JPS58164058A - Disk player - Google Patents

Abstract

PURPOSE:To realize smooth performance of a program, by constituting the disk player of this invention in such a way that invalidity of the accessing operation is supported against the assignment of the same information group number or an information group number which is larger than the former to the same disk. CONSTITUTION:When a pickup 55 starts movement and searches an assigned music and the number of the assigned music is larger than the number of music recorded on a disk, namely, the assigned music is not recorded on the disk and the music number cannot be detected on the disk, the pickup 55 is returned to the home position by the operation of a pickup limiter switch 69b and, at the same time, the number of disk (slot) and the number of the assigned music are stored in a memory 1. Then, the disk is released from the clamped condition and returned to a disk containing section 32.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc playing device, and more particularly to a disc playing device that can accommodate a plurality of discs and can sequentially select any of the stored discs for continuous performance.

A jukebox is generally known as such a disc playing device. However, the main body of conventional jukeboxes is very large, and it is very troublesome to insert and remove discs from the disc storage compartment, making them unsuitable for use as home jukeboxes.
Most were used for commercial purposes. Also,
The structure required a special key to open and close the door when changing disks, etc., which was extremely disadvantageous in terms of usability. I didn't like it because I wanted to get a number.

Therefore, the present invention is extremely compact, allows easy attachment and detachment of discs, and allows smooth program play.
The object of the present invention is to provide a disc playing device that allows players to play a disc.

Recently, several types of means have been proposed to greatly increase the amount of information stored on a disc by digitally inputting a signal, compared to a conventional audio disc in which signals are inputted in an analog manner. In particular, the method of using a disk, generally called a compact disk, which uses laser light to pick up signals, has a small diameter of 42 cm, making it easy to handle and making it possible to make the performance space smaller. Furthermore, the playing time is 1 hour on one side, which is about 1.5 hours longer than the playing time on both sides of a conventional audio disc.
It can store twice the amount of information. Therefore, for example, 50 discs contain 1,000 songs with a playing time of 3 minutes.
Since the thickness of a compact disc is approximately 1.2111111, 50 discs will be 6 cm thick, and you can store as many as i ooo songs on it. By using compact discs in this way, it is possible to provide an extremely small jukebox that can be used in general households. By using the jukebox of this invention, there is no need to prepare a separate disc storage box to store many discs, and since it is possible to select and play discs without touching the discs, it can be used even by women and dwarfs. It will not damage the disk or damage the device.

A disc playing device according to the present invention includes a disc storage section that can accommodate a plurality of discs arranged in a predetermined pitch, a disc playing means that is movable in the disk arrangement direction of the disc storage section, and a positional relationship between the discs and the disc playing means. When playing a specified disk, the number of specified information groups becomes larger than the number of information groups recorded on the disk. detecting the disk number and the number of information groups in the storage means, and instructing to invalidate the access operation for specifying the number of information groups that is the same as or larger than the number of information groups stored on the disk thereafter. It is composed of 1. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the overall structure of a disc playing device according to the present invention. In the figure, reference numeral 4 denotes a main body of the device that can accommodate a plurality of discs 2 and automatically play the discs, and has a housing structure that allows other devices of approximately the same size, such as amplifiers and tuners, to be stacked on top of each other. There is. i
For example, a disk insertion opening 3 is formed at the front of the main body 4, and a disk storage section (rear) is provided near the insertion opening 3 so that the disk can be easily removed. A door 5 for closing the insertion port 3 is attached to the main body 4 so as to be openable and closable, and the door 5 is opened and closed by a door switch 1 provided on the front surface of the main body. 6
is an operation section that sends various commands to the device main body 4, and is separated from the 8N main body 1 and connected to the QU wired or wireless means, for example.

FIG. 2 shows the configuration of the operating section 6, in which (a) is a plan view, (b) is a front view including some parts, and (C) is a side sectional view. 95 to specify the disc number and track number you want to select, C number key 7, and ENT key 8.5' to register the specified number in memory.Do you want to play the disc sequentially from the first disc? Or ALL key to play all the songs on the specified disk 9. 5 TART key to start playing after memory registration is completed 10. NEXT to move to the next registered disk or song while playing a disk or song registered in memory Key 11. AGAIN key 12 to play again according to the contents registered in the memory.Furthermore, it is possible to enter the title, track number, etc. of the stored disc, and also to record the contents in connection with replacing the disc. A plurality of index plates 13 as changeable and easily searchable storage means. A plurality of index plates 13 are provided corresponding to the number of index plates 13 in order to detect the index plate being searched in conjunction with this plate 13. Index switch 14. 1 to 5 to specify the disc number separately from the number key 7 above.
Well, 15 index keys are included with each.

The index plate 13 allows the disc title, track list, etc. to be easily changed in connection with disc replacement.

In addition, both the device main body 4 and the operation section 6 have the following:
Disc IND16 and PROGRAM that display the specified or playing disc number and track number
IND 17. PLAY indicating that the play is in progress
IND18. After) 5TAN lights up after the carrier assembly stops at the predetermined position until it is ready to play.
D BY IND19, ACCESS INI that lights up while the carrier assembly and the pickup described below are moving to a predetermined position)20. Furthermore, there is provided a display section consisting of an ERRORIND 21 that lights up when there is no disc at the specified disc number position or when it is detected that the front and back sides have been stored incorrectly during a performance operation.

