JP2002140855A - Disk unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a disk which has been rotating at high speed from keeping its rotation by inertia also at the time of ejection. SOLUTION: A CD-ROM drive apparatus 11 is provided with a tray 12 for receiving a disk as a recording medium in a freely slidable way in the longitudinal direction (direction A and B). On the lower surface of the front side of a top plate 19, a pair of damping members 13 is provided. When the tray 12 is ejected in the direction A and an operator pulls the front bezel 15 of the tray 12 in the direction A, the upper surface of a disk DA comes in sliding contact with a pair of the damping members 13. Hence, the rotation of the disk DA is braked by friction with the damping member 13 in the ejection process of the tray 12, and the disk DA is drawn out to the disk exchange position with the tray 12 while being brought into a stopped state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device, and more particularly, to a disk device configured to read information recorded on a recording surface of a disk by rotating a disk mounted on a tray at a high speed.

[0002]

2. Description of the Related Art For example, a compact disk reproduced by a laser pickup is used as a storage medium for storing information such as a database and software. For this reason, a built-in CD-ROM drive device built in the housing of a notebook computer has been developed so that it can be incorporated into a miniaturized notebook computer or the like.

FIG. 9 is a plan view showing an example of a built-in CD-ROM drive as a conventional disk drive.

In this type of device, a disk (not shown)
Is slidably provided in the front-rear direction (A and B directions), and the tray 1 is slid by manual operation. Below the opening 1a of the tray 1, a turntable 2 that clamps the disk and is driven to rotate by a spindle motor (not shown), and a pickup unit 3 that optically detects information recorded on the disk Is attached.

The eject mechanism incorporated in the conventional apparatus is configured to perform an eject operation by pressing an eject button 4 provided on the front bezel 1b of the tray 1.
When the tray 1 is mounted, a locking lever 5 supported on the lower surface of the tray 1 is locked by a pin 6 provided on a chassis 10.

The locking lever 5 is formed in an L-shape.
One end has a hook-shaped locking portion 5a for locking the pin 6, and the other end has a contact portion 5b that contacts the eject button 4. The locking lever 5 is rotatably supported by a shaft 5c, and is urged by a coil spring 7 in a clockwise direction, that is, a direction for locking the pin 6.

Further, a pressing mechanism for pressing the tray 1 in the direction A is provided at the rear of the tray 1. This pressing mechanism is used to easily pull out the tray 1.
Is moved in the direction A by a predetermined distance, and the pressing lever 8 slidably attached to the protrusion 1c protruding from the lower surface of the tray 1 is urged in the direction B by the coil spring 9. .

In the pressing mechanism, the end 8a of the pressing lever 8 is attached to the chassis 1 in the process of mounting the tray 1 in the apparatus.
0, the coil spring 9 is relatively pulled by the projecting length of the end 8a projecting rearward of the tray 1 by the mounting operation of the tray 1.

[0009] As shown in FIG.
Is pressed, the lock lever 5 rotates in the lock release direction (counterclockwise) to release the lock of the pin 6 implanted on the chassis 10 below the tray 1. As described above, when the locking lever 5 is released by the pressing operation of the eject button 4, the pressing lever 8 urged by the coil spring 9 presses the rear inner wall 10 a of the chassis 10. The tray 1 is pushed out in the ejection direction (A direction).

As shown in FIG. 11, the tray 1 is moved from the front bezel 1b to the chassis 10 by the ejecting operation.
And the tray 1 is pushed out to the extent that the tray 1 can be pulled out. Thereafter, the operator pulls out the tray 1 to a predetermined disk replacement position where the mounted disk is exposed, and performs disk replacement.

In the conventional built-in CD-ROM drive constructed as described above, when the eject button 4 is pressed, the power supply to the spindle motor for driving the disk is stopped. However, the rotor of the turntable and the motor are rotated by inertia. Therefore, in the conventional apparatus, the spindle motor for driving the disk is braked by the back electromotive force to stop the turntable on which the disk is mounted. Then, the disk is ejected in a state where the rotation due to inertia is stopped.

