JPH0668571A - Disk device - Google Patents

Abstract

PURPOSE:To easily release locking of a latch manually by driving forward a pinion with a loading motor fitted to a disk tray so as to make rolling contact of the pinion along a rack. CONSTITUTION:When a decoration plate 13a of a disk tray 13 is depressed in a direction (f) at ejection, an eject switch 47 is closed, a loading motor 28 is driven reverse to drive reverse a pinion 29 in a direction (i). Then the pinion 29 is in rolling contact along a rack 30 in a direction (g) the moment when lock of the disk tray 13 is released, and power eject is implemented to the disk tray 13 in a direction (g). Then the disk tray 13 is ejected in the direction (g) up to an eject position outside of a disk device main body 12, and when a loading motor 28 is stopped, the rack 30 is moved and restored in the direction (g) by a compression coil spring 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc device most suitable for application to, for example, a CD player or a CD-ROM drive, and more particularly to a device for power loading and ejecting a disc tray to a disc device main body. .

[0002]

2. Description of the Related Art Conventionally, CD players and CD-ROMs
In some disk devices such as drives, a disk for recording and / or reproducing is power-loaded and ejected from a disk device main body by a disk tray.

In the conventional disk device of this type,
As shown in FIG. 7, a motor mounting plate 1 is rotatably mounted on a lower portion of a disc tray (not shown) about a fulcrum shaft 2, and the loading motor 3 and the loading motor 3 drive the motor mounting plate 1 to rotate. The pinion 4 is attached. The end portion 5a in the loading direction of the rack 5 mounted in the disk device main body (not shown) is curved in an arc shape by 180 ° about the fulcrum shaft 2.

At the time of loading, the loading motor 3 drives the pinion 4 to rotate forward in the direction of arrow a so that the pinion 4 rolls in the direction of arrow b along the rack 5 from the position shown by the solid line in FIG. Then, the disc tray is power-loaded in the disc device main body in the direction of arrow b.

After the disc tray reaches the loading position, the pinion 4 is moved around the fulcrum shaft 2 along the arcuately curved end portion 5a of the rack 5, as shown by the alternate long and short dash line in FIG. The disc tray is locked in its loading position by reversing 180 ° in the direction of arrow c.

Next, at the time of ejecting, the pinion 4 is driven to rotate in the direction of the arrow d in the reverse direction by the loading motor 3 to move the pinion 4 from the position shown by the alternate long and short dash line in FIG. Along fulcrum axis 2
After reversing by 180 ° in the direction of arrow e around the disk, the pinion 4 is rolled in the direction of arrow e along the rack 5 so that the disc tray is ejected in the direction of arrow e. It was

[0007]

However, in such a conventional power loading and power ejecting method, the disc tray is manually ejected in an emergency such as power failure or power failure due to electric system failure. There was a problem that almost no emergency eject could be done.

The present invention has been made to solve the above problems, and facilitates emergency emergency ejection in a disk device for power loading and ejecting a disk using a disk tray. It is an object of the present invention to provide a disk device having

[0009]

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. A pinion that is driven to rotate normally and reversely by a loading motor attached to a tray, a rack that is provided in the disk device body and meshes with the pinion, and is rotatably attached to the disk device body. A latch for locking the disc tray at a loading position in the disc device body, and an emergency eject pin insertion hole provided in the disc tray or the disc device body facing the latch are provided. . At this time, the rack is configured to be movable within a certain range in the length direction, a control unit of the locking means is formed in the rack, and the rack is pressed and urged in the eject direction of the disc tray. It is preferable to provide the urging means of No. 2 or the second urging means for urging the disc tray from the loading position in the eject direction.

[0010]

In the disk device of the present invention configured as described above, the pinion is driven to rotate normally and reversely by the loading motor attached to the disk tray.
This is a disk device that power-loads and ejects a disk tray onto a disk device main body by rolling a pinion along a rack provided in the disk device main body. Since the disc tray is locked by the latch at the loading position and the emergency eject pin insertion hole facing the latch is provided in the disc tray or the disc device main body, the pin-shaped member is placed in the pin insertion hole. The latch can be easily inserted and unlocked manually.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to a CD player and CD-ROM.
One embodiment applied to a disk device such as a drive is shown in FIGS.
This will be described with reference to FIG.

First, an overview of the entire disk device will be described with reference to FIGS.

This disk device records and / or reproduces a disk 11 such as an optical disk or a magneto-optical disk, and the disk 11 has a center hole 11a formed therein.

Next, a horizontally elongated opening 12a is formed at the front end of the disk device main body 12 formed in a flat box shape, and a disk tray 13 is horizontally mounted in the opening 12a.

