WO2009084094A1

WO2009084094A1 - Disk device

Info

Publication number: WO2009084094A1
Application number: PCT/JP2007/075194
Authority: WO
Inventors: Katsuhiro Onodera
Original assignee: Pioneer Corporation
Priority date: 2007-12-27
Filing date: 2007-12-27
Publication date: 2009-07-09
Also published as: JPWO2009084094A1; JP4848459B2

Abstract

A hole part (526) having an opening face (526A) crossing a rotational direction (A) of an optical disk (200) is arranged at a right front edge part (52) of a disk tray (50) of a disk drive. Thus, a flow (B) of air caused with rotation of the optical disk (200) can be taken into the right front edge part (52). Consequently, a local rise of pressure of the disk drive (100), which occurs by a stop of the flow (B) of air, can be suppressed. Thus, wind noise can be reduced.

Description

Disk unit

The present invention relates to a disk device.

Conventionally, a configuration is known in which a recording medium is placed on a tray and conveyed into a case body (see, for example, Patent Document 1 and Patent Document 2).

The one described in Patent Document 1 includes a planar area parallel to the disk-shaped recording medium and a plate-shaped cylindrical area that covers the outer periphery of the disk-shaped recording medium as a tray. And the edge part of the side close | similar to a plane area | region among the circumferential edge parts of a cylindrical area | region is formed in a non-acute angle, and it is set as the wind noise reduction member. Further, a groove-like portion composed of a plurality of irregular grooves is provided in the cylindrical region to form a wind noise reduction member.
The wind noise reduction member is used to prevent wind noise generated from the air current accompanying high-speed rotation of the disk-shaped recording medium.

The one described in Patent Document 2 includes a disk transfer member serving as a tray, a disk placement portion, a first penetration portion through which laser light from an optical pickup penetrates, and a first penetration behind the disk placement portion. A second penetrating portion located upstream of the portion in the disc rotation direction.
Then, using the shearing force and the pressure difference when the induced flow caused by the rotating disk passes, a suction flow from the lower side of the disk transfer member is generated through the second through portion. The structure which accelerates | stimulates the thermal radiation of an optical pick-up by such ventilation is taken.

JP 2002-93138 A JP 2007-102884 A

However, in the configurations such as Patent Document 1 and Patent Document 2 described above, as shown in FIG. 1, the air flow accompanying the high-speed rotation of the disk causes a local pressure increase in the disk device. The problem of increasing wind noise is an example.

In other words, the disk drive 800 is provided with a disk tray 820 that is movable in and out of the case body 810.
The disc tray 820 includes a peripheral portion 822 provided on the periphery of the mounting surface 821 on which the optical disc 200 is placed, and a front plate 826 that covers the front surface of the disc tray 820.
The peripheral portion 822 includes a peripheral surface 823 provided substantially parallel to the mounting surface 821 at a position above the mounting surface 821. In addition, a vertical wall portion 824 that extends substantially vertically downward is provided at the end of the peripheral surface 823.
A gap 825 extending in the longitudinal direction of the disc tray 820 is formed between the vertical wall portion 824 and the case body 810.

In such a disk drive 800, when the optical disk 200 is rotated in the rotation direction A, an air flow X is generated. The air flow X enters the gap 825 and collides with the front plate 826. Then, the gap 825 and the pressure in the vicinity thereof increase.
The local pressure difference in the disk drive 800 generated in this way is an example of a factor that increases the noise generated by the high-speed rotation of the optical disk 200.

In view of such problems, an object of the present invention is to provide a disk device that suppresses a local pressure increase and reduces wind noise.

The disk device of the present invention is a disk device comprising a case body, a disk processing unit that is provided in the case body and processes a disk-shaped recording medium, and a tray on which the recording medium is placed, The disk processing unit includes a rotation driving unit that rotates the recording medium in one direction, and the tray is provided on the mounting surface on which the recording medium is mounted and the periphery of the mounting surface. A peripheral portion provided in a state of projecting to one surface side of the surface, and a hole portion having an opening surface provided at the peripheral portion and intersecting the rotation direction of the recording medium.

