JPH0736246B2 - Disc player - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a disc player capable of reproducing one or a plurality of rotating recording media continuously or in accordance with a preset program. is there.

[Outline of Invention]

A disc player according to the present invention is provided with a rotary disc tray capable of accommodating a plurality of discs mounted on a slide type drawer member, and automatically stores one or more discs accommodated in the rotary disc tray. Of the rotary disc tray, the rotation control and the chucking control of the rotary disc tray are made different depending on the position of the slide type drawer member and the reproduction state of the disc player. It is a thing. Therefore, the drive mechanism becomes compact, and the reproduction disc can be replaced quickly.

[Conventional technology]

2. Description of the Related Art As a reproducing device such as a record player or a compact disc, there is one in which a plurality of discs are set in the player device in advance and an arbitrary music piece can be played by an operation from the outside.

[Problems to be solved by the invention]

However, a player (music box) having such a changer function is originally intended to accommodate a large number of dozens of soft discs, so that the device becomes large in size and expensive, and for a general user. At the same time that it is difficult to popularize, at the same time, even for devices that target compact discs (CDs) as music software, a package for accommodating several CDs is required, and the desired CD is played. There is a problem in that the changer mechanism when doing is complicated.

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.

[Means for solving problems]

Similar to a conventional disc or record drive mechanism, a slide table on which a disc can be placed and pulled into the housing, and a plurality of discs arranged side by side on a flat surface are stored on the slide table. And a drive device for pulling in the slide table and chucking the slide table at a predetermined position, and rotating the rotary disc tray in accordance with the operation mode so that the disc to be reproduced is in a chucking position. A rotation mechanism that moves to the position and a pickup mechanism that can reproduce the recording signal of the disc are provided in the housing, and when the skip signal for rotating the rotating disc tray to select the reproduction disc is input, Depending on the state of the disc player, the chucking mechanism using the rotation drive device and optical block To control so that the behavior.

[Action]

In the state where the slide table is pulled out, for example, when a skip signal for shifting the rotary disc tray by one disc is input by the skip button, the rotary disc tray is rotated by one disc, but the slide table is pulled into the housing. If a skip signal is input during playback, if playback is in progress, move the optical block once to release the chucking of the disc, and then move the rotating disc tray to the next disc loading position. Rotate by a minute to put the disc in the disc storage part into the playback state. Even in this case, when the disk is not mounted on the chucking table of the optical block and the chucking is in a standby state, the disk is rotated as it is by a predetermined angle so that the desired disk is positioned at the reproduction position.

〔Example〕

FIG. 1 is an explanatory view showing an outline of a disc player according to the present invention. Reference numeral 1 is a chassis portion of the disc player, 2 is a front panel, and 3 is a slide table coming in and going out from a front opening of the front panel 2.

A circular rotary disk tray 4 is mounted on the concave surface of the slide table 3 as shown by the solid line on the slide table 3, and on the upper surface thereof, for example, five compact disks can be mounted. Disc storage portions 4A, 4A, ... Which are concave surfaces are formed.
Adjacent to the disc storage portions 4A, 4A ..., are recessed portions 4B, 4 so that the placed discs can be easily taken out.
Alternately, the chucking table of the spindle motor protrudes in the center, and the openings 4C, 4C are exposed to the pickup device arranged in the housing as described later. .. is provided. Note that 4D, 4D ... Are useful recesses 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, the rotary disc tray 4 will be described later.
Also provided are a rotation detector, a positioning member, a disc detector and the like. 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 reproduction block arranged on the bottom surface of the chassis portion 1. Inside the disk reproduction block 7, a loading mechanism 9 provided on the chassis drives the disk reproduction block to rise upward. The optical block 8 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.

2 and 3 show a retracting device for the slide table 3 and a rotating mechanism for the rotating disc tray 4 according to an embodiment of the present invention.
And a plan view (partially cutaway view) and an exploded perspective view for explaining the drive mechanism of the disk reproduction block 7,
The same parts as those in FIG. 1 are designated by the same reference numerals.

In these figures, the slide table 3 shown in FIG. 2 in particular is slidable by guide rollers 11 and guides 12 provided on both sides of the housing. A rack 13 is provided that meshes with the loading gear 20 that operates. In the housed state of FIG. 2, a rotary motor 5 of a rotary disc tray 4 provided at a corner portion of the slide table 3 is shown, and its gear 5A has a gear 5A of the rotary disc tray 4. It meshes with the gear 4E engraved on the outer periphery.

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 the disc, and these are slide tables. 3 is fixed to the rotary disc tray 4 as described later.
Position detection and position setting are performed.

As shown in FIG. 2, the loading gear 20 is rotatably supported by the chassis portion 1, and is rotated by the reduction gears 21, 22, the belt 23, the pulley 24, and the loading motor 25 as described later. Controlled.

