JPH07122950B2 - 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 changer type disc reproducing apparatus capable of setting a plurality of discs on a rotary table, and reproducing the disc when the disc transfer body is discharged during the reproduction. This prevents a new disc from being accidentally attached to the position where the inner disc should be attached.

[0002]

2. Description of the Related Art Conventionally, there has been known a disk reproducing apparatus in which a rotary table is placed on a tray so that a plurality of disks can be simultaneously set and continuously reproduced.
In the conventional disc reproducing apparatus of this type, when exchanging the disc, the reproducing must be stopped, and the disc cannot be exchanged by ejecting the tray 12 while reproducing the disc.

Therefore, as a solution to such a drawback of the conventional device, Japanese Patent Application No. 1-12 filed by the present applicant.
A disk reproducing device described in the specification of 4681 and the drawings has been proposed. FIG. 2 is provided there as an example. The tray 26 moves in the direction of arrow A with respect to the reproducing apparatus main body 28 and is stored and discharged. Tray 2
A turntable 30 is mounted on the table 6 so as to be rotatable in the direction of arrow B. The center of rotation 3 is on the turntable 30.
A plurality of disks (here 5) to hold the disk 1 around 2.
The disc holding portion 34 is formed. Here, the disk holding portion 34 has a groove 34a for a 12 cm CD and a 8 cm C.
It has a groove 34b for D. A notch 36 for inserting a reproducing unit is formed in the disc holding portion 34 toward the outer peripheral direction of the rotary table 30. An opening 38 is formed at the center of the rear end of the disc tray 26, and the reproduction unit 29 is pulled out from the tray 26 by communicating with the notch 36 of the disc holding portion 34 at that position and pulling out the reproduction unit 29 from here.
Enables the discharge of.

At the center of the rear end of the mechanical chassis 40 in the reproducing apparatus main body 28, a holder 42 having a turntable and a reproducing head as a reproducing unit 29 is provided below the tray 26 as shown by an arrow C in FIG. It is rotatably supported around. In addition, the mechanical chassis 40 has a tray 2
A disc clamper 46 is fixedly installed above 6 to face the turntable. The holder 42 and the disc clamper 46 form a disc mounting mechanism 45.

When the holder 42 is rotated upward while the tray 26 is housed in the reproducing apparatus main body 28, the turntable and the reproducing head are raised and inserted into the notches 36 of the disc holding portion 34A at the reproducing position. As a result, the disc 1 is placed on the turntable and the disc holding portion 3
It is pulled up from 4A and clamped by the disc clamper 46. In this state you can play back with the playback head.
Since the reproducing unit 29 is pulled out horizontally from the notch 36 and the opening 38, the tray 26 can be continuously reproduced.
The disc can be exchanged by pulling it out of the reproducing apparatus main body 28.

[0006]

[Patent Document 1] Japanese Patent Application No. 1-124
In the case where the tray 26 is ejected during reproduction to enable the conversion of the disk as in the disk reproducing apparatus described in Japanese Patent No. 681 and the drawings, in order to enable the disk exchange for many disk holding portions 34, The tray 26 is ejected from the reproduction apparatus main body 28 to the outside as much as possible. However, if so, the disk holding portion 34A at the disk reproducing position also comes out of the reproducing apparatus main body 28 by about half (see FIG. 2). Therefore, if a new disk is erroneously mounted here, when the tray 26 is pushed, this There is a risk that the new disc may collide with the reproducing unit 29 in the reproducing state and destroy the reproducing unit 29, the disc being reproduced, or the new disc.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a disc reproducing apparatus in which a new disc is prevented from being erroneously mounted at the mounting position of the disc being reproduced. .

