JPS62192065A - Multi-disk player - Google Patents

Abstract

PURPOSE:To lower the height of a player as a whole and to miniaturize the player by providing a chucking head which holds a turn table on a disk at the time of the disk coming to the reproducing position, at a sliding table. CONSTITUTION:At one edge of a sliding table 3, a chucking head 6 is fixed, and to the head 6, a disk holding member composed of a supporting plate 6A, a magnet 6B and a holding plate 6C is idly-fitted. Consequently, when a spindle motor 45 and a chucking table 46 are forced up from the bottom at the time of loading, the disk placed at a disk storing part 4A is embossed in the upper direction, pressured onto a turn table 46 by the absorbing force of the magnet 6B and the rotating force of a motor 45 can be transmitted. Thus, since the chucking member can be arranged to the low position, the height of a player as a whole can be lowered. Consequently, the player can be miniaturized.

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 is provided with a rotating disc tray capable of mounting and accommodating a plurality of discs on a slide-type drawer member, and a rotating disc tray that is moved to a playback position by the rotating disc tray at one end of the slide table. The disc is equipped with a chucking head for holding the disc on the turntable. One or more discs housed in this rotating disc tray can be played back automatically or according to a program. Therefore, a desired plurality of discs can be stored in the player, and the playback capacity is greatly improved. At the same time, the device can be made smaller by adopting the chart on the slide table, the king device, and the rotating disc tray. can.

[Conventional technology]

Some +1J playback devices, such as record players and compact discs, have multiple disks set in the player device in advance and can be used to play any desired track by external operation. .

[Problem that the invention seeks to solve]

However, since players (music boxes) with such a changer function were originally designed to accommodate a large number of dozens of soft disks, the devices are large and expensive, making them difficult for general users to use. At the same time, there is the problem that, for example, devices that use compact discs (CDs) as music software require packages to accommodate several CDs, making it difficult to select the desired CD. There is also the problem that the changer mechanism when changing the number 11 is multi-nL.

This invention was made in view of the above problem, and allows multiple discs to be played in succession by an hour wheel operation similar to that seen in a player that plays a single disc.
Alternatively, a small multi-disc player that can be played according to a program is provided.

[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, a chucking head fixed to one end of this slide table, and a plurality of disks. a rotating disk tray that can store the slide tables side by side on a flat surface; a drive device that pulls in the slide table and chucks it at a predetermined position; The flute body is provided with a rotation mechanism that moves to a certain position and a pickup mechanism that can reproduce recorded signals on the disk.

[Effect]

A rotating disk tray driven by a rotation control device that rotates to a predetermined position and stops at that point is mounted on the top surface of the slide table that pulls the disk into the housing, and the disk is moved to the playback position by this rotating disk tray. Since the disc is held on the turntable by a chucking head formed at one end of the slide table, the disc can be loaded and played by operations similar to those found in a normal disc playback device. At the same time, the mechanism for accommodating and sequentially reproducing a plurality of discs can be downsized.

〔Example〕

FIG. 1 is an explanatory diagram showing an outline of the multi-disc player of the present invention, where 1 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 areas 4A, 4A, .

4B... are alternately connected, and the chucking table of the spindle motor protrudes from the center part.
As will be described later, there are openings 4C, 4C, etc. that face the pickup device placed inside the housing. These four parts are useful when rotating the rotating disk tray 4.

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, and this part includes a rotation detector of the rotary disk tray 4, a positioning member, and a disk detector as described later. etc. 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 a child circuit board fixed to the upper surface of the chassis part 1 via a support plate.

FIGS. 2 and 3 show a retracting device for a slide table 3, a rotating mechanism for a rotary disk tray 4, and
and a plan view (partially cut away) and an exploded perspective view for explaining the drive mechanism of the disc playback block 7,
The same parts as in FIG. 1 are given the same numbers.

In these figures, the slide table 3 especially shown in FIG. A rack 13 that meshes with a loading gear 20 is provided. (
(Some parts are shown with solid lines) In the storage state y1 of 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 an advanced detector for detecting the presence or absence of a disk. It is fixed to the table 3 and detects and sets the position of the rotating disk tray 4 as described later.

As particularly shown in FIG. 2, the loading gear 20 is rotatably supported by the chassis part l, 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 slide table 3 is moved by driving the rack 13 on the lower surface of the slide table 3 in the direction of the arrow A using the float 20A carved in the area around the outer circumference of the loading gear 20. 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 7J20C is formed on the lower surface of the loading gear 20, and this cam groove 20C
As particularly clearly shown in FIG. 3, a dowel 32 formed on the sub-chassis 31 for retracting the optical block 8 is loosely fitted into the dowel 32.

L-shaped guide holes 33, 33, 33 are provided on both sides of this sub-chassis 31, and these guide holes 33, 33, 33 are provided on both sides of the box 34 that supports the optical block 8. A certain guide pin 35.35, (3
5) is M-fitted.

Therefore, when the loading gear 20 described above rotates clockwise, first the rack 13 of the slide table 3
is pulled into the housing in the direction of arrow A as shown in FIG. The rack plate 13 is fixed by the tip 26A of the stopper plate 26 being pushed.