In addition, in the configuration described above, the operating section 6 in which the storage means and various operation keys are integrally formed is provided separately from the device main body 4; For example, the configuration may be such that it is installed only on the front surface.

FIG. 3 shows the disk performance 4i! according to the present invention! The internal configuration of i1F is shown, with (a) being a plan view, (b) being a front view, and (C) being a side view. In the figure, the outer periphery of the door 5 mentioned above is hidden by means such as painting,
On the left and right sides thereof, bearings 24a and 24 are fitted with support bins 23a and 23b fixed to the underbase 22, respectively.
It is equipped with b. Bearing 24a.

For example, a fan-shaped gear 25 is attached to one side 24a of 24b. Motor 2 as a drive source for opening and closing door 5
6 and a reduction mechanism 27 are fixed to the underbase 22, and the final stage gear 28 of the reduction mechanism 27 meshes with the sector gear 25.

A cam 30 having a recess 30a on the peripheral wall is fixed to the shaft 29 of the final stage gear 28, and a limiter switch 31a that detects the eye open field and the eye closed field at the door 5 by fitting into the recess 30a. , 31b is cam 3
It is in contact with the peripheral wall of 0.

Disc storage section 3 for storing a plurality of discs 2
As shown in a schematic perspective view in FIG. 4, the underbase 22 has a plurality of grooves 33 formed at a constant pitch.
A support base 34 fixed to the support base 34 and a plurality of partition plates 35 inserted into the grooves 33 of the support base 34 are provided, and a plurality of disks are vertically stored side by side in slots formed between the partition plates 35. The structure is as follows. The support base 34 is formed of a continuous integral member, and in addition to the groove portion 33 described above, supports the lower end of the inserted disk 2 at two points, for example, and has a support base 34 for preventing movement of the disk in the front-rear direction. For example, a pair of supporting members 36 and 37 are integrally provided at the front and rear. A pair of support members 36 and 37 are provided at the front (disk insertion) to restrict the free movement of the attached disk and to prevent the disk from falling forward due to disturbance etc.
The side member 36 is configured to be higher than the rear side member 37, and may be formed separately from the support base 34.

In the disk storage section 32, the disk is stored between two partition plates 35, which reduces friction caused by twisting between the disk and the partition plate when moving the disk, and also reduces the friction between the disk and the partition plate. To prevent damage, the partition plate 35 is attached to the guide wall 3 as shown in FIG.
8, and has a surface treatment such as Teflon coating on at least the surface of the contact portion with the disk. Further, the partition plate 35 has a tapered or curved shape at the front and rear of the guide wall 38 to facilitate the mounting of the disc and to serve as a guide when returning the disc from the performance position to the storage position. In particular, by forming a parallel portion 39 at the tip of the tapered portion 38a on the performance position side, the performance can be performed with the disc 2 positioned between the parallel portions 39 as shown in FIG. 5(b), so that the performance ends. The rear disk 2 can be reliably stored in the storage position.

In FIG. 3, the carrier 40 has a guide bar 42a,
42b and is movably supported. The carrier 40 is provided with a support guide 43 having a recessed portion on its upper surface for fitting and positioning a disc that is pulled out from the disc storage portion 32 by a slider during performance.

This support guide 43 supports the lower end of the disk at two points, for example, so that the center position of the disk is slightly lower than the center position of a clamper, which will be described later. The support guide 43 on the disk storage section 32 side is formed with an inclined surface 43a so that the disk can be moved smoothly. In addition. By making the opposite side also an inclined surface, even if the disc deviates rearward from the performance position during movement of the disc, it can be reliably returned to the normal performance position.

The carrier 40 is driven by a carrier drive motor 44 via a deceleration mechanism 45 and a wire 46 in the left-right direction in the figure. The wire 46 is attached to a pulley 147 connected to a reducer 4fft 45 and a 4fft attached to the underbase 22.
The carrier 40 is installed on the pulleys 48a to 48d.
Fixed. A carrier limit switch 49a that detects the limit position in the stone direction of the carrier 40;
49b is provided. Here, when the retracted position of the carrier 40, that is, the Baum position, is set to the right limit position in the figure, the switch 49a detects the home position of the carrier 40. Further, a carrier position detection sensor 50 for detecting the moving position of the carrier 40 is provided. The carrier position detection sensor 50 includes a slit plate 51 fixed to the underbase 22 and having a slit formed along the moving direction of the carrier 40 corresponding to the disk storage position of the disk storage section 32; A photocoupler 52 is mounted on the carrier 40 so as to sandwich the slit portion of the carrier 40.

A mechanical base 53 attached to the carrier 40 has a disk drive motor 54 for rotating the disk, a disk information reading pickup 55 movably supported on the mechanical base 53, and a pickup drive motor 56 for driving the pickup 55. and reducer 17+57
, a slider )-58 for pulling out a disk stored in the disk storage section 32, a guide base 59 for guiding and supporting the slider 58, and the like are mounted. Furthermore, two guide plates (
3Qa, 60b, a disk presence/front/back detection sensor 61 for determining the presence or absence of a disk attached to one of these two kite plates and whether it is front or back, and a clamp arm to which a clamper 62 for clamping the disk is attached. 63 and the like are attached to form a carrier assembly 64, which serves as a disc playing means.

