JPS62192064A - Multi-disk player - Google Patents

Abstract

PURPOSE:To attain rapidly the skipping action by controlling a chucking mechanism so as to operate in a different mode in accordance with the condition of a loading at the time of inputting a skipping signal. CONSTITUTION:When a skipping signal to shift a rotating disk 4 by the share of one disk is inputted, a tray 4 is rotated by the share of one disk, in a state of a sliding table 3 is pulled out from a chassis part 1. When the table 3 is inserted into the chassis part 1 and a skipping signal is inputted, at the time of reproduction, an optical block 8 is shifted in the lower direction once and the chucking of the disk is released. Thereafter, the tray 4 is rotated by the share of one disk, the disk at a next disk storing part 4A is shifted to a reproducing position, the optical block 8 is rise to attain chucking. Thus, the skipping can be rapidly attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multi-disc player that can reproduce one or more rotating recording media continuously or in program order.

[Summary of the invention]

The multi-disc player of the present invention includes a rotating disc tray that can accommodate a plurality of discs mounted on a slide-type drawer member, and one or more discs accommodated in the rotating disc tray. l'l the disc
In a device configured to be able to be played automatically or according to a program, the rotation control and the chucking rtJJ control of the rotating disk tray may differ depending on the position of the sliding pull-out member and the playback state of the multi-disc player. This is what I did. Therefore, the drive mechanism becomes compact, and the reproduction disc can be replaced quickly.

[Conventional technology]

2. Description of the Related Art Some playback devices, such as record players and compact discs, are configured such that a plurality of disks are set in advance in the player device, and any number of songs can be played by an external operation.

[Problem that the invention seeks to solve]

However, since the player (music box) having such a changer unit was originally designed to accommodate a large number of dozens of soft discs, the device is large and expensive, making it difficult for general users to use. In the past, there was a problem that it was difficult to use, for example, even for devices that were intended for compact discs (CDs) as music software, packages to accommodate several CDs stacked on top of each other were required. There is also a problem in that the changer mechanism when playing a CD becomes complicated.

This invention was made in view of this problem, and allows you to play multiple discs in succession by a simple operation similar to that seen in a player that plays a single disc.
Or make it playable by a program, and
This mechanism allows for easy replacement of playback discs.

[Means for solving problems]

Similar to a conventional disk or record drive mechanism, there is a slide table on which a disk can be placed and pulled into the housing, and a slide table that is placed on this slide table to arrange multiple disks on a flat surface. a rotating disk tray that can be stored; a driving device that pulls in the slide table and chuffs it at a predetermined position; and a rotating device that rotates the rotating disk tray in accordance with an operation mode and moves it to a chucking position. A pickup mechanism capable of reproducing the recorded signal of the disc is installed in the housing, and when a skip signal for converting the reproduced disc is input, the chucking mechanism using the disc rotation device and the optical block is installed in the housing. Control is performed so that different operations occur depending on the player's loading condition fE;.

[Effect]

For example, when the slide table is pulled out and a skip signal is input using the skip button to shift the rotating disc tray by one disc, the rotating disc tray will be rotated by one disc, but the slide table will not be pulled into the housing. If a skip belief is input when the +Ir output is 0, move the optical block downward to release the disc chucking, and then rotate the rotating disc tray by one disc. The disc in the next disc storage section is moved to the playback position, and the optical block is moved up to perform chucking.

〔Example〕

FIG. 1 is an explanatory diagram showing an outline of the multi-disc player of the present invention, where l is a part of the chassis of the multi-disc player, 2 is a front panel, and 3 is a slide table that goes in and out from the front opening of the front panel 2. .

As shown by the solid line, this slide table 3 has a circular rotary disk tray 4 mounted on the concave surface of the slide table 3, and the top surface of the tray 4 is arranged so that, for example, five compact disks can be placed thereon. Disk storage portions 4A, 4A, . . . , each having a concave surface are formed. Adjacent portions of the disc storage units 4A, 4A, . . . are connected to a circuit 4B so that the placed discs can be easily taken out.

4B..., the chucking table of the spindle motor protrudes from the central part, and the opening ``1'' faces the pickup device placed in the position as described later. Part 4C, 4C,.

...is aQ digitized. In addition, 4D, 4D・2
10. .

is a recess that is useful when rotating the rotary disk tray 4 manually.

