JP3533829B2 - Optical disk drive - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device, and more particularly to an optical disk device such as a CD-ROM device for performing recording and reproduction using a disk, which uses a disk tray having a recess for accommodating the disk. The present invention relates to an optical disc device that loads a disc from the outside into the device.

[0002]

2. Description of the Related Art CD-R equipped with a conventional disc tray
An optical disk device such as an OM device is premised on that the device is used horizontally. In this horizontally placed device, by placing the disc by matching the outer diameter of the disc with the recess for storing the disc on the surface of the disc tray, the recess serves as a guide, and the disc does not drop from the disc tray. To
I was able to record and play back.

First, such a conventional optical disk device will be described with reference to the drawings. FIG. 11 is a partial plan view of a conventional optical disk device, and FIG. 12 is a sectional view taken along the line BB of FIG. 13 and 14 respectively show
FIG. 12 is a cross-sectional view taken along the line AA of FIG. 11 in a state where the disc tray is pulled out and a state where the disc tray is pulled into the optical disc device main body. In the figure, 1 is a CD-RO
A device body such as M, 2 is a disc tray, 2a is a disc housing recess, 3 is a disc, 21 is a base chassis of the device casing, 31 is a main chassis on which a motor for rotating the disc is mounted, and 33 is a disc rotation motor. It's a turntable.

The operation of such a conventional optical disk device will be described. First, the disc tray 2 is pulled out from the optical disc device main body 1 in the horizontally placed state. Next, the disc 3 is placed in alignment with the disc storage recess 2a of the disc tray 2. Subsequently, the disc tray 2 is pulled into the apparatus main body 1. At this time, since the disc storage recess 2a serves as a guide, the disc 3 can be prevented from falling from the disc tray 2. After pulling the disc tray 2 and the disc 3 into the main body 1,
The main chassis 31 rises, the disc 3 is lifted from the disc tray 2 by the disc rotation motor turntable 33, and the disc loading operation is completed.

By the way, in order to reduce the installation place on the desk, there is a demand for vertically installing an internal personal computer such as a CD-ROM device or an external CD-ROM device. However, in this conventional optical disk device,
If the disc 3 is placed in the disc storage recess 2a of the disc tray 2 with the device main body 1 standing upright, the disc 3 will fall out of the disc storage recess 2a and fall. Therefore, load the disc into the device main body. There was a problem that could not be done.

Next, another conventional optical disk device which solves such a problem and enables the disk loading even if the optical disk device is installed vertically will be described. FIG. 15 is a partial plan view of another conventional optical disk device, FIG. 16 is a partially enlarged view of the vicinity of the arm 11 of FIG. 15, and FIGS. 17 and 18 are taken along the line BB of FIG. The cross-sectional views, FIG. 19 and FIG. 20 are single component drawings. In the figure, 1 is the apparatus main body, 2 is a disc tray, 2a is a disc housing recess, and 3 is a disc. Another conventional optical disk device shown in FIGS. 15 to 20 is mainly composed of a disk tray 2, a disk pressing arm 11, and an arm fixing pin 12.

In this other conventional optical disk device, elliptical disk pressing arms 11 for pressing the disk 3 are provided at four locations on the outer peripheral portion of the disk housing recess 2a.
When the optical disk device is placed vertically, the disk holding arm 11 is manually rotated and projected to make the disk tray 2
Enclose the disk 3 between and. Accordingly, even when the optical disc device 1 is installed vertically, the disc 3 can be loaded into the device body 1 without dropping the disc 3 from the disc tray 2.

[0008]

However, in the conventional optical disk device having the disk pressing arm 11, the following new problems occur. As shown in FIG. 18, when recording / reproducing the disc 3,
Is lifted from the disc storage recess 2a by a turntable (not shown), and is rotationally driven in this state. At the time of recording / reproducing after the disk 3 is installed in the device 1, between the disk 3 and the disk tray 2, between the disk 3 and the disk pressing arm 11, so that the rotating disk 3 is not corroded by members. You have to take each gap. For this reason, it is necessary to separate and attach the disc pressing arm 11 to the disc tray 2 in advance so that these clearances can occur. Therefore, there arises a problem that the size of the disc tray portion from the disc tray 2 to the disc pressing arm 11 becomes thick. As a result, the front panel 4 of the CD-ROM device or the like has a large hole through which the disc tray portion is inserted, which causes a problem in that the design is restricted.

