S having a disc mounting portion in a slot (not shown) from the left side of the drawing. The disc (not shown) on the carriage S is brought to a load position where standby can be performed.

The optical head base 11 mounts a spindle motor 9 on which a disk mounting table 8 is mounted and an optical head 10 which can be moved in an access direction to read information recorded on the disk, lifts the disk on the carriage S, and lifts the magnetic clamper. Has been brought to the clamped up position by 12.

A disk sensor 13 fixedly disposed below the tray 7 is for detecting the presence or absence of a disk on the carriage through openings (not shown) formed in the tray 7 and all the carriages.

On the other hand, a stocker 14 corresponding to a conventional magazine is provided in the apparatus so as to be vertically movable, and is located at a position S where a single play carriage S can be inserted into and removed from the rightmost slot in the uppermost slot 15 in FIG. Carriages 1 to 6 for changer play are inserted into the slots 16 to 21, respectively.

The tray / carriage moving mechanism 22 uses the tray motor 23 as a drive source, and protrudes from the front panel 24 and the load position (FIG. 2 (A)) where the tray 7 and the disc on the carriage inserted in the tray 7 can stand by. The disc is moved between an eject position where the disc can be placed thereon (FIG. 2 (B)), and only the carriage is further loaded and a store position where the disc is inserted into the slot of the stocker 14 (FIG. 2 (C)). Can be moved between.

The eject position detection switch 25 and the store position detection switch 27 detect the operation position of the tray / carriage moving mechanism 22 mechanically to detect the eject position and the store position, respectively. Is to detect the load position and the speed deceleration section when bringing it to the load position by optically detecting the operation position of the tray / carriage moving mechanism 22 (described in detail later).

The optical head base up / down mechanism 28 uses a clamp motor 29 as a drive source, and sets the optical head base 11 in an up position (FIG. 3A) and a down position (FIG. 3B) where the tray 7 and the carriage can move. , And while the optical head base 11 is kept at the down position, the locked state of the tray lock mechanism 30 is released by further operating in the direction of moving the optical head base 11 from the up position to the down position. Things. The tray lock mechanism 30 is locked by engaging with the tray 7 brought to the load position, thereby preventing the tray 7 from being displaced.

Up position detection switch 31, Down position detection switch
The lock release detection switch 32 and the lock release detection switch 33 detect the up position, the down position, and the lock release, respectively, by mechanically detecting the operating position of the optical head base vertical mechanism 28.

The stocker moving mechanism 34 uses a stocker motor 35 as a drive source, and moves the stocker 14 to a position S where the carriage S can be inserted and removed.
(FIG. 4A), position 1 where the carriage 1 can be inserted and removed.
(FIG. 4 (B)),..., The carriage 6 can be moved to a position 6 (FIG. 4 (G)) where the carriage 6 can be inserted and removed.

The stocker position detection sensor 36 detects each of the above positions by optically detecting the operation position of the stocker moving mechanism 34.
The engagement of the lower surface of the stocker 14 detects that the stocker 14 has dropped to a position substantially below the middle between the position S and the position 1.

(2) Description of Control Circuit Hereinafter, an operation control circuit of the above-described mechanism will be described with reference to FIG.

A stock switch 41, an eject / load switch 42, a reproduction switch 43, a stop switch 44, a carriage S selection switch 45, and a carriage 1-6 for selecting an operation mode.
The selection switch 46 has one end connected to the ground and the other end connected to the power supply + B via the resistors R1 to R6, respectively, and the stock signal ▼ and the eject / load signal ▲, respectively.
▼, playback mode signal ▲ ▼, stop mode signal ▲ ▼, carriage S selection signal, carriage 1
A -6 selection signal ▲ ▼ is output to the microcomputer 40.

The load position sensor 26, the disk sensor 13, and the stocker position sensor 36 are all connected at one end to the ground, and at the other end to a power supply + B via resistors R7 to R9, respectively. Disk detection signal ▲ ▼, stocker position signal ▲ ▼
Is output to the microcomputer 40.

The reference position detection switch 37, the down position detection switch 32, the eject position detection switch 25, and the store position detection switch 27 all have one end connected to the ground and the other end connected to the power supply + B via the resistors R10 and R12 to R14, respectively. Connected, respectively, reference position signal ▲ ▼, down position signal DOW
N, an eject position signal ▲ ▼, and a store position signal ▲ ▼ are output to the microcomputer 40. Only one end of each of the up position detection switch 31 and the unlock detection switch 33 is connected to the ground, and the other ends are both resistors.
It is connected to a power supply + B via R11 and outputs an up position signal UP to the microcomputer 40.

Therefore, as shown in FIG. 6, when the tray 7 is brought to the ejection position, the ejection position detection switch 25 is turned on and the ejection position signal ▼ becomes “L”. When the carriage is brought to the store position, the store position signal ▼ becomes “L” when the store position detection switch 27 is turned on. When the tray 7 or the carriage is brought to the speed deceleration sections S1 and S2 before and after the loading position, the load position signal ▲ ▼ once becomes “H” and then brought to the loading position section S3. And “L”. The disk sensor 13 can detect the presence or absence of a disk when the carriage is brought up to the disk detection section S4 wider than the load position section S3, and the disk detection signal ▲ ▼ indicates that the disk is on the carriage. It becomes “L” in the section S4.

On the other hand, as shown in FIG.
▼: When the optical head base 11 is brought to the up position, the up position detection switch 31 is turned on and becomes “L”, and when the lock of the tray lock mechanism 30 is released, the lock release switch 33 is turned on. It turns on and goes low again. Then, when the optical head base 11 is brought to the down position, the down position detection switch 32 is turned on and the down position signal ▼ becomes “L”.

In addition, as shown in FIG.
▼ becomes “L” every time the stocker 14 is brought to each of the above-mentioned positions S, 1 to 6, and the reference position signal ▲
▼ indicates that when the stocker 14 is lowered from substantially the middle between the position S and the position 1, the reference position detection switch 37 is turned on and becomes “L”.

The microcomputer 40 (FIG. 5) detects a change in the state of each of the above signals based on a flowchart described later, and sends a front signal FRONT and a rear signal REAR to a tray motor drive circuit 47 for driving the tray motor 23, and a clamp motor. Clamp-up signal to clamp motor drive circuit 48 that drives 29
A stocker up signal ST-UP and a stocker down signal ST-DOWN are output to a stocker motor drive circuit 49 for driving the stocker motor 35, and a stocker down signal ST-DOWN.

The tray motor drive circuit 47 is connected to the front signal FRONT
When the signal becomes "H", a voltage for rotating the tray motor 23 in the direction in which the tray 7 moves to the eject position is output. When the rear signal REAR becomes "H", the tray motor 23 is moved in the direction in which the tray 7 moves to the load position. Outputs the voltage to rotate.

When the clamp-up signal CL-UP becomes "H", the clamp motor drive circuit 48 outputs a voltage for rotating the clamp motor 29 in a direction in which the optical head base 11 moves to the up position, and the clamp-down signal CL-DOWN is output. When the voltage becomes “H”, a voltage for rotating the clamp motor 29 in the direction in which the optical head base 11 moves to the down position is output.

When the stocker up signal ST-UP becomes “H”, the stocker motor drive circuit 49 outputs a voltage for rotating the stocker motor 35 in the direction in which the stocker 10 moves to the position S,
When the stocker down signal ST-DOWN becomes “H”, the stocker 10
Outputs a voltage for rotating the stocker motor 35 in the direction to move to the position 6.

(3) Description of Flowchart Hereinafter, a flowchart showing a program executed by the microcomputer 40 will be described.

In the flowchart described below, D
(0) to D (6) are flags indicating the presence / absence of a disk in the carriages S and 1 to 6, respectively. For example, D (3) = 1 indicates that the carriage 3 has a disk. Also, m indicates the current position of the currently used carriage and stocker 14, and m =
0 indicates that the carriage S is in use and the stocker 14 is at the position S, m = 1 indicates that the carriage 1 is in use and the stocker 14 is at position 1,..., M = 6 that the carriage 6 is in use This indicates that the stocker 14 is at position 6. Further, a memory for storing such information is provided with a backup battery, and does not disappear even when the power of the apparatus is cut off.

9 (A) to 9 (D) show a flowchart in the stop state. In the loop of steps S1 to S5, the stock signal ▲ ▼ and the eject load signal ▲
▼, the fall of the reproduction mode signal 選 択, the carriage S selection signal, and the carriage 1-6 selection signal ▼ are detected.

When the stock switch 41 is operated, step S1 is YES
In step S6, n is set to 1, and in a loop of steps S7 to S9, it is determined whether D (1) is 0 in order from D (6). look for. If there is a carriage without a disc and step S7 becomes YES, the optical head base 7 is moved from the up position to the down position in subroutine L1.

The flowchart of the subroutine L1 is shown in FIG.
In step S10, the clamp-down signal CL-DOWN is set to "H" to lower the optical head base 11, and the falling of the down position signal ▼ is detected in the loop of step S11.
When the optical head base 11 moves down to the down position, step S11 becomes YES, and the clamp-down signal CL-DOWN is set to "L" in step S12 to stop the lowering of the optical head base 11.

