JP3403833B2 - Disc playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention
Discs) Discs such as players and CD-ROM drives
Regarding raw equipment. [0002] 2. Description of the Related Art In recent years, a disk using an optical disk as a recording medium has been developed.
The size and weight of disc playback devices have been reduced, and
Disk drive such as a CD-ROM drive built into the computer
The development of a disk regeneration device has been actively carried out. For example,
Cabinet with built-in backup and disk drive mechanism
Tray loaded with optical disk from tray
There is a disk playback device or the like configured to be able to do so. [0003] Such a tray horizontal loading type
In a disc recycling device, the tray
Tray and optical pickup or disk drive mechanism
To avoid the interference of
Optical pickup and disk drive mechanism
For moving the loaded unit up and down with respect to the height of the tray.
Mechanism is provided. Further, in such a disk reproducing apparatus,
The tray in place in the cabinet.
A tray lock mechanism is provided. This tray
The lock mechanism is, for example, shown in FIGS.
There is something like that. That is, in these figures, 21
Are the locking pins 35a and 36a provided at the tip of the tray.
Guide and hold the tray in place in the cabinet
With guide grooves 37, 38 for locking with
It is a lever. The lock lever 21 is used to insert the tray /
In the direction (arrow BB 'direction) perpendicular to the discharge direction
It can slide freely, and when the tray is inserted,
The locking pins 35a and 36a are guide grooves of the lock lever 21.
37, 38 (see FIG. 20), and lock lever 21
Slide in the direction of arrow B 'while resisting the pulling force of the spring 28.
While entering the guide grooves 37 and 38.
Then, when the tray has been inserted a predetermined distance,
The clever 21 slides in the direction of arrow B by the force of the spring 28.
And the locking pins 35a, 36a are inserted into the guide grooves 37, 38.
Reaches the deepest part and is fixed at this position (see FIG. 21).
See). Thus the tray is in place in the cabinet and in front
Locked against rear left and right movement. [0005] SUMMARY OF THE INVENTION
The configuration of the tray lock mechanism is relatively complicated, and
It requires many parts. Therefore,
It takes up a lot of space in the cabinet,
It hinders shape and weight reduction. [0006] The present invention is to solve such a problem.
Tray with a simple structure and securely.
Can be positioned and fixed at a fixed position in the
Reduce the size and thickness of the entire device and simplify assembly work
To provide a disc playback device that can be planned
I have. [0007] DISCLOSURE OF THE INVENTION Disc playback apparatus of the present invention
In order to achieve the above-mentioned purpose,
The loaded tray to the tray of the main unit.
A removable optical disk along the surface direction of the
In the disc playback device, at least drive the optical disc
Equipped with moving disk drive mechanism and optical pickup
Disc playback of the mechanical unit and the mechanical unit
Between the first position and another second position.
Moveable along the thickness direction of the optical disk mounted on the
And insert the tray into the housing.
Accordingly, the mechanical unit is moved from the second position to the first position.
A mechanical unit moving mechanism for moving to a position of
The mechanical unit and the trayOn each opposing surface of each other
Free insertion and removal in the thickness direction of the discProvided in the
When the power units are in the first position,
A predetermined positional relationship between the mechanical unit and the tray is established.
RaiseFixed pin and pinhole that restrains itWhen
It is provided with. [0008] According to the present invention, there is provided an optical disk thickness direction of a mechanical unit.
To the position where the disc can be played along
Provided on the mechanical unit and the trayFixing pin and
And the pinholes that restrain itEngage, mechanical uni
The predetermined positional relationship between the tray and the tray is established and fixed.
You. Therefore, the tray can be positioned and fixed with a simple configuration.
It can be achieved reliably, so that the whole device is small and thin, and
The assembly work can be simplified. [0009] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Will be described. FIG. 1 shows an optical disk according to an embodiment of the present invention.
It is a perspective view showing the appearance of a reproducing device. In the figure,
1 is a cabinet, 2 is a front panel. Front panel
2 puts in and out the tray 10 on which the optical disk is mounted
Opening 3 and an electrical command for tray discharge.