However, in the built-in CD-ROM drive, in order to increase the reading speed of information,
Increasing the rotational speed of the disk by a factor of six or eight is being pursued. When the rotation speed of the disk is increased six times or eight times as described above, the time required for the disk to stop at the time of ejection becomes longer. Therefore, when the ejection button 4 is pressed after the reading of the information recorded on the disc is completed, the tray 1 is moved in the ejecting direction before the disc stops, and the disc is ejected while being rotated by inertia. The problem arises. Therefore, an object of the present invention is to provide a disk device that solves the above-mentioned problems.

[0012]

In order to solve the above problems, the present invention has the following features.

The present invention provides a mounting device for reading information stored on a disk as a recording medium, a tray movably provided between an exchange position for exchanging the disk, and the disk provided on the tray. And a read head for reading information stored in the disk by rotating the disk held by the disk holding and rotating means at a mounting position to read information stored in the disk. A pushing mechanism that pushes the tray by a predetermined distance from the mounting position to the replacing position at the time of ejection, and a moving path along which the disc mounted on the tray moves, and the tray is replaced from the mounting position by the pressing mechanism. After the tray is pushed out to the position by a predetermined distance, the tray moves further toward the replacement position. In is characterized in that and a braking member arranged at a position in contact with the disk.

Therefore, according to the present invention, after the tray is pushed out of the mounting position to the replacement position by a predetermined distance by the pressing mechanism, the brake member contacts the disk in the process of further moving the tray toward the replacement position. Therefore, even if the disk is driven at high speed to read the information recorded on the disk at high speed, the rotation of the disk is stopped in the process of the operator manually pulling out the tray, and the tray moves to the replacement position. It can be safely removed with the disk stopped before.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the appearance of a CD-ROM drive as an embodiment of a disk drive according to the present invention.

The CD-ROM drive device 11 (hereinafter, referred to as "device") is a built-in device built in the housing of a notebook personal computer (not shown).

In this apparatus 11, a tray 12 for inserting a disk DA (indicated by a dashed line) as a recording medium is slidably provided in the front-rear direction (A and B directions). When the disc is loaded, the tray 12 slides in the direction B and is locked in a state of being stored in the apparatus 11. Also,
The front bezel 15 of the tray 12 is provided with a rectangular mounting hole 15a extending in the lateral direction.

Reference numeral 14 denotes an eject operation knob, which is slidably mounted along the mounting hole 15a of the front bezel 15 of the tray 12. This eject operation knob 1
4 is normally urged in the D direction, and is slid in the C direction when the tray 12 is ejected.

Since the eject operation knob 14 is slidably operated, it is assumed that the operator accidentally touches the eject operation knob 14 when operating a keyboard (not shown) of a notebook computer. Also, the eject operation knob 14 cannot be slid in the C direction, and the tray 12 cannot be ejected.

A pair of braking members 13 (shown by broken lines) that slide on the label-side upper surface (non-recording surface) of the disk DA during the ejecting operation to brake the disk DA are provided on the front lower surface of the top plate 19 that covers the upper portion of the tray 12. ) Is provided. The braking member 13 is made of a soft material such as felt or sponge, and does not damage the surface of the disk DA. The braking member 13 is formed so as to extend in the left and right directions (C and D directions) orthogonal to the ejection direction (A direction) of the disk DA, and has a sufficient contact area for braking the disk DA. Is secured.

Then, as described later, the eject operation knob 14 is slid in the direction C to eject the tray 12 in the direction A, and the operator operates the front bezel 15 of the tray 12.
Is pulled in the direction A, so that the upper surface of the disk DA slides on the pair of braking members 13. Therefore, the rotation of the disk DA during the ejecting operation of the tray 12 causes the braking member 13 to rotate.
The disc DA is pulled out together with the tray 12 to the disc replacement position in a stopped state.

FIG. 2 is an exploded perspective view showing the configuration of the CD-ROM drive device 11.

The CD-ROM drive device 11 includes the tray 12, a drive unit 16 fixed to the lower surface of the tray 12, a tray guide mechanism 17 for guiding the sliding operation of the tray 12, and a chassis for supporting the tray 12. 18
And a top plate 19 fixed to the chassis 18 so as to cover the upper part of the mounted tray 12. A pair of braking members 13 (shown by broken lines) that are in sliding contact with the upper surface of the disk DA during the ejecting operation are fixed to the lower surface on the front side of the top plate 19.

