JP2746247B2 - Disc loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk loading device for an optical disk device that completely pulls out an optical disk from a cartridge.

[0002]

2. Description of the Related Art Conventionally, in the case of an apparatus having optical heads on both sides of an optical disk, a cartridge case or a disk tray cannot be passed between upper and lower optical heads.
During disc loading, a method is adopted in which the upper optical head is released upward, and after the disc is loaded, the optical head is returned to the home position again (JP-A-5-74033, JP-A-5-2810, and JP-A-5-2810). -6606 publication).

[0003]

However, when an optical head is provided up and down and the optical head cannot be moved up and down, the optical disk cannot be loaded.
Even in such a case, a disk loading device capable of loading an optical disk has been conventionally desired.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a disk loading device capable of loading an optical disk with a simple structure in an optical disk device in which an optical head cannot be moved up and down.

[0005]

In order to achieve the above object, a disk loading apparatus according to the present invention comprises a cartridge guide for guiding the insertion of a cartridge, and a sub-tray for guiding the optical disk from the cartridge after the cartridge guide is pulled in. The configuration includes a disk transport mechanism for moving the disk on the turntable, and a disk chucking mechanism for raising the spindle motor and chucking the optical disk on the turntable with a spindle magnet.

[0006] Then, specifically, the disk transfer mechanism, a movable rack moves in a retracting direction of the cartridge, and a slider for moving the cartridge guide by the movement of the rack, and guide the optical disc from the cartridge by movement of the rack And a guide plate for guiding the movement of the slider and the carriage arm.

More preferably, the rack has a first cam groove and a second cam groove, and the guide plate has a first cam groove.
The slider has a slide groove and a second slide groove, the slider has a first cam groove and a slide pin that enters the first slide groove, and the carriage arm has a slide pin that enters the second cam groove and the second slide groove. And the slide pin is moved by the cam groove while being guided by the slide groove.

According to the disk loading apparatus of the present invention having the above structure, the cartridge guide guides the insertion of the cartridge, and the disk transport mechanism pulls in the cartridge, then pulls out the sub-tray from the cartridge together with the optical disk and places it on the turntable. Then, the disk chucking mechanism raises the spindle motor and chucks the optical disk on the turntable by the spindle magnet.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk loading device according to the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of a disc loading device.
FIG. 2 is a plan view of a disk transport mechanism used in the disk loading device. FIG. 3 is a side view of the disk transport mechanism.
5 is a partial side view of a cartridge guide, FIG. 5 is a configuration diagram of a drive mechanism of a disk transport mechanism, FIG. 6 is a side view of a disk chucking mechanism, FIG. 7 is a configuration diagram of a drive mechanism of a disk chucking mechanism, and FIG. FIG. 9 is a perspective view of an optical disk drive unit and a recording / reproducing mechanism of a mechanical deck using the disk loading device of the present invention, FIG. 9 is a perspective view of a cartridge with a sub-tray pulled out, FIG. FIG. 12 is a plan view showing the internal structure of the cartridge, FIG. 12 is a partial plan view showing the lock mechanism of the cartridge, FIG. 13 is also a partial plan view showing the lock mechanism, FIG.
FIGS. 15, 16, 17, 18, and 19 are explanatory views showing the operation of the slider of the disk transport mechanism, FIGS.
FIGS. 1, 22, 23 and 24 are explanatory views showing the operation of the carriage arm of the disk transport mechanism, FIGS.
FIG. 27, FIG. 28 and FIG. 29 are explanatory views showing the operation of the rack, slider and carriage arm of the disk transport mechanism.

First, an optical disk cartridge used in the disk loading device of the present invention will be described with reference to FIGS. As shown in FIG. 9, the cartridge 5 includes a case 12, a sub-tray 13, and an optical disk 10, and the sub-tray 13 is mounted on four disk supports 20 as shown in FIG.
0 is placed in the case 12.

