JPH0668572A - Eject mechanism for disk device - Google Patents

Abstract

PURPOSE:To attain soft eject while loading and eject operations are executed quickly. CONSTITUTION:In the disk device loading and ejecting a disk tray by manual operation, a lock release plunger solenoid 34 is provided to a lock mechanism 11 locking the disk tray in the loading state and an eject spring 32 for the disk tray is provided to the mechanism 11.

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 computer-compatible CD-ROM drive, and more particularly to an eject mechanism for ejecting a disc tray.

[0002]

2. Description of the Related Art Conventionally, in a disc device such as a CD player or a CD-ROM drive compatible with a computer, a disc for recording and / or reproducing is placed on a disc tray and loaded in the disc device main body. ,
The disk tray is loaded and ejected by using the DC motor (note that some loadings are performed manually, and the DC motor is used only for ejecting), and the disk tray is not used. There are two types, one is that all of the loading and ejecting are performed manually.

[0003]

However, the conventional disk device using the DC motor has a complicated mechanism, is extremely expensive, and is more expensive than the manual disk loading and ejecting. Slow loading and ejecting speed. Further, there is a problem that the emergency eject mechanism for manually ejecting the disk tray becomes complicated and expensive in case of emergency such as power failure or electric system failure.

Further, the conventional disk device which does not use the DC motor has a problem that the disk tray cannot be soft-ejected by using the command of the host computer.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an ejecting mechanism for a disk device, which can perform loading and ejecting operations quickly, but can also perform soft ejecting. I am trying.

[0006]

SUMMARY OF THE INVENTION To achieve the above object, an eject mechanism of a disk device according to the present invention has a disk for recording and / or reproducing placed on a disk tray and manually operated in the disk device main body. In a disk device configured to be loaded and ejected by operation, a lock mechanism provided in the disk device main body for locking the disk tray loaded in the disk device main body, and unlocking of the lock mechanism And an ejecting spring for ejecting the unlocked disc tray to the outside of the disc device main body.

[0007]

Since the eject mechanism of the disc device of the present invention configured as described above is a disc device for manually loading and ejecting the disc tray,
The loading and ejecting operations can be performed quickly.
Nevertheless, the lock mechanism that locks the disc tray in the loading state is provided with an electromagnetic means for unlocking, and an ejecting spring for the disc tray is provided, so by energizing the electromagnetic means by a command of the host computer, etc. The tray can be soft ejected by the ejecting spring.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk device in which the present invention is applied to a CD-ROM drive will be described below with reference to the drawings.

First, an outline of the entire disk device will be described with reference to FIG.

First, as shown in FIG. 9, a front panel 2 is attached to the front end of a disk device body 1 formed in a flat box shape, and a tray insertion opening 3 is horizontally formed in the front panel 2. There is. And tray insertion slot 3
The disk tray 4 is horizontally inserted into the disk device body 1. And the disc tray 4
A recording and / or reproducing disk 6 which is a CD-ROM is horizontally mounted on a disk mounting portion 5 which is a substantially circular recess formed on the upper surface of the disk.

A pair of left and right guide rails 7 formed on the left and right side surfaces of the disc tray 4 are horizontally inserted into a pair of left and right guide grooves 8 formed in the disc device main body 1, so that the disc tray 4 is Guided by these guide grooves 8, arrows a, b are applied to the disk device main body 1.
It is configured to be loaded and ejected in the direction.

A decorative plate 9 which also functions as a finger pressing plate at the time of manual loading is formed on the front end of the disc tray 4, and the lock pin 10 is provided on the lower surface 4b of the disc tray 4 near the decorative plate 9. Are formed vertically.

When the disc tray 4 is completely loaded in the disc device main body 1 in the direction of arrow a,
A lock mechanism 11, which will be described later, that locks the locked pin 10 with a lock lever is provided in the disk device 1.

The front panel 2 also has an eject button 12, a pin insertion hole 13 for an emergency eject mechanism, an earphone jack 14 and a volume 1.
5 and the like are provided.

Next, referring to FIG. 10, the disc tray 4
The outline of the loading and ejecting mechanism 17 will be described.