Eject switch 4 for applying force, and
Insert wire etc. when automatic ejection of the laser 10 becomes impossible
Small holes 5 for manually forcibly discharging the tray
Have been killed. FIG. 2 shows the internal structure of the optical disk reproducing apparatus.
Fig. 3 is a perspective view showing the cabinet 1 from the back side with the cabinet 1 removed.
FIG. 2 is a perspective view showing a state where the tray 10 is pulled out from FIG. 2.
4 is an exploded view thereof. In each figure, the cabinet
G1 is omitted. In these figures, reference numeral 20 denotes a mold resin.
Frame, 30 is a pickup unit (PU Uni
We call it. ), 40, 41
10 and the PU unit 30 and the respective
It is a pair of sliders for guiding movement. (Details of Frame 20)
20 will be described in detail. Both sides inside frame 20
The sliders 40 and 41 in the directions of arrows XX '.
Slider support portions 21 and 2 for slidably supporting
1 is provided. The frame 20 also has one
The tray 10 is connected via a motor mount 22 provided on the body.
Into the cabinet 1 (loading) and discharge
Rohde, the power source for unloading
A motor 23 is provided. More frames
20, the slide operation of each of the sliders 40 and 41 is described.
Attach the connecting member 50 (see FIG. 6) for synchronizing
A connecting member mounting portion 24 is provided for connection. In addition
And the clamper 60 is rotatably held on the frame 20.
Mounting portion 25 is provided. (Details of Tray 10)
Details will be described. An optical disk (Fig.
(Not shown), a disk mounting portion 11 for mounting the
A part of the surface of the optical disk placed on the disk
To be exposed facing the transport area of the optical pickup 31
Windows 12 are opened. Also, both sides of the tray 10
The slider engaging projection 1 is provided on the entire surface in the longitudinal direction.
3, 13 are protrudingly provided. Each slider engagement protrusion
The protrusions 13 and 13 are provided on the sliders 40 and 41, respectively.
Guide grooves 42, 42 (see FIG. 5).
ing. As a result, the tray 10 has the sliders 40, 4
1 so that it can move horizontally in the direction of arrows XX '
Is done. In addition, a rack gear is provided on one inner surface of the tray 10.
14 are provided. This rack gear 14 is
And various gears.
You. Also, on the back surface of the disk mounting portion 11 of the tray 10,
A pin hole 15 for positioning is protruded. This pic
Fixing pin protruding from the PU unit 30 in the hole 15
The tray 10 and the PU are inserted by inserting
The unit 30 is positioned and fixed to each other. (Details of PU Unit 30)
The details of the knit 30 will be described. PU unit 30
Is an optical pickup for reading information from the optical disc surface.
And the optical pickup 31 in the radius direction of the optical disc.
Pickup mechanism 33 for feeding in the
While holding the optical disk between the
Turntable and disk motor for rotating the
And a disk drive mechanism composed of
Frame 35 for integrated support and other prints
It is composed of a wiring board and the like. The frame 35 has
The fixing pin 32 described above is provided integrally. in addition,
The sliders 4 are provided on both sides of the frame 35, respectively.
Guide holes 43, 44, 45, 46 provided in 0, 41
(See FIG. 5) Guide pins 36a, 36b inserted through
36c and 36d are protruded. (Details of the sliders 40 and 41)
The details of the das 40 and 41 will be described. Figure 5 shows the slider
Connection of 40, 41 with tray 10 and PU unit 30
It is a perspective view which shows a relationship. As shown in FIG.
Each of the sliders protruding from both sides of the tray 10
The projections 13, 13 are fitted and the tray 10 is
Horizontal guide for slidably supporting in X 'direction
Grooves 42, 42 are provided. Also, individual sliders
40 and 41 have two guide holes 43 and 44, respectively.
45, 46 are provided, and each guide hole 43, 44 and
And 45 and 46 have the frame of PU unit 30 respectively.
