JP3525454B2 - Disk unit - 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 device suitable for application to, for example, a CD player, a CD-ROM drive, etc., and in particular, power loading and / or ejecting a disk tray from the disk device body. Regarding things.

[0002]

2. Description of the Related Art Conventionally, CD players and CD-ROMs
In a disk device such as a drive, a CD or a CD-RO
There is one in which a disc for recording and / or reproducing such as M is power-loaded and / or ejected to / from a disc device main body by a disc tray.

Usually, this type of disk device is provided with an emergency eject mechanism for manually ejecting the disk tray in an emergency where the power cannot be turned on due to a power failure, an electric system failure or the like.

As shown in FIG. 8, the conventional emergency eject mechanism has a slider 41 and an emergency eject spring 42 composed of a compression coil spring and a tension coil spring.

Then, when the disc tray 43 is loaded in the direction of the arrow a to the loading completion position P ₁ in the disc device main body 44, the slider 41 is pushed by the disc tray 43 in the direction of the arrow a to cause the emergency eject spring 42 to move. Charge the eject power.

When the disc tray 43 is unlocked at the loading completion position during the emergency eject, the emergency eject spring 42 causes the disc tray 43 to move the disc tray 43 to a predetermined position outside the disc device main body 44 through the slider 41. The disk tray 43 is pushed out to P _{2 in the} direction of the arrow b, and then the disk tray 43 can be manually pulled out to the outside of the disk device main body 44.

At this time, conventionally, the slider 41 and the emergency
The ejecting spring 42 was assembled separately.

[0008]

Therefore, conventionally, it has been troublesome to assemble the emergency eject mechanism into a narrow space in the disk device main body 44, and to disassemble the maintenance device at the time of maintenance. Particularly, in the case where the compression coil spring is used as the emergency eject spring, the compression coil spring has a pair of spring locking portions 45, 4 at the time of assembly or disassembly, as shown by the one-dot chain line in FIG. 8B.
It easily bends into a bow shape between 6 and easily falls off. In addition, the one that uses the tension coil spring as the emergency eject spring is troublesome to lock and remove both ends of the tension coil spring between the slider and the disc tray or the disc device body in a narrow space. ing.

The present invention has been made in order to solve the above problems, and enables an emergency eject mechanism to be easily assembled and disassembled in a narrow space into the main body of a disk device. It is intended to provide a disk device.

[0010]

DISCLOSURE OF THE INVENTION To achieve the above object, a disk device of the present invention comprises a disk tray for loading and ejecting a recording and / or reproducing disk into the disk device main body, and the above disk. mounted in the apparatus main body, the eject force during the loading of the disk tray is charged, in the disk apparatus that includes a emergency eject spring for extruding urging the eject direction the disk tray from the loading completion position, the length long housing and, above
Included set freely slide along the serial housing in the longitudinal direction of the housing
And Maretasu rider, the length of the casing to the housing
The ejector spring is installed along the slider and pushes the slider in the eject direction to urge the slider.
Is pushed by a part of the disc tray when loading
By setting the slider to the emergency
・ Push in the loading direction against the eject spring.
At the time of emergency eject, the above disc
Place the tray on the above emergency eject spring.
What is configuration Emaji <br/> Enshi Eject mechanism by a projection extruding to eject direction, in which the upper disappeared Maje <br/> solvency Eject mechanism attached to the disk device by the housing.

[0011]

The disk device of the present invention constructed as described above has an emergency eject mechanism having a long length.
The housing, the slider and the emergency eject spring installed in the housing , and the slider
The disc is loaded when the disc tray is loaded.
The slider is pressed by being pressed by part of the tray.
Rhodin against the spring for the merger eject
Push in the direction of the emergency, during an emergency eject
Put the above disc tray into the emergency
Since the emergency eject mechanism is configured by the projection that is pushed out in the eject direction by the eject spring , the emergency eject mechanism is unitized.
It has been, or assembling the emergency eject mechanism de <br/> disk device narrow space within the body, at the time of decomposition, or easily assembled to the emergency eject mechanism by housing, you decomposition It is possible
It

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to a CD player and a CD-ROM.
An embodiment applied to a disk device such as a drive will be described with reference to the drawings.