First, a moving block 20 to which a disk table 18 and an optical pickup 19 are attached, and a clamper slider 22 for holding a disk clamper 21 are built in the disk device body 1.
A pair of left and right connecting portions 22a formed at the rear end of the clamper slider 22 are connected to a pair of left and right connecting pins 20a formed at the rear end of the moving block 20.

A pair of left and right connecting pins 20a formed between the pair of left and right connecting pins 20a and a pair of left and right spring locking portions 23 fixed to the front side (direction of arrow b) in the disk device body 1 are formed by tension coil springs. A pair of ejecting springs 2
4 is hung.

At the rear end of the disc tray 4 (the end on the arrow a direction side), a pair of left and right connecting portions 22a are provided with an arrow a.
A pair of left and right abutting portions 25 that abut on each other is formed.

When the disc tray 4 is completely ejected in the direction of the arrow b from the inside of the disc device main body 1, as shown in FIG. 10A, the moving block 20 and the clamper slider 22 form a pair of left and right. It is slid together in the direction of arrow b by the ejecting spring 24, and only the moving block 20 has a pair of left and right connecting pins 20a.
Is rotated about the arrow in the direction of the arrow c, which is a downward direction, and is inclined.

Next, at the time of loading, as shown in FIG. 10 (A), after the disc 6 is horizontally placed in the disc placing portion 5 on the disc tray 4, as shown in FIG. 10 (B). As described above, the decorative plate 9 of the disc tray 4 is pushed by a finger, and the disc tray 4 is manually pushed into the disc device main body 1 horizontally in the direction of arrow a.

At this time, as shown in FIG. 10B, the pair of left and right abutting portions 25 of the disc tray 4 pushes the pair of left and right connecting portions 22a in the direction of arrow a, so that the moving block 20 and the clamper slider 22 are connected. Are slid together in the direction of arrow a against the pair of right and left ejecting springs 24, and only the moving block 20 is guided by a guide mechanism (not shown), and is upward with the pair of left and right connecting pins 20a as the center. It is rotated in the direction of arrow d and becomes horizontal.

Then, as shown in FIG. 10B, the disc table 18 is fitted into the center hole of the disc 6 from below, and the disc 6 is floated above the disc tray 4 by the disc clamper 21. The disk 6 is magnetically chucked on the disk table 18. And at the same time, the optical pickup 1
9 is brought close to the lower surface of the disk 6. Then, at the loading position, the locked pin 10 of the disc tray 4 is automatically locked by the lock mechanism 11.

Next, at the time of ejection, the lock pin 11 is automatically unlocked by the lock mechanism 11 or the eject button 12 is pressed with a finger by a command from the host computer, and the lock pin 11 is locked by the lock mechanism 11. Unlock 10

Then, as shown in FIG. 10C, the moving block 20 and the clamper slider 22 are moved together by the pair of left and right ejecting springs 24 to the eject position shown in FIG. Pushed back to.

Then, the pair of left and right connecting portions 22a pushes the pair of left and right abutting portions 25 in the direction of the arrow a, so that the disc tray 4 is directed toward the outside of the disc device body 1 by the arrow b.
Soft-ejected by pop-up action in the direction. So, put your hands on the decorative plate 9
Can be quickly pulled out in the direction of arrow b by manual operation.

Next, referring to FIGS. 1 to 8, the lock mechanism 1 will be described.
1 will be described.

First, as shown in FIGS. 1 and 2, a substantially U-shaped lock lever 28 and a substantially V-shaped lock release lever 29 are mounted on a chassis 27 via a pair of fulcrum shafts 30 and 31, respectively. It is attached rotatably in the directions of arrows e and f and in the directions of arrows g and h.

The lock release lever 29 having a short arm length is locked by the lock / eject spring 32, which is an urging means formed by a tension coil spring hung between the levers 28 and 29, as shown in FIG. It is rotated to the position in the direction of arrow g and abuts on the stopper 33 on the chassis 27. The circular tip portion 29a of the lock release lever 29 pushes the tip portion 28a of the lock lever 28 having a long arm length, and the lock lever 28 rotates in the direction of arrow e to the lock release position shown in FIG. Has been done. Then, as shown in FIG. 2, the lock lever 28 and the lock release lever 29 are configured so that their tip portions 28a, 29a are butted against each other by a spring 37 and are stabilized.