When the subroutine L1 ends, the carriage at the load position is moved to the store position (in the stocker) in the subroutine L2.

A flowchart of the subroutine L2 is shown in FIG. 11,
In step S20, the rear signal REAR is set to "H" to move the carriage in the store direction, and the loop of step S21 detects the fall of the store position signal STORE. When the carriage moves to the store position, step S21 becomes YES, and in step S22, the rear signal REAR is set to "L" to stop the movement of the carriage.

When the subroutine L2 is completed, the stocker 14 is moved to the position n set in step S6 or S8 in subroutine L3.
(The position where the carriage n without the disc can be inserted and removed).

A flowchart of the subroutine L3 is shown in FIG.
In step S30, it is determined whether or not n is smaller than m. When the target position n of the stocker 14 is smaller than the current position m, that is, below the current position m, step S30 is YES and step S31 is performed.
To set the stocker down signal ST-DOWN to "H"
Is moved downward. Then, in the loop of steps S32 to S34, every time the falling of the stocker position signal ▼ is detected, 1 is subtracted from m, and it is detected that m is equal to n, ie, that the stocker 14 has moved to the target position n. Then, step S34 becomes YES, and in step S35, the stocker down signal ST-DOWN is set to "L" to stop the movement of the stocker 14.

When the target position n is higher than the current position m, step S30 becomes NO, and in step S36, the stocker up signal ST-UP is set to "H" to move the stocker 14 upward. Then, in the loop of steps S37 to S39, every time the falling of the stocker position signal 位置 is detected, 1 is added to m, and it is detected that m is equal to n, ie, that the stocker 14 has moved to the target position n. Then, the step S39 becomes YES, and in a step S40, the stocker up signal ST-UP is set to "L" to stop the movement of the stocker 14.

When the subroutine L3 is completed, the carriage is temporarily moved from the store position (inside the stocker) to the load position in the subroutine L4.

The flowchart of the subroutine L4 is shown in FIG. 13,
In step S50, the front signal FRONT is set to "H" to move the carriage in the ejecting direction, and the rising of the load position detection signal ▲ ▼ is detected in the loop of step S51. When the carriage moves to the speed deceleration section S1 (FIG. 6), step S51 becomes YES, and steps S52 to S60 determine
As shown in FIG. 22 (A), the load position detection signal
Until the falling of ▼ is detected, the front signal FR
The ONT is output as a pulse with a cycle of 10 ms and a duty of 50% to reduce the carriage moving speed and stop accurately at the load position.

When the subroutine L4 is completed, the tray lock mechanism 30 is unlocked by the optical head base moving mechanism 28 in the subroutine L5.

The flowchart of the subroutine L5 is shown in FIG.
In step S70, the clamp-down signal CL-DOWN is set to "H", the optical head base moving mechanism 28 is operated in a direction to lower the optical head base 11, and the falling of the up position signal ▲ ▼ is detected in the loop of step S71. . When the lock of the tray lock mechanism 30 is released and the unlock detection switch 33 is turned on, step S71 is YES, and in step S72, the clamp-down signal CL-DOWN is set to "L", and the operation of the optical head base moving mechanism 28 is performed. To stop.

When the subroutine L5 is completed, the tray 7 and the carriage are moved to the eject position in the subroutine L6.

The flowchart of the subroutine L6 is shown in FIG.
In step S80, set the front signal FRONT to “H” and set tray 7
And move the carriage in the eject direction
In the loop of S81, the falling of the load position signal ▲ ▼ is detected. Tray 7 and carriage are in speed reduction section S2
If the optical head base moving mechanism 28 moves in the ejecting direction until it exits (FIG. 6), the step S81 becomes YES, the clamp-up signal CL-UP is set to "H" in a step S82, and the optical head base 11 is raised. Is operated, and the rising of the up position signal ▲ ▼ is detected in the loop of step S83.

When the lock release detection switch 33 is turned off and the optical head base moving mechanism 28 operates until the tray lock mechanism 30 returns to the lockable position, step S83 is YES, and the clamp-up signal CL-UP is set to “ L "
To stop the operation of the optical head base moving mechanism 28,
Injection position signal ▲ in the loop of step S85
Detect the falling edge of ▼. When the tray 7 and the carriage have moved to the eject position, the front signal FRONT is set to "L" in step S86 to stop the movement.

When this subroutine L6 is completed, the flow proceeds to a later-described flowchart in an eject state (FIG. 18).

On the other hand, in the loop of steps S7 to S9, if all of the carriages without disks are searched in order from carriages 1 to 6, if there are disks, step S9 is YES, and the operation of the stock switch 41 is substantially ignored. Step S2
Proceed to.

Next, when the eject / load switch 42 is operated, step S2 becomes YES, and the subroutine L1 (first
0), the optical head base 7 is moved from the up position to the down position, and the tray lock mechanism 30 is unlocked by the optical head base moving mechanism 28 in subroutine L5 (FIG. 14). Then, the carriage is moved to the eject position, and the process proceeds to a flowchart (FIG. 18) in the eject state described later.

Next, when the playback switch 43 is operated, the step S3
In step S90, it is determined whether or not D (m) is 1, that is, whether or not there is a disk in the carriage currently in use. Proceed to the flowchart (FIG. 21).

On the other hand, if NO in step S90, n is set to 1 in step S92.
Then, in the loop of steps S93 to S95, it is determined whether or not the number from D (1) to D (6) is 1 in order, that is, the carriage with disk is searched from carriage 1 to 6 in order. If there is a carriage with a disc and step S93 is YES, the optical head base 11 is moved from the up position to the down position in subroutine L1 (FIG. 10), and subroutine L2
In FIG. 11, the carriage at the load position is moved to the store position (inside the stocker), and the subroutine L3 (FIG. 12) is performed.
To move the stocker 14 to the position n (the position where the carriage n with the disc can be inserted and removed) set in step S90 or S94, and move the carriage from the store position (inside of the stocker) to the load position in subroutine L4 (FIG. 13). The optical head base 11 is moved from the down position to the up position in the subroutine L7.

The flowchart of the subroutine L7 is shown in FIG.
In step S100, the optical head base 11 is raised by setting the clamp-up signal CL-UP to "H", and the falling of the up position signal ▲ ▼ is detected in the loop of step S101. When the optical head base 11 moves up to the up position, step S101 becomes YES, and in step S102, the clamp-up signal CL-UP is set to "L" to stop raising the optical head base 11.

When this subroutine L7 ends, the reproduction mode is set in step S91, and the flow proceeds to a flowchart (FIG. 21) in a reproduction state described later.

On the other hand, in the loop of steps S93 to S95, the carriages having a disk are sequentially searched from the carriages 1 to 6, but there is no disk, and if step S95 is YES, the operation of the reproduction switch 43 is substantially ignored, and the operation proceeds to step S4. move on.

Next, when the carriage S selection switch 45 is operated, step S4 becomes YES, and in step S110, whether m is 0 or not is determined.
That is, it is determined whether or not the currently used carriage is S. If YES, the carriage need not be changed, so that the operation of the carriage S selection switch 45 is substantially ignored, and the process proceeds to step S5.

On the other hand, if NO in step S110, the subroutine L1
The optical head base 11 is moved from the up position to the down position in (FIG. 10), the carriage at the load position is moved to the store position (in the stocker) in subroutine L2 (FIG. 11), and the stocker 14 is moved in subroutine L8. Move to position S.

The flowchart of the subroutine L8 is shown in FIG.
In step S120, the stocker down signal ST-DOWN is set to "H" to lower the stocker 14, and in steps S121 to S123, m is decremented by 1 each time the stocker position signal ▲ ▼ falls, while the stocker reference signal ▲ ▼ rises. When the falling is detected and the stocker 14 descends between the position S and the position 1 and the result of the step S123 becomes YES, the falling of the stocker position signal ▲ is detected in the loop of the step S124.
Then, when the stocker 14 descends to the position S, the step
S124 becomes YES, m is reset to 0 in step S125, and the stocker down signal ST-DOWN is set to "L" in step S126.
Then, the movement of the stocker 14 is stopped.

As described above, according to the subroutine L8, the value of m indicating the current position of the stocker is reset to 0 at the falling edge of the stocker position signal ▼ after the stocker reference signal ▼ becomes “L”. M
Value and the actual position of the stocker 14
If the stocker 14 is moved to the position S, it can be returned. Steps S121 and S122 correspond to the interrupt processing, and even during the movement of the stocker 14 to the S position,
The value of m is provided so as to always indicate the position of the stocker 14.

When the subroutine L8 ends, the subroutine L4 (the thirteenth
(FIG. 16), the carriage S is moved from the store position (inside the stocker) to the load position, and the optical head base 7 is moved from the down position to the up position in subroutine L7 (FIG. 16), and the process proceeds to step S5.