First, an outline of the entire disk device will be described with reference to FIGS. 6 and 7.

This disk device records and / or records an optical disk such as a CD or ROM or a disk 1 such as a magneto-optical disk.
Alternatively, the disc 1 has a center hole 1
a is formed.

Next, a horizontally elongated opening 2a is formed at the front end of the disk device main body 2 formed in a flat box shape, and the disk tray 3 can be freely inserted and removed horizontally from the opening 2a in the directions of arrows a and b. It is installed.

A pair of left and right guide rollers 4 and 5 rotatably attached to the rear ends of the left and right side surfaces of the disc tray 3 and the front ends of the left and right sides inside the disc device body 2.
A pair of left and right guide grooves 6 and 7 formed on the left and right sides of the disk device body 2 and on the left and right sides of the disk tray 3.
It is loosely fitted inside. The disc tray 3 is guided by the guide mechanism including the guide rollers 4 and 5 and the guide rails 6 and 7, and the disc device main body 2
On the other hand, power loading and / or power ejection is performed in the directions of arrows a and b.

Next, a substantially circular recess 9 for mounting the disc 1 is formed on the upper surface of the disc tray 3.
A disc table 10 is attached to the center of the recess 9. Then, the disk table 10 is configured to be rotationally driven by the spindle 12 of the spindle motor 11 attached to the lower portion of the disk tray 3. A self-chucking mechanism using three balls 13 is attached to the disc table 10.

Next, an opening 14 is formed in the disk tray 3 on the side of the disk table 10 in the direction of arrow b, and a carriage 16 having an objective lens 15 in this opening 14 is attached to the lower part of the disk tray 3. 1 by a linear voice coil motor (not shown)
An optical pickup 17 adapted to be moved in the directions of arrows a and b in FIG.

A gear motor (not shown) for power loading and / or power ejecting the disc tray 3 is mounted in the disc tray 3 and the disc device main body 2.

Then, at the time of loading, as shown in FIG. 6, the disc 1 is horizontally inserted from above into the recess 9 of the disc tray 3 ejected in the direction of the arrow b to the outside of the disc device main body 2, and the disc is inserted. 1 is horizontally fitted onto the disk table 10 through the center hole 1a, and self-chucked by the self-chucking mechanism by the three balls 13. Then, the recording surface of the disc 1 is brought close to the objective lens 15 of the optical pickup 16.

Next, for example, when the front panel 3a of the disc tray 13 is lightly pushed in the direction of arrow a with a finger, a loading switch (not shown) is turned on, and the gear motor drives the disc tray 3 as shown in FIG. Is arrow a
Direction is power loaded. Then, while the disk 1 is self-chucked on the disk table 10 by the disk tray 3, the spindle motor 1
2 and the optical pickup 16 and the like are power-loaded into the disk device main body 2.

Then, as shown in FIG. 7, at the loading completion position in the disk device main body 2, the disk tray 3
Are locked by a lock mechanism (not shown).

Then, in the loading state shown in FIG.
The disk 1 is rotationally driven by the spindle motor 11 via the disk table 10 according to a command from the host computer, and the carriage 16 of the optical pickup 17 is moved in the opening 14 in the directions a and b by the linear voice coil motor. , Objective lens 15
Recording and / or reproduction of the disk 1 is performed by laser light emitted from the disk.

Next, at the time of ejection, for example, the front panel 3a of the disc tray 3 shown in FIG. 7 is lightly pressed again in the direction of arrow a with a finger, or the lock mechanism is unlocked by a command from the host computer. At the same time, an eject switch (not shown) is turned on, and the disc motor 3 is ejected by the gear motor in the direction of arrow b as shown in FIG.