Reference numeral 5 denotes a rotary motor for rotating the rotary disk tray 4, which is attached to the lower surface of the slide table 3. This part includes a rotation detector of the rotary disk tray 4, a positioning member, and a disk positioning member, as will be described later. Detectors and the like are also provided. A chucking head 6 is fixed to the slide table 3, and the lower side of the chucking head 6 is designated as the playback position.

7 is a separate drawing of a disc playback block placed on the bottom surface of the chassis part 1. Inside this disc playback block 7, there is a disc playback block 7 that is raised upward by a loading mechanism 9 provided on the chassis. A driven optical block 8 is installed inside.

Reference numeral 10 indicates an electronic circuit board fixed to the upper surface of the chassis part 1 via a support plate.

2nd (A) and 3rd are plan views for explaining the retracting device of the slide table 3, the rotation mechanism of the rotary disk tray 4, and the drive mechanism of the disk playback block 7, which are one embodiment of the unreleased ts1. (partially cutaway view) and an exploded perspective view, where parts are designated by the same symbol S-) as in FIG. 1.

In these figures, the slide table 3 particularly shown in FIG. A rack 13 that meshes with a loading gear 20 is provided. (
In the stored state shown in FIG. It meshes with a gear 4E carved around it.

14 is a rotation stopper operated by a plunger (not shown), 15A and 15B are microswitches for detecting the rotational position of the rotating disk tray 4, and 16 is a photoelectric detector for detecting the presence or absence of a disk. 3, and detects and sets the position of the rotating disk tray 4 as described later.

The loading gear 20 is rotatably supported on the chassis part 1, as shown in particular in FIG. 2, and includes reduction gears 21, 22, a belt 23. Pulley 24. The rotation is controlled by the loading motor 25 as described later.

Then, as described above, the rack 13 on the lower surface of the slide table 3 is driven in the direction of the arrow A by the gear 20A carved in the outer peripheral area of the loading gear 20 to move the slide table 3. The rack 13 is locked by rotating the stopper plate 26 at the half-top portion 20B on the outer periphery.

Further, a spiral cam groove 20G is formed on the lower surface of the loading gear 20, and this cam groove 20C has the following features:
In particular, as clearly shown in FIG. 3, the dowel 32 formed on the sub-chassis 31 for raising the optical block 8 upward is jilted.

1-shaped guide holes 33, 33, 33 are provided on both sides of this sub-chassis 31. A certain guide bin 35.35, (3
5) is loosely fitted.

Therefore, when the loading gear 2o described above rotates clockwise, first the rack 13 of the slide table 3
is pulled into position in the direction of arrow A as shown in FIG. The rack plate 13 is fixed by the end 26A of the second stopper plate.

When the loading gear 20 continues to rotate further, the dowel 32 fitted in the cam groove 20C moves toward the center of the loading gear 20, so that the sub-chassis 3
1 moves in the direction of arrow B.

At this time, the box 34 located below the sub-chassis 31
The guide bin 35.35 has a ]-shaped guide hole 33.3.
3, the box 34 is lifted upward along the shape of the guide holes 33, 33, and the entire box 34 rises inside the sub-chassis 31.

And ii! in box 34! The 2ffi optical block 8 protrudes from the upper surface opening 36 of the sub-chassis 31.

Note that the box 34 is provided with support portions 37.37 passing through it in the vertical direction at several locations, and is supported by slide shafts 38.38 implanted in the chassis portion 1 of the main body.

Therefore, the optical block 8 can only be moved in the vertical direction at a specific position on the chassis part 1.

The optical block 8 is mounted on a feed shaft 41.
41 is fixed, and a two-axis mechanism 42 is slidably supported on this feed shaft 41.41, and the feed motor 4
3 is also installed.

A plurality of support members 44 made of an elastic material.
44... is fixed to the bottom surface of the box 34 to add earthquake resistance.

Note that a spindle motor 45 and a turntable 46 equipped with a disk, which will be described later, are also included in the mechanical deck 40.
Although these are attached to the box 34, they may be fixed directly to the box 34.

4 and 5 show a cross-sectional view and a part of the back view of the rotating disk tray 4, and the cross-sectional view in FIG. 4 is centered on the state cut along the X1 line and the These are written on the right and left sides of the axis.

As shown in this figure, the disk storage section 4 described above
A is a circular concave surface, and a circuit 4 connects these.
B is also formed with a concave surface.