[0008]

SUMMARY OF THE INVENTION The present invention relates to an apparatus body.
Move to the other side to store and eject multiple disc holders.
And a disk transfer body that has the disk transfer body.
A turntable and a reproduction
A playback unit having a head and the disc transfer body.
Opposite position of the turntable when stored in the main unit
One of the disc holders transfers one of
The disc mounted on the disc holder is used as the turntable.
A disc loading mechanism that allows the disc to be played back against
And the disc is being played while the disc is being played.
The transfer body can be ejected independently of the disc being played.
Eject from the main body of the disc playback device
First position, and the second position stored in the device body
It is arranged so that it can be moved during playback of the disc.
In the state where the disc transfer body is ejected from the apparatus main body,
Positioned in position and the playing disc is
It faces the disk holding part that was held before birth and
Part or all of the disk holding surface of the disk holder
Block to prevent a new data transfer from the outside to the disc holder.
Disc installation is prevented and the disc transfer body
Positioned in the second position while being stored in
Disk holding corresponding to the facing position of the turntable
The disc of the disc holding part is removed from the position where the disc is closed.
With the mounting surface open, the disc holder and the turntable are
Block that allows the disc to be transferred to and from the cable
Disc mounting prevention means composed of steps, and the disc
The loading prevention means transfers the disc during playback of the disc.
When the body is discharged from the device body,
Moved and the disk transfer body was stored in the device body
In the state, it comprises a driving means for driving to move to the second position .

[0009]

According to the present invention, the movable disk mounting preventing means and the driving means thereof are arranged, and when the disk transfer body is ejected, the disk mounting preventing means is changed to a state in which the mounting of the disk is blocked, In the state where the transfer body is housed, the disc mounting prevention means is moved to a state in which the disc mounting is allowed. A new disc is prevented from being loaded, and the playback unit and disc are prevented from being damaged.

[0110]

An embodiment of the present invention will be described below. Figure 1
FIG. 3 is a plan view showing an internal structure of a disc reproducing apparatus to which the present invention is applied in a tray discharge state. The same parts as those in FIG. 2 are designated by the same reference numerals. Tray 26
Moves in the direction of arrow A with respect to the playback device body 28 and is stored.
Is discharged. A turntable 30 is mounted on the tray 26 so as to be rotatable in the arrow B direction. A plurality of (five in this case) disk holding portions 34 for holding the disks 1 are formed on the rotary table 30 around a rotation center 32. Here, the disc holding portion 34 has a groove 34a for a 12 cm CD and a groove 34b for an 8 cm CD. A notch 36 for inserting a reproducing unit is formed in the disc holding portion 34 toward the outer peripheral direction of the rotary table 30.
An opening 38 is formed at the center of the rear end of the disc tray 26, and the reproduction unit 29 communicates with the notch 36 of the disc holding portion 34A at the disc reproduction position and remains in the reproduction state.
Is removed from here to enable the tray 26 to be discharged.
The tray 26 and the rotary table 30 form a disk transfer body.

FIG. 3 is a sectional view taken along the line D--D in FIG. 1 at the center of the rear end portion of the mechanical chassis 40 in the reproducing apparatus main body 28.
As shown by the arrow C, a holder 42 holding the turntable 31 and the reproducing head 33 is supported rotatably around a rotary shaft 44 as shown by an arrow C. Also, the mechanical chassis 4
At 0, a disc clamper 46 is fixedly installed facing the turntable 31. The holder 42 and the disc clamper 46 form a disc mounting device 45.

When the holder 42 is housed in the reproducing apparatus main body 28 and the holder 42 is rotated upward by a driving force of a motor or the like, the turntable 31 and the reproducing head 33 are raised to move the disk holding portion 34A at the reproducing position. It is inserted into the notch 36. As a result, the disc 1 mounted on the disc holding portion 34A is placed on the turntable, pulled up from the disc holding portion 34A, and clamped by the disc clamper 46. Playback head 3 in this state
3 can be reproduced. When the disc discharge operation is performed in the reproducing state, the reproducing unit 29 is horizontally pulled out from the notch 36 and the opening 38, so that the tray 26 can be pulled out from the reproducing device main body 28 and the disc can be exchanged while continuing the reproduction.