Next, when the carriage 1-6 selection switch 46 is operated, step S5 becomes YES, and in step S130, it is determined whether or not m is 0, that is, whether or not the currently used carriage is S. If YES, n is set to 1 in step S131, and D (6) is sequentially executed from D (1) in the loop of steps S132 to S134.
1 or not, that is, in order from the carriage 1, up to 6 carriages are searched for a carriage with a disk.

There is a carriage with a disk and step S132 is YES
, The optical head base 11 is moved from the up position to the down position in the subroutine L1 (FIG. 10), and the carriage S at the load position is moved to the store position (in the stocker) in the subroutine L2 (FIG. 11). Subroutine L3
In FIG. 12 (FIG. 12), the stocker 14 is moved to the position n set in step S131 or S133 (a position where the carriage n with a disc can be inserted and removed), and the subroutine L4 (13
The carriage is moved from the store position (inside of the stocker) to the load position in FIG. 7), the optical head base 11 is moved from the down position to the up position in subroutine L7, and the process returns to step S1 described above.

On the other hand, if there is no disk in all of the carriages 1 to 6 and the above step S134 is YES, the operation of the carriage 1-6 selection switch 45 is substantially ignored, and the process returns to step S1.

Also, if NO in step S130 described above, step
In step S135, n is set to m + 1, and in the loop of steps S136 to S140, a carriage with a disk is searched from the carriage n to the carriage m-1 in order from the carriage n. For example, when m is 2 (the carriage 2 is being used), a carriage with a disk is searched for in the order of the carriages 3, 4, 5, 6, and 1.

There is a carriage with a disc and step S137 is YES
, The optical head base 11 is moved from the up position to the down position in subroutine L1 (FIG. 10), and the carriage at the load position is moved to the store position (in the stocker) in subroutine L2 (FIG. 11). L3 (No.
In FIG. 12), the stocker 14 is moved to a position n (a position where the carriage n with a disc can be inserted / removed) set in any of steps S135, S138 and S140, and a subroutine L4
The carriage is moved from the store position (inside the stocker) to the load position in (FIG. 13), the optical head base 11 is moved from the down position to the up position in subroutine L7 (FIG. 16), and the process returns to step S1.

On the other hand, the carriage 1 other than the carriage m currently in use
If there is no disc in ~ 6 and step S136 is YES,
The operation of the carriage 1-6 selection switch 45 is substantially ignored, and the process returns to step S1.

Flowchart in Eject State FIGS. 18A to 18C show a flowchart in the eject state. In the loop of steps S150 to S153, the stock signal ▲ ▼, the eject load signal ▲ ▼, and the reproduction mode signal ▲ ▼ rise. Descending and rising of the eject position signal ▲ ▼ are detected.

When the stock switch 41 is operated, step S150 is YE
In step S160, it is determined whether or not m is 0, that is, whether or not the currently used carriage is S. Since the carriage S is basically for single play and is not moved directly from the eject position to the store position, if the step S160 becomes YES, the operation of the stock switch 41 is substantially ignored and the process proceeds to the step S151. move on.

On the other hand, if the carriage is not S but NO in step S160, the sub-routine L9 moves the tray 7 to the load position and moves the carriage to the store position.

The flowchart of the subroutine L9 is shown in FIG.
In step S180, the rear signal REAR is set to "H", the tray 7 and the carriage are moved in the store direction, and in step S181, the falling of the load position signal ▼ is detected.

Then, the tray 7 and the carriage are moved to the load position section S3.
(FIG. 6), step S181 is YES, and in step S182, it is detected whether or not the disk detection signal “is“ L ”, that is, whether or not the disk is present on the carriage. In step S183, D (m) is set to 1
If the answer is NO, D (m) is set to 0 in step S184, and it is detected in the loop of step S185 whether or not the store position signal ▼ has fallen.

The carriage moves to the store position, and step S185
Is YES, the rear signal REAR is set to "L" in step S186, and the movement of the carriage is stopped.

When subroutine L9 ends, D (m) is determined in step S161.
Is determined to be 1 or not. If YES, n is set to 1 in step S162, and in the loop of steps S163 to 165, it is determined whether D (1) is 0 in order from D (6), that is, carriage Search for a carriage without a disk up to 6.

There is a carriage without a disc and step S163 is YES
Then, the stocker 14 is moved to the position n (a position where the carriage n without a disc can be inserted and removed) set in step S162 or S164 in the subroutine L3 (FIG. 12), and the carriage is moved in the subroutine L4 (FIG. 13). Is temporarily moved from the store position (inside of the stocker) to the load position, the tray lock mechanism 30 is unlocked by the optical head base moving mechanism 28 in subroutine L5 (FIG. 14), and then in subroutine L6 (FIG. 15). The tray 7 and the carriage are moved to the eject position, and the process proceeds to step S151.

On the other hand, in the loop of steps S163 to S165, if all of the carriages without a disk are sequentially searched from carriages 1 to 6, there are disks, step S165 becomes YES, n is set to 1 in step S166, and subroutine L3 is executed. (FIG. 12) the stocker 14 is moved to the position 1 and the subroutine L4 (FIG. 13) moves the carriage 1 from the store position (inside the stocker) to the load position.
In L7, the optical head base 11 is moved from the down position to the up position, and the process proceeds to the above-described stopped state flowchart (FIG. 9).

Also, if the above-mentioned step S161 becomes NO, the step
In S167, n is set to 1 and D1 is set in a loop of steps S168 to 170.
From the carriage 1 to D6, ie, from the carriage 1 to the carriage 6, the carriage with the disk is searched from the carriage 1 to the carriage 6.

There is a carriage with a disk and step S168 is YES
Then, the stocker 14 is moved to the position n (a position where the carriage n with a disc can be inserted and removed) set in step S167 or S169 in the subroutine L3 (FIG. 12), and the carriage is moved in the subroutine L4 (FIG. 13). Is temporarily moved from the store position (inside of the stocker) to the load position, and the optical head base 11 is moved from the down position to the up position in subroutine L7, and the process proceeds to the above-described stopped state flowchart (FIG. 9).

On the other hand, in the loop of steps S168 to S170, if the carriages with disks are searched in order from the carriages 1 to 6 and there are no disks, step S170 is YES, and the stocker 14 is positioned in the subroutine L8 (FIG. 17). S, the carriage is moved from the store position (inside of the stocker) to the load position in subroutine L4 (FIG. 13), and the optical head base 11 is moved from the down position to the up position in subroutine L7. Go to the flowchart in the state (FIG. 9).

Next, when the eject / load switch 42 is operated or the tray at the eject position is pushed in the loading direction and the eject position detection switch 25 is turned off, the step S151 or S152 becomes YES, and the tray 7 and the carriage are set in the subroutine L10. Is moved from the eject position to the load position.

The flowchart of the subroutine L10 is shown in FIG. 20, and in step S190, the rear signal REAR is set to "H" to set the tray 7
And the carriage is moved in the store direction, and step S191 is performed.
The rising of the load position signal ▲ ▼ is detected in the loop of.

When the tray 7 and the carriage move to the speed deceleration section S2 and step S191 becomes YES, steps S192 to S200
As a result, the rear signal REAR as shown in FIG.
With a period of 10 ms and a pulse output with a duty ratio of 50% to reduce the moving speed of the tray 7 and the carriage,
The falling of the load position signal ▲ ▼ is detected.

Then, the tray 7 and the carriage are moved to the load position section S3.
When moving to, step S195 or S199 becomes YES,
The movement of the tray 7 and the carriage is stopped.

When the subroutine L10 ends, it is detected in step S210 whether or not the disk detection signal ▼ is “L”, that is, whether or not a disk is present on the carriage.

There is a disc on the carriage and step S210 is YES
In step S217, D (m) is set to 1 and the optical head base 11 is moved from the down position to the up position in subroutine L7 to clamp the disk on the carriage.
The process proceeds to the flowchart in the above-mentioned stopped state (FIG. 9).

On the other hand, there is no disc on the carriage and step S210
Is NO, D (m) is set to 0 in step S211 and it is determined in step S212 whether or not m is 0, that is, whether or not the currently used carriage is S.

If the currently used carriage is S and step S212 is YES, the optical head base 11 is immediately moved from the down position to the up position in the subroutine L7, and the process proceeds to the above-described stopped state flowchart (FIG. 9).

On the other hand, if the currently used carriage is not
If 12 is NO, the subroutine L2 (FIG. 11) moves the carriage at the load position to the store position (in the stocker), sets n to 1 in step S213, and sets steps S214 to S216.
In the loop from D (1) to D (6) in order, that is, the carriage with disk is searched from carriage 1 to 6 in order.

There is a carriage with a disc and step S214 is YES
Is reached, the stocker 14 is moved to the position n (a position where the carriage n with a disc can be inserted and removed) set in step S213 or S215 in subroutine L3 (FIG. 12), and the carriage is moved in subroutine L4 (FIG. 13). Is temporarily moved from the store position (inside of the stocker) to the load position, and the optical head base 11 is moved from the down position to the up position in subroutine L7, and the process proceeds to the above-described stopped state flowchart (FIG. 9).