Therefore, it is an object of the present invention to increase the thickness of the disc tray portion and prevent the disc from dropping from the disc tray even when the disc main body is installed in a vertical position. An object is to provide an optical disk device capable of recording / reproducing a disk.

[0010]

SUMMARY OF THE INVENTION An optical disk device of the present invention is a disk having an apparatus body and a disk tray housed in the apparatus body and pulled out from the apparatus body, the disk tray having a recess for housing a rotationally driven disk. A tray and a turntable and an actuator for rotating the disc.
It has a convex part for pushing up the boom,
Therefore, the disc is chucked on the turntable.
From the recess of the disc tray
A main chassis that rises to a distant position, and a plurality of arms that are provided on the outer periphery of the recess of the disc tray and project above the recess and move up and down in a direction substantially perpendicular to the disc tray; But
When it is pulled out from the device body,
First position to prevent the disc from coming off the tray
, The disc tray is stored in the main unit of the device.
If the main chassis is
As a power, a convex for pushing up the arm of the main chassis
By being pushed up by the
And an arm positioned at a second position that allows movement .

[0011]

The above and other objects of the present invention,
BEST MODE FOR CARRYING OUT THE INVENTION In order to make the configuration and effects clearer, embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a plan view of an optical disk device according to an embodiment of the present invention with a disk tray 2 pulled out, and FIG. 2 is a partially enlarged view of the vicinity of the disk holding arm 11 of FIG. 3 and 4 are cross-sectional views taken along the line AA of FIG. 1 in a state where the disc tray 2 is pulled out and a state where the disc tray 2 is pulled in, respectively. 5 and 6 are cross-sectional views taken along the line BB of FIG. 7 and 8 are single component drawings of the disc pressing arm 11 and the vertical slide base 13 of this embodiment, respectively.

First, with reference to FIG. 1 which is a plan view, an outline of the overall configuration of the optical disk device of the present embodiment will be described. The optical disk device of the present embodiment is
Device body 1, disc tray 2, disc storage recess 2
a, a front panel 4, a disc pressing arm 11, a base chassis 21, a base chassis convex portion 22, a main chassis 31, a main chassis convex portion 32, and a disc rotation motor turntable 33. The disc tray 2 is provided with disc storage recesses 2a, and elliptical disc holding arms 11 for holding the discs 3 are provided at four locations on the disc tray 2 on the outer periphery of the disc storage recesses 2a.
Is provided. The disc tray 2 is drawn into and pulled out from the main body 1 of the apparatus through the hole opened in the front panel 4. A base chassis 21 is provided inside the main body 1 of the apparatus. The base-chassis 21 is provided with arm-lifting protrusions 22 integrally formed at two positions corresponding to the position of the disc pressing arm 11. ing. The function of the convex portion 22 for pushing up the arm will be described later. Further, the main chassis 3 is provided inside the apparatus body 1.
1 is provided. A disk rotation motor turntable 33 for rotating the disk 3 is provided on the main chassis 31, and further arm lifting projections 32 are provided at two positions corresponding to the position of the disk pressing arm 11. The function of the arm pushing-up convex portion 22 will also be described later.

Next, with reference to FIG. 2, a planar structure in the vicinity of the disc pressing arm 11 which is one of the features of the optical disc apparatus of the present embodiment will be described. Disc holding arms 11 arranged at four outer peripheral portions of the disc housing recess 2a of the disc tray 2 have an oval shape, and are attached in a freely rotatable state around the arm fixing pins 12, respectively. Each of the arms 11 is directed toward the center of the disc 3 as shown by the solid line in FIG.
The protruding state 11a protruding upward, the first storage state 11b as shown by the chain double-dashed line in FIG. 2, and the first storage state 11b rotated by 180 degrees from the first storage state 11b as shown by the double-dashed line in FIG. Positioning is performed in the three states of the two stored states 11c. In the housed states 11b and 11c, the arm 11 moves the disk 3 into the disk housing recess 2a.
It is located in the direction that does not hinder the mounting of the.