It is a top view which shows schematic structure of the conventional disk drive. 1 is an exploded perspective view showing a configuration of a disk drive according to an embodiment of the present invention. It is a top view which shows the disc tray in the said embodiment. It is a perspective view which shows the disc tray in the said embodiment. It is a perspective view which shows the disc tray in the said embodiment. It is explanatory drawing which shows the test method in the Example of this invention. It is explanatory drawing which shows the measurement result in the said Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Case body 20 ... Main-body part as a disk processing part 25 ... Disk rotation drive means as a rotation drive part 30 ... Process moving means as a pick-up guide apparatus 42 ... Pick-up 50 ... Disc tray as a tray 51 ... Mounting surface 52 ... Right front peripheral part constituting peripheral edge and one edge peripheral part 53 ... Left front peripheral part constituting peripheral part and one edge peripheral part 54 ... Left rear peripheral part constituting peripheral part and other peripheral peripheral part 55 ... Rim part and Right rear peripheral edge constituting the peripheral edge of the other edge 58 ... Notch part 100 ... Disk drive as a disk device 200 ... Optical disk as a

recording medium

523, 533 ... Recessed

part

524, 534 ...

Guide surface

526, 546 ... Hole 526A, 536A , 546A ... Opening surface 536 ... Anti-hole part

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In this embodiment, a disk drive as a disk device, which is a processing device for recording and reading information on an optical disk as a disk-shaped recording medium, will be described as an example. It should be noted that, for example, a playback device, a recording device, a game machine, or the like that has a portable disk device or a disk drive and performs processing for recording and playback of video data, etc. Any disk device that records or reads various information on any recording medium such as a disk can be targeted. Examples of the recording medium include CD (Compact Disc), DVD (Digital Versatile Disc), BD (Blu-ray Disc), HD-DVD (High Definition DVD), and the like.

[Disk Drive Configuration]
FIG. 2 is an exploded perspective view showing the configuration of the disk drive of the present embodiment. FIG. 3 is a plan view showing the disc tray. 4 and 5 are perspective views showing the disc tray as seen from different directions.

In FIG. 2, 100 is a disk drive. The disk drive 100 has a metal case body 10. The case body 10 includes an upper case 11 having a lower surface and a front surface that open over two surfaces, a lower case 12 that closes the lower surface of the upper case 11, and a decorative plate 13 that closes the front surface of the upper case 11. is doing. Further, the decorative plate 13 is formed with an opening 13a.

The case body 10 includes a chassis 15 made of synthetic resin. The chassis 15 forms a case body 10 with the upper case 11, the lower case 12 and the decorative plate 13. Moreover, these structures define the accommodation space 18 inside. The chassis 15 is formed in a substantially rectangular frame shape as shown in FIG.

The chassis 15 is provided with a main body 20 as a disk processing unit.
The main body 20 has a pedestal 21 formed in, for example, a metal flat frame shape. The pedestal portion 21 is attached to the chassis 15 by screwing the other edge so that one edge is rotatable in the vertical direction. On one edge of the pedestal portion 21, a rotation guide portion 22 that guides rotation about the other edge of the pedestal portion 21 is integrally attached.

Further, the pedestal portion 21 is provided with a disk rotation drive means 25 as a rotation drive section that is positioned on one rotating edge and rotates the optical disk 200 in the rotation direction A (see FIG. 3). The disk rotation driving means 25 has a turntable 27. The turntable 27 is inserted into a shaft hole 210 formed in the center of the optical disc 200. A magnet (not shown) is embedded at the tip of the turntable 27.

Further, the pedestal portion 21 is provided with a processing moving means 30 as a pickup guide device for advancing and retracting a pickup 42 described later in the radial direction of the optical disc 200. The processing moving means 30 includes a pair of guide shafts 31 and a moving electric motor 32.

Furthermore, the processing moving means 30 is provided with a recording / reproducing means 40. The recording / reproducing means 40 has a movement holding portion 41 held by a pair of guide shafts 31. In addition, a pick-up 42 is disposed in the movement holding unit 41.