The pickup 55 has a pair of guide bars 658 attached to the mechanical base 53. ．． 65b to be movably supported in the radial direction of the disk, and the deceleration mechanism 5
The pick-up drive motor 56 is connected to a wire 68 which is connected to a boo 966 connected to a motor 7 and a pulley 67 fixed to a mechanical base 53. A big-a-raprimic switch 6 for detecting the limit positions on the inner and outer circumferences of the disk of the pickup 55, respectively.
9a, 69b are provided.

The two guide plates 60a and 60b are then held at a predetermined distance by a stopper bin 70 (shown in Figure 15) located at one end of the disc 13 to prevent the disc from slipping backwards. Storage section 32
The side ends are bent outward from each other. This absorbs misalignment between the disc storage section 32 and the carrier assembly 64 and reliably guides the disc to the playing position.
At the same time, it is possible to prevent the disc from tilting at the playing position. Note that in this embodiment, the guide plates 60a, 6o
For b, a thin plate member is used and the other ends are bent outward from each other, but a thick plate member is used and the distance between the ends gradually widens as it approaches the tip. It may be.

In FIG. 3, the disc wrapper 71 that prevents the disc from escaping from the disc storage part 32 is
The stopper arm 72 is provided at the rear of the underbase 22 and is supported and positionally regulated by a stopper arm 72 which is rotatably supported by the underbase 22.

The carrier 40-14 mentioned above is attached to the stopper arm 72.
= A cam pin 74 that can be engaged with the more protruding cam 73 is fixed. The cam bin 74 is connected to the carrier assembly 64
When the disk is at the rightward limit position in FIG. 3(a), that is, the home position, the disk engages with the cam 73 of the carrier 40, as shown in the plan view in FIG. 6(a) and the side view in FIG. The stopper 71 is positioned at a blocking position to prevent movement of the disk.

On the other hand, when the carrier assembly 64 moves from the home position, the carrier 40 is disengaged from the cam 73, as shown in the side view in FIG. is rotated counterclockwise in the figure to retract it from the blocking position to enable movement of the disk.

The disc stopper 71 prevents the disc from being pushed back by the support member 36 of the disc storage unit 32 when the disc in the disc storage unit 32 is pushed backward. ．． 37, the disc is configured to take the above-mentioned blocking position within the limit where it can return to the support member 36.3.
7 may be arranged in such a positional relationship that it contacts the disk when it is on the disk.

Further, the disc stopper 71 is connected to the disc storage section 32.
By engaging with the disk as a stopper member when attached to the disc, it prevents the disc from coming off from the storage part 32, and
When the device is not in use, it acts as a regulating member that prevents the disk from moving from the storage section 32 due to disturbances such as vibrations.

Note that the regulating member may be provided separately from the disc stopper 71, and various configurations are possible for its configuration.

FIG. 8 shows the configuration of a part of the slider, and (a)
is a plan view, and 〉 is a front view. In the figure, the upper surface of the guide base 59 has, for example, three guide grooves 758 to 75.
c is formed, and the slider 58 is connected to the guide bin 76.
By engaging with the guide grooves 75a to 75c via a to 760, it is possible to slide linearly with respect to the guide base 59.

A drum-shaped pull-out roller 78 and a reset roller 79 are attached to the slider 58 via arms 77a and 771).
The disc moving member is a disc moving member that rolls and moves the disc from the performance position to the storage section 32 from the performance position, and is provided at a predetermined distance in the sliding direction of the slider 58.

A drive motor 80 for driving the slider 58 and a worm gear 83 connected to the motor 80 via bells 1 to 81 and a pulley 82 are attached to the guide base 59 via a slider 84. A driving pulley 86 is coaxially attached to the main gear 85 meshed with the worm gear 83, and a wire 87 wound around the pulley 86 is fixed to the slider 58 via pulleys 88a and 88b provided at both ends of the kite base 590, respectively. The slider 58 is moved by the driving force of the motor 80.
to drive. Cam portion 5.8 of the moving slider 58
Slider limiter switches 8.9a and 89b detect the sliding limit of the slider 58 by engaging with the slider limiter switches 8.9a and 89b.
and a disc discrimination position switch 89 that detects the position for determining the presence or absence of a disc and whether it is front or back when moving the disc.
b is provided.

17- Figure 9 shows the configuration of a part of the clamper, (ω is a plan view including a partial cross section, (b) is a front view including a partial surface, and (C) is a side view. In the figure, carrier 40 (
A clamp arm 63 is rotatably attached to a stand 90 with a shaft 91 as a support point.
It is biased by a spring 92 in the clockwise direction in the figure, that is, in the opening direction. The amount of rotation of the clamp arm 63 is regulated by a pin 93 that protrudes from the base 90. Clamp arm 6
3 is attached with a guide portion 95 having a magnetic material 94 at its tip and a guide pin 96 that controls rotation of the clamp arm 63 in the counterclockwise direction, that is, in the closing direction.