The tray 12 is formed to have a width smaller than the outer diameter of the disk so that a part of the disk (not shown) protrudes from the tray 12, and is slid in the A and B directions by manual operation. Then, it reaches the disk replacement position or the disk mounting position. For this reason, the apparatus 11 is not provided with a drive mechanism (comprising a motor and a transmission mechanism) for driving the tray 12 in the A and B directions, and the number of parts is reduced by that amount, so that the size and the size are reduced. The thickness has been reduced.

At the front of the lower surface of the tray 12, there is provided an eject mechanism 20 which is operated by sliding operation of the eject operation knob 14, and at the rear of the lower surface of the tray 12, the tray 12 is moved in the ejecting direction (A direction). A pressing mechanism 21 for pressing is provided.

The drive unit 16 includes a base 22 fixed to the lower surface of the tray 12, a pickup unit 23 attached to the base 22, a pickup drive unit 24 for moving the pickup unit 23 in the disk radial direction,
A turntable 26 rotated by a spindle motor 25, a pickup unit 23 and a spindle motor 2
5 and a flexible wiring board 28 for connecting to the substrate 27.

The tray guide mechanism 17 includes the tray 12
Slide rails 31 and 32 slidably engaged with engagement portions 29 and 30 provided on both side surfaces of the chassis, and a guide member fixed to the inner side wall of the chassis 18 and slidably holding the slide rails 31 and 32. 33 and 34.

The tray guide mechanism 17 is provided for the tray 12
Is pulled out in the direction A and the slide rails 31, 3
2 also slides in the same direction. Therefore, the tray 12 pulled out by the ejecting operation is
The slider slides to the eject position while being held by the guide members 33 and via the first and second guides.

FIG. 3 is a plan view showing the ejection mechanism 20 and the pressing mechanism 21 in a state where the tray 12 is locked at the mounting position.

When the tray 12 moves to the mounting position after the disk DA is clamped on the turntable 26, the tray 12 is locked at the mounting position in the apparatus. At that time, the disk DA reaches the mounting position through the pair of braking members 13. However, when the disk DA is at the mounting position, the disk DA is separated from the pair of braking members 13, and the pair of braking members 13 does not hinder the reading operation of the pickup unit 23.

The eject mechanism 20 incorporated in the apparatus 11 of this embodiment is configured to perform an eject operation by a slide operation of an eject operation knob 14 provided on the front bezel 15 of the tray 12, and is provided on the lower surface of the tray 12. Locking member 41 slidably supported in the C and D directions
And a coil spring 42 for urging the locking member 41 in the D direction.
And the pins 43 implanted in the chassis 18.

The locking member 41 is engaged with a connecting portion 41a to which the ejecting operation knob 14 is connected and a pair of protrusions 44 protruding from the lower surface of the tray 12 to change the sliding direction (C, D direction). It has a regulated sliding hole 41b, a hook-shaped locking portion 41c locked to the pin 43, and a spring locking portion 41d to which one end of the coil spring 42 is locked. In addition, the coil spring 4
The other end of 2 is a spring retaining portion 45 standing on the chassis 18.
Hanged on.

Therefore, the locking member 41 is slidably supported in directions C and D orthogonal to the moving direction (A and B directions) of the tray 12, and the locking portion 41 c is moved by the spring force of the coil spring 42. It is held at a position where it is locked by the pin 43. Therefore, when the ejecting operation knob 14 is slid in the direction C, the locking member 41 slides in the same direction and reaches the unlocking position where the locking portion 41 c is separated from the pin 43.

Accordingly, the ejection mechanism 20 is
2 is mounted in the apparatus, the locking portion 41c of the locking member 41 supported on the lower surface of the tray 12 is
The tray 12 can be locked at the mounting position by being locked by the pin 43 provided above.

A pressing mechanism 21 for pressing the tray 12 in the ejecting direction (A direction) moves the tray 12 by a predetermined distance in the A direction so that the tray 12 can be easily pulled out to the disk replacement position. The pressing mechanism 21 is configured such that a pressing lever 47 slidably attached to a pair of protrusions 46 protruding from the lower surface of the tray 12 is urged in a direction B by a coil spring 48.

The coil spring 48 has one end hooked to a spring hook 47b at the front end of the pressing lever 47 and the other end hooked to a spring hook pin 49 provided on the lower surface of the tray 12. I have. The coil spring 48 is provided so as to press the tray 12 in an A direction orthogonal to the C and D directions in which the eject operation knob 14 and the locking member 41 slide. Therefore, the eject operation knob 14 and the locking member 41 are attached so as not to be slid by the spring force of the coil spring 48.