Further, the chassis 15 is provided with a disk tray 50 as a tray on which the optical disk 200 is placed and moved so as to be movable back and forth in the horizontal direction. Details of the disc tray 50 will be described later.

Further, as shown in FIG. 2, the chassis 15 is provided with opening / closing drive means 60 for moving the disk tray 50 forward and backward.
The opening / closing drive means 60 includes a drive transmission unit 61 including gears, pulleys, endless belts, and the like, and an in / out electric motor 64. Then, the opening / closing driving means 60 advances and retracts the disk tray 50 from the window portion 13 a of the decorative plate 13 via the drive transmission portion 61 by driving of the electric motor 64 for entering / exiting.
Further, the opening / closing drive means 60 has a moving cam 68 disposed so as to be movable along the front surface of the chassis 15.
Then, the moving cam 68 moves along the width direction of the chassis 15 by driving the electric motor 64 for entry / exit and the drive transmission unit 61 to rotate the pedestal portion 21 in the vertical direction.

The main body 20 is constituted by the disk rotation driving means 25, the processing moving means 30, the recording / reproducing means 40, and the opening / closing driving means 60 described above.

The chassis 15 is provided with a rotor support member 17.
A support hole 17 b is formed in the rotor support member 17. A substantially disk-shaped rotor 29 is rotatably mounted in the support hole 17b. A magnetic material (not shown) is integrally attached to the rotor 29. The rotor 29 holds the optical disc 200 between the turntable 27 and the magnetic force of the magnet of the turntable 27.

A circuit board 70 is attached to the chassis 15.
The circuit board 70 is attached so as to cover the main body portion 20 by closing the lower surface of the chassis 15. A control unit 71 is mounted on the circuit board 70.

The control unit 71 controls the operation of the main unit 20 such as the control of entering / exiting the disc tray 50 and the process of recording information on the optical disc 200.

Next, details of the disc tray 50 will be described.
In the following, when the positional relationship of each component is indicated by a direction, the direction viewed from the front surface of the disk drive 100 is used.

As shown in FIGS. 3 to 5, the disc tray 50 is formed in a substantially rectangular plate shape with, for example, synthetic resin. The disc tray 50 includes a placement surface 51 on which the optical disc 200 is placed, a right front peripheral portion 52 provided on the right front side of the placement surface 51, and a left front peripheral portion 53 provided on the left front side. A left rear peripheral edge portion 54 provided on the left rear surface side, and a right rear peripheral edge portion 55 provided on the right rear surface side.

The mounting surface 51 is formed in a substantially plate shape that opens in a substantially C shape toward the rear surface side.

The right front peripheral edge 52 and the left front peripheral edge 53 constitute one edge peripheral edge. The left rear peripheral edge 54 and the right rear peripheral edge 55 constitute the other edge peripheral edge. These peripheral portions 52 to 55 constitute the peripheral portion of the present invention.
Each of the peripheral portions 52 to 55 is provided so as to protrude above the placement surface 51. Hereinafter, a detailed configuration of each of the peripheral portions 52 to 55 will be described.

The right front peripheral portion 52 includes a peripheral surface 521 formed in a substantially right triangular plate shape. The peripheral surface 521 is provided substantially parallel to the placement surface 51 at a position above the placement surface 51. The peripheral surface 521 is provided in a state where the oblique side portion of the substantially right triangle is located on the center side of the disc tray 50 and the right angle portion is located on the right front corner of the disc tray 50. Further, a vertical connection portion 522 connected to the periphery of the mounting surface 51 is provided at the right end portion of the oblique side portion of the peripheral surface 521.

In addition, a concave portion 523 that is recessed toward the left side is provided at the right end of the peripheral surface 521. That is, the recess 523 is formed in a shape recessed at the downstream end in the rotation direction A at the end portion on the upstream side in the rotation direction A on the peripheral surface 521. A guide surface 524 extending downward is provided at the front side portion of the recess 523. The guide surface 524 is formed in a shape substantially parallel to the side surface of the optical disc 200.
Further, a lower connection portion 525 connected to the periphery of the placement surface 51 is provided at the lower end of the guide surface 524.
In addition, a hole 526 is provided in a portion between the vertical connection portion 522 and the guide surface 524 below the concave portion 523. The hole 526 has an opening surface 526A that intersects the rotation direction A.
Further, a peripheral hole portion 527 having a shape along the side surface of the optical disc 200 is provided between the oblique side of the peripheral surface 521 and the peripheral surface of the mounting surface 51.