Guide pins 36a, 36b projecting from the side of
36c and 36d are inserted. Each guide hole 43 ~
46 has horizontal guide paths a and c at both ends, respectively.
An inclined guide path b having a predetermined inclination angle is provided at the intermediate portion.
In other words, each slider 40, 41 has an arrow X-
The PU unit 30 is kept at a constant
It is configured to be able to move up and down in the height range. A slider is provided at the lower end of each of the sliders 40 and 41.
Rack gears 47 and 48 are provided.
7 and 48, as shown in FIG.
The gears are engaged with gears 51 and 52 fixed to the ends.
The connecting member 50 is provided at each end of the shaft 53 with the gears 51,
52 is fixed, and the rotation
It is attached in the state where it is. In short, each slider
40, 41 are connected via the connecting member 50, and
It is configured to slide synchronously. Further
In addition, one slider 41 has a loading motor 2
3 meshes with a gear 61 coupled via various gears.
A lock gear 49 is provided. (Power transmission system of loading motor 23)
Here, the power transmission of the loading motor 23 is described.
The configuration of the system will be described with reference to FIG. Loading mode
Motor 23 and various gears are mounted on the motor mount 22 of the frame 20.
(See FIGS. 3 and 4)
The motor gear 62 coaxially fixed to the motor shaft 23 is
It is connected to the clutch gear 64 via the relay gear 63.
You. FIG. 7 shows the structure of the clutch gear 64.
It is a top view and a sectional view. As shown in the figure,
The first gear a and the first gear a shown in FIGS.
And the second gear b. Note that the first gear a
Corresponds to the second gear in the claims, and the second gear is
This corresponds to the first gear in the present invention. (C) is each gi
A plan view showing a state in which a and b are superimposed, and each gear
It is sectional drawing which shows how to overlap a and b. The first gear a
2 is provided with an engagement protrusion a1 on the surface facing the gear b.
Become. On the other hand, the second gear b was superimposed on the first gear a.
In this state, the engagement protrusion a1 can be accommodated in the gear b.
Except for the engagement part (shaded area) shown in b1, the inside is
It has a hollow shape. And the first gear a
Is a motor gear via a relay gear 63 as shown in FIG.
A power transmission from the motor 23
You. The first gear a is provided integrally with a small-diameter gear a2.
The small-diameter gear a2 is a gear provided on the slider 41.
Gear 49. On the other hand, the second gear b is always
It is engaged with a rack gear 14 provided on the tray 10. The role of the clutch gear 64 is as follows.
The power of 3 is raised by the tray loading mechanism and the PU unit.
Not to mention simultaneously transmitting to the descending mechanism,
After the loading of the tray 10, the PU unit lift
Power is transmitted only to the structure to raise and lower the PU unit 30
Operation (toward the position (height) where disc clamping is possible
Of the tray 10 is continued, and
Just before the start of loading, the PU unit
Only when the power of the motor 23 is transmitted, the PU unit 3
0 in the direction away from the disk surface.
In order to realize the operation. FIG. 8 shows the operation of the clutch gear 64.
FIG. FIG. 8A shows loading of the tray 10.
And the state at the time of unloading. Rohde
At the time of driving, the first gear a
It is driven in the direction of the mark Ra. At this time, the second gear b
The engaging portion b1 is hooked by the engaging protrusion a1 of the first gear a.
In the stopped state, so that the second gear b is
It rotates simultaneously in the same direction as the gear a (the direction of the arrow Rb).
The engaging portion b1 of the second gear b is engaged with the first gear a.
Shape that can be elastically deformed by pressing from projection a1
At this time, the engaging portion b1 of the second gear b is
The load applied is only the transport resistance of the tray 10 and deforms.
It is less than that. When unloading, the first gear a
Is driven in the opposite direction of the arrow Ra by the power of the motor 23.
It is. At this time, the engaging portion b1 of the second gear b is connected to the first gear
a in the state where it is completely hooked by the engagement projection a1
is there. Therefore, the second gear b has the same direction as the first gear a.