A southern army 4E is formed on the outer periphery of the rotating disk tray 4,
It meshes with the southern arm 5A of the rotary motor 5 provided on the slide table 3. Then, the central shaft 4F is rotatably connected to the rotating shaft 3A installed in the slide table 3.
are combined.

On the back side of the rotating disk tray 4, there are 3
Book circumferential rib 4G+, 4G2. 4G3 is provided, and the outermost circumferential rib 4G+ is provided with a positioning center portion 4.
H, 1 place, middle and inner circumferential rib 4G+,
4G2 is provided with recessed portions 4H2 and 4H3 for rotational position detection with a slight angular difference.

The recessed notch 4H2 is provided to specify a specific position of the rotating disc tray 4, and the recessed notch 4H3 is provided to specify the position of the disc storage section 4A.

Therefore, the central portion 4H1 is required to have at least the stopping position of the rotary disk tray 4, that is, the number of stored disks, and as will be described later, if the number of stored disks is odd, the number of the recessed portions 4H is at least twice that number. Preferably, they are arranged at equal angles.

Although FIG. 4 shows an embodiment in which the slide table 3 is provided with microswitches 15A and 15B for detecting the recessed portions 4H2 and 4H3, other optical or magnetic detection devices may be used. can do.

The above-described chucking head 6 is fixed to one end of the slide table 3, and a disc pressing member consisting of a support plate 6A, a magnet 6B, and a pressing plate 6C is loosely fitted into the chucking head 6. Therefore, as shown in the figure, when the spindle motor 45 and the chucking table 46 rise from below during loading, the disk (not shown) placed in the disk storage section 4A rises slightly upward, and the disk holding member It is pressed onto the turntable 46 by the attraction force of the magnet 6B, and the rotational force of the spindle motor 45 can be transmitted.

FIG. 6 shows an example of the front panel surface of the multi-disc player of the present invention, where 51 is a selection switch for specifying whether to play one disc or all stored discs; Receiving window for remote control, 53
54 is a program key that can display or select the number of the stored disc or the disc being played; 54 is the playing time of the disc as seen in the past;
55 is a repeat button, 56 is a time display button, 57 is a disk skip button, 58 is a program memory button, and 59 is a clear button. Further, 60A and 60B indicate AMS operation buttons for locating the beginning of the disc being played (AMS).

Reference numerals 61 to 65 indicate operation buttons that are used in ordinary disc players, such as a start button, a bow button, a fast forward button, a stop button, and a slide table opening/closing operation button.

The multi-disc player of the present invention is constructed as described above, so when the slide table opening/closing button (65) is pressed, the slide table 3 is pulled out to the front of the housing as shown in FIG. and a disk can be installed.

In this case, if the disc storage area 4A at the front end of the slide table 3 is not empty, manually rotate the rotating disc tray 4 to bring the empty disc storage area 4A to the front and select the disc you want to play. The disc can be placed in the disc storage section 4A or replaced with a new disc.

When the selection button 51 is set to, for example, the single-disc performance mode, in that state, the slide table 3 is returned to the housing by the open/close operation button 65 and played again! It can be placed in the L state.

That is, when the closing operation is performed, the aforementioned loading gear 20 rotates clockwise and engages with the rack 13 of the slide table 3, and at the same time as it is drawn into the housing, the stopper plate 26 locks the slide table 3 within the housing. Then, when the loading gear 20 further rotates by half a rotation, the sub-chassis 31 moves laterally, and as described above, the optical block 8 mounted on the box 34,
Then, the spindle motor 45 rises upward.

While the slide table is in operation, the rotating disc tray 4 is rotated by the rotating motor 5, and the rotating disc tray 4 is rotated once.
The disc that was at the forefront of the disc is driven to the playback position.

Therefore, the turntable 46 of the spindle motor 45 that has risen up enters the center opening of the disk and presses against the chucking head 6 provided at one end of the slide table 3, thereby coupling the chucking table and the disk. , rotational force is applied to the disc at the playback position.

Then, 1. Various servo rotations are operated according to commands from the control section of the child circuit, and a performance state is entered.

The rotation of the rotating disk tray 4 is controlled by the recesses 4H2 and 4H formed in the circumferential ribs 4G2 and 4G3 formed on the back surface of the rotating disk tray 4 described above.
3 is detected by microswitches 15A and 15B.