The left front peripheral edge 53 is formed in a symmetrical shape with the right front peripheral edge 52. That is, the left front peripheral edge 53 is similar to the peripheral edge 521, the vertical connection 522, the recess 523, the guide surface 524, the lower connection 525, the hole 526, the opening 526A, and the peripheral hole 537. 532, a recessed portion 533, a guide surface 534, a lower connecting portion 535, a counter hole portion 536, an opening surface 536A, and a peripheral hole portion 537.
Here, the counter hole portion 536 is provided at an end portion of the peripheral surface 531 on the downstream side in the rotation direction A.

Further, a tray front surface portion 56 is provided on the front side of the right front peripheral edge portion 52 and the left front peripheral edge portion 53. As shown in FIG. 2, a window closing plate portion 59 is detachably attached to the tray front surface portion 56.

The left rear peripheral edge 54 is provided with a substantially trapezoidal plate-shaped peripheral surface 541 as shown in FIGS. The peripheral surface 541 is formed in a shape in which one side connecting the upper base and the lower base is substantially orthogonal to the lower base, and the other side (hereinafter referred to as a hypotenuse) forms an acute angle with the lower base. . The peripheral surface 541 is provided in a state where the hypotenuse is located on the center side of the disc tray 50 and the right angle portion is located on the left rear corner of the disc tray 50. The oblique side portion of the peripheral surface 541 is connected to the peripheral surface of the placement surface 51.

The peripheral surface 541 includes a substantially trapezoidal outer peripheral portion 542 positioned slightly above the placement surface 51 on the left side, and a peripheral connecting portion 543 extending obliquely upward on the right side of the outer peripheral portion 542, The peripheral connection portion 543 is formed in a substantially trapezoidal plate shape with a substantially trapezoidal inner peripheral edge portion 544 extending from the extending tip to the right side.
The inner peripheral edge 544 is provided with a ventilation part 545 that allows the upper and lower edges of the peripheral surface 541 to communicate with each other. The ventilation portion 545 includes a plurality of circular ventilation holes 545A. 3 to 5, only some of the vent holes 545A are denoted by reference numerals.
In addition, a hole 546 is provided in the peripheral connection part 543. The hole 546 has an opening surface 546A that intersects the rotation direction A.

The right rear peripheral edge 55 is formed in a symmetrical shape with the left rear peripheral edge 54. That is, the right rear peripheral edge 55 is the same as the peripheral edge 541, the outer peripheral edge 542, the peripheral edge connecting part 543, the inner peripheral edge 544, the ventilation part 545, and the ventilation hole 545A. A portion 553, an inner peripheral edge 554, a ventilation portion 555, and a ventilation hole 555A.
Note that the right rear peripheral edge 55 does not have the same configuration as the hole 546 of the left rear peripheral edge 54. Further, the vent holes 555A are provided more than the vent holes 545A.

Further, a rectangular plate-shaped rear peripheral edge connecting portion 57 that connects the left rear peripheral edge portion 54 and the right rear peripheral edge portion 55 and closes the opening of the mounting surface 51 is provided. The rear periphery connecting portion 57 and the mounting surface 51 define a cutout portion 58 that functions as a space where the pickup 42 is exposed.

[Disk Drive Operation]
Next, the operation of the disk drive 100 in the above embodiment will be described. Here, the internal state of the case body 10 during the rotation of the optical disc 200 will be described in detail, and description of other operations will be omitted.

For example, when a processing command is transmitted from the user to the control unit 71 while the optical disc 200 is placed on the disc tray 50, the disc rotation driving unit 25 rotates the optical disc 200, and the processing by the recording / reproducing unit 40 is performed. Is implemented.