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 the area around the outer periphery of the loading gear 20 to move the slide table 3 Move and half around the perimeter 20
The stopper plate 26 is rotated at the portion B 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 provided for raising the optical block 8 upward as shown in FIG. 3 in particular. Dowels formed on the sub chassis 31
32 is loosely fitted.

Then, stepped guide holes 33, 33, 33 are provided on both sides of the sub chassis 31, and these guide holes 33, 33, 33 are provided on both sides of the box 34 supporting the optical block 8. The guide pins 35, 35, (35) are loosely fitted.

Therefore, when the above-mentioned loading gear 20 rotates clockwise, first, the rack 13 of the slide table 3 is drawn into the housing in the direction of arrow A as shown in FIG.
When the gear 20A and the rack 13 are disengaged by 1/2 rotation, the stopper plate 26 drops into the half cutout 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. To do.

Then, when the loading gear 20 continues to rotate further,
The dowel 32 fitted in the cam groove 20C is the loading gear 2
Since it moves toward the center of 0, the sub chassis 31 is moved to the arrow B
Move in the direction.

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.

Then, the optical block 8 placed in the box 34
Will project from the upper surface opening 36 of the sub chassis 31.

It should be noted that bearings 37, 37 penetrating in the vertical direction are provided at several locations in the box 34, 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.

The optical block 8 has the feed shafts 41, 41 fixed to the mechanical deck 40, and the biaxial mechanism 42 slidably supported on the feed shafts 41, 41, as mounted on a normal CD player. The feed motor 43 is also attached.

Then, a plurality of support members 44, 44 made of an elastic material
It is fixed to the bottom of the box 34 by ... so that it is earthquake resistant.

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.

4 and 5 show a cross-sectional view of the rotary disc tray 4 and a part of the rear view thereof. The cross-sectional view of FIG. 4 is shown in FIG.
The state cut along the X ₁ line and the X ₂ line is shown on the left and right of the central axis L.

As shown in this figure, the above-mentioned disc storage section 4A
Has a circular concave surface, and the concave path 4B connecting these is also formed with a concave surface.

A gear 4E is formed on the outer periphery of the rotary disc tray 4, and the gear of the rotary motor 5 provided on the slide table 3 is provided.
Meshed with 5A. A central shaft 4F is rotatably fitted to a rotary shaft 3A that is planted in the slide table 3.

On the back side of the rotating disc tray 4, as shown in FIG.
Circular ribs 4G ₁ , 4G ₂ , 4G _{3 of the} book are provided, and the outermost circumferential rib 4G ₁ has _one position notch 4H ₁ , a middle rib, and an inner circumferential rib 4G ₁ , The 4G ₂ is provided with concave portions 4H ₂ and 4H ₃ for detecting the rotational position with a slight angle difference.

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, it 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.

Although FIG. 4 shows an embodiment in which the micro-switches 15A and 15B for detecting the recessed portions 4H ₂ and 4H ₃ are provided on the slide table 3, other methods such as optical or magnetic detection are shown. The 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 drawing, when the spindle motor 45 and the chucking table 46 are raised from the bottom during loading, the disc (not shown) in the disc storage portion 4A is lifted up a little and the disc holding member is pushed up. The magnet 6B is pressed by the magnet 6B 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 disc player of the present invention. 51 is a selection switch for designating whether to play one disc or all the stored discs, and 52 is a remote controller. Reception window, 53 shows the disc in which it is stored, or the disc key that is being played, or a program key that can be selected, and 54 shows the disc playing time, track number, etc., as is conventionally seen. Display window, 55 is 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. Also, 60A and 60B perform cueing (AMS) of the disc being played.
AMS operation button is shown.

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 pulled out to the front surface of the casing pair as shown in FIG. , Can be equipped with a disc.

In this case, when the disk storage section 4A at the front end of the slide table 3 is not empty, the rotary disk tray 4 is manually rotated to bring the empty disk storage section 4A to the front so that the desired disk to be played can be played. It can be placed in this disc storage portion 4A or a new disc can be replaced.

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 in that state to be in the playback state.

That is, when the slide table 3 is closed, the loading gear 20 rotates clockwise and meshes with the rack 13 of the slide table 3 and is pulled into the housing. 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.

Rotating disc tray 4 while slide table 3 is operating
Is rotated by a rotary motor 5 and is driven so that the disk at the foremost end of the rotary disk tray 4 comes to the reproducing position.

Then, the turntable 46 of the spindle motor 45 that has risen protrudes into the center opening of the disc and presses it against the chucking head 6 provided at one end of the slide table 3 to couple the chucking table and the disc. , A rotational force is applied to the disc at the playback position.

Then, various servo rotations are operated by a command from the control unit of the electronic circuit, and a playing state is set.

Such rotation control of the rotary disc tray 4 is performed by the circumferential rib formed on the back surface of the rotary disc tray 4 described above.
This is performed by detecting the recessed portions 4H ₂ and 4H ₃ formed in 4G ₂ and 4G ₃ with the microswitches 15A and 15B.