On the other hand, in the loop of steps S214 to S216, if the carriages with disks are searched in order from carriages 1 to 6 and there are no disks, step S216 results in YES and the stocker 14 is moved to position in step L8 (FIG. 17). S, the carriage is moved from the store position (in the stocker) to the load position in subroutine L4 (FIG. 13), and
In the subroutine L7 (FIG. 16), the optical head base 11 is moved from the down position to the up position, and the process proceeds to the above-described stopped state flowchart (FIG. 9).

Next, when the reproduction switch 43 is operated, step S153 is performed.
Is YES, the tray 7 and the carriage are moved from the eject position to the load position in the subroutine L10 (FIG. 20), and in a step S220, it is determined whether or not the disk detection signal ▼ is “L”, that is, the disk is loaded on the carriage. It detects whether there is.

There is a disc on the carriage, and step S220 is YES
, D (m) is set to 1 in step S221, the optical head base 11 is moved from the down position to the up position in subroutine L7 (FIG. 16), and a reproduction mode is instructed in step S222. Go to the flowchart in.

On the other hand, there is no disc on the carriage and step S220
Is NO, in step S223, D (m) is set to 0, and in step S224, it is determined whether or not m is 0, that is, whether or not the carriage currently in use is S. Is YES, the optical head base 11 is moved from the down position to the up position in the subroutine L7 (FIG. 16), and then the flow proceeds to the above-described stopped state flowchart.

On the other hand, if the carriage currently in use is not S,
If NO in S224, n is set to 1 in step S225, and in a loop of steps S226 to 228, it is determined whether D (1) is 1 in order from D (6), that is, whether there is a disk from carriage 1 to 6 in order from carriage 1 Look for the carriage.

If there is a carriage with a disc and step 226 is YES, the carriage at the load position is moved to the store position (inside the stocker) in subroutine L2 (FIG. 11), and the stocker 14 is moved to step S225 in subroutine L3 (FIG. 12). Alternatively, the carriage is moved to the position n (the position at which the carriage n with the disc can be inserted and removed) set by S227, and the carriage is moved from the store position (in the stocker) to the load position in subroutine L4 (FIG. 13). Subroutine L7
After the optical head base 11 is moved from the down position to the up position in FIG. 16 (FIG. 16), the process proceeds to the above-described stopped state flowchart.

On the other hand, in the loop of steps S226 to S228, if the carriages having a disk are sequentially searched from the carriages 1 to 6 but none of the carriages have a disk, step S228 is YES and the subroutine L2 (FIG. 11) is in the load position. The carriage is moved to the store position (inside the stocker), and the stocker 14 is moved to the position S in a subroutine L8 (FIG. 17).
After moving the carriage from the store position (inside the stocker) to the load position in subroutine L4 (FIG. 13), and moving the optical head base 11 from the down position to the up position in subroutine L7 (FIG. 16), The process proceeds to the flowchart in the stopped state.

Flowchart in Reproduction State FIGS. 21 (A) to (D) show a flow chart in the reproduction state. In the loop of steps S230 to S235, the stock signal ▲ ▼ and the eject load signal ▲
▼, the stop mode signal ▲ ▼, the carriage S selection signal, the falling of the carriage 1-6 selection signal ▲ ▼, and the end of disk reproduction are detected.

When the stock switch 41 is operated, step S230 is YE
It becomes S, n is set to 1 in step S240, and step S241
In the loop from S243, it is determined whether D (6) is 0 in order from D (1), that is, a carriage without disk is searched from carriage 1 to 6 in order.

There is a carriage without a disc and step S241 is YES
Then, after instructing the stop mode in step S244, the optical head base 11 is moved from the up position to the down position in subroutine L1 (FIG. 10), and
(FIG. 12), the carriage at the load position is moved to the store position (inside the stocker), and the stocker 14 is moved to the position n set in step S240 or S242 in subroutine L3 (FIG. 12).
(The position where the carriage n without the disc can be inserted / removed), and once in subroutine L4 (FIG. 13) the carriage is moved from the store position (inside the stocker) to the load position.
Optical head base moving mechanism in subroutine L5 (Fig. 15)
The lock of the tray lock mechanism 30 is released by 28, and the tray 7 and the carriage are moved to the eject position in a subroutine L6 (FIG. 15), and the process proceeds to the above-described flowchart in the eject state (FIG. 18).

On the other hand, in the loop of steps S241 to S243, if there is a disk in all of the carriages without a disk in order from carriages 1 to 6, a YES is obtained in step S243, and the operation of the stock switch 41 is substantially ignored. Proceed to step S231.

Next, when the eject / load switch 42 is operated, the step S231 becomes YES, the stop mode is instructed in the step S245, and the optical head base 11 is moved from the up position to the down position in the subroutine L1 (FIG. 10). After the tray lock mechanism 30 is unlocked by the optical head base moving mechanism 28 in the subroutine L5 (FIG. 15), the tray 7 and the carriage are moved to the eject position in the subroutine L6. (Fig. 18).

Next, when the stop switch 44 is operated, step S232 is performed.
YES, after instructing the stop mode in step S246,
The process proceeds to the flowchart in the above-mentioned stopped state (FIG. 9).

Next, when the carriage S selection switch 45 is operated, step S233 is YES, and in step S250, it is determined whether or not m is 0, that is, whether or not the currently used carriage is S. Then, since it is not necessary to change the carriage, the operation of the carriage S selection switch 45 is substantially ignored, and the process proceeds to step S234.

On the other hand, if NO in step S250, the stop mode is set in step S251, and the optical head base 11 is moved from the up position to the down position in subroutine L1 (FIG. 10).
In subroutine L2 (FIG. 11), the carriage at the load position is moved to the store position (inside the stocker), in subroutine L8 (FIG. 17), the stocker 14 is moved to position S, and in subroutine L4 (FIG. 13), the carriage is moved. S is moved from the store position (inside the stocker) to the load position, and the optical head base 11 is moved from the down position to the up position in subroutine L7 (FIG. 16), and D (0) becomes 1 in step S252.
It is determined whether or not there is a disc on the carriage S.

There is a disc on carriage S, and step S252 is YE
When S is reached, the reproduction mode is set in step S253, and the process proceeds to step S234. On the other hand, if there is no disc on the carriage S and the result of step S252 is NO, the process proceeds to the above-described flowchart in the stopped state (FIG. 9).

Next, when the carriage 1-6 selection switch 46 is operated, step S234 is YES, and in step S260, it is determined whether or not m is 0, that is, whether or not the currently used carriage is S. If YES, n is set to 1 in step S261,
In the loop of steps S262 to S264, it is determined whether or not the number is 1 from D1 to D6 in order from the D1.

There is a carriage with a disc and step S262 is YES
Then, after instructing the stop mode in step S280, the optical head base 11 is moved from the up position to the down position in subroutine L1 (FIG. 10), and
The carriage S at the load position is moved to the store position (inside of the stocker) in FIG. 7 and the stocker 14 is moved in the subroutine L3 (FIG. 12) to the position n (insertion / removal of the carriage n with disk) set in step S261 or S263. Possible position), the carriage is moved from the store position (inside the stocker) to the load position in subroutine L4 (FIG. 13), and the optical head base 11 is moved from the down position to the up position in subroutine L7. After instructing the reproduction mode in step S281, the process proceeds to step S235.

On the other hand, if there is no disk in all of the carriages 1 to 6 and the above-described step S264 is YES, the operation of the carriage 1-6 selection switch 45 is substantially ignored, and the process proceeds to step S235.

In addition, the carriage is not S, but the above-described step S260 is performed.
If NO, n is set to m + 1 in step S265, and a loop with a disk is searched from carriage n to carriage m-1 in order from the carriage n in a loop of steps S266 to S270.

There is a carriage with a disc and step S267 is YES
Then, after the stop mode is set in step S280, the optical head base 11 is moved from the up position to the down position in subroutine L1 (FIG. 10), and subroutine L2 (FIG. 11)
To move the carriage at the load position to the store position (inside the stocker), and use the subroutine L3 (Fig. 12) to
14 is moved to a position n (a position where the carriage n with a disc can be inserted and removed) set by any of steps S265, S268, and S270, and the carriage is stored in the storage position (in the stocker) in subroutine L4 (FIG. 13). From the optical head base 11 in the subroutine L7 (Fig. 16).
Is moved from the down position to the up position, and after instructing the reproduction mode in step S281, the process proceeds to step S235.

On the other hand, the carriage 1 other than the carriage m currently in use
When there is no disc in ~ 6 and step S266 becomes YES,
The operation proceeds to step S235, substantially ignoring the operation of the carriage 1-6 selection switch 45.

Next, based on a signal from a signal processing circuit (not shown),
When it is detected that the reproduction of the last song has been completed, step S2
35 is YES, the stop mode is set in step S290, and it is determined in step S291 whether or not m is 0, that is, whether or not the carriage currently in use is S.

If the carriage is S and step S291 is YES, the process proceeds to the above-described flowchart in the stopped state (FIG. 9).