At this time, air flows B, F, and I are generated in the case body 10 as the optical disk 200 rotates in the rotation direction A, as shown in FIG.
As indicated by an arrow C, the air flow B passes through the recess 523 and is guided to the hole 526 by the guide surface 524. Further, the air taken into the right front peripheral portion 52 from the hole portion 526 is discharged from the peripheral hole portion 527 and taken into the left front peripheral portion 53 from the peripheral hole portion 537 as indicated by an arrow D. Further, the air taken into the left front peripheral edge 53 is discharged out of the left front peripheral edge 53 through the counter hole 536 as indicated by an arrow E.

Further, as indicated by an arrow G, the air flow F passes over the outer peripheral edge 542 and is taken into the left rear peripheral edge 54 through the hole 546. The taken-in air is discharged out of the left rear peripheral edge 54 from the notch 58 as indicated by an arrow H. Note that the air in the left rear peripheral edge portion 54 can also be discharged from the ventilation portion 545.
The air flow I is taken into the right rear peripheral edge 55 from the notch 58. The taken-in air is discharged out of the right rear peripheral edge 55 via the ventilation part 555 as indicated by an arrow J. The discharged air is guided to the placement surface 51 as indicated by an arrow K.
As described above, the air generated with the rotation of the optical disc 200 circulates in the case body 10.
In FIG. 3, an arrow J is attached only to a part of the vent holes 545A.

[Example]
Next, as examples, tests conducted to confirm the effects of the present invention will be described.
FIG. 6 is an explanatory diagram showing a test method. FIG. 7 is an explanatory diagram showing measurement results.

[Example 1]
Except that the

ventilation portions

545 and 555 were not formed, a noise test described later was performed on the disk drive 100 similar to the above-described embodiment.

[Example 2]
Except that the hole 546 and the

vents

[Comparative Example 1]
Except that the hole 526, the counter hole 536, and the

vents

〔Test method〕
In the test in this example, as shown in FIG. 6, noise measurement based on ISO7779 was performed.
Specifically, the disk drive 100 and the microphone 400 were installed using the table 300 or a microphone stand (not shown) so as to have the positional relationship shown in FIG. And the noise was measured on condition of the following.

(Measurement condition)
Frequency characteristics A
Dynamic characteristics: FAST
Measurement range: 20-90dB
Calculation method: Equivalent noise level (Leq)
Average time 30 sec
Disk drive speed: 6900, 9200, 10350, 11500 (min ⁻¹ )

The measurement results are shown in Table 1 below and FIG.
In FIG. 7, the vertical axis represents the noise level (dB). Further, the horizontal axis represents the disk rotation speed (min ⁻¹ ).

As apparent from Table 1 and FIG. 7, the disk drive 100 of Example 1 and Example 2 having the hole 526 of the present invention has less noise than the disk drive 100 of Comparative Example 1 having no hole 526. I understand that.
From this, it can be seen that the wind noise can be reduced by the hole 526 provided in the right front peripheral edge 52.
The disk drive 100 of the second example that does not include the hole 546 in the left rear peripheral edge 54 has a noise level higher than that of the first example, but at least in the range of 6900 to 10350 min ^{−1 in} the first comparative example. The effect of reducing wind noise is obtained.

[Effects of disk drive]
According to the above disk drive 100, the following effects can be expected.

(1)

Holes

526 and 546 having

opening surfaces

526A and 546A intersecting with the rotation direction A of the optical disc 200 are provided in the

peripheral portions

52 and 54 of the disc tray 50.
Therefore, the air flows B and F generated along with the rotation of the optical disc 200 can be taken into the

peripheral portions

52 and 54. As a result, it is possible to suppress an increase in local pressure in the disk drive 100 that is generated when the air flows B and F are stopped, and wind noise can be reduced.