The disc tray 13 is provided in a pair of left and right horizontal guide rails 14 having a U-shaped cross section, which are provided in the main body 12 of the disc device.
5, a pair of left and right guide rails 17 provided on the left and right side surfaces of the disc tray 13 are provided with a pair of left and right guide rollers 16 with grooves.
Is loosely fitted to. Then, the disc tray 13 is guided by the guide mechanism including the guide rails and the guide rollers 14 to 17 so that the disc tray 13 is power-loaded and ejected in the horizontal directions of arrows f and g. It is configured.

Next, a substantially circular recess 19 in which the disc 11 is mounted is formed on the upper surface of the disc tray 13, and a disc table 20 is attached to the center of the recess 19. The disc table 20 is configured to be rotationally driven by the spindle 22 of the spindle motor 21 attached to the lower portion of the disc tray 13. A self-chucking mechanism using three balls 23 is attached to the disc table 20.

Next, an opening 24 is formed in the disk tray 13 on the arrow g direction side of the disk table 20, and an optical pickup 26 having an objective lens 25 is mounted in the opening 24. The optical pickup 26 is configured to be driven in the directions f and g in the opening 24 by a linear motor (not shown) attached to the lower portion of the disc tray 13.

Next, a loading motor 28 and a pinion 29, which is driven to rotate forward and backward by a gear train (not shown) by the loading motor 28, are attached to one side of the lower portion of the disc tray 13. There is.

A horizontal rack 30 with a pinion 29 meshed with is attached to one side of the disk device body 12. The rack 30 is guided by a pair of guide pins 31 and a long hole 32, and is configured to be movable within the fixed range L in the disk device main body 12 in the lengthwise directions of arrows f and g. It is urged to move in the direction of arrow g by the compression coil spring 33, which is the urging means.

Next, the power loading and power ejecting operations of the disk 11 of the disk device configured as described above will be described.

First, at the time of loading, FIG. 4 and FIG.
As shown in FIG. 1, the disc 11 is horizontally inserted from above into the recess 19 of the disc tray 13 ejected in the direction of arrow g outside the disc device main body 12, and the disc 1
1 is horizontally fitted on the disc table 20 through the center hole 11a and self-chucked by the self-chucking mechanism by the three balls 23.

Then, the recording surface of the disk 11 is brought close to the objective lens 25 of the optical pickup 26.

Next, when the decorative plate 13a formed at the front end of the disc tray 13 is lightly pushed in the direction of the arrow f with a finger, a loading switch described later is turned on, the loading motor 28 is driven to rotate forward, and the pinion 29 is moved. It is driven to rotate normally in the direction of arrow h.

Then, the pinion 29 is rolled along the rack 30 in the direction of arrow f, and the disc tray 13 is power-loaded in the direction of arrow f, as shown in FIG. Then, by the disc tray 13, the disc 1
1 is self-chucked on the disk table 20, the spindle motor 21 and the optical pickup 2
6 and the like are power-loaded into the disk device body 12.

Then, in the loading state shown in FIG.
Recording of the disk 11 is performed by rotating the disk 11 through the disk table 20 by the spindle motor 21 by a command of the host computer and driving the optical pickup 26 by the linear motor in the openings 24 in the directions f and g. And / or play.

Next, at the time of ejecting, the decorative plate 13a of the disc tray 13 shown in FIG. 6 is lightly pressed again in the direction of arrow f with a finger to turn on an eject switch which will be described later.
The loading motor 28 is driven to rotate in the reverse direction, and the pinion 29 is driven to rotate in the direction of arrow i.

Then, the pinion 29 is rolled along the rack 30 in the direction of arrow g, and the disc tray 13 is power ejected in the direction of arrow g, as shown in FIGS. 4 and 5.

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

First, the opening 12 in the disk device body 12
A latch 35 is arranged near the end of the rack 30 on the arrow g direction side, which is a position near a.
Is mounted in the disk device main body 12 via a horizontal fulcrum shaft 36 so as to be rotatable in a seesaw shape in the up and down directions of arrows j and k. The claw portion 35 is integrally formed on the end portion of the latch 35 on the arrow g direction side,
An end surface of the claw portion 35 on the arrow g direction side is formed as a cam surface 35b formed in a substantially arc shape. Note that the latch 3
5 is rotationally biased in the direction of arrow j by a compression coil blade 37 (see FIG. 3) which is a third biasing means.

Next, the latch 35 is arrowed by the cam projection 38 integrally formed below the end of the latch 35 on the arrow f direction side and the cam recess 39 formed on the end of the rack 30 on the arrow g direction side. Control unit 40 that controls rotation in the j and k directions
Are formed.

