JP2003030941A - Disk drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk drive device capable of sure reproduction. SOLUTION: In order to perform sure reproducing in the disk drive device, a disk loading tray 30 and a reproducing part 4 are integrated into one body, to surely load a disk 1 to the disk drive device. In order to protect a pickup part 50, the pickup part 50 is drawn back to the disk outer periphery difficult to come into contact with. A shutter 12, which covers the drawn-back pickup part 50 and a lens 5a, is provided to protect the lens 5a more surely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive device.

[0002]

2. Description of the Related Art Conventionally, a disc drive device for reproducing (reading) information recorded on a disc-shaped recording medium (disc) is known. The disc drive device has a pickup unit and a reproducing unit including a disc drive unit (motor and turntable). The turntable holding the disc is rotated by the motor, and the pickup unit records information on the disc. It has a structure to read. In addition, the TOC (Table Of Co
ntents) are stored and the disk drive device
Since the operation of reading this information must be started first, in order to perform an efficient operation, the pickup unit is normally set to wait in the innermost direction toward the center when the driving is stopped.

By the way, when loading and replacing a disc in a disc drive device, a tray portion having a disc loading tray is ejected from the inside of the disc drive device main body, and the disc is loaded and exchanged by the disc loading tray. There is a disk drive device. In such a disc drive device, for example, when vibration occurs during use of the disc drive device such as a portable type or an in-vehicle type, when the disc loading tray and the reproducing unit are configured separately, It is desirable that the disc loading tray and the reproducing section are integrally formed, because reproduction failure such as sound skipping may occur due to different vibrations transmitted to the respective members.

[0004]

However, if the disc loading tray and the reproducing unit are integrated, there is a possibility that a hand or a finger may inadvertently contact the pickup unit and the lens.
By touching the pickup part by mistake like this,
There is a problem that the lens may be soiled or damaged.

In view of the above problems, the object of the present invention is to
It is an object of the present invention to provide a disk drive device capable of more reliable reproduction.

[0006]

In order to solve the above problems, a disk drive device according to a first aspect of the present invention is a disk drive device in which a disk loading tray can be stored and ejected in the main body of the device. A pickup unit for reading is provided on the disc loading tray, and the disc loading tray is configured to be ejected from the apparatus main body in a state where the pickup unit is retracted to a predetermined position in the outer peripheral direction from the center of the disc. Is characterized by.

A disk drive apparatus according to a second aspect is
The disk drive device according to claim 1, wherein the pickup portion is covered with a shutter when retracted.

A disk drive device according to a third aspect is
The disk drive apparatus according to claim 1 or 2, wherein the retracting direction of the pickup section is a diagonal direction of the disk loading tray.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk drive device according to an embodiment of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 shows a disk drive device 100 according to a first embodiment of the present invention.
It is a plan view showing a state where the tray portion 100b is discharged from 0a. The disk drive device 100 includes a device body 100a and a tray portion 100b that can be ejected from and stored in the device body 100a. The tray portion 100b includes a tray body 2 and a disc loading tray 3
The reproducing unit 4 and the like are provided, and the tray main body 2 is integrally provided with the disc loading tray 3 and the reproducing unit 4.

The reproducing unit 4 includes a pickup unit 5 required for reproducing the disc 1, a turntable 6, a disc clamp mechanism 7 for holding the disc, and a disc drive device (not shown) for rotating the turntable 6. And so on. The disc 1 is loaded on the disc loading tray 3 via the disc clamp mechanism 7. Therefore, in the disc drive device 100, since the disc loading tray 3 and the reproducing unit 4 are integrated, even when vibration occurs during use of the disc drive device such as a portable type or an in-vehicle type, the Since the vibration is relatively canceled, reproduction failure such as skipping of sound is less likely to occur as compared with the case where the disc loading tray and the reproduction section are formed separately.

The pickup unit 5 is connected to the rack 8, and the power of the pickup unit feed motor 11 is transmitted to the rack 8 via the gears 10a, 10b and the pinion 9 to move the pickup unit 8. To do. In other words, the pickup unit 5 is a rack and pinion (rack
and pinion) slide movement mechanism to move from the center of the disc toward the outer periphery, at which time the information recorded on the disc is read. The rack 8, the pinion 9, the gears 10a and 10b, and the pickup feeding motor 11 shown in FIG.
It cannot be seen because it is at the bottom, but the inside is seen through.