As shown in FIGS. 12, 13 and 14, the sub-tray 13 pushes the left and right lock arms 14 into the lock grooves 15 in the case 12 to insert the lock release arms 49 from the lock release holes 16. The lock arm 14 cannot be pulled out in a normal state unless the lock arm 14 is released.

A drawer hole 17 is provided at the left and right ends of the sub-tray 13, and a carriage access window 18 is provided on the upper surface of the case 12 around the drawer hole 17. As shown in FIG. 10, two lock holes 19 are formed at both ends on the back side of the case 12, so that the cartridge 5 can be fixed in the apparatus by inserting a pin from below. I have.

As shown in FIG. 1, the disc loading device of the present invention comprises a cartridge guide 4 for guiding a cartridge 5 inserted through a cartridge insertion slot 6, and an optical disc 10 shown in FIG. The disk transport mechanism 1 that pulls out the guided sub-tray 13 and moves it onto the turntable, and the disk chucking mechanism (not shown) that raises the spindle motor and chucks the optical disk on the turntable with a spindle magnet. Have.

Reference numeral 3 denotes a mechanical deck.
As shown in FIG. 8, a base plate 80 and a top base 81 are rotatably connected at a fulcrum 84. The base plate 80 is provided with an optical head 83 and a spindle motor 85. The top base 81 is also provided with an optical head 83. Have been.

Next, the disk transport mechanism 1 of the disk loading device will be described with reference to FIGS. 2, 3, 4 and 5. 2 and 3, reference numeral 50 denotes a guide plate, and a holder guide 40 for horizontally moving the cartridge guide 4 is fixed inside the guide plate 50. The guide plate 50 has a rack groove 202, a first slide groove 200, and a second slide groove 210. The left and right guide plates 50 are fixed by a rear bar 52 and an under bar 53.

Reference numeral 51 denotes a rack. The rack 51 is fixed to a loading belt 66 by a belt retainer 67, and the guide plate 5 is fixed by the loading belt 66.
It moves horizontally along the 0 rack groove 202. Further, a first cam groove 201 and a second cam groove 211 are formed in the rack 51.

Reference numeral 41 denotes a slider. The slider 41 is provided with a slide pin 42 fixed by caulking. The slide pin 42 is fitted into the first cam groove 201 of the rack 51 and the first slide groove 200 of the guide plate 50. The first cam groove 201 moves horizontally and vertically along the first slide groove 200 in accordance with the movement of the first cam groove 201.
A long hole is formed in the side surface of the slider 41 in the vertical direction. The shaft formed in the cartridge guide 4 enters the long hole, and the shaft of the cartridge guide 4 is pushed by the long hole as the slider 41 moves. It moves horizontally along the groove of the holder guide 40.

Reference numeral 74 denotes the sub-tray 13 and the optical disk 10
The left and right sides are connected by a carriage guard 75 which is located inside the guide plate 50 and has a smaller thickness than the sub-tray 13. On the outer surface of the carriage arm 74, two slide pins 71 for forward and backward movement are fixed by caulking. Further, it enters the drawer hole 17 of the sub-tray 13 and the sub-tray 1
Carriage pin 70 for pulling out 3 from case 12
Are caulked one by one on each side.

The slide pin 71 is provided with a guide roller 72 and a rack roller 73. The guide roller 72 enters the second slide groove 210 of the guide plate 50, and the rack roller 73 is connected to the second cam groove 2 of the rack 51.
11 while being pushed by the second cam groove 211.
By rolling the slide groove 210, the slide pin 7
1 moves horizontally and vertically according to the shape of the second slide groove 210.

As shown in FIG. 4, the cartridge guide 4 is provided with two slide shafts 31 which are caulked and fixed, and a slide plate 30 is provided so that a long groove enters the slide shaft 31 and moves in the horizontal direction. The slide plate 30 is urged by a spring 32 in the unloading direction. Reference numeral 34 denotes a cartridge loading sensor for detecting completion of insertion of the cartridge guide 4.