Next, with reference to FIGS. 5 and 6, a cross-sectional structure near the disc holding arm 11 of the present embodiment will be described. FIG. 5 is a cross-sectional view of the vicinity of the disc holding arm 11 when the disc tray 2 is pulled out from the optical disc device body 1, and FIG. 6 is a disc when the disc tray 2 is pulled into the optical disc device body 1. FIG. 6 is a cross-sectional view of the vicinity of a holding arm 11. Here, a cross-sectional view of the vicinity of the disc pressing arm 11 located on the front side of the optical disc device is shown as an example. The disc pressing arm 11 has an opening, and is attached by an arm fixing pin 12 in a freely rotatable state on the vertically sliding base 13 about this opening. Here, the vertical sliding base 13 is provided with one convex portion 13a on its surface, and the vertical sliding base 13 is provided by a plurality of concave portions 11d provided on the surface of the disc pressing arm 11 on the disc tray 2 side. On the other hand, the disc pressing arm 11 is positioned in the rotational direction. The convex portion 13a of the vertical slide base 13 is arranged, for example, as shown in the plan view of FIG. The recesses 11d of the disc pressing arm 11 are arranged at, for example, three places, as shown in the plan view of FIG. Disc holding arm 1
When an elastic material is selected for 1, the disc pressing arm 11 itself is deformed when the disc pressing arm 11 is rotated by hand, so that the vertical slide base 13
The concave portion 11d of the disc pressing arm 11 can get over the convex portion 13a.

Further, the vertical slide base 13 can freely slide substantially vertically with respect to the disc tray 2. Normally, a return spring 14 inserted between the disc tray 2 and the base 13
As shown in FIG. 5, it is pressed against the disc tray 2. That is, in this state, the disc pressing arm 11 is located at the first position. Disc tray 2
6 is housed in the optical disk device, the vertical slide base 13 is pushed up by the arm pushing-up convex portion 22 integrally formed on the base chassis 21, as shown in FIG. That is, the return spring 14 contracts to raise the disc pressing arm 11 on the vertical slide base 13. That is, in this state, the disc pressing arm 11
Is separated from the disc tray 2 and is located at a second position above the first position. Here, the disc holding arm 1
6 can be lifted by a distance sufficient to rotationally drive the disk 3 in FIG. 6 even when the disk 1 is chucked by the disk rotation motor turntable (not shown in FIG. 6) and lifted from the disk tray 2.

Next, the overall operation of the optical disk device of the present embodiment will be described in detail with reference to FIGS. When the disc tray 2 is pulled in, after the disc tray 2 has passed through the front panel 4 of the apparatus, the disc pressing arm 11 and the arm fixing pin 1 at the two front sides in FIG.
2. The vertically sliding base 13 is driven by the operation of pulling in the disc tray 2 as a driving force, as shown in FIG. 4, by the two arm pushing-up convex portions 22 integrally formed on the base chassis 21 inside the apparatus. Each is pushed up. Further, after the disk tray 2 is completely drawn in, the disk 3 is moved from the disk tray 2 to the disk rotation motor turntable 33, so that the main chassis 31 is lifted up. 11 is pushed up by the two arm pushing-up convex portions 32 attached to the rising main chassis 31.

When the disk 3 is installed inside the apparatus, it floats above the disk tray 2. At this time, as described above, since the disk pressing arms 11 are pushed up, there is a gap and interference with the disk 3. The disk 3 can be freely rotated by the disk rotation motor turntable 33.

On the contrary, when the disc 3 is taken out from the inside of the apparatus, the disc pressing arm 11 is released from being pushed up to the disc tray 2 and is pressed against the disc tray 2 by the return spring 14, so that the disc tray portion is again pressed. Is thinned, passes through a hole opened in the front panel 4, and is taken out to the outside.

Next, the case where the optical disk device of this embodiment is placed horizontally and the case where it is placed vertically will be described. When the apparatus main body 1 is placed horizontally, the disk holding arm 11 is manually rotated and stored so as not to be in the disk storage recess 2a like 11b and 11c in FIG. As a result, the disk loading can be completed by the same operation as that of the conventional optical disk device without hindering the operation of placing the disk 3 in the disk storage recess 2a.