When the guide bin 96 is loaded into the disc playing position, it engages with the guide groove 97'a of the engaging member 97 set on the slider 58 (see FIG. 8), and this guide groove 97a , the clamp arm 63 is rotated in the closing direction against the spring 92. The substantially truncated conical clamp 62 is provided with a ring-shaped magnet 98° at the bottom and a magnetic body 99 at the head, and is loosely fitted into the clamp arm 18-muro 3 at a guide portion 95. Note that the clamper 62 and the clamp arm 63 are made of non-magnetic material.

A drive motor 54 for driving the disk 2 is attached to the mechanical base 53 on the side facing the clamper 62, and a turntable 100 as a disk drive means is fixed to the rotating shaft of the motor 54 so that it can rotate freely. There is. The turntable 100 has a ring-shaped magnet 101 and a yoke 102 built therein.

In a part of the clamper having such a configuration, when a disc is loaded to the performance position, the guide groove 97a of the engaging member 97 provided on the slider 58 and the clamp arm 63
(clamped by engagement with the guide pin 96) 7-m 63
is rotated in the closing direction. As the clamp arm 63 rotates, the head of the clamper 62 is inserted into the return table 100 through the center hole of the disk 3. At the time of insertion, the magnetic body 99 of the clamper head forms a magnetic circuit with the magnet 101 and the yoke 102 in the turntable 100 and is pulled by the yoke 102, so that the clamper 6
A part of the taper of the carrier 4° is the support guide 43 (the third
(See Figure (C)) Lift up the disk 2 placed on top,
The disk 2 is pressure-clamped to the mounting portion 100a of the turntable 10°. Furthermore, the clamp arm 63 rotates,
Ii The engaging force between the sacrificial pot body 94 and the magnet 98 causes the guide portion 95 to be separated from the clamper 62.

With this, the clamp force becomes doubly strong due to the force that the magnetic body 99 is attracted to the yoke 102 and the force that the magnet 98 at the bottom of the clamper is attracted to the magnetic body 94.

In the above state, the clamper 62. The disc 2 and turntable 100 are not in contact with other members, and the disc 2
can be rotated stably.

FIG. 10 is a block diagram of the control system of the disc playing device according to the present invention. As explained in FIG. switch group 601
Also provided is a display section 602 that displays the disc number, track number, or operating mode of the machine. CPU603
．． A control unit composed of a ROM 604 loaded with operating programs and a RAM 605 for storing predetermined functions is connected to the aforementioned operation switch group 601 via an input/output interface 606 and an output interface 607.
and is connected to the display section 602.

An operation switch group 601 consisting of a large number of switches is configured in a keyed matrix shape and has an input/output interface 606.
Through the key scanning operation, the operation key input can be performed using fewer connection lines. Any arbitrarily operated switch in the operation switch group 601 is read by key scanning, and its contents are displayed on the display section 602 and sequentially written into the RAM 605.

The device main body 4 includes CPUs 603, , R, which are similar to the operation section 6.
Control 18f composed of AM402 and ROM403
and input] interface 404. Output interface 405. Drive circuit 406. Driven part 407 and input signal It! 408 is provided 21-.

The driven unit 407 includes a carrier drive motor 44. which drives the carrier to a designated disk position. Slider drive motor 80 for loading the disc from the storage position to the performance position. A pickup drive motor 56 that moves the disk information reading pickup in the disk radial direction.
and various display elements.

The input signal source 408 includes a carrier position sensor 50 .
Carrier limit 5W49a provided so that the carrier does not deviate from within a predetermined movement section.

b. Slider limiter 5W89a that detects whether a disc is in the storage position or playing position; b. Disc presence/front/back detection sensor 61. A disk discrimination position 5W89c indicating the operating position of this sensor 61, a pick-a-raprimic switch 69a, b detecting the innermost circumferential position and outermost circumferential position of the pickup, and a disk drive motor 54.
Disc motor speed sensor 1 for detecting that the motor has reached a predetermined rotation (22-). Disk motor quick polishing sensor for detecting stoppage of the motor2. It consists of an information detection section that detects information such as a signal indicating the innermost recording circumference or outermost recording circumference or a recorded track number from a control signal detected from the disk through a predetermined demodulation circuit.

The drive circuit 406 uses 2-bit information as an input source to control driving and stopping of each motor in the forward or reverse direction. For example, (0, 0> indicates stop, (0, 1> indicates forward direction). ,
<1.0) is the opposite direction.

In addition, in order to be able to change the speed as necessary, we use 3-bit information as an input source, which is the above-mentioned control plus 1 bit indicating high speed or low speed. (0,0,1) in the positive direction.

Low speed, (0,1,O,) in the opposite direction, low speed, (1,0°1
) is forward direction, high speed, (1,1,O) is backward direction.

It is also possible to set it to a low speed. Additionally, multiple output bits and D
It is also possible to use a /A converter as a speed control means.

The device main body 4 and the operation section 6 are connected by a bidirectional data transmission system 460, and the CPU/I O1 of both is connected.

603 is a peripheral interface adapter (1) IA
) 409.608 for predetermined encoded parallel data and handshake mode signal transmission as a timing signal for data transmission.