(2) A hole 526 is provided in the right front peripheral edge 52 where the notch 58 is not provided.
Here, even in the conventional disk drive, since the

peripheral portions

54 and 55 are provided with the notches 58, the air flow I generated with the rotation of the optical disc 200 is caused to flow through the notches 58 to the right rear periphery. 55 was able to be captured. For this reason, it is considered that a local increase in pressure is unlikely to occur in the vicinity of the

peripheral portions

54 and 55.
However, since the

peripheral portions

52 and 53 of the conventional disk drive are not configured to take the air flow B into the right front peripheral portion 52, the air flow B is stopped and the pressure rises. Has occurred.
On the other hand, since the hole 526 is provided in the right front peripheral edge 52 in the above embodiment, the air flow B can be taken into the right front peripheral edge 52. Thereby, the rise in pressure can be suppressed and wind noise can be reduced.

(3) A hole 526 is provided in the right front peripheral edge 52, and a counter hole 536 is provided in the left front peripheral edge 53.
Here, no configuration is arranged inside the

peripheral portions

52 and 53. Therefore, in order to reduce the size of the disk drive 100, it is preferable to form the

peripheral portions

52 and 53 as small as possible.
Moreover, when the opening / closing drive means 60 is provided under the

peripheral portions

52 and 53 as in the above embodiment, the space in the

peripheral portions

52 and 53 is extremely small.
For this reason, when the counter hole 536 is not provided, the air flow B taken from the hole 526 may stay in the right front peripheral edge 52.
On the other hand, since the counter hole 536 is provided in the above embodiment, the air taken into the

peripheral edges

52 and 53 from the hole 526 is discharged from the counter hole 536 to the outside of the

peripheral edges

52 and 53. Can do.
Thereby, even if the space in the

peripheral parts

52 and 53 is small, the air flow B is not retained from the hole 526, and wind noise can be reduced.

(4)

Peripheral hole portions

527 and 537 are provided in the

peripheral edge portions

52 and 53.
For this reason, the flow of air taken into the right front peripheral edge 52 can be passed to the left front peripheral edge 53 through the

peripheral hole portions

527 and 537. As a result, it is possible to prevent the pressure from rising due to insufficient space in which air flows, and to reduce the generation of wind noise.

(5) The left rear peripheral edge 54 is also provided with a hole 546.
For this reason, the air flow F generated in the vicinity of the left rear peripheral edge 54 can be taken into the left rear peripheral edge 54, and the generation of wind noise accompanying the pressure increase in the vicinity of the left rear peripheral edge 54 is also reduced. be able to.

(6) A concave portion 523 that is recessed toward the left side is provided at an end portion of the right front peripheral edge portion 52, and a hole portion 526 is formed in the concave portion 523.
Therefore, the air flow B generated by the rotation of the optical disc 200 passes through the recess 523 and is guided to the hole 526. At this time, the part through which the air flows becomes wider and the distance traveled becomes longer, so that the pressure rise is less likely to occur. Therefore, the generation of wind noise can be further reduced.

(7) The guide surface 524 provided on the opposite side of the mounting surface 51 with respect to the hole portion 526 and substantially parallel to the side surface of the optical disc 200 is provided in the recess 523.
Therefore, the air flow that has passed through the recess 523 is smoothly guided to the counter hole 536 by the guide surface 534. Thereby, it is possible to prevent the air flow from stagnation in the recess 523 and the pressure from rising. Therefore, the generation of wind noise can be further reduced.

(8)

Ventilation portions

545 and 555 are provided on the inner

peripheral edge portions

544 and 554 of the

peripheral edge portions

54 and 55 so as to communicate the inner side and the outer side of the

peripheral edge portions

54 and 55.
For this reason, the air taken into the right rear peripheral edge 55 through the notch 58 can be discharged out of the right rear peripheral edge 55 from the ventilation portion 555. Therefore, unlike the conventional disk drive 100 which cannot discharge the taken-in air, the air flow I can be taken into the right rear peripheral edge 55 and discharged without stagnation. Therefore, the pressure rise and the accompanying wind noise are less likely to occur.
In particular, in the above embodiment, the ventilation portion 555 is provided on the downstream side in the rotation direction A of the optical disc 200 among the

peripheral surfaces

541 and 551 of the

peripheral portions

54 and 55.
For this reason, the air taken in in the right rear peripheral part 55 can be discharged | emitted appropriately.