A pickup unit standby position 3b is formed at a corner (corner) on the far right side of the disc loading tray 3, and the pickup unit 5 stands by at the pickup unit standby position 3b. In this way, the disk drive device 1
In order to make it more difficult for a hand or finger to come into contact with the pickup unit 5 or the lens 5a, the 00 picks up the pickup unit in the outer peripheral direction / outer side rather than the pickup unit standby position in the center / inward direction as in the conventional disk drive device. A part standby position 3b is formed and the pickup part 5 is made to stand by there.

Considering that the standby position is located further outside, the retracting direction is preferably the diagonal direction of the disc loading tray 3. Particularly, in the compact disc drive device 100, the width of each of the substantially rectangular disc loading trays 3 is approximately the same as the diameter of the disc 1 (in some cases, the width is smaller than the diameter as shown in FIG. 1). Therefore, when the disc 1 is loaded, a vacant space is generated only in the corner (corner) of the disc loading tray on the diagonal side. There is also a merit that this empty space can be effectively used as the pickup unit standby position 3b.

As described above, in the disc drive device 100 shown in FIG. 1, the pickup portion 5 can be moved to a position where the lens 5a exceeds the outermost circumference of the disc, and the pickup portion 5 can be made to stand by at the pickup portion standby position 3b.
It is possible to further reduce the possibility of accidentally making contact with the lens 5a. Here, the term "exceeding the outermost circumference of the disc" means the point where the outer diameter exceeds 120 mm when the disc 1 is a CD.

The evacuation / standby operation of the pickup section 5 is started when the ejection operation of the tray section 100b of the disk drive device 100 is instructed, and the ejection operation is started only when the pickup section 5 reaches the pickup section standby position 3b. It is preferably started, but if the pickup unit 5 reaches the pickup unit standby position 3b before the disc 1 can be loaded, that is, the tray unit 100b is completely ejected, Instead of starting the discharge operation after reaching the unit standby position 3b,
The ejection operation of the tray section 100b and the retracting / standby operation of the pickup section 5 may be performed at the same time.

Although the rack-and-pinion system is used as the slide feed mechanism of the pickup unit 5 here, it is not particularly limited as long as it can move the pickup unit 5 such as a swing arm system or a linear motor system.

Further, the disc loading tray 3 of the disc drive device 100 shown in FIG. 1 is provided with a notch 3a on the right side thereof, and the disc 1 is located at a position protruding from the left side of the disc loading tray 3. By being loaded, it is easy to grab the loaded disc 1,
The structure is easy to remove.

[Second Embodiment] Next, the pickup unit 5 which stands by at the pickup unit standby position 30b by the reproducing unit 40 (disc loading tray 30) shown in FIGS.
A disk drive device according to a second embodiment of the present invention will be described in which a shutter mechanism for covering the lens 0 and the lens 5a with the shutter 12 is provided. A pickup unit standby position 30b is formed in the disc loading tray 30 that is integrally provided in the reproducing unit 40 of the disc drive device according to the second embodiment of the present invention, and the shutter 12 and the shutter 12 are provided near the pickup unit standby position 30b. , The elastic member 13,
Is provided.

That is, even when the pickup unit 5 stands by so as to retract to the outer peripheral direction / outside like the disc drive device 100 according to the first embodiment, for example, the disc drive device is mounted on a vehicle. When used as, since mistakes are more likely to occur than when operating the home audio, there is a possibility that the pickup unit 5 or the lens 5a may be accidentally touched. Therefore, as shown in FIGS. 2 to 4, in order to protect the pickup unit 50, particularly the lens 5a, the shutter 12 that covers the lens 5a of the pickup unit 50 during standby is provided.

In the reproducing section 40 of the disk drive device according to the second embodiment of the present invention, only the parts and members different from those of the disk drive device 10 according to the first embodiment of the present invention will be described, and other parts will be described. The same reference numerals are used for the members, and the description of their functions is omitted.

The shutter 12 is arranged in parallel with the disc loading tray and is supported rotatably about a shutter pivot shaft 12a provided on the disc loading tray, and one end of which is a coil fixed to the disc loading tray. It is fixed to a telescopic member 13 composed of a spring. During playback of the disc, even if the outermost circumference of the disc is being played, the lens 5 of the pickup unit 50
The elastic member 13 is pulled in a certain direction so as not to cover a. In this state, the elastic member 13 is in a contracted state, and the elastic member 13 is in a stable state. Further, the shutter 12 is provided with a protrusion 12b protruding toward the disc loading tray 30 at an end opposite to the end to which the elastic member 13 is attached with the shutter rotation shaft 12a interposed therebetween. The portion 12b comes into contact with a shutter contact portion 50b provided so as to project from the end of the pickup portion 50 on the shutter 12 side when the pickup portion 50 moves in the outer peripheral direction of the disc.