(The direction opposite to the arrow Rb). FIG. 8B shows the loading of the tray 10.
(Tray 10 is in cabinet 1
(The state horizontally moved to the limit). I mentioned earlier
As shown in this figure, this disc player
The PU unit 30 is also configured to continue the lifting operation.
The power of the motor 23 after loading is completed.
Therefore, the first gear a is driven in the direction of the arrow Ra. one
On the other hand, the clutch engaged with the rack gear 14 of the tray 10
The second gear b in the gear 64 is the same as the end of the loading.
Sometimes its rotation is regulated. Therefore the bullet
The engaging portion b1 of the second gear b having a shape capable of sexual deformation is:
The bullet is constantly pressed by the pressing from the engaging projection a1 of the first gear a.
Sexual deformation, releasing the latched state,
Only one gear a rotates alone in the direction of the arrow Ra. this
The rotation of the first gear a is performed by the rack gear 49 of the slider 41.
To the PU unit lifting / lowering mechanism including the slider 41.
As a result, the PU unit 30 moves up and down
(Moving to a position (height) where squaring is possible)
Only continues after that. FIG. 8C shows the vertical movement of the PU unit 30.
FIG. 10 is a diagram showing a state of the clutch gear 64 at the time when the operation is completed.
is there. Until this state, the first gear a rotates alone. When unloading, first, the motor
By the power of 23, the first gear a moves in the opposite direction of the arrow Ra.
When driven, the PU unit 30 moves up and down (disc).
(Moving away from the surface) and then FIG. 8 (B)
After the state of FIG. 8A, the locking of the gears a and b shown in FIG.
Then, the tray 10 is discharged. (Details of Disc Clamp Mechanism)
The details of the disc clamp mechanism will be described. FIG. 4, FIG.
6, in FIG. 9, reference numeral 25 indicates a clamper 60 rotatably held.
It is a clamper mounting part for holding. This clamper mounting
The part 25 is fitted with the clamper 60 as shown in FIG.
At three places around the opening to be inserted, place the clamper 60 from above.
Claw portions 26, 26, 26 for pressing are provided. Kula
The damper 60 has these three claw portions 26, 26, 26 and an opening.
In a rotatable state with the pedestal 27 provided at the lower part of the part
Retained from below. Here, the claw portion 26 is a clamper 6
0 can be elastically deformed by pressing when mounted from above
It has such a shape. Specifically, the claw portion 26
When the clamper is attached, the nail is
The tip has a taper for causing the portion 26 to elastically deform,
Also, after mounting, the clamper 60 is
It has a horizontal clamper holding surface so that it does not come off.
ing. The clamper 60 has a magnet inside.
(Not shown), the turntable of the disk drive mechanism
Magnetically coupled with a magnetic material (not shown) fixed to the
The optical disk D is fixedly held between the turntable 28 and the optical disk D.
Carry. (Details of Disk Drive Mechanism) FIG.
FIG. 3 is an exploded view showing a configuration of a disk drive mechanism. 9 and 1
0, the disk drive mechanism is a turntable
28 and a disk model for driving the turntable 28
And the spring 29 on the turntable 28
Mounted on the optical disc D on the turntable 28
And a centering 37 for positioning at the center of the
Is done. FIG. 11 shows the turntable 28 and the center
6A and 6B are a plan view and a cross-sectional view illustrating a configuration of the ring 37. In the figure
As shown, the turntable 28 has a centering 3
7 and three equal places around this centering 37
Protruding plates 37a, 37b, 3
Insertion recesses 28a, 28b, 28c for inserting 7c
Is provided. Such insertion recesses 28a, 28b, 2
8c, the protruding plates 37a, 37b, 37c are fitted.
Fitting portions 28d, 28e, 28f for holding
Stoppers S1, S2, S3 are provided integrally with sandwiching them
Have been. Centering 37 on turntable 28
When mounting, first, as shown in FIG.
Turn each protruding plate 37a, 37b, 37c of the ring 37
Position of each insertion recess 28a, 28b, 28 of table 28
Fit the two together. At this time, each projection plate 37a,
The height position of the upper end face of each of the stoppers S
1, S2, S3 so that it is lower than the height position of the lower end face.