Next, the emergency eject mechanism will be described with reference to FIGS.

This emergency eject mechanism 1
Reference numeral 9 denotes a substantially rectangular parallelepiped casing 20 formed of synthetic resin or the like, and a casing 20 formed of synthetic resin or the like and incorporated in the casing 20 so as to be slidable in the longitudinal direction of the casing 20. A slider 21, a protrusion 23 integrally formed with the slider 21 and protruding from the slit 22 of the housing 20 to the outside of the housing 20, and a slider 21 incorporated in the housing 20 in the arrow b direction which is the eject direction. It is unitized by an emergency eject spring 24 that pushes and urges the force.

Although the emergency eject spring 24 may be a compression coil spring, here, a tension coil spring is used, and both ends 24a and 24b of the compression coil spring are used for the housing 20.
And is locked in the spring locking holes 25a and 25b of the slider 21.

A pair of mounting pieces 26 having a pair of mounting holes 26a are integrally formed at both ends of the housing 21 in the longitudinal direction, and the tip end of the mounting piece 26 on the arrow a direction side which is the loading direction. An elastic hook 27 that locks the protrusion 23 is integrally formed.

According to the emergency eject mechanism 19 which is unitized as described above, the housing 20 is previously prepared.
Since the slider 21 and the emergency eject spring 14 can be incorporated in the inside of the disk device, as shown in FIGS. 1 and 4, when the disk device is assembled, as shown in FIGS. The emergency eject mechanism 19 can be easily assembled by the housing 20 in a narrow space on one side of the recess, and likewise, can be easily disassembled.

That is, it is possible to save the trouble of separately assembling and disassembling the slider 21 and the emergency eject spring.

The housing 20 uses the pair of mounting holes 26a of the pair of mounting pieces 26 to fix screws with a pair of screws 28 inserted from above, and a pair of mounting pins provided perpendicularly to the disk device body 2. It can be easily attached to the inside of the disk device body 2 by inserting it from above (not shown) or the like.

Next, the emergency eject operation will be described.

As shown in FIGS. 1 and 4, the disc tray 3 is loaded into the main body 2 of the disc device from the direction of the arrow a, and from the predetermined position P ₂ to the loading completion position P ₁ by the stroke S _{1 in the} direction of the arrow a. Part of the disc tray 3 comes into contact with the protrusion 23 while being inserted into the
Since the slider 21 is pushed in the direction of arrow a, the eject force is charged in the emergency eject spring 24.

Then, at the loading completion position P ₁ , the disc tray 3 is locked by a lock mechanism (not shown).

Next, at the time of emergency eject, at the moment when the disc tray 3 is unlocked, the emergency eject spring 24 pushes the slider 21 in the direction of arrow b, and the projection 23 thereof completes the loading of the disc tray 3. Disc tray 3 from position P ₁ to predetermined position P ₂ by stroke S ₁
Is automatically ejected in the direction of arrow b.

Next, with reference to FIGS. 1, 4 and 5, the structure for attaching / detaching the disc tray 3 to / from the disc device body 2 will be described.

First, the front panel 3a of the disc tray 3 can be assembled and disassembled.

Next, as described above, the disc tray 3
The left and right rear ends (the ends on the arrow a direction side) and the front ends of the left and right sides of the disk device body 2 (the ends on the arrow b direction side).
A pair of left and right guide rollers 4 and 5 rotatably attached to and are provided in a pair of left and right guide grooves 6 and 7 formed on the left and right side surfaces of the disk device body 2 and the left and right side surfaces of the disk tray 3. The guide mechanism is configured by being loosely fitted.

As shown in FIG. 5A, the pair of left and right guide grooves 6 and 7 are arranged on the same horizontal level WL so as to overlap from the left and right.