The tray 26 is provided at the center of the mechanical chassis 40.
A shutter support 50 is fixedly arranged along the moving direction of the. The movable closed hand on the lower surface of the shutter support 50 along the moving direction of the tray 26
Shutter 52 forming a step (disc device blocking means)
Is provided. Detailed configurations of the shutter support 50 and the shutter 52 are shown in FIG. The shutter support 52 is formed of a metal plate or the like, and is fixed to the mechanical chassis 40 by passing a screw through the hole 54. Shutter support 50
An opening 56 for allowing the disc clamper 46 to pass through is formed in the rear portion. Also, shutter support 50
A slit 58 for supporting the shutter 52 in a horizontal state and movably supporting it in the directions of arrows E and E ′ is provided at the front part of the
To 61 are formed.

The shutter 52 is made of a plastic plate, a metal plate or the like. In this embodiment, the width of the shutter 52 is formed to have a diameter of 8 cmCD or more, but if a transparent plate such as smoke is used, it can be confirmed whether or not the 8 cmCD is inserted. Even if the 8 cm CD is not transparent, it can be confirmed whether or not the 8 cm CD is inserted by forming the shape so that the entire 8 cm CD is not hidden or by making a hole or a slit. Also, 12 cmC
It can also be formed to have a diameter of D or more.

The shutter 52 covers a disk holding portion 34A of the disk reproducing device to prevent a new disk from being mounted, and a drive for sliding the shutter 52 in the arrow E direction (discharging direction). It comprises protrusions 64, 66 to which force is applied. The tip 62 is formed in an arc shape. In addition, the upper surface of the shutter 52 is inserted into the slits 58 to 61 of the shutter support 50 to hold the shutter 52 in a horizontal state, and the arrow E,
Guide bosses 71 to 71 for slidably supporting E '
74 is attached. The guide boss 71 is inserted from the rear end portion of the slit 59, and the front end pull 71 a thereof rides over the portion 76 between the slits 59 and 58 and the slit 58.
And supports the rear portion of the shutter 52 so as not to move in the vertical and horizontal directions. Further, the guide bosses 72, 73, 74 support the front portion of the shutter 52 so as not to move vertically and horizontally. With such a configuration, the shutter 52 can be slid with respect to the shutter support 50 in the directions of arrows E and E ′.

In FIG. 1, bosses 78 and 80 (protrusions) are formed on both sides of the opening 38 of the tray 26. The bosses 78 and 80 are the shutter 5 when the tray is ejected.
As a driving means for driving the tray 26, the shutter 52 is pulled out by contacting the rear end portions 64a and 66a (FIG. 4) of the protruding portions 64'66 of the shutter 52 when the tray 26 is ejected. Further, the shutter 5 is provided at the center of the front of the tray 26.
A lid 82 (projection) is formed so as to face the second tip portion 62. The lid 82 serves as a driving means of the shutter 52 when the tray is stored, and has a function of abutting and pressing the shutter tip portion 62 when the tray 26 is stored to push the shutter 52 into the reproducing apparatus main body 28.

The operation of the shutter 52 at the time of discharging and storing the tray having the above structure will be described. When the tray is discharged, as shown in FIG. 1, the tray 26 is discharged and the bosses 78 and 80 on the tray 26 come into contact with the protrusions 64 and 66 of the shutter 52 to pull out the shutter 52 (first
Position) . The engagement state between the boss 78 and the shutter protrusion 64 at the time of discharging the tray is shown in FIG. 5 as a sectional view taken along the line FF in FIG. When the shutter 52 is pulled out, the disc holding portion of the disc reproducing device (that is, during reproduction)
Disk 1 was retained before it was regenerated.
(Holding part) 34A is covered to prevent installation of a new disk. With respect to the other disc holding portions 34, the disc can be replaced and a new disc can be mounted. When the tray is ejected during disc reproduction, the rotary table 30 cannot be rotated. When the tray is ejected during non-reproduction (at this time, all the discs are removed from the turntable and placed on the tray 26), the rotary table 30 is rotatable and all the disc holders are held. It is possible to exchange disks for 34. The rotation of the rotary table 30 can be prevented by using, for example, an electrically driven lock mechanism.