That is, when the ejecting operation of the tray portion of the disc drive device is instructed, the pickup portion 50 starts moving to the pickup portion standby position 30b, and the shutter contact portion 50b of the pickup portion 50 when it exceeds the outermost circumference of the disc. Contact the projection 12 b of the shutter 12. Further, the pickup section 50 continues to move toward the pickup section standby position 30b, and the shutter 11 continues to be pushed accordingly. Therefore, the shutter 11 rotates around the shutter rotation shaft 12a while extending the elastic member 13, and the pickup section moves. When 50 reaches the standby position 30b, the shutter 12 completely covers the lens 5a. FIG. 4 shows this state.

Next, the disk 1 is added to the disk drive device.
Is loaded and a reproducing operation is instructed, the pickup unit 50 moves toward the innermost circumference for initial initialization. Then, the shutter contact portion 50b of the pickup unit 50 releases the contact with the protrusion 12b of the shutter 12, and the shutter 12 is pulled by the contraction of the elastic member 13, and the shutter 12 is in the shutter standby position that does not interfere with the reproducing operation. Return to.

As described above, since the lens 5a of the pickup unit 50 is covered by the shutter 12 when the tray unit is ejected, the finger or the like does not come into contact with it. Also, if the shutter 12 is made of metal and is electrically connected to GND (ground), the shutter 12 becomes a lightning rod when a person's finger charged with static electricity approaches, and the semiconductor laser or photodiode of the pickup unit 50 immediately below is It is possible to obtain an effect that it is not necessary to destroy an element (not shown) that is sensitive to static electricity.

The elastic member 13 pulls and holds the shutter 12 during disk reproduction at the shutter standby position so as not to cover the lens 5a of the pickup unit 50, and the pickup unit 50 holds the pickup unit standby position 30.
The shape and the material are not particularly limited as long as the shape is expanded when reaching b and the shutter 12 can move to a position that covers the pickup unit 50 and the lens 5a.
For example, it may be a coil-shaped spring made of metal or synthetic resin, a bent spring, or a rubber-like elastic material made of synthetic resin or natural material that can be restored after elastic extension and deformation.

Further, in the present embodiment, the shutter 12 is provided with the shutter rotating shaft 12a to perform the rotating operation, but the operation is not particularly limited as long as it is the opening / closing operation for the pickup unit 50 and the lens 5a. Instead, for example, the shutter may be slid in the horizontal direction.

In the disc drive device according to the present invention, the disc can be reliably loaded in the reproducing part without damaging the pickup part, and since the reproducing part is integrated with the disc loading tray, vibration from the outside is offset, so that the reproduction is defective. Is hard to cause.

According to the present invention, more reliable reproduction can be performed.

[Brief description of drawings]

FIG. 1 is a plan view of a disk drive device according to a first example of the present embodiment.

FIG. 2 is a plan view of a reproducing section of a disc drive apparatus according to a second example of the present embodiment, showing a state where the pickup section is at the innermost position.

FIG. 3 is a plan view of a reproducing unit of a disk drive device according to a second example of the present embodiment, showing a pickup position at the time of outermost reproduction.

FIG. 4 is a plan view of a reproducing section of a disc drive apparatus according to a second example of the present embodiment, showing a state in which a pickup section is at a pickup standby position.

[Explanation of symbols]

1 disc (corresponding to disc) 2 tray body 3 Disc loading tray 3a Notch 4 playback section 5 Pickup part 5a lens 6 turntable 7 Disc clamp mechanism 8 racks 9 pinion 10a gear 10b gear 11 Pickup part feed motor 12 shutters 12a Shutter rotation axis 12b protrusion 13 Elastic member 30 Disc Loading Tray of Second Embodiment 30b Pickup unit standby position 40 Playback Unit of Second Embodiment 50 Pickup Unit of Second Embodiment 50b Shutter contact part 100 Disk Drive Device of First Embodiment 100a Device main body according to first embodiment 100b Tray unit of the first embodiment

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G11B 25/04 101 G11B 25/04 101A

Claims (3)

[Claims] 1. A disc loading tray is housed in the main body of the apparatus.
In an ejectable disc drive device, a pickup unit for reading information recorded on a disc is provided on the disc loading tray, and the disc loading tray is in a state in which the pickup unit is retracted to a predetermined position in the outer peripheral direction from the center of the disc. The disk drive device is configured to be ejected from the device body. 2. The disk drive device according to claim 1, wherein the pickup unit is covered by a shutter when retracted. 3. The disc drive device according to claim 1, wherein the retracting direction of the pickup unit is a diagonal direction of the disc loading tray.