The position of the guide roller 4 shown by the solid line in FIG. 5A is the loading completion position P ₁ of the disc tray 3, and the rear end of the guide groove 6 on the disc device main body 2 side (the direction of arrow a) Roller end 2 at a slider lock position P ₃ to be described later, which is separated from the loading completion position P ₁ by a stroke S _{2 in the} direction of arrow a on the upper surface side of the roller entrance 2).
9 is opened.

Further, as shown in FIG. 5A, when the guide roller 5 reaches the loading completion position P ₁ , the front end of the guide groove 7 on the disc tray 3 side (the end portion on the arrow b direction side). On the lower surface side, a roller entrance / exit 30 is opened at a position P ₅ separated from the position P ₄ of the guide roller 5 on the side of the disk device main body 2 by the same stroke S _{2 in the} direction of arrow b.

By the way, normally, as shown in FIG.
When the disc tray 3 is loaded in the direction of arrow a to the loading completion position P ₁ in the disc device main body 2,
Since the front panel 3a prevents further insertion of the disc tray 3 in the direction of the arrow a, the slider 21 of the emergency eject mechanism 19 shown in FIG. 1 cannot be locked by the hook 27.

Therefore, when the disc tray 3 is taken out from the disc device main body 2, first, as shown in FIG.
The front panel 3a is removed as shown by the dotted line.

Then, as shown by the alternate long and short dash line in FIG. 1B, the disc tray 3 is moved from the loading completion position P ₁ in the disc device main body 2 to the stroke S _{2 in the} direction of arrow a.
It is pushed deeply in the direction of arrow a against the emergency eject spring 24 to the slider lock position P ₃ which is separated only by the distance.

As a result, the protrusion 23 of the slider 21 is locked against the hook 27 against elasticity, and the guide roller 5 on the side of the disc tray 3 is guided by the disc device as shown by the one-dot chain line in FIG. The disc tray 3 is moved to a position right below the roller entrance 29 of the guide groove 6 on the main body 2 side.
The roller inlet / outlet 30 of the side guide groove 7 is moved to directly below the guide roller 5 on the side of the disk device body 2.

Therefore, as shown in FIG. 5B, when the disc tray 3 is lifted so as to move in parallel in the direction of arrow c, the guide rollers 4 and 5 are moved into and out of the guide grooves 6 and 7, respectively. It is possible to easily separate the disk tray 3 from the guide grooves 6 and 7 in the direction orthogonal to the longitudinal direction of the guide grooves 6 and 7. After that, the disk tray 3 is removed.
It can be easily withdrawn from the opening 2a in the direction of the arrow b.

On the contrary, at the time of assembly, at the position shown in FIG. 5B, if the disc tray 3 is lowered so as to move in parallel with the direction of the arrow d, as shown in FIG. The guide rollers 4 and 5 are connected to the respective roller entrances and exits 29 and 30.
Can easily be loosely fitted in the respective guide grooves 6, 7.

After that, by operating the hook 27 from the outside of the disk device body 2 to unlock the slider 21, the emergency eject mechanism 19
Will be able to resume the normal operation described above.

At this time, conventionally, when the disc tray 3 is attached to or detached from the disc device main body 2, an emergency
Although the eject spring 24 and related parts had to be assembled and disassembled one by one, in the present invention, the slider 21 is locked by the hook 27 to prevent the emergency eject spring 24 from working. Since the slider 21 is not interfered with by the disc tray 3 at all, the disc tray 3 can be easily attached to and detached from the disc device body 2 with the emergency eject mechanism 19 still attached to the disc device body 2.

The embodiment of the present invention has been described above.
The present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention.

[0051]

The disk device of the present invention constructed as described above has the following effects.