Next, a plunger solenoid 34, which is an electromagnetic means, is mounted on the chassis 27, and a connecting pin 36 integrally formed with the lock lever 28 is formed in an annular groove 35 formed at the tip of the plunger 34a. Is loosely fitted.

The center P ₁ of the plunger solenoid 34 is inclined at an angle θ ₁ of 30 ° to 60 ° with respect to the slide center P _{2 of the} disc tray 4 in the directions of arrows a and b, and the disc device body 1 Is added to the front and back direction (arrow a, b direction) and left and right direction (arrow a, b)
It prevents the plunger 34a from being accidentally pulled in the direction of the arrow i by an impact in a direction (perpendicular to the direction).

Next, as shown in FIG. 6, the lower surface of the cylindrical locked pin 10 and the upper surface of the circular tip portion 29a of the lock release lever 29a are abutted against each other in the directions of arrows a and b. A pair of contact portions 37 and 38 are integrally formed. Then, as shown in FIG. 4, the pair of contact portions 3
7 and 38 are formed in a substantially elliptical shape, and when these abutting portions 37 and 38 abut each other in the direction of arrow a, these abutting portions 37 and 38 have a substantially diameter of the locked pin 10. These abutting portions 37, so as to be accommodated in D.
38 is displaced in the directions of arrows a and b with respect to the centers of the locked pin 10 and the tip 29a of the lock release lever 29, respectively.

Next, as shown in FIG. 8A, a printed circuit board in which an eject switch 40 operated by an eject button 12 provided on the front panel 2 is horizontally attached to the bottom of the disk device main body 1 is provided. It is mounted on 41.

Next, as shown in FIG. 8B, the eject completion detecting switch 42 operated by the free end portion 28b of the lock lever 28 is mounted on the printed circuit board 41.

Next, as shown in FIG. 7, the pin insertion hole 13 formed in the front panel 2 is formed into a small-diameter hole which is tapered in the direction of arrow a. A pin receiving plate 43 is integrally formed at the lower portion of the lock lever 28 near the tip thereof, and when the lock lever 28 is rotated in the direction of arrow f to the lock position shown in FIG.
Is configured to obliquely close the inner opening end 13a of the pin insertion hole 13. The free end 28b of the lock lever 28 and the pin receiving plate 43 are projected downward from an opening 39 formed in the chassis 27 shown in FIGS.

Next, the operation of the lock mechanism 11 configured as described above will be described.

First, FIG. 2 shows a state after the disc tray 4 is ejected, and the lock lever 28 and the lock release lever 29 are respectively moved by the springs 32 by arrows e and g.
The lock release lever 29 is rotated in the direction
In the state of contacting 3. The lock lever 28 and the lock release lever 29 are made stable by being abutted against each other by the spring 32 between these tip portions 28a, 29a.

Next, FIG. 1 shows that loading of the disc tray 4 into the disc device main body 1 from the direction of arrow a is completed,
It shows a state in which the locked pin 10 is locked by the tip portion 28 a of the lock lever 28.

When the locked pin 10 is locked by the lock mechanism 11, first, as shown in FIG. 3, the contact portion 37 of the locked pin 10 of the disc tray 4 is arrowed to the contact portion 38 of the lock release lever 29. The contact portion 37 approaches the contact portion 38 from the direction a, as shown in FIG.

Subsequently, as shown in FIG. 4, the contact portion 37 passes through the side of the tip end portion 28a of the lock lever 28 in the direction of arrow a, and as shown in FIG.
Kick in the direction of arrow a. Therefore, as shown in FIG.
The lock release lever 29 is rotated in the direction of arrow h against the spring 32.

Then, as shown in FIG. 5, at the moment when the contact portion 37 passes the side of the tip portion 28a of the lock lever 28 in the direction of arrow a, the lock lever 28 is moved from the unlocked position of FIG. 1 is rotated in the direction of the arrow f to the lock position of FIG. 1, the tip end portion 28a thereof enters the contact portion 37 in the direction of the arrow b, and the lock lever 28 locks the locked pin 10 automatically quickly and surely. .

