JP2526812B2 - Disc player - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player capable of reproducing one or a plurality of rotary recording media continuously or in accordance with a preset program.

[0002]

2. Description of the Related Art As a reproducing device for a record player, compact disc or the like, a plurality of discs are set in the player device in advance, and an arbitrary music piece can be played by an external operation. There is something.

[0003]

However, since the player (music box) having such a changer function is originally intended to accommodate a large number of dozens of soft disks, the device becomes large in size, At the same time as it is expensive and difficult for general users to popularize, it is possible to use a CD even with a device that targets a compact disc (CD) as music software.
There is a problem that a package or the like for accommodating a plurality of sheets of CDs is required, and a changer mechanism for reproducing a desired CD becomes complicated.

Further, in a conventional player with a changer, it is complicated to mount a disc in the changer or to easily take out the disc and replace it with a desired disc when exchanging the disc. The present invention has been made in view of the above problems, and enables a plurality of discs to be played continuously or by a program by a simple operation as seen in a player that plays back one disc. At the same time, the mechanism for replacing the playback disk is simple.

[0005]

Similar to a conventional disc or record driving mechanism, a slide table on which a disc can be placed and pulled into a housing, and a plurality of slide tables arranged on the slide table are provided. A rotating disk tray capable of accommodating a number of disks arranged side by side on a plane, a drive device for pulling in the slide table and chucking the slide table at a predetermined position, and rotating the rotating disk tray according to an operation mode. , A rotation mechanism that moves to a chucking position, and a pickup mechanism that can reproduce a recording signal of a disc are provided in a housing, and the disc storage portions formed in the rotation disc tray are connected to each other by recesses. It was done.

[0006]

[Operation] With the slide table pulled out,
When a disc is mounted on the rotary disc tray, at least two recesses are formed around the disc storage portion, so that the discs can be mounted and replaced very easily by the recesses.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing an outline of a disc player according to the present invention, in which 1 is a chassis portion of the disc player,
Reference numeral 2 is a front panel, and 3 is a slide table which comes in and goes out from a front opening portion of the front panel 2. A circular rotary disk tray 4 is mounted on the concave surface of the slide table 3 as indicated by the solid line on the slide table 3, and a concave surface is formed on the upper surface thereof so that, for example, five compact disks can be mounted. .. are formed. Adjacent parts of the disk storage portions 4A, 4A, ... Are provided with recesses 4B, 4 so that the loaded disks can be easily taken out.
B ..... Alternatively, the chucking table of the spindle motor projects in the central portion, and openings 4C, 4C are provided so that the pickup device arranged in the housing faces as described later. .. is provided. Note that 4D, 4D ... Are useful concave portions when the rotary disc tray 4 is manually rotated.

Reference numeral 5 denotes a rotary motor for rotating the rotary disc tray 4, which is attached to the lower surface of the slide table 3, and in this portion, as will be described later, a rotation detector, a positioning member, and a disc of the rotary disc tray 4. Is also provided. Reference numeral 6 denotes a chucking head fixed to the slide table 3, and the lower side of the chucking head 6 is designated as a reproduction position.

Reference numeral 7 is a separate drawing of a disk reproducing block disposed on the bottom surface of the chassis portion 1. Inside the disk reproducing block 7, a loading mechanism 9 provided on the chassis raises the disk upward. The optical block 8 driven like this is installed inside. Reference numeral 10 denotes an electronic circuit board fixed to the upper surface of the chassis portion 1 via a support plate.

FIGS. 2 and 3 are plan views (partly for explaining the retracting device of the slide table 3, the rotating mechanism of the rotary disc tray 4 and the drive mechanism of the disc reproducing block 7 according to one embodiment of the present invention. 1 is a broken view) and an exploded perspective view, and the same parts as those in FIG. In these figures, in particular, the slide table 3 shown in FIG. 2 has guide rollers 11 whose both sides are provided in the housing.
The slide table 3 is slidable by a guide 12, and a rack 13 that meshes with a loading gear 20 described later is provided on the lower surface of the slide table 3. (Partially shown by solid line)

The storage state of FIG. 2 shows a rotary motor 5 of a rotary disc tray 4 provided at a corner of the slide table 3, and its gear 5A is engraved on the outer periphery of the rotary disc tray 4. It meshes with the gear 4E. Reference numeral 14 is a rotation stopper operated by a plunger (not shown), 15A and 15B are microswitches for detecting the rotational position of the rotary disc tray 4, 16 is a photoelectric detector for detecting the presence or absence of a disc, and these are slide tables. The position of the rotary disc tray 4 is fixed to the position 3 and the position of the rotary disc tray 4 is detected and set as described later.