On the other hand, if the carriage is not S and step S291 becomes NO, n is set to m + 1 in step S292, and steps S293 to 29 are performed.
In the loop of 5, a carriage with a disk is searched from the carriage n to the carriage 7 in order.

There is a carriage with a disc, and step S293 is YE
In S, the optical head base 11 is moved from the up position to the down position in the subroutine L1 (FIG. 10), and the carriage at the load position is moved to the store position (in the stocker) in the subroutine L2 (FIG. 11). Subroutine L3
In FIG. 12 (FIG. 12), the stocker 14 is moved to the position n set in step S292 or S294 (position where the carriage n with the disc can be inserted and removed), and the sub-routine L4 (FIG. 13) moves the carriage to the store position (stocker). In), the optical head base 11 is moved from the down position to the up position in a subroutine L7 (FIG. 16). In step S296, whether D (m) is 1 or not, that is, the carriage m
Determine if there is a disc on top.

Mostly, step S293 is YES, and the process has proceeded to step S296, so step S296 always becomes YES. After instructing the reproduction mode in step S297, the above-described step S2
Return to 30.

On the other hand, in the loop of steps S293 to S295, the carriage with the disk is searched from the carriage n to the carriage 7 in order, but there is no carriage with the disk, and if YES in step S295, the optical head base is set in the subroutine L1 (FIG. 10). 11 is moved from the up position to the down position, the carriage at the load position is moved to the store position (inside the stocker) in subroutine L2 (FIG. 11), and the stocker 14 is moved to position S in subroutine L8 (FIG. 17). Let
In subroutine L4 (FIG. 13), the carriage is temporarily moved from the store position (in the stocker) to the load position.
In subroutine L7 (FIG. 16), the optical head base 11 is moved from the down position to the up position, and D is set in step S296.
It is determined whether or not (m) is 1, that is, whether or not there is a disk on the carriage m.

Then, if there is a disc on the carriage S, step S296 becomes YES, the reproduction mode is instructed in step S297, and the process returns to step S230 described above.

On the other hand, if there is no disc on the carriage S, step
S296 is NO, and the process proceeds to the above-described stopped state flowchart (FIG. 9).

(4) Description of Operation Hereinafter, an operation example of the device of the present invention will be described with reference to the above-described flowchart.

First, the operation when the stock switch 24 is operated to accommodate six disks will be described. As shown in FIG. 23 (A), the carriage S has been brought to the loading position, and no disc has been placed on all the carriages.

When the stock switch 41 is operated, the microcomputer 40 advances the flowchart in the stopped state shown in FIG. 9A to steps S1, S6, S7 and subroutine L1, and moves the optical head base 11 to the down position in subroutine L1 ( (FIG. 23 (B)), the carriage S is in the store position in the subroutine L2 (FIG. 23 (C)), the stocker 14 is in the position 1 in the subroutine L3 (FIG. 23 (D)), and the carriage is in the subroutine L4. 1 is moved to the loading position (FIG. 23 (E)).

Then, the lock of the tray 7 is released in a subroutine L5 (not shown), and the tray 7 and the carriage 1 are moved to the eject position by a subroutine L6 (FIG. 23 (F)).

When the disk D is placed on the carriage 1 moved to the eject position (FIG. 23 (G)) and the stock switch 41 is operated again, the microcomputer 40 operates in the eject state shown in FIG. 18 (A). Step through the flowchart
The process proceeds to S150, S160, subroutine L9, and in the subroutine L9, the tray 7 is moved to the load position (FIG. 23 (H)), and the carriage 1 is moved to the store position (FIG. 23 (I)). In addition,
When the tray 7 and the carriage 1 have moved to the load position (FIG. 23 (H)), the presence or absence of a disk is checked in step S182 (FIG. 19), and D (1) indicating the presence / absence of a disk in the carriage 1 is determined in step S183. Memory 1 (with disk).

Accordingly, the microcomputer 40 proceeds to steps S161, S162, and S163, this time n is 2 and step S163 is YES, the stocker 14 is moved to the position 2 in the subroutine L3 (FIG. 23 (J)), and the carriage 2 is moved in the subroutine L4. The tray 7 is moved to the load position (FIG. 23 (K)), the lock of the tray 7 is unlocked in a subroutine L5 (not shown), and the tray 7 and the carriage 2 are moved to an eject position in a subroutine L6 (FIG. 23 (L)). ).

When the disk D is mounted on the carriage 2 moved to the eject position (FIG. 23 (M)) and the stock switch 41 is operated again, the carriage on which the disk is mounted is moved to the stocker in the same manner as described above. The carriage, which is housed in 14 and has no disk, is moved to the eject position.

Then, the last carriage 6 is moved to the eject position (FIG. 23 (N)), and after the disk D is mounted (FIG.
23 (O), when the stock switch 41 is operated again, the tray 7 is moved to the load position and the carriage 6 is moved to the store position in the subroutine L9 in the same manner as described above (see FIG.
23 (Q). When the tray 7 and the carriage 6 pass the load position (FIG. 23 (P)), step S183
(FIG. 19) D indicating the presence or absence of a disc on the carriage 6
(6) is stored as 1 (there is a disk).

Accordingly, the microcomputer 40 stores D (1) to D (6) as 1 and stores YES in step S165, sets n to 1 in step S166, and then moves the stocker 14 to position 1 in subroutine L3. (FIG. 23 (R)), the carriage 1 is moved to the load position in the subroutine L4 (FIG. 23 (S)), and the optical head base 11 is moved to the up position in the subroutine L7.
The disk D on the carriage 1 is on standby (FIG. 23 (T)), and the flowchart in the stopped state (FIG. 9)
To wait for the input of the operation switch.

Next, as shown in FIG. 24 (A), the operation when the stock switch 41 is operated without the disc being placed on the carriage 3 at the eject position will be described. The disk D is mounted only on the carriages 1 and 2.

When the stock switch 41 is operated, the microcomputer 40
The flowchart in the eject state shown in FIG. 18A proceeds to steps S150 and S160, a subroutine L9,
The carriage 3 is moved to the store position (FIG. 24 (C)). When the tray 7 and the carriage 3 have moved to the load position (FIG. 24 (B)), step S184
(FIG. 19) D indicating the presence or absence of a disk in the carriage 3
(3) is stored as 0 (no disk).

Therefore, the microcomputer 40 proceeds to steps S161, S167, and S168, where n = 1, step S168 becomes YES, and the subroutine L
3 moves the stocker 14 to position 1 (FIG. 24 (D)), moves the carriage 1 to the load position in subroutine L4 (FIG. 24 (E)), and moves the optical head base in subroutine L7.
11 is moved to the up position, the disk D on the carriage 1 is set in a standby state (FIG. 24 (F)), and the process proceeds to the flowchart in the stopped state to wait for input of an operation switch.

Next, as shown in FIG. 25 (A), an operation in the case where the stock switch 41 is operated without the disc being placed on the carriage 1 at the eject position will be described. It should be noted that no disks are mounted on all carriages.

When the stock switch 41 is operated, the microcomputer 40
The flowchart in the eject state shown in FIG. 18A proceeds to steps S150 and S160, a subroutine L9,
The carriage 1 is moved to the store position (FIG. 25 (C)). When the tray 7 and the carriage 1 have moved to the load position (FIG. 25 (B)), step S184 (step 19)
In the figure, D (1) indicating the presence or absence of the disk of the carriage 1 is
(No disk)

Therefore, the microcomputer 40 proceeds to steps S161, S167, and S168, and since D (1) to D (6) are all stored as 0, step S170 becomes YES and the stocker 1 is executed in the subroutine L8.
4 to the position S (FIG. 25D), the carriage S to the loading position in the subroutine L4 (FIG. 25E), and the optical head base 11 to the up position in the subroutine L7 (FIG. 25D). (F), the process proceeds to the flowchart in the stop state, and the input of the operation switch is awaited.

Next, as shown in FIG.
The operation when the stock switch 41 is operated during the reproduction of the upper disc will be described. It should be noted that no disks are mounted on all of the remaining carriages 1 to 6.

When the stock switch 41 is operated, the flow chart in the reproduction state shown in FIG.
The process proceeds to 30, S240, S241, and S244, and a stop mode is instructed in step S244 (FIG. 26 (B)), the optical head base 11 is moved to the down position in subroutine L1 (FIG. 26 (C)), and in subroutine L2. The carriage S is moved to the store position (FIG. 26 (D)), and the stocker 14 is moved to the position 1 (the
26 (E), the carriage 1 is moved to the load position in the subroutine L4 (FIG. 26 (F)).

Then, the tray 7 is unlocked in the subroutine L5 (not shown), and the tray 7 and the carriage 1 are moved to the eject position by the subroutine L6 (FIG. 26 (G)), and the operation switch waits for an input.

Next, an operation when the eject / load switch 42 is operated to place a disk on the carriage S will be described. Note that, as shown in FIG. 27 (A), the carriage S has now been brought to the load position.