When the apparatus main body 1 is placed vertically, three disc pressing arms 11 out of the four disc pressing arms 11 except the one on the upper front side are projected into the disc storing recess 2a of the disc tray 2. Rotate by hand like this. The disc 3 is inserted into the disc storage recess 2a of the disc tray 2 from the position of the disc holding arm 11 on the front upper side where the disc holding arm is not projected. By surrounding the disc 3 with the disc storage recess 2a of the disc tray 2 and the disc holding arms 11 at three locations, the disc 3 is prevented from falling from the disc storage recess 2a.

For example, when the apparatus is vertically placed on the lower left side as shown in FIG. 9, one arm 11-1 on the front upper side is housed by rotation, and three disc holding arms 11- are removed except the arm 11-1.
2, 11-3 and 11-4 are manually rotated in advance so as to project into the disc storage recess 2a of the disc tray 2. By doing this, the disc storage recess 2a of the disc tray 2 and the disc pressing arms 11-2 at three locations are formed.
By surrounding the disk 3 with 11 to 11-4, it is possible to complete the disk loading while preventing the disk 3 from dropping from the disk housing recess 2a.

When the apparatus is vertically placed on the lower right side as shown in FIG. 10, one arm 11-2 on the front upper side is housed by rotation, and the three disc pressing arms 11-1 and 1-1 are excluded.
The disks 1-3 and 11-4 are manually rotated in advance so as to project into the disk storage recess 2a of the disk tray 2. By doing so, the disc storage recess 2a of the disc tray 2 and the disc pressing arms 11-1 and 1 at three locations are provided.
By surrounding the disk 3 with 1-3 and 11-4,
The disc loading can be completed while preventing the disc 3 from dropping from the disc housing recess 2a.

As described above, according to the present embodiment, the disc tray 2 on the outer peripheral portion of the disc housing recess 2a is provided.
4 are provided with vertically sliding bases 13 that can move up and down substantially in the vertical direction with respect to the disc tray 2. Further, on the bases 13, there are elliptical disc holding arms 11 for holding the discs 3. Is provided. When the disc tray 3 is pulled out from the apparatus main body 1, the disc holding arm 11 is in contact with the disc tray 2, and the dimension of the disc tray portion becomes thin, so that the disc 3 becomes smaller.
Of the disc tray 2 is prevented. By reducing the size of the disc tray portion, the size of the hole opened in the front panel 4 and through which the disc tray 2 passes can be reduced, and the entire device can be reduced in thickness. When the disc tray 3 is pulled into the apparatus body 2,
In order not to hinder the rotational driving of the disk 3, the disk pressing arm 11 is vertically lifted from the disk tray 2 so that the disk 3 can be rotationally driven with sufficient clearance between the disk 3 and its surrounding members. become. Therefore, according to the present embodiment, the disc 3 from the disc tray 2 to the disc pressing arm 11 can be thinned while the disc 3 can be loaded not only horizontally but also in a state where the apparatus main body is vertically erected.

[0024]

EXAMPLES For example, when the vertical movement distance of the disc pressing arm 11 of the above embodiment is 2.2 mm,
The thickness of the conventional disc tray portion shown in FIG. 15 is 1
The thickness of the disc tray portion in the above-described embodiment can be set to 10.3 mm, while the dimension of the disc tray portion is 2.2 m as compared with the conventional one.
I was able to make it thinner. As a result, the size of the hole opened in the front panel 4 through which the disc tray portion comes and goes can be reduced, and as a result, the optical disc apparatus itself can be made thinner.

Although the preferred embodiments and examples of the present invention have been described above, the present invention is not limited to these and various modifications can be made. For example, in the above-described embodiment, the case where the disc pressing arm, the arm fixing pin, and the vertical slide base are provided at four locations on the disc tray has been described, but the locations can be increased or decreased within the range in which the disc can be prevented from falling. In that case, according to the increase or decrease,
It suffices to increase or decrease the number of the arm pushing-up convex portions provided correspondingly in the apparatus main body.