As shown in FIG. 5, a loading belt 66 for moving the rack 51 is provided with a pulley 64, a belt 63, a worm pulley 65, a worm wheel 57, a front pulley shaft 54, a front pulley 56, and a disk loading motor 62. It is driven via a rear pulley 58.

Next, the disk chucking mechanism 2 of the disk loading device will be described with reference to FIGS. In FIG. 6, a spindle motor 85 has a turntable 111 and a spindle shaft 12 at the top.
2 are provided. The spindle motor 85 is mounted on the spindle base 114, and the spindle base 1
An elevating plate 115 is provided at the lower part of the base 14 via a spring 116, and these are regulated in the horizontal direction by a guide shaft 113 pressed into the under base 112. Lifting plate 115
A lifting pin 120 is press-fitted into the side surface of the cam groove 2 formed in the under cam 118.
03. The undercam 118 is fixed by a cam guide 121, and 124 is an underguide 124 for guiding the undercam 118.

A cam slide arm 119 is connected to the cam guide 121. The cam slide arm 119 is
As shown in FIG. 7, the arm pin 123, the lifting arm 11
0, the cam groove 204, the cam gear 105, the worm wheel 104, the worm pulley 103, the belt 102, and the disc pulling motor 10 via the motor pulley 101.
Connected to 0. A sensor base 108 provided with a spindle up sensor 106 and a spindle down sensor 107 is provided on a side surface of the cam gear 105, and a shutter 109 is provided.

Next, the operation will be described. In FIG. 4, when the cartridge 5 is inserted horizontally into the cartridge insertion slot 6, the tip of the case 12 contacts the slide plate 30 of the cartridge guide 4. The slide plate 30 has two slide shafts 30 fixed by caulking to the cartridge guide 4.
Move horizontally on top. At this time, the slide plate 30 is
Is pushed in the direction to push out the cartridge 5, but when the cartridge 5 is pushed in as it is and the cartridge 5 reaches the cartridge loading completion position,
The cartridge 5 is stopped by the stopper 33, and the unlocking arm 49 is inserted into the unlocking hole 16 of the cartridge 5 as shown in FIGS. 12 and 13, and the sub tray 13 can be pulled out. Further, at this time, a part of the slide plate 30 blocks the slit portion of the cartridge loading sensor 34, which is a facing optical sensor, and detects that the cartridge 5 is completely inserted.

In the above-described cartridge loading completed state, the cartridge guide 4 is constantly pushed in the unloading direction by the spring 46. When the cartridge 5 is further pushed in, the shutter attached to the cartridge guide 4 is turned into the slit of the cartridge push-in sensor 35. The portion is blocked, and it is detected that the cartridge 5 is pushed. When the cartridge push-in sensor 35 detects the cartridge 5, the disk transport mechanism 1 starts operating.

That is, the disc transport mechanism 1 is in the disc unloading state before the cartridge loading is completed, and the shutter 76 blocks the slit portion of the disc unloading sensor 68 which is an opposing optical sensor. With the completion of
At the same time as the cartridge push sensor 35 is activated,
The disc loading motor 62 rotates in the loading direction.

As shown in FIG. 5, the rotation of the disk loading motor 62 is controlled by the pulley 64, the belt 63, the worm pulley 65, the worm wheel 57, the front pulley 56, and the loading belt 66 in this order.
1 and the other rack 51 has a front pulley shaft 54, a front pulley 56, a loading belt 66
And the rack 51 moves in the horizontal direction.
The loading belt 66 is pulled by a rear pulley 58 on the side opposite to the front pulley 56.

When the rack 51 moves in the horizontal direction, the first cam groove 201 moves accordingly, and when the unloading overrun portion 208 passes through the first vertical portion 205 of the first slide groove 200, FIGS. As shown in FIGS. 16 and 26, the slide pin 42 is pushed by the first slope 209 and starts descending from the unloading state shown in FIG.