When the eject / load switch 42 is operated, the microcomputer 40 proceeds to step S2 and the subroutine L1 in the stopped state shown in FIG. 9A, and moves the optical head base 11 to the down position in the subroutine L1 (step 27).
(B), the tray 7 is unlocked in a subroutine L5 (not shown), and the carriage S is moved to an eject position in a subroutine L2 (FIG. 27C).

When the disc D is mounted on the carriage S moved to the eject position (FIG. 27 (D)) and the eject / load switch 42 is operated again, the flowchart in the eject state shown in FIG. 18 (B) Step S1
51, proceeding to subroutine L10, the tray 7 and the carriage S are moved to the load position while performing the speed reduction process in the section S2 (FIG. 6) (FIG. 27 (E)).

The microcomputer 40 proceeds to steps S210 and S217, stores D (0) as 1 and moves the optical head base 11 to the up position in a subroutine L7, and stands by for the disk D on the carriage S (FIG. 27 (F)). ), The process proceeds to the flowchart in the stopped state (FIG. 9), and waits for input of an operation switch.

Next, as shown in FIG. 28 (A), without placing a disc on the carriage S at the eject position,
The operation when the eject / load switch 42 is operated will be described.

When the eject / load switch 42 is operated, the microcomputer 40 proceeds with the flowchart in the eject state shown in FIG. 18 (B) to step S151 and a subroutine L10 to set the tray 7 and the carriage S in the section S2 (FIG. 6). It is moved to the load position while performing the moving speed deceleration process (FIG. 28 (B)).

The microcomputer 40 proceeds to steps S210 and S211 to store D (0) as 0, and proceeds to step S212.
Therefore, step S212 is YES, and the optical head base 11 is moved to the up position in the subroutine L7 (FIG. 28 (C)), and the flowchart in the stopped state (FIG. 9)
To wait for the input of the operation switch.

Next, the operation when the eject switch 42 is operated to remove all the disks on the carriages 1 to 6 stored in the apparatus will be described. Incidentally, as shown in FIG. 29 (A), the carriage 1 is brought to the load position,
The disk D on the carriage 1 is on standby.

When the eject / load switch 42 is operated, the microcomputer 40 advances the flow chart in the stopped state shown in FIG. 9A to step S2 and subroutine L1, and moves the optical head base 11 to the down position in subroutine L1 ( 29B), the lock of the tray 7 is released in a subroutine L5 (not shown), and the carriage 1 on which the disk D is mounted is moved to an eject position in a subroutine L2 (FIG. 29C).

When the disk D is removed from the carriage 1 (FIG. 29 (D)) and the eject / load switch 42 is operated again, the flowchart in the eject state shown in FIG. Then, the tray 7 and the carriage 1 are moved to the load position while performing the process of reducing the moving speed in the section S2 (FIG. 6) (FIG. 29 (E)).

The microcomputer 40 proceeds to steps S210 and S211 and stores D (1) as 0, and proceeds to step S212 and subroutine L2,
The carriage 1 is moved to the store position (FIG. 29 (F)).

Then, the microcomputer 40 proceeds to steps S213 and S214,
Is 2, the step S214 becomes YES, and the stocker 14 is moved to the position 2 in the subroutine L3 (FIG. 29 (G)).
Moves the carriage 2 to the load position (FIG. 29 (H)), and moves the optical head base 11 to the up position in a subroutine L7, and stands by for the disk D on the carriage 2 (FIG. 29 (I)).

Hereinafter, in the same manner as described above, the eject / load switch
By operating the button 42, the carriage on which the disc is placed is moved to the eject position, and the disc is taken out.

When the eject / load switch 42 is operated in a state where the last disk D on the carriage 6 is in a standby state (FIG. 29 (J)), the microcomputer 40 is brought into a stop state shown in FIG. 9 (A). In step S2, the subroutine L1 proceeds to the subroutine L1, the optical head base 11 is moved to the down position in the subroutine L1 (FIG. 29 (K)), and the tray 7 is unlocked (not shown) in the subroutine L5. Moves the carriage 6 on which the disk D is mounted to the eject position (step
FIG. 29 (L)).

When the disk D is taken out of the carriage 1 moved to the eject position (FIG. 29 (M)) and the eject / load switch 42 is operated again, the flowchart in the eject state shown in FIG. 18 (B) will be described. In step S151, the process proceeds to subroutine L10, and the tray 7 and the carriage 1 are moved to the load position while performing the process of reducing the moving speed in the section S2 (FIG. 6) (FIG. 29 (N)).

The microcomputer 40 proceeds to steps S210 and S211 and stores D (6) as 0, and proceeds to step S212 and subroutine L2,
The carriage 6 is moved to the store position (FIG. 29 (F)).

Then, the microcomputer 40 proceeds to steps S213 and S214,
= 7, the step S216 becomes YES, the stocker 14 is moved to the position S in the subroutine L8 (FIG. 29 (P)), and the subroutine L4
Moves the carriage S to the load position (FIG. 29 (Q)), and moves the optical head base 11 to the up position in a subroutine L7 (FIG. 29 (R)). Then, it waits for the input of the operation switch.

Next, as shown in FIG.
A single play operation when the playback switch 43 is operated in a state where the upper disk is in a standby state will be described. The disk is mounted only on the remaining carriages 2, 4, and 6.

When the reproduction switch 43 is operated, the microcomputer 40 advances the flow chart in the stopped state shown in FIG. 9 (B) to steps S3, S90 and S91 and instructs the reproduction mode (30th step).
(B)), the flow proceeds to the flowchart in the reproduction state shown in FIG. 21, and waits for input of an operation switch or detection of completion of reproduction of the last music.

When the reproduction of the last song is completed, the microcomputer 40
The flow chart in the reproduction state shown in FIG. 21 (D) proceeds to steps S235 and S290, and a stop mode is instructed.
(FIG. 30 (C)), the step S291 becomes YES, the process proceeds to the flowchart in the stop state (FIG. 9), and the input of the operation switch is again waited.

Next, as shown in FIG.
A changer play operation when the playback switch 43 is operated in a state where the upper disk is in a standby state will be described. The disc is mounted only on the remaining carriages S, 4, and 6.

When the reproduction switch 43 is operated, the microcomputer 40 advances the flow chart in the stopped state shown in FIG. 9 (B) to steps S3, S90 and S91, and instructs the reproduction mode (step 31).
The process proceeds to the flowchart in the reproduction state shown in FIG. 21B and FIG. 21, and waits for input of an operation switch and detection of the end of reproduction of the last music.

When the reproduction of the last song is completed, the microcomputer 40
The flow chart in the reproduction state shown in FIG. 21 (D) proceeds to steps S235 and S290, and a stop mode is instructed.
The process proceeds to steps S291, S292, and S293 in FIG. 31 (C)).

The microcomputer 40 sets the optical head base 11 to the down position (No.
(FIG. 31 (D)), the carriage 2 is moved to the store position in the subroutine L2 (FIG. 31 (E)), and the stocker 14 is moved in the subroutine L3.
Is moved to the position 4 (FIG. 31 (F)), the carriage 4 is moved to the load position in the subroutine L4 (FIG. 31 (G)), and the optical head base 11 is moved to the up position in the subroutine L7. Standby for disk D (No.
FIG. 31 (H)). Then, the process proceeds to steps S296 and S297 to instruct a reproduction mode (FIG. 31 (I)), and waits for input of an operation switch and detection of end of reproduction of the last music.

When the reproduction of the last song is completed, the microcomputer 40 proceeds to steps S235 and S290 again, instructs the stop mode (the
The process proceeds to steps S291, S292, and S293 in FIG. 31 (J)).

The microcomputer 40 sets n to 6 and sets the optical head base 11 to the down position (step S293) in subroutine L1.
(FIG. 31 (K)), the carriage 4 is moved to the store position in the subroutine L2 (FIG. 31 (L)), and the stocker 14 is moved in the subroutine L3.
Is moved to the position 6 (FIG. 31 (M)), the carriage 4 is moved to the load position in the subroutine L4 (FIG. 31 (N)), and the optical head base 11 is moved to the up position in the subroutine L7. Standby for disk D (No.
FIG. 31 (O)). Then, the process proceeds to steps S296 and S297 to instruct the reproduction mode (FIG. 31 (P)), and waits for input of the operation switch and detection of the end of reproduction of the last music again.

When the reproduction of the last song is completed, the microcomputer 40 proceeds to steps S235 and S290 again, instructs the stop mode (the
The process proceeds to steps S291, S292, and S293 in FIG. 31 (Q).

The microcomputer 40 sets n to 7 and sets the optical head base 11 to the down position (step S295) in subroutine L1.
(FIG. 31 (R)), the carriage 6 is moved to the store position in the subroutine L2 (FIG. 31 (S)), and the stocker 14 is moved in the subroutine L8.
Is moved to the position S (FIG. 31 (T)), the carriage S is moved to the load position in the subroutine L4 (FIG. 31 (U)), and the optical head base 11 is moved to the up position in the subroutine L7. Standby for disk D (No.
FIG. 31 (V)). Then, the process proceeds to steps S296 and S297 to instruct the reproduction mode (FIG. 31 (W)), and waits for input of the operation switch and detection of the end of reproduction of the last music again.