The device body 4 drives the mechanism to a mechanical initial position (stopping the disk drive motor, releasing the slider, carrier home position, etc.) when the power is turned on, and after returning to the initial position, sends a message to the operating unit 6 via the bidirectional data transmission system 460. 1st
request to send the disc number. The operation section 6 is a 5TART key 1 which is pressed after the end of the progeramink in the playing order.
0 (shown in the second diagram), the first disc number is sent to the main body 4 via the bidirectional transmission system 460. The main body 4 drives the carrier 40 so that the supported disk number matches the carrier position.

The stop position barb of the carrier 40 is, for example, a count signal of the output of a position sensor 50 provided on the carrier.
This is done by comparing No. 1 with a reference count value corresponding to the storage position of the designated disc. During this time, the main body 4 and the operating section 6 display a message indicating that ACCESS is in progress (data for displaying ACCESS is sent from the main body 4 to the operating section 6 via the bidirectional data transmission system 460).

When the carrier 40 arrives at the designated position and stops, the slider drive motor 80 is driven and the corresponding disc is loaded to the playing position.゛At this time, when the disc discrimination position switch 89C provided in the middle of the loading mechanism is activated, a signal from the disc presence/front/back detection sensor 61 is input, and only when the information side is loaded in the correct direction. Loading continues as it is, and if it is determined that there is no disc to be loaded in the opposite direction, the loading mechanism reverses and stops loading. At the same time, an error message is displayed on the display section.

The disc loaded in the playing position is the clamper 6.
After the disk drive motor 54 is properly clamped to the main body 4, when it is detected that the disk drive motor 54 starts and reaches a predetermined rotation speed, the main body 4
requests the operating section 6 for the specified song number. The specified song number is compared with the song number in the disc information, and the pickup 55 is driven at high speed to the beginning of the specified song number. If the designated song number is greater than the number of songs recorded on the disc, the pickup limiter switch 69b on the outer periphery is activated, and it is determined that the specified song cannot be found. At this time, the pickup 55 stops and returns to the inner circumference of the disk at high speed. Also in this case, an error is displayed.

When the pickup 55 arrives at the predetermined song number position,
The pickup 55 enters the play state and plays the corresponding song. At the same time, the play is displayed on the display section. When the performance of a predetermined song is completed (designated song number +1 is detected), the display indicating that the music is being played is turned off, and the main body 4 requests the number of the next song and moves on to the next 8iI performance.

If the next disc to be played is different from the disc currently being played, the above process is reversed, the disc is moved to a new disc position, and the disc is loaded and played in the same manner as described above. If the discs are the same, the system requests transmission of the program number to be played and starts playing.

FIG. 11 shows a circuit block diagram of the control section of the door 5, in which a door switch 1 provided on the front of the device body 4 is shown.
are resistance Rm, RII2, capacitor C1□,,
A pulse signal is generated by a differentiating circuit composed of C, , □, and AND games 1 to 11 are connected to the carrier remic switch 49a which detects the home position of the carrier 40.
Enter 0. The output of the AND gate 110 becomes the clock input of the T-type flip-flop 111. The two output horns Q and ○ of the D-type flip-flop 111 are respectively input to the door open limiter switch 31a and the door open limiter switch 31b, and the AND gates 1-113 and 114, and the outputs of the AND gates 113 and 114. rotates the door drive motor 26 via the drive circuit 112 as a forward rotation/reverse rotation signal. A power reset signal is applied to the reset terminal of the D-type flip-flop 111.

In such a control unit, when the power is turned on, the door switch 1 is
The reset signal works regardless of the operation and carrier position, and the T-type flip-flop 111 has Q=L and Gl=1.
-1, so the close limiter switch 31b is set to L.
The door 5 is closed by driving in reverse until it reaches the level (closed state). On the other hand, the operation signal of via switch 1 is carrier 4o
The switch 49a that detects the home position of the door 1 is activated only when it is at the level (in the home position), reverses the T-type flip-flop 111, and rotates forward until the open limiter switch 31a reaches the L level (closed state). is opened, and the door 1 is closed by rotating in the reverse direction until the open limiter switch 31b reaches the L level (closed state).

In such a door control product, the door 5 is closed only when the carrier 40 equipped with the performance system is at the home position.
This structure allows the disc to be opened, thereby preventing problems such as accidentally storing a new disc in the storage position of the disc being played.

Next, the operation of the disk playing device configured as described above will be described.
1.1 will be explained.

First, regarding storage of disks, when the door switch 1 provided on the front of the device body 4 is pressed, the door 5 automatically opens and a disk storage section 32 provided immediately behind the door 5 opens.
appears, so it is only necessary to insert the disk 2 into any slot formed by the partition plate 35. At this time, since the disc stopper 71 is in a predetermined blocking position due to engagement with the cam 73 of the carrier 40 in the home position (see Fig. 6), the stored disc is securely placed in the storage section 32 without deviating backward. It will be installed. When the disc is stored, the title name of the disc,
Furthermore, by recording the track list etc. in the MEMO section 13b, the title and track list etc. of the storage disc can be easily searched. After storing the disc, when the door switch 1 is pressed again, the door 5 is automatically closed and the door close limiter switch 31b is closed. This door close limiter switch 3
carrier assembly 64.1b in response to the output of carrier assembly 64.1b. starts moving to sequentially scan each storage slot of the disk storage section 32. (A scanning flowchart is shown in FIG. 19). At this time, the disc stopper 71 that prevents the stored disc from rolling backwards is connected to the disc stopper 73 that protrudes from the carrier 40 as the carrier assembly 64 moves.
It gradually disengages from the cam bin 74 fixed to the stopper arm 72 that supports it, and due to its own weight it rotates counterclockwise from the state shown in Figure 6) to a position where there is no problem in pulling out the stored disc. Evacuate (see Figure 7).