When the tray is stored, the lid 82 of the tray 26 presses the shutter tip portion 62 to push the shutter 52 into the reproducing apparatus main body 28 as shown in FIG. 6 (second position).
Oki) . In this state, since the shutter 52 is removed from the disc holding portion 34A at the disc reproducing position, it does not interfere with the disc reproduction by the reproducing unit 29, and the disc being reproduced can be returned to the disc holding portion 34A.

[0019]

[Modification] The present invention can also be applied to a magazine rack as the disc transfer member and a suction type disc mounting mechanism. Further, in the above embodiment, the case where the present invention is applied to the CD player is shown, but the present invention can also be applied to other disc reproducing apparatuses.

[0020]

As described above, according to the present invention, the movable disk mounting means and the driving means thereof are arranged,
When the disc transfer body is ejected, the disc mounting prevention means is moved to a state in which the disc mounting is prevented, and when the disc transfer body is stored, the disc mounting prevention means is moved to a state in which the disc mounting is permitted. Therefore, it is possible to prevent a new disc from being accidentally loaded at a position where the disc being played is to be loaded, and to prevent damage to the playback unit and the disc.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional disc reproducing apparatus.

FIG. 3 is a sectional view taken along the line DD of FIG.

4 is a detailed view of a shutter support 50 and a shutter 52 of FIG.

5 is a cross-sectional view taken along the line FF of FIG.

FIG. 6 is a plan view showing a tray storage state of the disc reproducing apparatus of FIG.

[Explanation of symbols]

1 disc 26 tray (disc transfer body) 29 reproduction unit 30 rotary table (disc transfer body) 31 turntable 33 reproducing head 34 disc holding portion 34A disc holding portion at disc reproducing position (during reproduction)
Disc hold that you want the disc to hold before it is played
Part, the disk holding corresponding to the opposite position of the turntable
36 ) Notch 38 Opening 45 Disc mounting mechanism 46 Disc clamper 52 Shutter (disc mounting inhibiting means) 78, 80 Boss (driving means) 82 Lid (driving means)

Claims (1)

[Claims] 1. A disk transfer body having a plurality of disk holding portions which are moved with respect to the apparatus body to be stored and discharged, and a turntable and a reproducing head which are provided separately from the disk transfer body in the apparatus body. The playback unit and the disc transfer body housed in the main body of the apparatus .
Any of the disk holding portion in a position facing over down table
Or one transferred comprises a disk reproducibly instrumentation <br/> location to Lud disk mounting mechanism for a disc <br/> click mounted on the disc holding portion on the turntable, the disk said disk transfer body person while playing a
In a disc reproducing device which can be ejected independently of the disc being reproduced, the disc is accommodated in the first position ejected from the device body and the device body.
And the second position of
The disc transfer body was ejected from the device body during playback.
Is positioned at the first position in the state
Disc holding unit where the disc was held before it was played
Facing the disk device surface of the disk holding part
Block a part or all of it and protect the disk from the outside.
Prevents a new disc from being attached to the holding part
When the transfer body is stored in the mounting body, the transfer body is moved to the second position.
Positioned and corresponds to the opposite position of the turntable
The disc is removed from the position that closes the disc holding part
Hold the disc by opening the disc mounting surface of the holder.
The disc between the disc and the turntable
A disk mounting blocking means constituted by closure means for permitting, the disc mounting blocking means, said in the state in which the disk transfer member is discharged from the apparatus main body while playing a disc
It is moved to a first position, in a state in which the disk transfer body is accommodated in the apparatus body <br/> to move to the second position
A disk reproducing apparatus comprising a driving means for driving the disk.