Also, do not oppose the centering 37 against the force of the spring 29.
Push firmly. Next, press the centering 37 firmly.
Rotate in the direction of the arrow while keeping it in place, as shown in FIG.
Thus, each of the projecting plates 37a, 37b, 37c is
Take it to the position of 28d, 28e, 28f. That
Then, release the finger from the centering 37 to
The taring 37 is lifted up by the force of the spring 29.
Is fixed at that position. (Synchronization confirmation structure of each slider 40, 41)
Details) Next, each slider in this disc player
6 and 18 for the synchronization confirmation structure of 40 and 41
Will be described. As described above, each of the sliders 40, 41
Are connected through a connecting member 50, whereby each slide is connected.
Are configured to slide in sync
You. Here, the sliders 40 and 41 and the connecting member 50 are
Gears 5 of the connecting member 50
1, 52 are rack gears 47, 4 of the respective sliders 40, 41.
8 is not meshed at a specific gear position,
0, 41 can be slid properly synchronized
I can't. Therefore, in this embodiment, as shown in FIG.
In each of the sliders 40 and 41, a hole 4
0b and 41b, respectively, and
The sliders 40 and 41 are connected to both walls 201 and 202, respectively.
If they are in the correct position when they are joined by the joining member 50
Overlap with the holes 40b, 41b of the sliders 40, 41
Confirmation windows 20d, 20d are provided. Therefore, the product group
At the time of the standing, the worker holds the holes 40b of the sliders 40 and 41,
41b at the positions of the confirmation windows 20d and 20d of the frame 20
By attaching the connecting member 50 together, easy and accurate positioning
The sliders 40 and 41 are connected by the connecting member 50
Can be. (Details of tray loading operation)
In addition, the tray loading
And description of the lifting and lowering operation of the PU unit
I do. FIG. 13 is a side view showing the operation during tray loading.
FIGS. 14 to 17 are plan views thereof. FIG. 3, FIG. 13 (A) and FIG.
This shows a state when the tray 10 is being discharged. This
As shown in these figures, when the tray is discharged, the PU unit 3
0 guide pins 36a, 36b, 36c, 36d
Guide holes 43, 44 provided in the sliders 40, 41,
45 and 46 are located on the upper horizontal guide path a.
That is, the PU unit 30 is moved up and down in FIG.
Turn table 2 of PU unit 30
8 and the clamper mounting portion 25 of the frame 20.
The clamper 60 is in a state separated from the clamper 60. On the other hand, in FIG.
As shown, a rack gear 14 provided on the tray 10 is provided.
Is always in mesh with the second gear b of the clutch gear 64
is there. The loading of the tray 10 is performed by a user's finger.
Start by pushing tray 10 in the direction of arrow X '
Is done. When the tray 10 moves a certain distance,
Switch 70 mounted on the frame 20
Is electrically detected by the
Loading motor 23 is activated
Is done. The starting of the loading motor 23 causes the
The entire switch gear 64 rotates in the direction of the arrow,
The tray 10 is automatically drawn inside. Tre
When the retraction amount of the -10 reaches a predetermined distance, FIG.
As shown in FIG.
Abuts on one end 81 of the ８０80. This rotating lever 80
As shown in FIGS. 4 and 5, the support shaft is mounted on the frame 20.
82 so as to be rotatable, and the other end 8
3 pushes one slider 40 to the front side (arrow X direction)
To come into contact with the end face of the slider 40
ing. Therefore, on the insertion side end face 10a of the tray 10,
One end 81 of the rotating lever 80 contacts the rotating lever 80
Is rotated in the direction of arrow C, so that the slider 40
It starts to slide toward the front (in the direction of arrow X). Sly
When the slider 40 moves, the slider 40 and the connecting member 50
The other slider 41 connected via the
It slides in the direction of arrow X in synchronization with 40. After that, the tray 10 is continuously pulled in.