Each storage slot position (disk storage position) of the disk storage section 32 corresponds to each slit of the slit plate 51 that constitutes the carrier position detection sensor 50, and the carrier assembly 64 is configured based on the output of the carrier position detection sensor 50. stops at each storage slot position in sequence.

After the main 11 rear assembly 64 has stopped, the slider 58 for loading (transporting) the storage disk begins to move. When the carrier 40 stops at the storage slot position, the pull-out roller 78 and the reset roller 79 attached to the slider 58 are in the state shown in FIG. 1430-(a), and the slider drive motor 80 is started in this state. Then, the slider 58 is moved backward (in the direction of the arrow in FIG. 14). As a result, the pull-out roller 78 comes into contact with the outer periphery of the disk, and the disk is loaded as the slider 58 moves.

The slider 58 turns on the disc discrimination position switch 890 with its cam portion 58a during loading of the disc. In response to the ON of this switch 89C, FIG.
Then, as shown in FIG. 6B, a disk presence/absence/front/back discrimination sensor 61 provided on the guide plate 60a is activated to determine the presence or absence of a disk. If there is no disk, the number to the slotter 1 is determined based on the output of the carrier position detection sensor 50 in the RAM 40'2 (as shown in the 10th figure).
It is stored in memory 1 inside. After the determination of the presence or absence of a disc is completed, the slider 58 changes its moving direction to return the disc to the storage section 32. When the return of the disk is completed, the carrier assembly 64 moves to the adjacent storage slot position, determines the presence or absence of a re-disk by the same operation as above), and then sequentially scans the disk by the same operation until the last slot. . When the scanning is completed, the carrier assembly 64 returns to the Baume position and becomes ready for music selection. Note that it is also possible to adopt a configuration in which such scanning is performed in response to power-on.

There are two ways to select songs: one is to sequentially specify the disc (slot) number and the song number using the number keys 7 of the operation unit 6, and the other is to open and close a plurality of index plates 13 and select the desired disc using the index key 15. (Use number key 7 to specify the song)
There is.

If you want to specify and register, for example, the 5th track of the 3rd disc and the 10th track of the 23rd disc among the storage discs using the former song selection method, press the number key 7 and other keys according to the operating procedure shown in Figure 12(a). This is done by operating the keys. On the other hand, when using the latter song selection method to specify and register the 3rd song on the 8th disc and the 5th song on the 33rd disc, first see Figure 12 (b).
As shown in (C), open the index plate 13 of the page on which the corresponding disc number is written, operate the index key 15 (indicated by diagonal lines in the figure) corresponding to the disc number, and then use the number key 7 to enter the track number. This is carried out by specifying the command and then operating each key according to the operating procedure shown in FIG. 12 (small). Note that by opening and closing the index plate 13, an index switch linked thereto is operated, and the contents of the keys are automatically changed. The specified disk (slot) number and song number are registered in memory 2 in RAM 402.

After completing the specified registration of the disc number and track number using one of the above song selection methods, press the 5TART key 10.
CCESS IND20 lights up and each mechanism starts operating. The operation of each mechanism will be explained below based on the flowchart shown in FIG.

5 In response to the start command from the TART key 10, the first designated and registered slot (disk) number is read from the memory 2, and this slot number is stored in the memory 1.
It is determined whether the disk is registered in the slot (33-), that is, whether the disk is installed in the slot (A). If it is not installed, the next designated slot number is read. When it is determined that the carrier assembly 64 is installed, the carrier assembly 64 starts moving to the designated slot position. At this time, the disc stopper 71 rotates counterclockwise from the state of 6th position in the same way as when scanning the disc storage section 32, until it reaches a position where there is no problem in pulling out the stored disc to the playing position. evacuate. As the carrier assembly 64 moves
DISK IND 16 counts up and stops at the number corresponding to slot 1 ~ position, and at the same time ACCESS
IND20 goes out.

After the carrier assembly 64 stops at the designated slot position, the designated track number of the designated disc is read from the memory 2, and the designated track number is checked to determine whether or not 0 is recorded in the memory 1, that is, the designated track number is the number of recorded tracks on the designated disc. It is determined whether or not the song number is outside (registration of the song number in the memory 1 will be described later). If it is registered, the next designated slot number is read out in line 34-. If it is determined that the disc is not registered, the slider 58 starts moving to load the disc stored in the slot to the performance position. As the slider 58 moves, 5TANDBY IND19 lights up. This 5TANDBY[ND19 remains lit until the disc is mounted on the turntable 100, the disc drive motor 54 rotates, and the performance begins.