[0026]

As described above, by adopting the optical disk apparatus of the present invention, there is an advantage that the disk can be loaded not only horizontally but also with the apparatus main body standing vertically. Further, by making the disc holding arm part movable up and down, there is an advantage that the thickness of the disc tray part can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of an optical disc device according to an embodiment of the present invention.

FIG. 2 is a disc holding arm 1 of the optical disc device of FIG.
It is a partially expanded view of the vicinity of 1.

3 is a cross-sectional view of the optical disc device of FIG. 1 taken along the line AA.

4 is a cross-sectional view of the optical disk device of FIG. 1 taken along the line AA.

5 is a cross-sectional view of the optical disc device of FIG. 1 taken along the line BB.

6 is a cross-sectional view of the optical disc device of FIG. 1 taken along the line BB.

FIG. 7 is a component single-part view of the disc pressing arm 11 according to the embodiment.

FIG. 8 is a component single-part view of the vertical slide base 13 according to the embodiment.

FIG. 9 is a perspective view for explaining an example of installation of a disc pressing arm when the apparatus is vertically placed on the lower left side of the embodiment.

FIG. 10 is a perspective view for explaining an example of installation of a disc pressing arm when the apparatus is vertically placed on the lower right side of the embodiment.

FIG. 11 is a plan view showing a conventional optical disc device.

12 is a cross-sectional view of the optical disc device of FIG. 11 taken along the line BB.

FIG. 13 is a disc tray 3 of the optical disc device of FIG.
It is sectional drawing along the AA line in the state which pulled out.

14 is a disc tray 3 of the optical disc device of FIG.
It is sectional drawing which followed the AA line in the state which accommodated.

FIG. 15 is a plan view of another conventional optical disk device.

16 is a partially enlarged view of the vicinity of the disc holding arm 11 of the optical disc device shown in FIG.

17 is a cross-sectional view taken along the line BB of the optical disk device of FIG. 15 with the disk 3 mounted in the recess 2a of the disk tray 2.

FIG. 18: Disc 3 by disc loading FIG.
6 is a cross-sectional view of the optical disc device of FIG.

FIG. 19 is a plan view of the same disc holding arm.

FIG. 20 is a partially enlarged view of the same disc tray.

[Explanation of symbols]

1 device body 2 disc tray 2a Disc storage recess 3 discs 4 Front panel 11 Disc holding arm 11a Disc holding arm protruding state 11b Disc holding arm in first retracted state 11c Disk holding arm in second retracted state 11d Disc holding arm recess 12 Arm fixing pin 13 Vertical slide base 13a Vertical convex base for sliding 14 Return spring 21 base chassis 22 Base chassis protrusion 31 main chassis 32 Main chassis protrusion 33 Disk rotation motor turntable

Claims (13)