When the first cam groove 201 further moves, as shown in FIG. 17, the slider 41 is always pulled downward with respect to the guide plate 50 by the spring 47. Groove 2
The slider 41 moves horizontally along the lower surface of 00 and the slider 41 starts to move horizontally. The movement of the slider 41 causes the cartridge guide 4 to start moving horizontally, and the cartridge guide 4 is drawn into the apparatus while holding the cartridge 5.

Further, when the first cam groove 201 moves,
As shown in FIG. 18, the slide pin 42 is
06, the slider 41 is fixed, and at the same time, the cartridge guide 4 and the cartridge 5 are fixed. When the rack 51 further moves, the first cam groove 201 separates from the slide pin 42 as shown in FIG. 19, but the slider 41 is pulled down by the spring 47 and is held as it is.

Thereafter, when the unloading overrun section 220 passes through the third vertical section 212, the unloading state shown in FIG. 20 changes from the unloading state shown in FIG.
The second inclined surface 216 of the second cam groove 211 pushes the slide pin 71 of the carriage arm 74, and the slide pin 71 starts to descend, and at the same time, as shown in FIGS. Of the carriage pin 70 is inserted into the drawer hole 17 of the sub-tray 13. In this state, the carriage guard 75 is at the same height as the sub-tray 13 and does not interfere with the upper and lower optical heads 83 even when the carriage guard 75 is moved horizontally.

Further, when the rack 51 moves, FIG.
As shown in FIG. 29, the slide pin 71 moves horizontally on the horizontal portion 214 while being pressed by the third slope 217, and at the same time,
The carriage arm 74 moves horizontally toward the spindle motor 85 of the mechanical deck 3 as shown in FIG. At this time,
The optical disk 10 is pulled out of the case 12 integrally with the sub-tray 13.

When the rack 51 is further moved and the slide pin 71 reaches the end point of the horizontal portion 214, FIG.
As shown in FIG.
At the position where the slide pin 71 has reached the loading overrun portion 218 as shown in FIG. 24, the shutter 77 closes the slit of the disk loading sensor 69, which is an opposing optical sensor, as shown in FIG. The loading sensor 69 operates to stop the loading motor 62.

From the above state, the spindle motor 85 is raised for disk chucking. FIG.
As shown in FIG. 1, the power of the disc chucking motor 100 is controlled by a motor pulley 101, a belt 102, a worm pulley 103, a worm wheel 104, and a cam gear 10.
5. The movement is converted into a horizontal movement via the cam groove 204, the lifting arm 110, the cam slide arm 119, and the cam slide arm pin 123, and the under cam 118 is moved horizontally via the cam guide 121.

As a result, the cam groove 203 is
An upward force is applied to the elevating pin 120 press-fitted on the side surface of the fifth member 5 to raise the elevating plate 115. The elevating plate 115 and the spindle base 114 are horizontally regulated by a guide shaft 113 press-fitted into an under base 112 fixed to the base plate 80. When the elevating plate 115 is raised, the spindle base 114 is And the spindle base 114 is raised in a state where the spindle base 114 is restricted in the horizontal direction. The upper surface of the spindle base 114 contacts the lower surface of the under base 112 during the ascent,
Subsequent rise of the lift plate 115 is absorbed by the spring 116 flexing. The flexure of the spring 116 serves as a force for fixing the spindle motor 85.

Thus, the spindle motor 85 rises,
When the ascending is completed, the spindle-up sensor 10, which is an opposing optical sensor attached to the sensor base 108,
When the shutter 109 attached to the cam gear 105 shuts off the slit portion 6, the spindle up sensor 106 is operated and the disc chucking motor 100 is stopped.

The disk hub 11 of the optical disk 10
Is chucked by the spindle magnet 86,
While being fixed on the turntable 111, it slightly floats up from the disc tray 82. The position of the disk 10 at this time is such that the disk hub 11 is
It is determined by entering. Thus, the disc loading is completed. It should be noted that the disc unloading of the optical disc 10 for which recording / reproduction has been completed may be performed in a manner reverse to the above-described operation.