When the tray 12 is mounted in the apparatus, the pressing mechanism 21 moves the rear end 4 of the pressing lever 47.
7a contacts the rear inner wall 18a of the chassis 18,
Due to the mounting operation of the tray 12, the coil spring 48 is relatively pulled by the protruding length of the end portion 47a protruding rearward of the tray 12. Therefore, when the tray 12 is mounted in the apparatus, the pressing lever 47 presses the rear inner wall 18a of the chassis 18 by the spring force of the coil spring 48, and presses the tray 12 in the ejecting direction (A direction) by the reaction force. ing.

Here, the operation of the ejection mechanism 20 and the pressing mechanism 21 will be described. FIG. 4 is a plan view showing a state in which the ejecting operation knob 14 is slid, and FIG. 5 is a plan view showing a state in which the tray 12 is pushed out in the ejecting direction.

As shown in FIG. 4, when the ejecting operation knob 14 is slid in the direction C, the locking member 41 also slides in the same direction, and a hook-shaped locking portion 41c is implanted in the chassis 18. The lock is released by separating from the pin 43 that has been set.

As described above, the eject operation knob 14
When the locking member 41 is unlocked by the sliding operation of, the pressing lever 47 of the pressing mechanism 21 presses the rear inner wall 18a of the chassis 18 by the spring force of the coil spring 48, and the tray 12 is ejected by the reaction force. It is extruded in the direction (A direction).

The tray 12 is moved by the above-described ejecting operation.
The front bezel 15 slides to a position separated from the chassis 10 by a predetermined distance L. Thereby, the tray 12 is pushed out to the extent that the operator can pull it out. At this time, the disk DA has not yet slidably contacted the pair of braking members 13 provided on the lower surface of the top plate 19.

As shown in FIG. 5, when the hand is released from the eject operation knob 14, the eject operation knob 1 is released.
4 and the locking member 41 return in the D direction by the spring force of the coil spring 42. Therefore, when the front bezel 15 of the tray 12 is pressed in the direction B after the disk replacement,
The inclined portion of the hook-shaped engaging portion 41c of the engaging member 41 slides in the C direction by sliding on the pin 43 provided on the chassis 18, and returns to the D direction again when the inclined portion passes through the pin 43. be able to.

FIG. 6 is a plan view showing the process of pulling out the tray 12, FIG. 7 is a longitudinal sectional view taken along the line VII-VII in FIG. 6, and FIG. 8 is a plan view showing a state where the tray 12 is pulled out to the disk replacement position. FIG.

As shown in FIG. 6, after the eject operation, the operator grips the front bezel 15 protruding from the chassis 18 and pulls it in the direction A, so that the tray 12 supports the slide rails 31, 32 along with the sliding operation of the guide member 3 via the slide rails 31 and 32.
It slides while being held by 3,34.

As shown in FIG. 7, the disk DA slides on a pair of braking members 13 provided on the lower surface of the top plate 19 by the sliding operation of the tray 12. Therefore, the disk DA, which has been rotated by inertia, is braked by its upper surface slidingly contacting the pair of braking members 13. Then, the rotation of the disk DA is stopped by friction with the pair of braking members 13.

Accordingly, after the tray 12 is pushed out from the mounting position to the replacement position by a predetermined distance by the pressing mechanism 21, the tray DA contacts the disk DA while the tray 12 moves further toward the replacement position. Even when the disk DA is driven at a high speed to read the information recorded at a high speed, the rotation of the disk DA is stopped in the process of the operator pulling out the tray 12 manually, and the tray 12 moves to the exchange position. The disk DA can be safely removed with the disk DA stopped before.

As described above, in the present embodiment, the pair of braking members 13 do not slide on the disk DA during the process in which the tray 12 is pushed out from the mounting position to the replacement position by a predetermined distance by the pressing mechanism 21. 12 is pulled out by manual operation, the pair of braking members 13
By sliding on the pair, the wear of the pair of braking members 13 can be reduced and the life of the pair of braking members 13 can be extended.

As shown in FIG. 8, the tray 12 has reached the disk replacement position where the entire disk mounted on the turntable 26 is exposed, and the disk DA passing through the pair of braking members 13 has stopped rotating. Ejected in state. Thus, the disk DA mounted on the tray 12 can be easily removed, and the disk can be replaced.