(57) [Claims] 1. An optical disk apparatus for loading a disk into the apparatus from outside the apparatus using a disk tray having a recess for accommodating a rotationally driven disk, wherein a turn for rotating the disk is provided inside the apparatus.
Inside the device, which has a table and a protrusion for pushing up the arm
Part of the disk causes the disc to turn into the turntable.
Of the disc tray
The main chassis that rises to a position away from the recess
Comprising, a said arm is disposed on the outer periphery of the recess of the disc tray to prevent the fall of the disk from the disk tray holding said disk, said disk tray
Is stored inside the device, the main
Using the upward movement of the chassis as the driving force,
To the position where it does not hinder the rolling drive,
Make sure that the above-mentioned
An optical disk device comprising an arm movable in a direction perpendicular to a disc tray surface . 2. A recess for accommodating a rotationally driven disk.
From outside the device to inside the device using a disc tray
In the optical disc device that loads the disc onto the disc
And a convex portion for pushing up the arm is fixed inside the device.
A base chassis, which is disposed on the outer periphery of the recess of the disc tray,
Hold the disc, and the disc from the disc tray.
An arm for preventing the disc tray from falling
Is stored inside the device, the
Using the drawing operation of the tray as the driving force,
The base shear to a position where it does not interfere with the rotational drive of
Make sure that the convex part for pushing up the arm
The arm that can move vertically to the disc tray surface
An optical disk device comprising: 3. A protrusion for pushing up an arm is provided inside the device.
Is provided on the outer circumference of the recess of the disc tray.
Hold the disc, and the disc from the disc tray.
An arm for preventing the disc tray from falling
Is stored inside the device, the
Using the drawing operation of the tray as the driving force,
The base shear to a position where it does not interfere with the rotational drive of
Make sure that the convex part for pushing up the arm
The arm that can move vertically to the disc tray surface
The optical disk device according to claim 1, further comprising: 4. An upper and lower slide base attached to the disc tray and moving up and down in a direction substantially vertical to the disc tray, and the arm is fixed to the upper and lower slide bases through an opening provided in the arm. The optical disk device according to claim 1, 2 or 3, further comprising an arm fixing pin. 5. The arm has a plurality of concave portions on the surface thereof, the vertical slide base has a convex portion, and one concave portion of the arm and the convex portion of the vertical slide base are fitted to each other, and The optical disk device according to claim 4, wherein the arm has a fixed orientation. 6. The optical disk apparatus according to claim 1, claim 2, claim 3, claim 4, or claim 5, wherein the arm is made of an elastic material. 7. A device main body and a device body housed in the device main body and pulled out from the device main body.
This is a disc tray that stores the discs that are driven to rotate.
A disc tray having a recess for accommodating, a turntable and an arm for rotationally driving the disc
It has a protrusion for pushing up, and
The disk is chucked on the turntable
Both remote from the recess of the disc tray when it is
The main chassis that rises to the open position, and multiple
Stick out above the recess and
Qualitatively, it is an arm that vertically moves up and down, and
When the tray is pulled out from the main unit
Prevents the disc from coming off the disc tray
Is located in the first position, and the disc tray is the device book.
When stored in the body, above the main chassis
Using the ascending motion as the driving force, the arm pushing of the main chassis is performed.
By pushing up with the raised protrusions,
The arm located in the second position that allows the rotational drive of the
An optical disk device comprising: 8. An apparatus main body, a disk tray which is housed in the apparatus main body and pulled out from the apparatus main body, the disk tray having a concave portion for accommodating a rotationally driven disk, and an arm pushing-up convex portion are fixed. a base chassis has, in an arm up and down in a direction substantially perpendicular to the disk tray protrudes into the recess upwardly plurality provided on an outer periphery of the recess of the disc tray, the disc
When the tray is pulled out from the main unit
Prevents the disc from coming off the disc tray
Is located in the first position, and the disc tray is the device book.
When stored in your body, pull the disc tray.
Using the driving operation as the driving force,
The protrusions for lifting the
The arm located at the second position which allows the rotational drive of the disk.
An optical disk device comprising: 9. A base to which a convex portion for pushing up an arm is fixed.
A plurality of chassis are provided around the recess of the disc tray.
Stick out above the recess and
Qualitatively, it is an arm that vertically moves up and down, and
When the tray is pulled out from the main unit
Prevents the disc from coming off the disc tray
Is located in the first position, and the disc tray is the device book.
When stored in your body, pull the disc tray.
Using the driving operation as the driving force,
The protrusions for lifting the
The arm located at the second position which allows the rotational drive of the disk.
The optical disc device according to claim 7, further comprising: 10. The arm has an opening, and the opening is in the middle.
The optical disk device according to claim 7, 8 or 9, wherein the optical disk device rotates on its own. 11. The disk tray is attached to the disk tray,
Up and down substantially perpendicular to the disc tray
Through the lower slide base and the opening provided in the arm.
To fix the arm to the vertical slide base.
A cam fixing pin is further provided.
The optical disk device according to claim 7, claim 8, claim 9, or claim 10. 12. The arm has a plurality of recesses on its surface.
The upper and lower slide bases have a convex portion, and the arm
One concave part of the above and the convex part of the vertical slide base are fitted
The arm has a fixed orientation.
Optical disk apparatus according to claim 11, wherein that. 13. The arm is made of a resilient material
Claim 7, claim 8, claim 9, characterized in that
The optical disk device according to claim 10, 11, or 12.