When the reproduction of the last song is completed, the microcomputer 40 proceeds to steps S235 and S290, instructs the stop mode (FIG. 31 (X)), and the step S291 becomes YES, and the flowchart in the stop state (FIG. 9) And again waits for the input of the operation switch.

In the above operation example, when there is no disc on the carriage S, the carriage S is moved to the load position in the subroutine L4 (FIG. 32 (A)), and the optical head base 11 is moved to the up position in the subroutine L7 ( (FIG. 32 (B)) And since step S296 becomes NO,
The process proceeds to the flowchart in the stop state (FIG. 9), and the operation switch is again waited for input.

Next, as shown in FIG. 33 (A), the operation when the reproduction switch 43 is operated in a state where the carriage S without a disc is at the load position and the optical head base is brought to the up position. Will be described. The disc is mounted only on the remaining carriage 2.

When the reproduction switch 43 is operated, the microcomputer 40 advances the flow chart in the stopped state shown in FIG. 9B to steps S90, S92 and S93, where n is 2 and step 93 is YES.
, The optical head base 11 is moved to the down position (FIG. 33 (B)) in the subroutine L1, the carriage S is moved to the store position in the subroutine L2 (FIG. 33 (C)), and the stocker 14 is moved to the position 2 in the subroutine L3. (Fig. 33 (D)), subroutine
The carriage 2 is moved to the load position by L4 (FIG. 33 (E)), and the optical head base 11 is moved to the up position by subroutine L7, and the disk D on the carriage 2 is put on standby (FIG. 33 (F)). Then, in step S91, the reproduction mode is instructed (FIG. 33 (G)), and the flow advances to the flowchart in the reproduction state (FIG. 21) to wait for the input of the operation switch and the detection of the end of reproduction of the last music.

When the reproduction of the last music is completed, the microcomputer 40 proceeds to steps S235 and S290, instructs a stop mode (FIG. 33 (H)), and proceeds to steps S291, S292 and S293.

The microcomputer 40 sets n to 7 and sets the optical head base 11 to the down position (step S295) in subroutine L1.
33 (I), the carriage 2 is moved to the store position in the subroutine L2 (FIG. 33 (J)), and the stocker 14 is moved in the subroutine L8.
Is moved to the position S (FIG. 33 (K)), the carriage S is moved to the load position in the subroutine L4 (FIG. 33 (L)), and the optical head base 11 is moved to the up position in the subroutine L7 (FIG. 33). (M)). Then, since step S296 becomes NO, the flowchart in the stop state (FIG. 9)
And again waits for the input of the operation switch.

Next, as shown in FIG. 34 (A), the operation when the disc is placed on the carriage S at the eject position and the reproduction switch 43 is operated will be described. It should be noted that no disks are mounted on the carriages 1 to 6.

When the reproduction switch 43 is operated, the microcomputer 40 advances to the step S153 and the subroutine L10 in the flowchart in the eject state shown in FIG.
Then, the carriage S is moved to the load position while performing the processing for reducing the moving speed in the section S2 (FIG. 6) (FIG. 34 (B)).

Further, the microcomputer 40 proceeds to steps S220 and S221,
(0) is memorized as 1, the optical head base 11 is moved to the up position in the subroutine L7, and the disk D on the carriage S stands by (FIG. 34 (C)), and step S222 is performed.
The playback mode is instructed (FIG. 34 (D)), and the flow advances to the flowchart in the playback state (FIG. 21) to wait for input of an operation switch and detection of the end of playback of the last music.

When the reproduction of the last song is completed, the microcomputer 40
The flow chart in the reproduction state shown in FIG. 21 (D) proceeds to steps S235 and S290, and a stop mode is instructed.
In FIG. 34 (E), step S291 is YES, the flow proceeds to the flowchart in the stopped state (FIG. 9), and input of the operation switch is again waited.

Next, as shown in FIG. 35 (A), the operation when the disc is placed on the carriage 2 at the eject position and the reproduction switch 43 is operated will be described. A disk is mounted on the carriages S and 1.

When the reproduction switch 43 is operated, the microcomputer 40 advances to the step S153 and the subroutine L10 in the flowchart in the eject state shown in FIG.
Then, the carriage 2 is moved to the load position while performing the processing for reducing the moving speed in the section S2 (FIG. 6) (FIG. 35 (B)).

Further, the microcomputer 40 proceeds to steps S220 and S221,
(2) is stored as 1 and the optical head base 11 is moved to the up position in the subroutine L7, and the disk D on the carriage 2 is put on standby (FIG. 35 (C)), and step S222 is performed.
The playback mode is instructed (FIG. 35 (D)), and the flow advances to the flowchart in the playback state (FIG. 21) to wait for the input of an operation switch and the detection of the end of playback of the last music.

When the reproduction of the last song is completed, the microcomputer 40
The flow chart in the reproduction state shown in FIG. 21 (D) proceeds to steps S235 and S290, and a stop mode is instructed.
The process proceeds to steps S291, S292, and S293 in FIG.

The microcomputer 40 sets n to 7 and sets the optical head base 11 to the down position (step S295) in subroutine L1.
(FIG. 35 (F)), the carriage 2 is moved to the store position in the subroutine L2 (FIG. 35 (G)), and the stocker 14 is moved in the subroutine L8.
Is moved to the position S (FIG. 35 (H)), the carriage S is moved to the loading position in the subroutine L4 (FIG. 35 (I)), and the optical head base 11 is moved to the up position in the subroutine L7. Standby for disk D (No.
Fig. 35 (J). Then, the process proceeds to steps S296 and S297 to instruct the reproduction mode (FIG. 35 (K)), and waits for the input of the operation switch and the detection of the end of reproduction of the last music again.

When the reproduction of the last song is completed, the microcomputer 40 proceeds to steps S235 and S290, instructs the stop mode (FIG. 35 (L)), and the step S291 becomes YES, and the flowchart in the stopped state (FIG. 9) And again waits for the input of the operation switch.

In the above operation example, when there is no disc on the carriage S, the carriage S is moved to the load position in the subroutine L4 (FIG. 36 (A)), and the optical head base 11 is moved to the up position in the subroutine L7 ( (FIG. 36 (B)), and the step S296 becomes NO, the flow chart in the stop state (FIG. 9) proceeds, and the input of the operation switch is again waited.

Next, as shown in FIG. 37 (A), an operation when the reproduction switch 43 is operated without the disc being placed on the carriage 2 at the eject position will be described.
A disk is mounted on the carriages S and 1.

When the reproduction switch 43 is operated, the microcomputer 40 advances to the step S153 and the subroutine L10 in the flowchart in the eject state shown in FIG.
Then, the carriage 2 is moved to the load position while performing the moving speed reduction process in the section S2 (FIG. 6) (FIG. 37 (B)).

Further, the microcomputer 40 proceeds to steps S220 and S223,
(2) is stored as 0, and the process proceeds to S224, S225, and S226, where n is 1 and S226 is YES, the carriage 2 is moved to the store position in the subroutine L2 (FIG. 37 (C)), and the stocker is stored in the subroutine L8. 14 to position 1 (FIG. 37D), the carriage 1 to the loading position in subroutine L4 (FIG. 37E), and the optical head base 11 in subroutine L7.
Is moved to the up position, and the disk D on the carriage 1 is moved.
Is turned on (FIG. 37 (F)), and the flow advances to the flowchart in the stopped state (FIG. 9) to wait for the input of the operation switch.

Next, the operation when the reproduction switch 43 is operated without loading the disk on the carriage 1 at the eject position will be described. It should be noted that no disks are mounted on all the remaining carriages.

When the reproduction switch 43 is operated, the microcomputer 40 advances to the step S153 and the subroutine L10 in the flowchart in the eject state shown in FIG.
Then, the carriage 1 is moved to the load position while performing the process of reducing the moving speed in the section S2 (FIG. 6) (FIG. 38 (B)).

The microcomputer 40 proceeds to steps S220 and S223, stores D (1) as 0, and proceeds to S224, S225 and S226.
Is YES at S228, the carriage 1 is set to the store position in the subroutine L2 (FIG. 38 (C)), the stocker 14 is set to the position S in the subroutine L8 (FIG. 38 (D)), and the carriage S is loaded in the subroutine L4. (Fig. 38 (E)), and
In the subroutine L7, the optical head base 11 is moved to the up position, the flow proceeds to the flowchart in the stopped state (FIG. 9), and the input of the operation switch is again waited.

Next, as shown in FIG.
The operation when the carriage S selection switch 45 is operated in a state where the upper disk is on standby will be described. A disk is placed on the remaining carriages S, 2, and 6.