As shown in FIG. 2 in particular, the loading gear 20 is rotatably supported by the chassis portion 1, and has reduction gears 21 and 22, a belt 23, a pulley 24, and
And 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 arrow A by the gear 20A engraved in an area of about 1/2 of the outer circumference of the loading gear 20 to move the slide table 3 in place. The stopper plate 26 is moved, and the stopper plate 26 is rotated at the half cutout portion 20B around the outer periphery to lock the rack 13. Further, a spiral cam groove 20C is formed on the lower surface of the loading gear 20, and the cam groove 20C is formed.
A dowel 32, which is formed in a sub chassis 31 for raising the optical block 8 upward, is loosely fitted therein, particularly as well shown in FIG.

On both sides of the sub chassis 31, stepped guide holes 33, 33, 33 are provided,
The guide holes 33, 33, 33 have guide pins 35 on both sides of a box 34 supporting the optical block 8,
35 and (35) are loosely fitted. Therefore, when the above-described loading gear 20 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.
0A and the rack 13 are disengaged, the stopper plate 26 falls into the half-cut portion 20B of the loading gear 20, and the rack plate 13 is fixed by the tip 26A of the stopper plate 26 which is biased by the spring 27.

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 31 moves in the direction of arrow B. At this time, since the guide pins 35, 35 of the box 34 on the lower side of the sub chassis 31 are fitted in the stepped guide holes 33, 33, they are lifted upward along the shape of the guide holes 33, 33. As a result, the entire box 34 rises up inside the sub chassis 31. And box 3
The optical block 8 placed in the sub-chassis 4
No. 1 is projected from the upper surface opening 36. In addition, the bearing portion 3 penetrating in the vertical direction is provided at several places of the box 34.
7, 37 are provided, and are supported by slide shafts 38, 38 which are planted in the chassis portion 1 of the main body.
Therefore, the optical block 8 can move only in the vertical direction at a specific position of the chassis unit 1.

In the optical block 8, the feed shafts 41, 41 are fixed to the mechanical deck 40, and the biaxial mechanism 42 slides with respect to the feed shafts 41, 41, as mounted on a normal CD player. Supported,
The feed motor 43 is also attached. Then, a plurality of supporting members 44, 44 ...
It is fixed to the bottom surface of the box 34 by and adds earthquake resistance. Although a spindle motor 45, which will be described later, and a turntable 46 on which a disc is mounted are also attached to the mechanical deck 40, these may be directly fixed to the box 34.

FIGS. 4 and 5 show a sectional view of the rotary disc tray 4 and a part of the rear view thereof. The sectional view of FIG. 4 is taken along the line X _{1 and the} line X ₂ of FIG. It is described on the right and left of the central axis L. As shown in this figure, the above-mentioned disc accommodating portion 4A is formed into a circular concave surface, and the concave path 4B connecting these is also formed into a concave surface. A gear 4E is formed on the outer periphery of the rotary disc tray 4, and a gear 5 of a rotary motor 5 provided on the slide table 3 is provided.
It is in mesh with A. A central shaft 4F is rotatably fitted to a rotary shaft 3A that is planted in the slide table 3. As shown in FIG. 5, three circumferential ribs 4G ₁ , 4G ₂ and 4G ₃ are provided on the back surface of the rotary disc tray 4, and the outermost circumferential rib 4G ₁ has a positioning notch 4H.
₁ in 1 place, middle and inner circumferential ribs 4G ₁ , 4G ₂
There is a slight angle difference in the recess 4H for detecting the rotational position.
₂ , 4H ₃ are provided.