That is, first, the rotating disk tray 4 is detected by detecting only one concave notch 4H2 formed around the circle.
Store the position information in a memory or the like, then detect the recessed part 4H3 from this point using another microswitch (15B), count the number, and specify the position of the disc storage part based on the counted value. I can do it.

Therefore, when the count value reaches a predetermined number while rotating the rotary motor 5, the rotary motor 5 is stopped and the rotation stopper 1
4, for example, in this embodiment, the recessed part 4 is activated.
By counting five H3s, the rotary disc tray 4 can be rotated half a rotation, and the disc in the front row can be moved to the playback position.

Next, when the selection button 51 is set to the continuous play mode, when the playback of the disc in the raw position in 11) above is completed, the rotation is made by one disc in the direction shown by the arrow Z in FIG. is in the playing state and when five discs are stored, the five discs can be played continuously.

In this case, when the rotating disk tray 4 rotates once due to the rotation control performed during loading, the number of disks in the disk storage section is detected by the photodetector 16 etc. provided on the bottom surface of the slide table, and the program key 53 is displayed. Since the information is displayed on the disc storage area and also stored in the internal CPU, it is possible to check which disc storage area is available and to prevent this disc storage area from stopping at the playback position due to the skip operation. .

Furthermore, in the continuous performance mode, the playback order of the discs can be specified using the program button 58, and by repeating the playback, it is possible to enjoy an even longer performance.

The disc skip button 57 can rotate the rotary disc tray by one disc. For example, when the slide table 3 is open, the micro switch 15A (15B) can be used to rotate the recessed part 4H2 (
In this embodiment, the rotary disk tray 4 is rotated 175 times while detecting 4H3).

However, if the disc skip button 57 is operated with the slide table retracted into position, during playback, that is, when the disc is being chaffed by the optical block 8, the loading gear will be turned off. 20 in the opposite direction, the optical block 8 is moved downward to release the chucking state, the rotating disk tray is skipped by one disk as described above, and then the loading gear is turned again. 20 and operates to chuff the disc that has newly come to the playback position. Then, the disc number (storage number) that has reached the playback position δ is displayed on the front panel.

Note that when the disk skip button is operated, if the slide table 3 is not in the standby state even if it is pulled in, the above-mentioned chucking release and setting operations are omitted and the rotating disk tray 4 is rotated immediately. control so that

〔Effect of the invention〕

As explained above, the multi-disc player of the present invention has a rotating disc tray mounted on the slide table so that a plurality of discs can be accommodated in the housing, so it has better playback than conventional players. This has the effect of greatly improving performance, and also has the advantage that replacing and inserting disks is extremely easy.

Furthermore, the skip operation 1I4F has the advantage that the skip operation can be performed quickly because the operation of the rotating disc tray is changed together with the chucking operation depending on the state of the multi-disc player.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an overview of the multi-disc player of the present invention, Fig. 2 is a plan view showing a mechanism for setting the slide table to a loading state, and Fig. 3 explains the drive mechanism of the optical block. FIG. 4 is a sectional view of the rotary disk tray part, FIG. 5 is an explanatory diagram of the detection unit that performs position detection and setting of the rotary disk tray position, and FIG. 6 is the front panel of the present invention. It is a front view showing an example. In the figure, l is a part of the chassis, 2 is a front panel, 3 is a slide table, 4 is a rotating disk tray, 4A is a disk storage area, 5 is a rotating motor, 6 is a chucking head, 7 is a disk playback block, and 8 is a The optical block, 9 is a loading drive mechanism, and IO is an electronic circuit board. Rotating Tensugechial/) Figure 5 on the back side

Claims (1)

[Claims] A slide table configured to slide horizontally into and out of a casing, and a plurality of disk storage units mounted on the slide table and capable of storing a plurality of disks side by side on a flat surface. a rotating disk tray provided with a rotating disk tray; a drive device capable of rotating the rotating disk tray and stopping the rotating disk tray at a predetermined position; a loading device that sets the slide table and the disc playback block to a loading position, and when a signal for skipping the rotating disc tray is input, the slide table moves to the housing. In a first state in which the sliding table is pulled out from the housing, only the driving device operates, and in a second state in which the slide table is pulled into the housing by the loading device, the loading device is in a reproducing state. The multi-disc player is characterized in that the drive device operates after starting or canceling the chucking operation of the disc playback block depending on whether the disc playback block is chucking or not.