After the disk is replaced, the front bezel 15 of the tray 12 is pressed in the direction B, so that the inclined portion of the hook-shaped engaging portion 41c of the engaging member 41 is
8, slides in the direction C by sliding on the pin 43 provided on
When the inclined portion passes through the pin 43, it returns to the direction D again, so that the locking portion 41c of the locking member 41 is locked to the pin 43. Therefore, the tray 12 returns to the original mounting position shown in FIG. 3 and is locked at the mounting position. It should be noted that the present invention is not limited to the CD-ROM drive device as in the above embodiment, but may be applied to other disk-shaped recording media, for example, CD, magnetic disk, magneto-optical disk, and optical disk.
The same applies.

Also, the disk device of the present invention has been described as an example in which the disk device is housed in the housing of a notebook type personal computer. However, the present invention is not limited to this. Can also be applied to an apparatus configured to be used as a separate external device.

In the above-described embodiment, the upper surface of the disk DA is brought into contact with the braking member 1 during the process of manually pulling out the tray 12.
The configuration in the case where the rotation of the disk DA is braked by sliding contact with the disk 3 has been described.
Needless to say, the brake member may slide on the peripheral edge of the disk DA in the process of manually pulling out the disk 2 to brake the rotation of the disk DA.

[0052]

As described above, according to the present invention, after the tray is pushed out of the mounting position to the replacement position by a predetermined distance by the pressing mechanism, the braking member is moved in the process of further moving the tray toward the replacement position. Contacts the disc, so even if the disc is driven at high speed to read the information recorded on the disc at high speed, the operator stops the disc rotation during the process of manually pulling out the tray and replaces the tray. The disc can be safely removed in a stopped state before moving to the position. Further, the brake member slides on the disk while the tray is manually pulled out, so that the wear of the brake member can be reduced and the life can be extended.

[Brief description of the drawings]

FIG. 1 is a perspective view of a CD-ROM drive device as one embodiment of a disk device according to the present invention.

FIG. 2 is an exploded perspective view of the CD-ROM drive device.

FIG. 3 is a plan view showing a state where the tray is mounted in the apparatus.

FIG. 4 is a plan view for explaining an operation by an eject operation.

FIG. 5 is a plan view showing a state in which an ejection operation knob after an ejection operation is returned.

FIG. 6 is a plan view showing a process of pulling out a tray.

7 is a longitudinal sectional view taken along the line VII-VII in FIG.

FIG. 8 is a plan view showing a state where the tray is pulled out to a disk replacement position.

FIG. 9 is a plan view showing an example of a conventional built-in type CD-ROM drive device.

FIG. 10 is a plan view for explaining an ejection operation of a conventional ejection mechanism.

FIG. 11 is a plan view for explaining the ejecting operation of the conventional ejecting mechanism, following FIG.

[Explanation of symbols]

 Reference Signs List 11 CD-ROM drive device 12 Tray 13 Braking member 14 Eject operation knob 15 Front bezel 16 Drive unit 17 Tray guide mechanism 18 Chassis 19 Top plate 20 Eject mechanism 21 Press mechanism 22 Base 23 Pickup unit 24 Pickup drive unit 25 Spindle motor 26 Turntable 31, 32 Slide rail 33, 34 Guide member 41 Locking member 42 Coil spring 43 Pin 47 Press lever 48 Coil spring

Continued on the front page (72) Inventor Takashi Watanabe 3-7-3 Nakamachi, Musashino-shi, Tokyo F-term in Tac Corporation (reference) 5D046 CB11 CD05 FA20 HA10 5D109 GB02 GB04

Claims (1)

[Claims] 1. A mounting device for reading information stored on a disk as a recording medium, a tray movably provided between an exchange position for exchanging the disk, and a disk provided on the tray for holding the disk A disc holding / rotating means that rotates by rotating the disc held by the disc holding / rotating means at a mounting position to read information stored in the disc; A pushing mechanism that pushes the tray by a predetermined distance from the mounting position to the replacement position, and a moving path along which the disk mounted on the tray moves, wherein the tray is moved from the mounting position to the replacement position by the pressing mechanism. After being pushed out toward the replacement position, the tray is Disk apparatus characterized by comprising: a braking member arranged at a position in contact with the disk, the.