At this time, as shown in FIG. 4, when the contact portion 37 is brought into contact with the contact portion 38 in the direction of the arrow a, both contact portions 37, 38 are within substantially the diameter of the locked pin 10. Since the lock pin 28 is configured to be housed, as shown in FIG. 5, the abutting portion 37 only rotates the lock release lever 29 in the direction of the arrow h by an extremely small angle θ ₂ , and the lock lever 28 moves the locked pin 10 to the locked pin 10. The lock mechanism can be reliably locked, and the space of the lock mechanism 11 can be saved.

Next, when the disc tray 4 is ejected, the plunger solenoid 34 is energized by a command from the host computer, or the operator pushes the eject button 12 with a finger, as shown in FIG. As shown, the eject switch 40 is turned on and the plunger solenoid 34 is energized.

Then, as shown in FIGS. 2 and 4, the plunger 34a of the plunger solenoid 34 is moved to the arrow i.
Is sucked in the direction, the lock lever 28 is rotated in the direction of the arrow e against the spring 32, and the lock release lever 2
9 is rotated by the spring 32 in the direction of arrow g.

At this moment, the locked pin 10 is unlocked, and at the same time, the abutting portion 38 of the unlock lever 29 pushes the locked pin 10 in the direction of arrow b.

Therefore, the disc tray 4 is soft ejected toward the outside of the disc apparatus main body 1 in the direction of the arrow b by the spring force of both the above-mentioned pair of left and right ejecting springs 24 and the spring 32.

On the other hand, at this time, as shown by the solid line in FIG. 8B, the eject end detection switch 42 is turned on by the free end 28b of the lock lever 28 rotated in the direction of arrow e.
After 1 second to 2 seconds, the plunger solenoid 3
The power to 4 is automatically cut off.

Next, as shown in FIG. 1, with the disc tray 4 locked at the loading position, an emergency eject for manually ejecting the disc tray 4 in an emergency such as a power failure or an electric system failure. At times, as shown in FIG. 7, by inserting the pin-shaped member 44 into the pin insertion hole 13 of the front panel 2 from the direction of arrow j,
The pin receiving plate 43 is pushed in the direction of arrow j.

Then, the lock lever 28 is rotated in the direction of arrow e against the spring 32 from the lock position of FIG. 1 to the lock release position of FIG. 2, and the locked pin 10 is unlocked and locked as described above. The release lever 29 automatically ejects the locked pin 10 in the direction of the arrow b by the pop-up operation, and the emergency eject operation of the disc tray 4 can be performed.

At this time, the emergency eject mechanism is constituted by a very simple structure in which the lock lever 28 is directly rotated by the pin-shaped member 44 in the direction of arrow e. The pin insertion hole 13 may be provided in the decorative plate 9 of the disc tray 4 depending on the case.

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. Further, the present invention is not limited to the CD-ROM drive shown in the above embodiment, but can be applied to a CD player and various other disc devices.

[0051]

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

According to a first aspect of the present invention, a disk device for manually loading and ejecting the disk tray is provided. Therefore, the loading and ejecting operations can be performed quickly, and a DC motor for loading and ejecting the disk tray is not used. Since it is good, the structure is simple and the cost can be greatly reduced.

According to a first aspect of the present invention, there is provided a disk device for manually loading and ejecting the disk tray, and a lock mechanism for locking the disk tray in a loading state is provided with an electromagnetic means for unlocking,
Since the eject spring for the disc tray is provided, the disc tray can be automatically soft ejected by the eject spring by energizing the electromagnetic means by a command of the host computer, etc., and the disc tray can be loaded and ejected by the DC motor. It can exhibit the same function as the disk device.

According to the second aspect of the present invention, since the electromagnetic means can be energized by pressing the eject button and operating the eject switch, the disk tray can be soft-ejected by the manual operation of the operator.

According to the third aspect of the present invention, the emergency eject can be performed by directly unlocking the lock lever of the lock mechanism by the pin-shaped member inserted from the pin insertion hole formed in the disc device main body or the disc tray. The emergency eject mechanism can be very simple.