Next, the decorative plate 13a of the disc tray 13
A locked portion 41 that is locked by the latch 35 is integrally formed on the lower surface near the end on the side.

Next, the decorative plate 13a of the disc tray 13
A pin insertion hole 42 for an emergency eject is formed in this so as to face the claw portion 35a of the latch 35 from the direction of the arrow f. The pin insertion hole 42 may be provided in the disk device body 12 depending on the case.

Next, a leaf spring 43, which is a second biasing means, is attached to the end portion of the disc tray 13 on the arrow f direction side, and the leaf spring 4 is provided in the disc device body 12.
A stopper 44 is provided for pressing 3 from the direction of arrow f.

Next, details of each operation of power loading, power eject and emergency eject of the disc tray 13 will be described.

First, FIG. 1A shows an eject completed state, in which the disc tray 13 is ejected from the inside of the disc apparatus main body 12 to the eject position in the direction of arrow g. At this time, the pressing force of the compression coil spring 33 in the arrow g direction is transmitted to the disc tray 13 via the rack 30 and the pinion 29, and the disc tray 13 is pressed and biased in the arrow g direction.

Next, at the time of loading, (A) of FIG.
At, the finger is pressed against the decorative plate 13a of the disc tray 13 against the compression coil spring 33 in the direction of arrow f.

Then, the loading switch 46 provided in the disk device main body 12 is turned on, the loading motor 28 is driven in the forward rotation, and the pinion 29 is driven in the forward direction in the direction of arrow h.

Then, as shown in FIG. 1B, the pinion 29 rolls along the rack 30 in the direction of arrow f,
The disk tray 13 moves into the disk device body 12 with an arrow f.
Direction is power loaded.

When the disc tray 13 reaches the loading position in the disc device body 12, as shown in FIG. 1B, the locked portion 41 of the disc tray 13 is cammed by the claw portion 35a of the latch 35. Arrow f on surface 35b
Direction, the latch 35 moves toward the compression coil spring 37.
(Refer to FIG. 3), the claw portion 35a automatically engages with the locked portion 41 by reciprocating once in the directions of the arrows k and j, and the disc tray 13 is automatically locked at the loading position. To do.

At this time, as shown in FIG. 1B, the leaf spring 43 of the disc tray 13 is stopped by the stopper 44.
Is pressed from the direction of arrow f. Then, after this, the loading motor 28 is automatically stopped.

Next, at the time of ejection, as shown in FIG. 2A, the decorative plate 13a of the disc tray 13 is lightly pushed in the direction of arrow f against the plate spring 44 and the compression coil spring 33 with a finger.

Then, the eject switch 47 provided in the disk device main body 12 is turned on, the loading motor 28 is reversely driven, and the pinion 29 is reversely driven in the direction of arrow i.

Then, as shown in FIG. 2 (A), the rack 30 is moved to a certain range L by the pinion 29 (see FIG. 3).
The cam recess 39 of the control unit 40 pushes up the cam projection 38 of the latch 35 in the arrow k direction by being moved in the arrow f direction against the compression coil spring 33.

As a result, the latch 35 is rotationally controlled in the arrow k direction against the compression coil spring 37 (see FIG. 3), and the claw portion 35a is disengaged from the locked portion 41 of the disc tray 13 in the arrow k direction. , The lock of the disc tray 13 at the loading position is automatically released.

On the other hand, the rack 30 is moved in the direction of arrow f by a fixed range L (see FIG. 3) and stopped, and the pinion 29
Is continuously rotated in the direction of arrow i, the pinion 29 rolls in the direction of arrow g along the rack 30 from the moment the disc tray 13 is unlocked, as shown in FIG. As a result, the disc tray 13 is power ejected in the direction of arrow g.

Then, as shown in FIG. 1A, when the disc tray 13 is ejected in the direction of the arrow g to the eject position outside the disc device main body 12 and the loading motor 28 is stopped, the rack 30 is kept constant. Range L
Only by (see FIG. 3), the compression coil spring 33 moves and returns in the direction of arrow g.

Then, the latch 35 is returned to rotate in the direction of arrow j by the compression coil spring (see FIG. 3), and the controller 4
The cam projection 38 of 0 reenters the cam recess 39 in the direction of arrow j.

Next, in the event of an emergency where the power cannot be turned on due to a power failure or an electric system failure, the disk tray 13
At the time of the air-jet ejection in which the disk is ejected manually, the pin-shaped member 48 is inserted into the pin insertion hole 42 of the disc tray 13 from the direction of the arrow f, as shown by the alternate long and short dash line in FIG.