As shown in FIG. 16, as shown in FIG.
The outermost surfaces 16a and 16b correspond to the innermost surface 20c of the frame 20.
The draw-in operation of the tray 10 is completed when the contact is made.
You. FIG. 13B is a side view at this time.
Each guide pin 36a, 36b, 36 of the U unit 30
c and 36d are guides provided on the sliders 40 and 41, respectively.
It is located on the inclined guide path b of the holes 43, 44, 45, 46.
ing. That is, the PU unit 30 is moved
Located almost in the middle. At this point, as shown in FIG.
The gear 40 is moved to a position where the rack gear 49 can mesh with the gear 61.
Moving through the clutch gear 64 etc.
Each power is transmitted by the power of the
The riders 40 and 41 are further moved in the arrow X direction. This
At this time, as described above, the structural characteristics of the clutch gear 64
Therefore, the power of the motor 23 to the tray loading mechanism
Is cut off, and the lifting mechanism of each of the sliders 40 and 41 is
Only power is transmitted. FIG. 17 shows the completion of the movement of each slider 40, 41.
This shows the state after loading the tray 10 in this state.
Is completed. FIG. 13C is a side view at this time.
At this time, each guide pin 36 of the PU unit 30
a, 36b, 36c and 36d are attached to the sliders 40 and 41, respectively.
Water at the lower stage of the provided guide holes 43, 44, 45, 46
It is located on the flat guide path c. That is, PU unit 3
0 is located at the lower end in FIG.
Thus, the turntable 28 of the PU unit 30 and the
The clamp attached to the clamper attaching portion 25 of the frame 20
Magnetic coupling is achieved with the optical disk
It is. That is, clamping of the optical disk is achieved. Further
At this time, the fixing pins 3 protruding from the PU unit 30
2 is provided on the back surface of the disk mounting portion 11 of the tray 10
Into the pinhole 15, which makes the tray 1
0 and the PU unit 30 in each of the up, down, front, back, left, and right directions
Are positioned and fixed to each other. The ejection of the tray 10 is performed by the eject switch 4
Initiated by pressing. The controller is
When the eject detection signal of the
Loading motor 23 rotates in the opposite direction to loading
This is controlled to drive in the direction. This allows P
The U unit 30 is moved from the position (height) in FIG.
Move to the position (height) of (B) and release the disc clamp.
I will After that, the case of the loading operation
The tray is discharged in exactly the reverse order, and the tray is discharged to the specified position.
The fact that the ray 10 was ejected was mounted on the frame 20
When the switch 70 electrically detects the
23 stops and the tray 10 is pulled out with the finger
This completes the unloading of tray 10
Become. Next, in this disc reproducing apparatus,
Loading mechanism including loading motor 23 failed
Tray 10 from the cabinet 1
The operation for forcibly discharging will be described. As shown in FIG. 1, the front panel 2 has a needle
A small hole 5 into which gold or the like can be inserted is provided.
Wire, etc., and insert one of the slides as shown in FIG.
Press the tip of the wire 100 or the like firmly on the end face 40a of the
Hit it. As a result, each slider 40, 41
Forcibly slide in the X 'direction to raise the PU unit 30
Raise it. Here, the slider 41 is forcibly moved in the direction of the arrow X '.
As a result of the movement, as shown in FIG.
Rotary lever 80 with which rider 41 and one end 83 are in contact
Rotates around the support shaft 82 in the direction of arrow C ', and as a result,
The tray 10 is pushed out to the front side. At this time, PU Uni
The fixing pin 32 of the tray 30 is
After that, pull the tray 10 forward with your finger.
I can start. As described above, the optical disk of this embodiment is
According to the reproducing apparatus, for example, as shown in FIGS.
Position on the back surface of the disk mounting portion 11 of the tray 10
A pinhole 15 for determination is protruded, and this pinhole 15 is formed.
A fixing pin 32 protruding from the PU unit 30 is inserted into the
By being fitted, the tray 10 and the PU unit 30
Are positioned and fixed to each other.