[0038]

As described above, according to the disk loading mechanism of the present invention, even if the optical disk apparatus has fixed upper and lower optical heads through which a cartridge case or a disk tray cannot pass, the upper and lower optical heads can be moved between the upper and lower optical heads. Disk loading can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of an embodiment of a disc loading apparatus according to the present invention.

FIG. 2 is a plan view of a disk transport mechanism used in the disk loading device of the present invention.

FIG. 3 shows a side view of the disk transport mechanism of the present invention.

FIG. 4 is a partial side view of a cartridge guide and the like of the present invention.

FIG. 5 is a configuration diagram of a drive mechanism of the disk transport mechanism of the present invention.

FIG. 6 shows a side view of the disk chucking mechanism of the present invention.

FIG. 7 shows a configuration diagram of a drive mechanism of the disk chucking mechanism of the present invention.

FIG. 8 is a perspective view of an optical disk drive unit and a recording / reproducing mechanism of a mechanical deck using the disk loading device of the present invention.

FIG. 9 is a perspective view of the cartridge of the present invention with the sub-tray pulled out.

FIG. 10 shows a perspective view of the back surface of the cartridge of the present invention.

FIG. 11 shows a plan view of the internal structure of the cartridge of the present invention.

FIG. 12 is a partial plan view of a lock mechanism of the cartridge of the present invention.

FIG. 13 is a partial plan view of a lock mechanism of the cartridge of the present invention.

FIG. 14 is a partial plan view of a lock mechanism of the cartridge of the present invention.

FIG. 15 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 16 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 17 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 18 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 19 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 20 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 21 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 22 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 23 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 24 is an explanatory diagram of an operation of a slide pin portion of the disk transport mechanism of the present invention.

FIG. 25 is a diagram illustrating the operation of the rack, slider, and carriage arm of the disk transport mechanism of the present invention.

FIG. 26 is a diagram illustrating the operation of the rack, slider, and carriage arm of the disk transport mechanism of the present invention.

FIG. 27 is a diagram illustrating the operation of the rack, slider, and carriage arm of the disk transport mechanism of the present invention.

FIG. 28 is a diagram illustrating the operation of the rack, slider, and carriage arm of the disk transport mechanism of the present invention.

FIG. 29 is an explanatory diagram of the operation of the rack, slider, and carriage arm of the disk transport mechanism of the present invention.

[Explanation of symbols]

 Reference Signs List 1 disc transport mechanism 2 disc chucking mechanism 4 cartridge guide 5 cartridge 10 optical disc 13 sub tray 41 slider 42 slide pin 50 guide plate 51 rack 71 slide pin 74 carriage arm 83 optical head 85 spindle motor 86 spindle magnet 111 turntable 200 first slide Groove 201 First cam groove 202 Rack groove 210 Second slide groove 211 Second cam groove

Claims (2)

(57) [Claims] 1. A cartridge guide for guiding insertion of a cartridge, a disk transport mechanism for pulling out a sub-tray for guiding an optical disk from a cartridge after the cartridge guide is pulled in and moving the turntable on a turntable, What is claimed is: 1. A disk loading device comprising: a disk chucking mechanism for chucking an upper optical disk by a spindle magnet, wherein the disk transport mechanism moves a rack movable in a cartridge retraction direction and a cartridge guide by moving the rack. A slider, a carriage arm that pulls out a sub-tray that guides the optical disk from the cartridge by moving the rack, and moves the sub-tray onto a turntable, and the slider and the carriage arm Disk loading apparatus characterized by having a guide plate for guiding the movement. 2. The rack has a first cam groove and a second cam groove, the guide plate has a first slide groove and a second slide groove, and the slider has a first cam groove and a first slide groove.
2. The slide arm having a slide pin which enters a slide groove, wherein the carriage arm has a second cam groove and a slide pin which enters the second slide groove, and the slide pin is moved by the cam groove while being guided by the slide groove. Disk loading device.