Then, as shown by the alternate long and short dash line in FIG. 1B, the pin-shaped member 48 is pressed against the cam surface 35b of the claw portion 35a of the latch 35 from the direction of the arrow f, and the cam surface 35 thereof.
By the guiding action of b, the latch 35 rotates in the direction of arrow k against the compression coil spring 37 (see FIG. 3), the pawl portion 35a disengages from the locked portion 41 of the disc tray 13 in the direction of arrow k, and the disc tray The lock at the loading position of 13 is released.

At this time, the disc tray 13 is popped up by the pressing repulsive force of the leaf spring 43 against the stopper 44 in the direction of the arrow f, and the disc tray 13 is arrowed by the arrow g.
Extruded a little automatically in the direction.

Therefore, the decorative plate 13 of the disc tray 13
The disc tray 13 can be ejected in the direction of the arrow g by manually operating the hand a.

The above is a description of one embodiment of the present invention.
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.

[0053]

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

According to the first aspect of the present invention, the pinion is rotated forward and backward by the loading motor attached to the disc tray, so that the pinion rolls along the rack provided in the disc apparatus main body. Although it is a disk device for power loading and power ejecting to the disk device main body, the disk tray is locked by the latch at the loading position, and the emergency eject pin insertion hole facing the latch is connected to the disk tray or Since it is provided on the disk device main body, the pin-shaped member can be inserted into the pin insertion hole to easily unlock the latch manually. Therefore, in the event of an emergency where the power cannot be turned on due to a power outage or an electrical system failure, etc.
Eject operation can be performed easily.

According to a second aspect of the present invention, the rack is configured to be movable in the length direction within a certain range, and the control unit of the locking means is formed on the rack. Therefore, at the time of power ejection, the rack automatically latches. The lock can be unlocked and the latch unlocking mechanism can be simplified.

According to the third aspect of the present invention, the first urging means for urging the rack in the eject direction of the disc tray is provided, so that the automatic lock releasing operation of the latch by the rack at the time of power ejecting can be performed smoothly and reliably. It can be carried out.

According to the present invention, the second urging means for urging the disc tray from the loading position in the eject direction is provided. Therefore, at the time of the emergency eject, the disc tray is slightly automatically moved by the pop-up operation. Since the disc tray can be pushed out and the disc tray can be easily put on by hand, the disc tray can be easily ejected manually.

[Brief description of drawings]

FIG. 1A is a partially cutaway side view schematically showing an eject completed state of a disc tray of a disc device according to an embodiment of the present invention, and FIG. It is a partially cutaway side view schematically showing a loading completion state and an emergency eject operation.

FIG. 2A is a partially cutaway side view schematically showing an unlocking operation of a latch at the time of ejecting, and FIG. 2B is a schematic side view showing an ejecting operation. It is a partial cutaway side view.

3A is a partially cutaway plan view schematically showing a relationship between a latch and a rack, and FIG. 3B is a plan view of FIG.
It is a side view of (A).

FIG. 4 is a perspective view of the entire disc device.

FIG. 5 is a plan view of the entire disc device showing a state where ejection of the disc tray is completed.

FIG. 6 is a plan view of the entire disc device showing a loading state of the disc tray.

FIG. 7 is a schematic plan view showing a relationship between a rack and a pinion of a conventional disk device.

[Explanation of symbols]

 11 disk 12 disk device body 13 disk tray 28 loading motor 29 pinion 30 rack 31 guide pin 32 long hole 33 compression coil spring (first biasing means) 35 latch 35a latch claw portion 35b latch cam surface 36 fulcrum shaft 38 cam Protrusion 39 Cam recess 40 Control part 41 Locked part 42 Pin insertion hole 43 Leaf spring (second urging means) 44 Stopper 46 Loading switch 47 Eject switch 48 Pin-shaped member

Claims (4)

[Claims] 1. A disc tray for loading and ejecting a recording and / or reproducing disc into and from a disc device main body, a pinion that is driven to rotate in the forward and reverse directions by a loading motor attached to the disc tray, and the disc. A rack provided in the main body of the apparatus, in which the pinion is meshed, and rotatably mounted in the main body of the disk device,
A disk device including a latch for locking the disk tray at a loading position in the disk device main body, and an emergency eject pin insertion hole provided in the disk tray or the disk device main body facing the latch. . 2. The disk device according to claim 1, wherein said rack is configured to be movable in a lengthwise direction within a certain range, and a control portion of said locking means is formed in this rack. 3. A disk device comprising first urging means for urging the rack in the eject direction of the disk tray. 4. The disk device according to claim 1, further comprising second urging means for urging the disk tray from the loading position in the eject direction.