That is, first, the position information of the rotary disc tray 4 is stored in the memory or the like by detecting the recessed portion 4H ₂ formed only one on the circumference, and from this point, the recessed portion 4H 2 is stored.
_{When 3} is detected by another micro switch (15B) and the number is counted, the position of the disk storage portion can be specified by the counted value.

Therefore, when the count value reaches a predetermined number while rotating the rotation motor 5, the rotation motor 5 is stopped and the rotation stopper 14
Is activated, for example, in the case of this embodiment, the recessed portion 4H ₃
Rotating disc tray 4 by counting 5
Can be rotated a half turn, and the disc in the front row can be moved to the reproduction position.

Next, when the selection button 51 is set to the continuous performance mode, when the reproduction of the disc at the reproduction position described above is completed, the rotary disc tray 4 is rotated by one disc, and the next disc is put into the performance state.

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 revolution 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 part and stored in the internal CPU, you can check the empty disk storage part and rotate this empty disk storage part so as not to stop at the playback position by skip operation Control for rotating the disc tray can be performed.

Further, in the continuous performance mode, the order of playing the discs can be designated by the program button 58, and by repeating the play, the playing for a longer time can be enjoyed.

The disk kick button 57 can rotate the rotary disk tray 4 by one disk. For example, when the slide table 3 is open as shown in FIG. 7, the micro switch 15A (15B) is used to make a concave recess. Department
In the case of this embodiment, the rotary disc tray 4 is rotated 1/5 while detecting 4H ₂ (4H ₃ ).

However, if the disk skip button 57 is operated while the slide table is pulled inside the housing, during playback,
Alternatively, when the disc is chucked by the optical block 8 in the reproduction standby state, first, the loading block 20 is rotated in the opposite direction by approximately half a turn to move the optical block 8 downward to bring the chucking state. Release the rotating disc tray 4 as described above.
Performs a skip operation that rotates by the disk amount. Next, the loading gear 20 is rotated about 1/2 turn again to operate so as to chuck the disc that is at the new playback position.
Then, the disc number (storage number) at the playback position
Is displayed on the front panel surface.

If the disc skip button 57 is operated while the slide table 3 is pulled into the housing, the above-mentioned optical block is used in the chucking state where the disc at the playback position is not chucked by the optical block 8. The chucking is not released without driving 8, and the rotary disc tray 4 is immediately controlled to rotate to the next disc mounting position as described above.

〔The invention's effect〕

As described above, the disc player of the present invention mounts the rotary disc tray on the slide table,
Since a plurality of discs can be accommodated in the casing, there is an effect that the reproducing ability can be remarkably improved as compared with the conventional player, and discs can be exchanged and inserted very easily. There is an advantage.

Further, the skip operation performed for selecting the disc mounted on the rotary disc tray varies depending on the state of the disc player, and for example, when the slide table is pulled out, the rotary disc is rotated by one disc and slides. Even when the table is pulled in, when the table is in playback mode, the chucking operation by the optical block is canceled, and then the skip operation of the rotating disk tray is performed. It also has the advantage that

[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, and FIG. 3 is a view for explaining a drive mechanism of an optical block. FIG. 4 is an exploded perspective view, FIG. 4 is a sectional view of a portion of the rotary disc tray, FIG. 5 is an explanatory view of a detection unit for detecting and setting the position of the rotary disc tray, and FIG.
FIG. 7 is a front view showing an example of the front panel of the present invention.
The figure is a flowchart of the operation performed when a skip signal is input. In the figure, 1 is a chassis part, 2 is a front panel, 3 is a slide table, 4 is a rotary disc tray, 4A is a disc storage part, 5 is a rotary motor, 6 is a chucking head,
Reference numeral 7 is a disk reproducing block, 8 is an optical block, 9 is a loading drive mechanism, and 10 is an electronic circuit board.

Claims (1)

[Claims] 1. A slide table (3) configured to slide in and out of a housing in a horizontal direction, and a plurality of disks mounted on the slide table and arranged side by side on a plane. A rotary disc tray (4) provided with a plurality of disc storage parts (4A) capable of performing rotation, and a drive device (5, 15 (A, B) capable of rotating the rotary disc tray and stopping it at a predetermined position; 4H), a disc reproduction block (7) which is stored in the housing and is capable of reproducing a recording signal of the disc at the reproduction position of the rotating disc tray, and a loading device for setting the disc reproduction block to the loading position. (9), and when the skip signal for rotating the rotating disc tray by a predetermined angle is input, the slide table is provided with the casing. In the first state, the drive device for driving the rotary disc tray operates to rotate the rotary disc tray by a predetermined angle, and the slide table is pulled into the housing. In state 2, when the disc player is in the disc chucking state, the disc reproducing block is unchucked by the disc reproducing block loading device, and then the rotary disc tray is rotated to bring the desired disc to the reproducing position. A disc player characterized by being controlled so that a skip operation is performed.