When the carriage S selection switch 45 is operated, the microcomputer 40 advances the flowchart in the stopped state shown in FIG. 9 (C) to steps S4 and S110, and a subroutine L1.
With the optical head base 11 in the down position (FIG. 39 (B)),
The subroutine L2 moves the carriage 3 to the store position (FIG. 39 (C)), and moves the stocker 14 to the position S (subroutine L8).
(D in FIG. 39), the carriage S is moved to the load position in the subroutine L4 (FIG. 39 (E)), and the optical head base 11 is moved to the up position in the subroutine L7.
The upper disk D stands by (FIG. 39 (F)), and waits for input of an operation switch.

Next, as shown in FIG.
The operation when the carriage 1-6 selection switch 46 is operated in a state where the upper disk is on standby will be described. The disk is mounted on the remaining carriages 2 and 6.

When the carriage 1-6 selection switch 46 is operated, the microcomputer 40 advances the flowchart in the stopped state shown in FIG. 9 (D) to steps S5, S130, S131 and S132,
When n is 2, step S132 becomes YES, and the optical head base 11 is moved to the down position in the subroutine L1 (FIG. 40 (B)).
The carriage S is moved to the store position in the subroutine L2 (FIG. 40 (C)), and the stocker 14 is moved to the position 2 (the
40 (D), the carriage 2 is moved to the load position in the subroutine L4 (FIG. 40 (E)), and the optical head base 11 is moved to the up position in the subroutine L7.
The upper disk D is put on standby (FIG. 40 (F)).

When the carriage 1-6 selection switch 46 is operated again, the microcomputer 40 proceeds to steps S5, S130, S135 and S136, n is 6, step S137 is YES, and the subroutine L
At 1 the optical head base 11 is at the down position (FIG. 40 (G)), at the subroutine L2 the carriage 2 is at the store position (FIG. 40 (H)), and at the subroutine L8 the stocker 14 is in the position 6 (FIG. 40). (I)), the carriage 6 is moved to the load position in the subroutine L4 (FIG. 40 (J)), and the optical head base 11 is moved to the up position in the subroutine L7, and the disk D on the carriage 6 is put on standby (see FIG. FIG. 40 (K)).

When the carriage 1-6 selection switch 46 is operated again, the microcomputer 40 proceeds to steps S5, S130, S135 and S136, n is 2 and step S137 is YES, and the subroutine L
At 1 the optical head base 11 is at the down position (FIG. 40 (L)), at the subroutine L2 the carriage 6 is at the store position (FIG. 40 (M)), and at the subroutine L8 the stocker 14 is at position 2 (FIG. 40). (N)), the carriage 6 is moved to the load position in the subroutine L4 (FIG. 40 (O)), and the optical head base 11 is moved to the up position in the subroutine L7, and the disk D on the carriage 2 is put on standby (see FIG. (Figure 40 (P)).

Hereinafter, in the same manner as above, the carriage 1-6 selection switch
Each time 46 is operated, the disks on carriages 2 and 6 are alternately put on standby.

As described above, the typical operation example of the device of the present invention has been described.
Flow chart in a stopped state shown in FIG.
It is understood by referring to the flowchart in the eject state shown in FIGS. 18 (A) to (C) and the flowchart in the reproduction state shown in FIGS. 21 (A) to (D), so that the description is omitted.

In addition, according to the above-mentioned flowchart, it is described in order to explain the principle operation, and changes can be made without departing from the gist of the present invention. In particular, once the switches 41 to 46 for selecting the operation mode are once operated, they will not be accepted again until the mechanism operation according to the flowchart ends, but in an actual product, the switches 41 to 46 are turned off. It goes without saying that the program is made to be acceptable even during the operation of the mechanism. In particular, since the carriage S selection switch 45 and the carriage 1-6 selection switch 46 are often operated before the end of the mechanism operation, the program is executed such that the mechanism operation based on the switch operation is reliably performed even during the operation. Is done.

For example, when the disk on the carriage 5 is in a standby state, the carriage S selection switch 45 is operated,
Even if the carriage 1-6 selection switch 46 is immediately operated twice, the disk on the carriage 2 is programmed to be in a standby state.

Further, the apparatus of the present invention can take various aspects without being limited to the above-described embodiment. For example, in the above-described embodiment, the tray 7 is moved between the eject position and the load position, and The mechanism for moving between the carriage load position and the store position is performed by a single tray / carriage moving mechanism 22, but the mechanism may be configured to be moved by different mechanisms.

Further, in the above embodiment, the optical head base is moved to the up position to clamp the disk on the carriage, but conversely, the carriage and the clamper are lowered to clamp the disk on the carriage. You may comprise.

Further, in the above apparatus, a total of seven carriages are used, but it is needless to say that the number of carriages is not limited.

[Effects of the Invention] As described above, according to the apparatus of the present invention, the disks in the disk storage means can be successively taken out by a simple operation. Also, there is no need to look at the display and select the disk storage position where the disk is stored,
There is no operation error.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing the mechanism of the apparatus of the present invention, FIG. 2 is an operation diagram showing the movement positions of the tray 7 and the carriage S, and FIG. 3 is an operation showing the movement positions of the optical head base 11. 4 is an operation diagram showing the movement position of the stocker 14, FIG. 5 is a block diagram showing an operation control circuit in the apparatus of the present invention, and FIG. 6 is a state of detection switches and detection signals with respect to the movement position of the carriage. FIG. 7 is a timing chart showing the state of the detection switch and the detection signal with respect to the movement position of the optical head base 11, and FIG. 8 is a timing chart showing the state of the detection switch and the detection signal with respect to the movement position of the stocker 14. ,
9 to 21 are flowcharts, FIG. 22 is a timing chart showing the state change of the front signal FRONT and the rear signal REAR with respect to the load position detection signal ▲ ▼, and FIG.
FIG. 40 to FIG. 40 show operation explanatory diagrams of the device of the present invention. Symbols S, 1 to 6: carriage, 7: tray, 8: disk mounting table, 9: spindle motor, 10: optical head, 11: optical head base, 12: magnet clamper, 13 …… Disk sensor, 14 …… Stocker, 15-21
… Slot, 22… Tray / carriage movement mechanism, 23
... Tray motor, 24 ... Front panel, 25 ... Eject position detection switch, 26 ... Load position detection sensor, 27 ... Store position detection switch, 28 ... Optical head base up / down mechanism, 29 ... Clamp motor, 30: Tray lock mechanism, 31: Up position detection switch, 32: Down position detection switch, 33: Lock release detection switch, 34: Stocker moving mechanism, 35: Stocker motor,
36 ... stocker position detection sensor, 37 ... reference position detection switch, 40 ... microcomputer, 41 ... stock switch,
42: Eject / load switch, 43: Reproduction switch, 44: Stop switch, 45: Carriage S selection switch, 46: Carriage 1-6 selection switch, 47: Tray motor drive circuit, 48: Clamp Motor drive circuit,
49 …… Stocker motor drive circuit, D …… Disk, R1 ~
R14 …… resistance.

Claims (5)

(57) [Claims] 1. A disk storage means having a plurality of disk storage positions and capable of storing a plurality of disks, a disk reproducing means, an eject position for loading and unloading one disk outside the apparatus, Playback position for attaching to the means,
And a disk transfer means capable of transferring between selected disk storage positions among the plurality of disk storage positions; an eject / load key which is manually operated; First control means for performing operation control such that when the eject / load key is operated, the disc stored in the disc storage position of the plurality of disc storage positions is mounted on the disc reproducing means; A second control means for controlling the operation of transferring the disc mounted on the disc reproducing means to the eject position when the disc is mounted on the disc reproducing means and the eject / load key is operated; And a changer-type disc reproducing apparatus. 2. A disk storage means having a plurality of disk storage positions and capable of storing a plurality of disks, a disk reproducing means, an eject position for loading and unloading one disk outside the apparatus, Playback position for attaching to the means,
A disk transfer means capable of transferring between a selected one of the plurality of disk storage positions; and a disk storage means when a load instruction is received without mounting a disk on the disk transfer means. First control means for controlling the operation of mounting the disk stored in the means on the disk reproducing means; and a disk mounted on the disk reproducing means, and upon receiving an eject instruction, the disk reproducing means A second control means for controlling the operation of transferring the mounted disc to the eject position. 3. The changer-type disc reproducing apparatus further comprises prohibiting operation control of the first control means when a predetermined disc storage position is selected from among the plurality of disc storage means. 3. The changer-type disc reproducing apparatus according to claim 1, further comprising means. 4. The changer-type disc reproducing apparatus further comprises, when the predetermined disc storage position is selected, whether or not a disc is stored in a disc storage position other than the predetermined disc storage position. 4. The changer-type disc reproducing apparatus according to claim 3, further comprising a single-play operation control means for performing operation control so that the disc is stopped after the reproduction of the disc transferred from the eject position is completed. . 5. The disc changer-type disc reproducing apparatus further comprises, when a disc storage position other than the predetermined disc storage position is selected, continues to reproduce the disc mounted on the disc reproducing means. 5. The changer-type disc reproducing apparatus according to claim 4, further comprising a changer play operation control means for performing operation control so as to continuously reproduce the disc in the means.