To explain the operation of a part of the slider with reference to FIG. 171, when the carrier 40 stops at the designated disk position, the pull-out roller 78 attached to the slider 58
and the reset roller 79 are in the state shown in FIG. In this state, the slider drive motor 80 is started to move the slider 58 backward (in the direction of the arrow in the figure). As a result, as the slider 58 moves, the pull-out roller 78 moves the disc that is in contact with the outer periphery of the disc to the engagement position with the clamper 62, that is, the playing position (the carrier 4
Support guide 43) having an inclined surface 43a provided at 0
(FIG. 14(b)). The disk conveyed by the slider 58 is moved to the support guide 4 of the carrier 40.
Sera 1~ is done in 3. After that, the slider 58 remains at the 14th position.
As shown in the figure (C1), the disk continues to move further from the set position, thereby creating an extra stroke S between it and the outer circumference of the disk. During this extra stroke S, a disk clamping operation, which will be described later, is performed.

The slider 58 turns on the disc discrimination position switch 890 with its cam portion 58a during loading of the disc. In response to the ON of this switch 89c, FIG.
As shown at a3+b+, the disk presence/absence/front/back discrimination sensor 61 provided in the guide plays 1 to 60a is activated, and the disk presence/absence determination and front/back discrimination are performed again. If there is no disc or if the disc is on the back side, its slide number is written in the memory 1 and the slider 58 changes its direction of movement to return the disc to the storage section 32. At the same time, ERRORIND21
Light up. If normal, the loading operation continues and the disc is set in the playing position.

The disc 2' being brought to the performance position is supported by the support guide 43 so that its center is a distance 11tj+ lower than the center of the disc 2 in the storage section 32, as shown in FIG. After the disc is set in the playing position,
The kite groove 97a of the engagement member 97 provided in the slider 58 due to the above-mentioned surplus stroke S of the slider 58
and a guide pin 96 fixed to the clamp arm 68 engage with each other to rotate the clamp arm 68 in the opening direction. As the clamp arm 68 rotates, the head of the clamper 62 is inserted into the turntable 100 through the center hole of the D and S. During insertion, the magnetic body 99 of the clamper head is pulled by the yoke 102 in the turntable 100, so that the tapered portion 62.8 of the clamper 62 is attached to the support guide 4.
3, and press-clamp the disc to the mounting surface 100a of the turntable 100. At this time, the center of the disk 2'' is at a distance of 1ttlft2 (t2<t+
) (see Figure 16).

37- When the mounting of the disc onto the turntable 100 is completed, the slider remic switch 891] is turned on to detect completion of clamping. (The switch 89a detects the home position of the slider 58.) In response to the ON of the switch 89b, the disk drive motor 54 is started. When the disk drive motor 54 reaches a constant speed, the pickup 55 starts moving at high speed to the beginning of the designated song number. At this point, ACCESS IND20 lights up, and the information reading device including the demodulation circuit etc. (not shown)
The system sequentially operates a predetermined servo system such as a tracking device, and performs a sequential operation in order to obtain the correct information content. At this time, if the disc is not properly installed or the surface of the disc is damaged, the information cannot be read correctly. Store the disk and return it to its original slot. If the information can be read, the pickup 55 accesses the specified song, and when the pickup 55 stops at the specified song position 38-, PROGRAMIND 7, which was counting up at the same time the pickup 55 starts moving, stops counting and displays the song number. indicate.

The pickup 55 moves from the stop position to constant speed running and starts playing. During the performance, 5TAND BYIND19.
ACCESS' IND20 goes out and PEAY
IND18 lights up.

In the playing state (clamped state B), as shown in FIG.
overlaps with the outer periphery of disk 2b located at position 2,
Furthermore, the positional relationship is such that it is located within the outer edge of the partition plate 35. This has the effect that the depth of the main body 4 of the apparatus can be reduced, and that the amount of the disk to be pulled out during loading can be reduced. Further, when the outer periphery of the disc 2a being played is located between the parallel parts 39 of the partition plate 35,
Another effect is that it is possible to prevent the disc from being erroneously stored in the storage section 32 after the end of the performance.

Note that the shape of the performance haiga side of the partition plate 35 is not limited to the shape having the parallel portion 39 shown in FIG. 4, but only a tapered portion 35a is provided as shown in FIG. The outer periphery of the disc being played may be positioned between the partition plates, or the outer periphery of the disc being played may be positioned between the ends of the plate-shaped partition plate, as shown in FIG. 18(a). good.

When the performance of the specified music and all the programmed music are completed, the PLAY INDI 8 goes out and the pickup 55 returns to its home position. Thereafter, the clamp on the disc is released and the disc is returned to the disc storage section 32.

Then, the carrier assembly 64 returns to the home position and the series of operations ends. When the door 5 is opened to replace the storage disk, the door close limiter switch 31b is turned off, and in response, the contents of the memory 1 are cleared.

Next, the operation in special cases will be explained. First, while loading a disc, a separate sensor 61 detects whether the disc is present or not, and whether it is front or back.
If it is determined that the disk is on the back side, the slot number is stored in the memory 1, the direction of movement of the slider 58 is reversed, the disk is returned to the disk storage section 32, and the carrier assembly 64 moves to the next specified disk. (slot) position, or return to the Baume position if there is no designated song.