-10 positioning can be reliably achieved, and
To reduce the size and thickness of the body and simplify the assembly work
Can be. [0043] According to the present invention, as described above,
The optical unit of the mechanical unit is
Towards a position where the disc can be played along the disk thickness direction
Engage with each other by movingFixing pin and this
Pinhole to be restrainedWith a simple configuration with only
Set the unit and tray in a predetermined positional relationship with each other.
Position can be fixed in the
To be small and thin, and to simplify the assembly work
Can be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the appearance of an optical disk reproducing apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view showing the internal structure of the optical disk reproducing apparatus shown in FIG. FIG. 3 is a perspective view showing a state in which the tray is pulled out in FIG. 2; FIG. 4 is an exploded view of the optical disk reproducing device in FIG. 1; FIG. 5 is a perspective view showing a coupling relationship between the slider 1, the tray and the PU unit; 6 is a perspective view of the optical disc reproducing apparatus shown in FIG. 2 as viewed from the front side. FIG. 7 is a plan view and a cross-sectional view showing the structure of a clutch gear. FIG. 8 is a view for explaining the operation of the clutch gear of FIG. 9 is a plan view and a sectional view showing a disk clamp mechanism. FIG. 10 is an exploded view showing a configuration of a disk drive mechanism. FIG. 11 is a plan view showing a configuration of a turntable and a centering in the disk drive mechanism of FIG. FIG. 12 is a view for explaining a method of mounting a centering on a turntable. FIG. 13 is a side view showing an operation at the time of tray loading. FIG. 14 is a plan view showing a state at the time of tray ejection. FIG. 16 is a plan view showing a state in which the tray is being drawn in. FIG. 16 is a plan view showing a state in which the tray is drawn in. FIG. 17 is a plan view showing a state in which loading / disc clamping is completed. FIG. 19 is a plan view showing the configuration and operation of a conventional tray lock mechanism. FIG. 20 is a plan view showing the configuration and operation of a conventional tray lock mechanism. Top view showing the configuration of the tray lock mechanism and the locked state [Description of References] 1 ... cabinet, 10 ... tray, 13 ... slider engagement protrusion, 14 ... Rack gear, 15 ... Pin hole, 20 ... Frame, 23 ... Loading motor, 25 ... Clamper mounting part, 26 ... Claw part, 28 ... Turn table, 28a,
28b, 28c ... insertion recesses, 28d, 28e, 28f ...
Fitting portion, S1, S2, S3: stopper, 29: spring, 30: pickup (PU) unit, 31
... optical pickup, 32 ... fixed pins, 34 ... disk motors, 36a, 36b, 36c, 36d ... guide pins,
37: Centering, 37a, 37b, 37c: Projection plate, 40, 41: Slider, 42: Guide groove, 43, 4
4, 45, 46: guide hole, 49: rack gear, 50:
Connecting member, 60: clamper, 64: clutch gear, a ...
1st gear, a1 ... engagement projection, b ... 2nd gear, b1 ...
Engaging portion, 80: rotating lever.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G11B 17/04 313 G11B 17/035 G11B 25/04 101

Claims (1)

(57) [Claim 1] In a disk reproducing apparatus in which a tray on which an optical disk is mounted can be freely inserted into and removed from a housing of the apparatus main body along a surface direction of the optical disk mounted on the tray. A mechanical unit having at least a disk drive mechanism and an optical pickup for rotating and driving the optical disk; and an optical disk mounted on the tray between a first position at which the mechanical unit can play the disk and another second position. A mechanical unit moving mechanism for supporting the tray movably along a thickness direction of the tray and for moving the mechanical unit from the second position to the first position with the insertion of the tray into the housing; , On the opposing surfaces of the mechanical unit and the tray
It is provided so as to be freely inserted and removed in the thickness direction of the disk, and engages with each other when the mechanical unit is at the first position,
A disk reproducing apparatus comprising: a fixing pin for establishing a predetermined positional relationship between the mechanical unit and the tray; and a pinhole for restraining the fixing pin .