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 pin 35.35 is located in the 1-shaped guide hole 33.3.
3, the box 34 will be lifted to one side along the shape of the guide hole 33.33.
The entire structure rises up inside the sub-chassis 31.

Then, the optical block 8 placed in the box 34 protrudes from the upper opening 36 of the sub-chassis 31.

Bearings 37, 37 are provided at several locations on the box 34, passing through the box 34 in the vertical direction, and are supported by slide shafts 38, 38 implanted in the chassis part 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 l.

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 a resilient material
．． 44... is fixed to the bottom surface of the box 34 to add earthquake resistance.

In addition, a spindle motor 45 and a turntable 46 for viewing and viewing the disc, which will be described later, are also part of the mechanical deck 40.
Although these are attached to the box 34, they may be fixed directly to the box 34.

Figures 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 Figure 4 is taken along lines XI and X2 in Figure 5 at 9J. are written to the right and left of the center 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 gear 4E is formed on the outer periphery of the rotating disk tray 4.
The gear IIa matches the gear 5A of the rotary motor 5 provided on the slide table 3. and slide table 3
A center shaft 4F is fitted into a rotary shaft 3A implanted in the rotary shaft 3A.

On the back side of the rotating disk tray 4, there are 3
Wooden circumferential rib 4G+, 4G2. 4G3 is provided, and the outermost circumferential rib 4G1 is provided with a positioning frame 4) (with one + mark, the middle, and the inner circumferential rib 4G1).
, 4G2 are 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 rack 4 HI is required at least as many times as the stopping positions 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 recessed portions 4H3 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 placed in the disk storage 14A rises slightly upward, and the attraction force of the magnet 6B of the disk holding member As a result, it is pressed onto the turntable 46, 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 this release II, in which 51 is a selection switch for specifying whether to play one disc or all stored discs; 52; is the reception window for the remote control, 5
3 is a program key that can display or select the stored disc or disc number; 54 is a display window that displays the playing time of the disc, track number, etc. 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, 5
9 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 used in ordinary disc players, such as a start button, a pause 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.

For example, when the selection button 51 is set to the one-disc performance mode, the slide table 3 can be returned to the playback state by pressing the opening/closing operation button 65 in that state.

That is, when the closing operation is performed, the aforementioned loading gear 20 rotates clockwise and engages the rack 13 of the slide table 3, and at the same time as it is pulled into the enclosure, the stopper plate 26 locks the slide table 3 within the enclosure. 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
, and the spindle motor 45 moves toward the L direction.

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 by the rotating motor 5.
The disc that was at the forefront of the disc is driven to the playback position.

Therefore, as shown in FIG.
When it enters the center opening and is pushed onto the chucking head 6 provided at one end of the slide table 3, it is attracted to the turntable 46 by the magnet 6B.
Turntable 46 and chucking head press plate 6C
The disc is held between the two, and rotational force is applied to the disc at the playback position.

Then, various servo rotations are operated according to commands from the control section of the electronic circuit, and the instrument enters a performance state.

In this case, as shown in FIG. 4, the chucking head 6 is fixed to one end of the slide table 3 and is configured to move with the slide table 3, so that the chucking head 6 is mounted on the rotating disk tray f. It is possible to set the slide table 4 at a low position to the extent that it does not come into contact with the disc being placed, and the height H of the slide table 4 can also be reduced, making it possible to make the entire player compact.

The rotation of the rotating disk tray 4 is controlled by the circumferential ribs 4G2. 4G3 Concave notch F'S 4
This is done by detecting H2 and 4H3 using microswitches 15A and 15B.

That is, first, by detecting only one concave notch z4H7 formed on the circumference, the rotary disk tray 4
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 by the total 'a 4ti'. can do.

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 H], 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 discs at the two consecutive playback positions is completed, the rotation is made by one disc in the direction shown by arrow 2 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.

[Effect of olfaction]

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 the multi-disc player has better playback than conventional players. This has the effect of significantly improving performance, and since the chucking head for holding the disc in the playback position on the turntable is fixed to one end of the slide table, the height of the slide table can be reduced. Regardless of the size of the player, the chucking member can be placed at a lower position, which has the advantage of reducing the overall height of the player.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an outline of the multi-disc player of the present invention, Fig. 2 is a top view showing a mechanism for bringing the slide table into a loading state, and Fig. 3 is an explanation of the drive mechanism of the optical block. FIG. 4 is a cross-sectional view of the rotary disk tray part, FIG. 5 is an explanatory diagram of the detection unit that sets the cylinder detection 1 position of the rotary disk tray, and FIG. 6 is the front panel of the present invention. FIG. 7 is a front view showing an example of this, and is an explanatory diagram of chucking. In the figure, 1 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 section, 5 is a rotating motor, 6 is a chucking head, 7 is a disk playback block, and 8 is a An optical block, 9 a loading drive mechanism, and 10 an electronic circuit board. Diagram 714 of chucking, shown on the back of 7'

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; and a loading device that sets the slide table and the disc playback block to a loading position, and above the playback position of the rotating disc tray, one end is held by the slide table. A multi-disc player characterized by being provided with a chucking head.