According to a fourth aspect of the present invention, the lock lever and the lock release lever are arranged so as to abut each other by the urging means.
Since the locked pin is locked by the lock lever by kicking the lock release lever with the locked pin of the loaded disc tray, the locking operation at the loading position of the disc tray can be performed quickly and reliably.

According to a fifth aspect of the present invention, when the loaded disk tray is locked, when the abutment portions of the lock release lever and the locked pin are brought into abutment with each other, these abutment portions are set to have a diameter substantially within the locked pin. Since it can be housed in the lock pin, the rotation angle of the lock release lever when the locked pin is locked can be made very small, and the space of the lock mechanism can be saved.

According to the sixth aspect of the present invention, when the disc tray is ejected, the unlocking state of the lock mechanism is detected by the eject completion detecting switch, and the power supply to the electromagnetic means is automatically cut off. .

[Brief description of drawings]

FIG. 1 is a plan view showing a locked state of a lock mechanism in an eject mechanism of a disk device which is an embodiment of the present invention.

FIG. 2 is a plan view showing an unlocked state of the lock mechanism of the above.

FIG. 3 is a plan view showing a direction in which an abutting portion of a locked pin abuts an abutting portion of a lock release lever.

FIG. 4 is a plan view showing the moment when the contact portion of the locked pin contacts the contact portion of the lock release lever.

FIG. 5 is a plan view at the moment when the contact portion of the locked pin kicks the contact portion of the lock release lever.

FIG. 6 is a perspective view showing a contact portion between a locked pin and a lock release lever.

FIG. 7 is a partially cutaway plan view showing an emergency eject mechanism.

8A is a plan view showing an eject button and an eject switch, and FIG. 8B is a plan view showing a lock lever and an ejection completion detection switch.

FIG. 9 is an exploded perspective view illustrating the outline of the entire disc device.

FIG. 10 is a schematic side view illustrating the outline of the loading and ejecting mechanism.

[Explanation of symbols]

 1 Disc Device Main Body 2 Front Panel of Disc Device Main Body 3 Tray Insertion Port 4 Disc Tray 5 Disc Placement Part 6 Disc 10 Locked Pin 11 Lock Mechanism 12 Eject Button 13 Pin Insertion Hole 17 Loading and Ejecting Mechanism 24 Ejection Spring 28 Lock lever 28a Lock lever tip 29 Lock release lever 29a Lock release lever tip 32 Ejection combined spring (biasing means) 34 Plunger solenoid (electromagnetic means) 37 Locked pin abutment 38 Lock release lever contact Contact part 40 Eject switch 42 Eject completion detection switch 43 Pin receiving plate 44 Pin-shaped member

Claims (6)

[Claims] 1. A disc device configured to mount a recording and / or reproducing disc on a disc tray and manually load and eject the disc in the disc device body. A lock mechanism for locking the disc tray loaded in the disc device body, electromagnetic means for unlocking the lock mechanism, and ejecting the unlocked disc tray to the outside of the disc device body. An eject mechanism of a disk device including an eject spring. 2. An eject mechanism for a disk device according to claim 1, further comprising an eject button and an eject switch operated by the eject button to energize the electromagnetic means. 3. The ejector for a disc device according to claim 1, wherein an emergency eject pin insertion hole facing the lock lever of the lock mechanism is formed in the disc device main body or the disc tray. mechanism. 4. The lock mechanism comprises a lock lever and a lock release lever, which are abutted against each other by an urging means, and the lock release lever is kicked by a locked pin provided on the disc tray to thereby lock the lock lever and the lock release lever. 2. The eject mechanism of the disk device according to claim 1, wherein the lock pin is configured to be locked by the lock lever. 5. The mutual abutment portion of the lock release lever and the locked pin is configured to be housed within substantially the diameter of the locked pin when these abut each other. The eject mechanism of the disk device according to claim 4, wherein 6. The eject mechanism for a disk drive according to claim 1, further comprising an eject completion detecting switch for detecting an unlocked state of the lock mechanism and cutting off the power supply to the electromagnetic means.