According to a first aspect of the present invention, an emergency eject mechanism is formed on a housing having a long length, a slider and an emergency eject spring mounted in the housing, and a slider, and the emergency eject mechanism is mounted on the disk tray.
To be pushed by a part of the disc tray when
The slider for the emergency eject.
Push in the loading direction against the
At the time of sea eject, the disc tray is
-How to eject by using the eject spring
Since the emergency eject mechanism was configured with the protrusion that pushes out in the direction , the emergency eject mechanism is unitized, and this emergency eject mechanism is
・ When assembling or disassembling the eject mechanism in the narrow space inside the disk drive body, this emergency
・ Eject mechanism can be easily assembled by housing
Since to allow you to decomposition, it is possible to remarkably improve the workability in assembly and disassembly with respect to the disk device body of the emergency eject mechanism, workability at low costs and maintenance due to high efficiency of the assembly operation Can be improved.

According to a second aspect, the elasticity formed on the casing is
A hook having a lock of the protrusion of the slider pushed by the disc tray when the disc tray is pushed further deeply in the loading direction from the loading completion position in the disc device main body. has a hook that, the disc device main body and the de
The disc tray is formed between the disc tray and the disc tray.
In the disk device body,
The guide mechanism that guides in the direction of
And the disk groove.
From the loading completion position in the disk device
Push it in the direction of
When locked by the hook, the guide mechanism
Align the guide roller and the guide groove in the length direction of the guide groove.
Disassemble in the direction orthogonal to the above, and remove the disc tray
It can be pulled out to the outside of the disk unit body
Since it is configured as described above,
A series of operations for attaching and detaching the tray can be smoothly performed , and the workability of maintenance can be improved.

[0054]

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view illustrating an emergency eject mechanism which is an embodiment of a disk device of the present invention.

FIG. 2 is a perspective view showing one side surface of the above emergency eject mechanism.

FIG. 3 is a perspective view showing the other side surface of the above emergency eject mechanism.

FIG. 4 is a partially cutaway plan view for explaining an emergency eject operation of the disc tray.

5 is a cross-sectional side view taken along the line AA of FIG. 4 for explaining the assembly and disassembly structure of the disc tray with respect to the entire disc device.

FIG. 6 is a perspective view showing an eject state of the entire disc device.

FIG. 7 is a perspective view showing a loading state of the entire disc device.

FIG. 8 is a sectional plan view illustrating a conventional emergency eject mechanism.

[Explanation of symbols]

1 disc 2 Disk device body 3 disc tray 4, 5 guide roller 6,7 guide groove 19 Emergency Eject Organization 20 housing 21 Slider 23 Slider protrusion 24 Emergency eject spring 27 hooks 29, 30 Roller entrance / exit

Claims (2)

(57) [Claims] 1. A disc tray for loading and ejecting a recording and / or reproducing disc into and from a disc device main body, and an ejecting force charged when the disc tray is loaded in the disc device main body. , in the disk apparatus that includes a emergency eject spring for extruding urging the eject direction the disk tray from the loading completion position, and a long casing length, along the length of the casing to the housing slidably assembled Te
And sliders which written, incorporated along the length of the casing to the housing,
And emergency eject spring extruding urging the slider in the ejection direction, are formed on the slider, the disk tray b
Being pushed by a part of the disc tray during reading
The slider above the emergency
Push in the loading direction against the eject spring and
The above disc tray at the time of emergency eject
With the emergency eject spring above.
Emergency <br/> over-ejection mechanism by a projection and to push the object direction is configured, the disk device being characterized in that mounted in the disk apparatus on disappeared Majenshi Eject mechanism by the housing. 2. An elastic hook formed on the casing.
A is, when the disk tray is pushed deeply into the further loading direction from the loading completed position of the disk device body, has a hook to lock said protrusion of said slider pushed by the disk tray, the disc Between the device body and the disc tray above
The disc tray is made up of the disc device body
Guides in the loading and ejecting directions
The id mechanism consists of a guide roller and a guide groove.
Is, the disc tray of the disk device body Rohde
Push in the loading direction from the
Lock the protrusion on the slider with the hook
The guide roller and guide groove of the guide mechanism
In the direction perpendicular to the length of the guide groove
The disc tray outside the main body of the disc device.
The disk device according to claim 1, wherein the disk device is constructed so that it can be removed .