WO2009084095A1 - Disque - Google Patents

Disque Download PDF

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Publication number
WO2009084095A1
WO2009084095A1 PCT/JP2007/075195 JP2007075195W WO2009084095A1 WO 2009084095 A1 WO2009084095 A1 WO 2009084095A1 JP 2007075195 W JP2007075195 W JP 2007075195W WO 2009084095 A1 WO2009084095 A1 WO 2009084095A1
Authority
WO
WIPO (PCT)
Prior art keywords
peripheral
peripheral edge
edge
disk
disk device
Prior art date
Application number
PCT/JP2007/075195
Other languages
English (en)
Japanese (ja)
Inventor
Katsuhiro Onodera
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Priority to PCT/JP2007/075195 priority Critical patent/WO2009084095A1/fr
Publication of WO2009084095A1 publication Critical patent/WO2009084095A1/fr

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/148—Reducing friction, adhesion, drag

Definitions

  • the present invention relates to a disk device.
  • 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
  • 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.
  • stimulates the thermal radiation of an optical pick-up by such ventilation is taken.
  • FIG. 1 is a plan view showing a schematic configuration of a conventional disk tray.
  • the lower side corresponds to the front side of the disk device
  • the upper side corresponds to the rear side of the disk device.
  • the disc tray 800 includes a placement surface 810 on which the optical disc 200 is placed, a left rear periphery portion 820 and a right rear periphery portion 830 that are provided on the periphery of the placement surface 810 and project to one surface side of the placement surface 810, Is provided.
  • the mounting surface 810 is formed in a substantially plate shape that opens in a substantially C shape toward the rear surface side.
  • the left rear peripheral edge 820 has a peripheral surface 821 provided substantially parallel to the mounting surface 810 at a position above the mounting surface 810.
  • a vertical wall portion 822 that is connected substantially perpendicularly to the periphery of the mounting surface 821 is provided at the end of the peripheral surface 821 on the mounting surface 810 side.
  • the right rear peripheral edge 830 is formed in a shape symmetrical to the left rear peripheral edge 820. That is, the right rear peripheral edge 830 includes a peripheral face 831 and a vertical wall 832 similar to the peripheral face 821 and the vertical wall 822.
  • a rectangular plate-shaped rear peripheral edge connecting portion 840 that connects the left rear peripheral edge portion 820 and the right rear peripheral edge portion 830 and closes the opening of the placement surface 810 is provided.
  • the rear periphery connecting portion 840 and the mounting surface 810 define a notch portion 850 that functions as a space for a pickup (not shown) to advance and retreat.
  • 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 provided in the case body for processing a disk-shaped recording medium, and a tray for mounting the recording medium
  • the disk processing unit includes a rotation driving unit that rotates the recording medium in one direction, a pickup that processes the recording medium, and a pickup guide device that advances and retracts the pickup in a radial direction of the recording medium
  • the tray includes a mounting surface on which the recording medium is mounted, and 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 portion extending from the in-plane to the peripheral portion is provided with a notch as a space for exposing the pickup, and the peripheral portion has a ventilation portion that communicates the inside and the outside of the peripheral portion. Vignetting, the flow of air generated with the rotation of the recording medium, the uptake from the notch in the periphery, characterized in that discharged from the vent.
  • FIG. 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 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.
  • 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 ... Guiding surface 526, 546 ... , 546A ... opening surface 536 ... counter hole 545, 555 ... ventilation part
  • 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
  • a playback device for recording and reading information on an optical disk as a disk-shaped recording medium
  • Any disk device that records or reads various information on any recording medium such as a disk can be targeted.
  • the recording medium include CD (Compact Disc), DVD (Digital Versatile Disc), BD (Blu-ray Disc), HD-DVD (High Definition DVD), and the like.
  • 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.
  • 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.
  • a rotation guide portion 22 that guides rotation about the other edge of the pedestal portion 21 is integrally attached.
  • 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.
  • 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.
  • 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.
  • a pick-up 42 is disposed in the movement holding unit 41.
  • 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.
  • 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.
  • 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.
  • the disc tray 50 is formed in a substantially rectangular plate shape, for example, with 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. And 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.
  • 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 triangle 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.
  • a vertical connection portion 522 connected to the periphery of the mounting surface 51 is provided at the right end of the oblique side portion of the peripheral surface 521.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 oblique side 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.
  • 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.
  • a rectangular plate-shaped rear peripheral edge connecting portion 57 that connects these and closes the opening of the placement surface 51 is provided between the left rear peripheral edge portion 54 and the right rear peripheral edge portion 55.
  • 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.
  • the disc rotation driving unit 25 rotates the optical disc 200, and the processing by the recording / reproducing unit 40 is performed. Is implemented.
  • 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.
  • the air flow B passes through the recess 523 and is guided to the hole 526 by the guide surface 524.
  • 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.
  • 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.
  • 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.
  • 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.
  • an arrow J is attached only to a part of the vent holes 545A.
  • FIG. 6 is an explanatory diagram showing a test method.
  • FIG. 7 is an explanatory diagram showing measurement results.
  • Example 1 A noise test, which will be described later, was performed on the disk drive 100 similar to the above-described embodiment.
  • Example 2 Except that the holes 526 and 546 and the counter hole 536 are not formed, a noise test described later was performed on the disk drive 100 similar to that of the above-described embodiment.
  • noise measurement based on ISO7779 was performed.
  • 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.
  • the vertical axis represents the noise level (dB). Further, the horizontal axis represents the disk rotation speed (min ⁇ 1 ).
  • the disk drive 100 of Example 1 and Example 2 having the ventilation portions 545 and 555 of the present invention is different from the disk drive 100 of Comparative Example 1 having no ventilation portions 545 and 555. It can be seen that the noise is low. From this, it can be seen that the wind noise can be reduced by the ventilation portions 545 and 555.
  • the disk drive 100 according to the second embodiment that does not include the holes 526 and 546 and the counter hole 536 has a louder noise than the first embodiment. From this, it can be seen that the wind noise can be further reduced by providing the holes 526 and 546 and the counter hole 536 in addition to the ventilation parts 545 and 555.
  • 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.
  • the ventilation portion 555 is provided on the downstream side in the rotation direction A of the optical disc 200 from the notch portion 58 in 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
  • a hole 526 is provided in the right front peripheral edge 52 where the notch 58 is not provided.
  • the air flow B is stopped and the pressure rises. There was a sound.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • Peripheral holes 527 and 537 are provided in the peripheral edges 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.
  • 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 due to the pressure increase in the vicinity of the left rear peripheral edge 54 is further reduced. be able to.
  • a concave portion 523 recessed toward the left side is provided at the end 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.
  • a guide surface 524 that is provided on the opposite side of the mounting surface 51 with respect to the hole 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.
  • the 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.
  • the holes 526 and 546, the counter hole 536, the peripheral holes 527 and 537, the recesses 523 and 533, and the guide surfaces 524 and 534 may not be provided.
  • 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 ventilation part 545, 555 is provided in one or a plurality of peripheral parts. Even in such a configuration, since the air flow can be discharged from the ventilation portions 545 and 555 to the outside of the peripheral portion, a local pressure increase can be suppressed and wind noise can be reduced.
  • the present invention is not limited to this, and for example, a lid member that can be opened and closed is provided on 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.
  • the ventilation portions 545 and 555 for providing communication between the inside and the outside of the peripheral portions 54 and 55 are provided on the peripheral portions 54 and 55 of the disc tray 50. 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.
  • the present invention can be used as a disk device.