The recessed portion 4H ₂ is for designating a specific position of the rotary disk tray 4, and the recessed portion 4H ₃ is provided for specifying the position of the disk storage portion 4A. Therefore, the stop position of the cut-out portion 4H ₁ at least rotary disk tray 4, that is necessary for the number of storage disks, at least the number of twice the case cut-outs 4H ₃ is if the number of storage disks is odd, as described below Are preferably arranged at an equal angle.

The microswitch 15A for detecting the concave portion 4H _2, 4H ₃ according to FIG. 4, although 15B showed examples provided in the slide table 3, light, or magnetic Alternatively Any detection device can be used. The chucking head 6 is fixed to one end of the slide table 3, and a disk pressing member including a support plate 6A, a magnet 6B, and a pressing plate 6C is loosely fitted to the chucking head 6. Therefore, as shown in the figure, when the spindle motor 45 and the chucking table 46 rise from the bottom at the time of loading, the disc (not shown) in the disc storage portion 4A floats a little upward, and the disc pressing member moves. It is pressed onto the turntable 46 by the attractive 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 disc player of the present invention. Reference numeral 51 designates a selection switch for designating whether one disc is played or all the stored discs are played. Is the receiving window for the remote control,
Reference numeral 53 is a program key for displaying or selecting the housed disc or the disc number being played, 54 is a display window for displaying the disc playing time, song number, etc. as is conventionally seen, and 55 is a repeat. Button, 56 is a time display button, 57 is a disk skip button, 58 is a program memory button, 59
Is a clear button. Reference numerals 60A and 60B denote AMS operation buttons for cueing (AMS) the disc being played. Reference numerals 61 to 65 denote operation buttons used in a normal disc player, such as a start button, a pose button, a fast-forward button, a stop button, and a slide table opening / closing operation button.

Since the outline of the disc player of the present invention is configured as described above, when the opening / closing operation button (65) of the slide table is pressed, the slide table 3 is placed on the front surface of the housing as shown in FIG. It can be pulled out and loaded with a disc. In this case, when the disc storage portion 4A at the foremost end of the slide table 3 is not present, the rotating disc tray 4 is manually rotated to bring the open disc storage portion 4A to the front so that the desired disc to be played can be played. It can be placed in the disc storage portion 4A or replaced with a new disc.

When the selection button 51 is set to the single-play mode, for example, the slide table 3 can be returned to the inside of the housing by the open / close operation button 65 to be in the reproduction state. That is, when the slide table 3 is closed, the above-described loading gear 20 rotates clockwise to engage with the rack 13 of the slide table 3 and retract into the housing, and at the same time, the stopper plate 26 moves the slide table 3 into the housing. Lock with. Then, when the loading gear 20 further makes a half rotation, the sub chassis 31 moves laterally, and the optical block 8 and the spindle motor 45 mounted on the box 34 ascend upward as described above. While the slide table 3 is in operation, the rotary disc tray 4 is rotated by the rotary motor 5 and is driven so that the disc located at the foremost end of the rotary disc tray 4 comes to the reproducing position.

Then, the spindle motor which is rising
The turntable 46 of the switch 45 is the center opening of the disc.
And is provided at one end of the slide table 3
Check by pressing on the chucking head 6.
Disc and the disc is in the playback position.
A rotating force is applied to the disk. And the control part of the electronic circuit
Various servo rotations operate according to commands from
It becomes a state. Such rotation control of the rotary disc tray 4
Is formed on the back surface of the rotating disc tray 4 described above.
Circumferential rib 4G₂ , 4G₃ Concave portion 4 formed on the
H ₂ 4H₃ By the micro switches 15A and 15B
It is done by detecting. That is, first on the circumference
Only one recessed section 4H₂ To detect
Position information of the rotating disc tray 4 to memory etc.
Remember, then from this point the recess 4H₃ Other micros
Itch (15B) detects and counts the number
And the position of the disc storage part is specified by the count value.
Can be Therefore, do not rotate the rotary motor 5.
Stop rotation motor 5 when the count value reaches a predetermined number
When the rotation stopper 14 is operated, for example, this embodiment
In case of, recessed part 4H₃ By counting 5
The rotating disc tray 4 can be rotated half a turn,
You can move the disc that was in the row to the playback position.
Become so.