(9) An outer peripheral edge portion 552 that is one step lower is provided adjacent to the ventilation portion 555.
For this reason, the air discharged from the ventilation portion 555 passes over the outer peripheral edge portion 552 and reaches the placement surface 51. Therefore, the flow of air is less likely to stagnate in a series of flows. Therefore, the pressure rise and the accompanying wind noise are less likely to occur.

[Modification of Embodiment]
In addition, this invention is not limited to embodiment mentioned above, The deformation | transformation shown below is included in the range which can achieve the objective of this invention.

That is, the counter hole 536, the

peripheral holes

527 and 537, the

recesses

523 and 533, the guide surfaces 524 and 534, and the

ventilation portions

545 and 555 need not be provided.
Further, the peripheral edge of the present invention may not be divided into the right front peripheral edge 52, the left front peripheral edge 53, the left rear peripheral edge 54, and the right rear peripheral edge 55.
That is, it is only necessary that at least one hole 526 is provided in one or a plurality of peripheral portions.
Even in such a configuration, since the air flow can be taken into the peripheral portion from the hole 526, a local pressure increase can be suppressed and wind noise can be reduced.

Although the disk drive 100 configured to convey the optical disk 200 into and out of the case body 10 by the disk tray 50 is illustrated, the present invention is not limited thereto, and for example, a lid member that can be opened and closed is provided on the upper part of the fixed disk tray 50. Good. In this case, for example, a configuration in which the lid member is opened and the optical disc 200 is placed can be employed.

In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like within a range in which the object of the present invention can be achieved.

[Effect of the embodiment]
In the above embodiment, the hole portion 526 having the opening surface 526A intersecting with the rotation direction A of the optical disc 200 is provided in the right front peripheral edge portion 52 of the disc tray 50.
Therefore, the air flow B generated with the rotation of the optical disc 200 can be taken into the right front peripheral edge 52. As a result, it is possible to suppress an increase in the local pressure of the disk drive 100 that occurs when the air flow B is stopped, and wind noise can be reduced.

The present invention can be used as a disk device.

Claims

A disk device including a case body, a disk processing unit that is provided in the case body and processes a disk-shaped recording medium, and a tray on which the recording medium is placed,
The disk processing unit includes a rotation driving unit that rotates the recording medium in one direction,
The tray
A mounting surface on which the recording medium is mounted;
A peripheral portion provided in a state of being provided at a peripheral edge of the mounting surface and protruding to one surface side of the mounting surface;
A disc device comprising: a hole portion provided at the peripheral edge portion and having an opening surface intersecting with a rotation direction of the recording medium.
The disk device according to claim 1,
The peripheral portion is
A peripheral edge located on one edge of the tray;
The other edge peripheral part facing the one edge peripheral part via the placement surface,
The disk processing unit
A pickup for processing the recording medium;
A pickup guide device that moves the pickup along the radial direction of the recording medium between the other peripheral edge and the placement surface;
A portion extending from the placement surface to the peripheral edge of the other edge is provided with a notch as a space where the pickup is exposed,
The disk device according to claim 1, wherein the hole is provided in the peripheral edge of the one edge.
The disk device according to claim 2,
The peripheral edge of the one edge is provided with the hole located at the end on the upstream side in the rotation direction and the counter hole located at the end on the downstream side in the rotation direction,
A disk device characterized in that a flow of air generated along with the rotation of the recording medium is taken into the peripheral edge of the edge from the hole and discharged from the counter hole.
The disk device according to claim 2 or 3,
The disk device according to claim 1, wherein the hole portion is also provided at an upstream end portion in the rotation direction in the peripheral edge portion of the other edge.
The disk device according to any one of claims 2 to 4,
At the end on the upstream side in the rotational direction in at least one of the peripheral edge of the one edge and the peripheral edge of the other edge, a recessed portion recessed on the downstream side in the rotational direction is provided,
The hole device is formed in the recess.
The disk device according to claim 5,
The disc device according to claim 1, wherein the concave portion is provided with a guide surface that is provided on a side opposite to the mounting surface with respect to the hole portion and is substantially parallel to a side surface of the recording medium.