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  • Feeding And Guiding Record Carriers (AREA)

Abstract

Des parties de ventilation (545 et 555) qui relient un côté intérieur et un côté extérieur de parties de bords périphériques (54 et 55) sont formées au niveau des parties de bords périphériques (54 et 55) d'un chargeur de disque (50). Ainsi, l'air entraîné dans la partie de bord périphérique arrière droite (55) par une partie de fente (58) peut être évacué à l'extérieur de la partie de bord périphérique arrière droite (55) par la partie de ventilation (555). Par conséquent, un flux (I) d'air peut être entraîné dans la partie de bord périphérique arrière droite (55) et peut être évacué différemment et sans interruption d'un disque conventionnel (100) dans lequel l'air qui est entraîné à l'intérieur ne peut être évacué. Ainsi, l'augmentation de la pression et le bruit d'air qui a lieu en raison de cette augmentation peuvent difficilement se produire.
PCT/JP2007/075195 2007-12-27 2007-12-27 Disque WO2009084095A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/075195 WO2009084095A1 (fr) 2007-12-27 2007-12-27 Disque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/075195 WO2009084095A1 (fr) 2007-12-27 2007-12-27 Disque

Publications (1)

Publication Number Publication Date
WO2009084095A1 true WO2009084095A1 (fr) 2009-07-09

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ID=40823835

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Application Number Title Priority Date Filing Date
PCT/JP2007/075195 WO2009084095A1 (fr) 2007-12-27 2007-12-27 Disque

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000231782A (ja) * 1999-02-10 2000-08-22 Matsushita Electric Ind Co Ltd ディスク装置及びその放熱方法
JP2004310883A (ja) * 2003-04-04 2004-11-04 Hitachi-Lg Data Storage Inc 光ディスク装置
JP2004326911A (ja) * 2003-04-24 2004-11-18 Funai Electric Co Ltd ディスク装置
JP2006107602A (ja) * 2004-10-04 2006-04-20 Pioneer Electronic Corp ディスク再生装置
JP2007102884A (ja) * 2005-10-03 2007-04-19 Hitachi Ltd 光ディスク装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000231782A (ja) * 1999-02-10 2000-08-22 Matsushita Electric Ind Co Ltd ディスク装置及びその放熱方法
JP2004310883A (ja) * 2003-04-04 2004-11-04 Hitachi-Lg Data Storage Inc 光ディスク装置
JP2004326911A (ja) * 2003-04-24 2004-11-18 Funai Electric Co Ltd ディスク装置
JP2006107602A (ja) * 2004-10-04 2006-04-20 Pioneer Electronic Corp ディスク再生装置
JP2007102884A (ja) * 2005-10-03 2007-04-19 Hitachi Ltd 光ディスク装置

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