Next, when the selection button 51 is set to the continuous performance mode, when the reproduction of the disk at the reproduction position described above is completed, the rotary disk tray 4 is rotated by one disk and the next disk is set to the performance state. Become. In this way, when 5 discs are stored, 5 discs can be continuously played. In this case, when the rotary disc tray 4 makes one rotation by the rotation control performed at the time of loading, the number of discs in the disc storage portion is detected by the photodetector 16 or the like provided on the lower surface of the slide table, and the program key 53 is displayed. Since it is displayed on the section and stored in the internal CPU, the open disk storage section can be confirmed, and the open disk storage section is rotated so as not to stop at the playback position due to the skip operation. Control for rotating the disc tray can be performed.

In the continuous performance mode, the order of playing the discs can be designated by the program button 58, and by repeating the play, a longer playing time can be enjoyed. The disk skip button 57 can rotate the rotary disk tray 4 by one disk. For example, when the slide table 3 is open, the micro switch 15A (15
While detecting the recessed portion 4H ₂ (4H ₃ ) by B),
In the case of this embodiment, the rotary disc tray 4 is rotated 1/5. However, when the disc skip button 57 is operated while the slide table is pulled into the housing, the loading gear 20 is first rotated in the reverse direction during reproduction, that is, when the disc is chucked by the optical block 8. By turning about half a turn
The optical block 8 is moved downward to release the chucking state, and the skip operation of rotating the rotary disk tray 4 by one disk is performed as described above. Next, the loading gear 20 is rotated about 1/2 turn again to operate to chuck the disc newly placed at the reproduction position. Then, the disc number (storage number) at the reproduction position is displayed on the front panel surface.

When the disc skip button 57 is operated while the slide table 3 is pulled in, when the disc at the reproduction position is not chucked by the optical block 8 and is not in the standby state,
The chucking release and setting operations are omitted without driving the optical block 8 described above, and the rotary disc tray 4 is controlled to immediately rotate to the next disc mounting position.

[0026]

As described above, in the disc player of the present invention, the rotary disc tray is mounted on the slide table so that a plurality of discs can be accommodated in the housing. There is an effect that the reproduction ability can be significantly improved by comparison,
Further, there is an advantage that the disc can be replaced and inserted very easily. Particularly, since the disc player of the present invention is formed so that the plurality of radial concave disc storage portions formed in the rotary disc tray are connected to each other by the concave paths, the discs are loaded in the storage portions. When placed or removed from this storage, the presence of this recess allows the side of the disc to be directly grabbed with a finger,
This has the effect that the disks can be easily replaced frequently.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an outline of a disc player of the present invention.

FIG. 2 is a plan view showing a mechanism for putting a slide table into a loading state.

FIG. 3 is an exploded perspective view for explaining a drive mechanism of an optical block.

FIG. 4 is a sectional view of a portion of a rotary disc tray.

FIG. 5 is an explanatory diagram of a detection unit that performs position detection and position setting of the rotary disc tray.

FIG. 6 is a front view showing an example of the front panel of the present invention.

[Explanation of symbols]

 1 chassis part, 2 front panel 3 slide table 4 rotary disk tray 4A disk storage part 4B recessed path 5 rotary motor 6 chucking head 7 disk playback block 8 optical block 9 loading drive mechanism 10 electronic circuit board

Claims (3)

(57) [Claims] 1. A slide table configured to slide in and out in a horizontal direction with respect to a housing, and a concave portion mounted on the slide table and capable of accommodating a plurality of discs arranged side by side on a plane. A rotary disk tray provided with a plurality of disk storage portions, and a disk playback block that is stored in the housing and is capable of playing back a recording signal of a disk at the playback position of the rotary disk tray. A disc player, characterized in that each of the plurality of disc storage portions consisting of is provided with a plurality of recesses so as to be continuous with the outer peripheral portion thereof. 2. The rotating disk tray is configured such that the plurality of disk storage portions are in communication with each other by the plurality of recesses.
The disc player described in. 3. The disc player according to claim 1, wherein the recess is set to have a depth substantially equal to that of the recess of the disc storage portion.