Also, when the pickup 55 starts moving and searches for a designated song, if the designated song number is longer than the number of songs recorded on the disc, that is, if there is no designated song and the song number cannot be detected from the disc. By operating the pickup limiter switch 69b on the outer periphery, the pickup 55 returns to its home position, and its disk (slot) number and designated song number are stored in the memory 1. Then, release the disc clamp and place the disc in storage compartment 3.
After returning it to 2, the same operation as described above is performed.

When a command is given to move to the next registered disc or song by operating the NEXT key 11 during a performance, if the next specified song is recorded on the disc being played, the song A is selected. Pick up to the head of 5
5 is moved, and when switching to the next disc, the same operation as in the case where there is no designated song is performed. Also, A
A similar operation is performed when the GAIN key 12 is used to command another pitcher to be played according to the contents registered in the memory.

Although the disk performance device with this configuration can accommodate various disk sizes, it is especially suitable for small-diameter digital audio disks called compact disks, which makes it far superior to conventional gicoke boxes. Miniaturization becomes possible. Further, the present invention is not limited to the above-mentioned embodiments, and can be modified in various ways. For example, a configuration may be adopted in which a disc playing means including a pickup 55 is placed above the disc storage section 32.

Furthermore, although the disc is moved to bring the positional relationship between the disc and the disc playing means into a playable position, it is also possible to move the disc playing means to the disc storage section. .

42- As detailed above, according to the present invention, when playing a specified disc, the specified number of information groups (specified song number) is The disc number and the number of information groups (specified track number) are stored in memory, and access is subsequently accessed for the same disc with the same number of information groups or a larger number of information groups. It is configured to support the invalidation of operations, and once it requires wasted time to search for the specified number of information groups that are not stored, but from now on there is no need to search, so smooth program play is possible. becomes. There is also a so-called learning effect in which the number of invalid designation information groups can be accumulated in the memory one after another by repeating the reproduction operation.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall structure of a disc playing device according to the present invention, and FIG. 2 is a plan view of an operating section. (mountain) is a front view including some parts, (C) is a side sectional view,
Figure (a) is a plan view of the main body of the device, <b> is a front view, (C)
is a side view, Figure 4 is a schematic perspective view of the disk storage section, and Figure 5 is a side view.
Figure (a) is a view seen from the six directions of arrows in Figure 4.
The figure in the performance state seen from the direction of arrow B in the figure, FIGS. 6 and 7 are explanatory diagrams of the operations of the distractor 1 to the collar,
(ω is a plan view, (b) is a side view, Fig. 8 (ω is a plan view of a part of the slider, the mountain) is a front view, Fig. 9 (al is a plan view including a partial cross section of a part of the clamper, (b) is a front view including some parts, (C) is a side view, Fig. 10 is a block diagram of the control system, Fig. 11 is a circuit block diagram of the door control section, and Fig. 12 is a block diagram of the control system.
Figures (a) - (The crests are diagrams showing the operation procedure when selecting music, Figure 13 is a flowchart diagram for explaining the operation of each mechanism, Figure 14 (al~ (C1 is a diagram explaining the operation of a part of the slider, Fig. 15 is a diagram showing the positional relationship between each member when determining the presence or absence of a disc and the front and back sides, (ω is a plan view, city) is a side view, and Fig. 16 is a diagram showing the relationship between the discs in the stored haiga and performance positions. Fig. 17 is a diagram showing the positional relationship of the partition plate, guide plate, and disc in the playing state, and Fig. 18 (ω and +b
+ indicates another shape of the end of the partition plate on the playing position side 1
The plan view shown in FIG. 19 is a flowchart showing the scanning operation of the disk storage section. Explanation of symbols of main parts 2...Disc 4...Device body 5
...Door 6...Operation section 22.
...Anterpace 26...Door drive motor 32...Disk storage section 34...Support base 35...Partition plate 36.37...・・・・・・
Support member 40...Carrier 43...Support guide 44...Carrier drive motor 50...Carrier position detection sensor 54...
... Disk drive motor 55 ... Pickup 56 ... Pickup drive motor 58 ...
...Sliders 60a, 60b...Guide plate 61...
...Disc presence/absence/front/back detection lens 62...
・Clamper 63...Clamp arm 64・
...Carrier assembly 45-71...Disc stopper 78...Pull-out roller 79...Reset roller 80...Slider drive motor 96...・・・
・Guide bin 97...Engaging member 98.101...Makunetsu i~100...
...Turntable applicant Pioneer Co., Ltd. agent Patent attorney Motohiko Fujimura 46- JP 58-164058 (19) Earth! 70 32 5a 376-

Claims (1)

[Claims] A disc storage unit capable of arranging and storing a plurality of discs at a predetermined pitch, a disc playing means movable in the disk arrangement direction of the disc storage unit, and a positional relationship between the disc and the disc playing unit that allows play. a detection means for detecting that the specified number of information groups becomes larger than the number of information groups recorded on the specified disk when the specified disk is played back;
storage means for storing a specified disc number and the number of information groups in response to the output of the detection means, and the information group is the same as or larger than the number of information groups stored for the disc stored in the storage means. 1. A disk performance device characterized in that an instruction is given to invalidate an access operation in response to a number specification.