WO2001001407A1 - Appareil a disque optique - Google Patents

Appareil a disque optique Download PDF

Info

Publication number
WO2001001407A1
WO2001001407A1 PCT/JP2000/004147 JP0004147W WO0101407A1 WO 2001001407 A1 WO2001001407 A1 WO 2001001407A1 JP 0004147 W JP0004147 W JP 0004147W WO 0101407 A1 WO0101407 A1 WO 0101407A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
feed mechanism
objective lens
optical pickup
optical disc
Prior art date
Application number
PCT/JP2000/004147
Other languages
English (en)
Japanese (ja)
Inventor
Shinji Yamaguchi
Shingo Omata
Original Assignee
Kabushiki Kaisha Kenwood
Kabushiki Kaisha Kenwood Precision
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 Kabushiki Kaisha Kenwood, Kabushiki Kaisha Kenwood Precision filed Critical Kabushiki Kaisha Kenwood
Publication of WO2001001407A1 publication Critical patent/WO2001001407A1/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam

Definitions

  • the present invention relates to an optical disk device such as a CD player, and more particularly to a technique for preventing an objective lens of an optical pickup of an optical disk device from being stained.
  • FIG. 12 is an exploded perspective view of a main part of a conventional optical disk device.
  • the optical disk device includes a turntable 3 that is driven to rotate by a spindle motor 2 fixed to a chassis 1 and a radial direction of an optical disk (not shown) mounted on a table 3.
  • a feed mechanism 10 movably supported in the opening 4 of the chassis 1 and an optical pickup 1 attached to the feed mechanism 10 and reciprocating between the inner circumference and the outer circumference of the optical disk with the movement of the feed mechanism 10.
  • the feed mechanism 10 is guided by the feed shaft 5 inserted into the hole 11 and the driving force from the feed motor 6 is a combination of gears. It is driven by being transmitted through the drive transmission mechanism 7.
  • a rack gear 12 attached to the feed mechanism 10 is provided with a pinion gear attached to a shaft of a gear 8 included in the drive transmission mechanism 7 (in FIG. No) Thereby, the rotational driving force from the feed motor 6 is converted into a linear driving force by the rack gear 12 and transmitted to the feed mechanism 10.
  • the shutter 17 has its mounting shaft 18 rotatably supported by the mounting hole 13 of the feed mechanism 10 and is mounted between the hook 14 provided on the feed mechanism 10 and the shutter 17.
  • the spring 20 is always biased in the opening direction (the direction of arrow A).
  • the shutter 17 is in the open position during normal use of the optical disc apparatus (during recording or reproduction of the optical disc), and does not block the objective lens 16 of the optical pickup 15.
  • the feed mechanism 10 When the optical disk device is not used (when stopped or when the power is turned off), the feed mechanism 10 is moved in the inner circumferential direction of the optical disk (that is, in the direction approaching the evening table 3). At this time, by moving the feed mechanism 10 further than the innermost recording surface of the optical disk, the boss 19 formed on the shirt 17 contacts the wall 9 erected on the chassis 1. . As a result, the shutter 17 stakes against the biasing force of the spring 20 and rotates in the closing direction (the direction of arrow B) to cover the objective lens 16 of the optical pickup 15.
  • the structure described above has some structural instability factors, as described below. That is, the distance between the objective lens 16 of the optical pickup 15 and the optical disk is about 1.6 mm, and the shutter 17 described above must be provided in this small gap. No. Therefore, it is necessary to make the thickness of the shutter 17 as small as possible, for example, about 0.3 mm.
  • the table 3 on which the optical disk is placed has a mechanical dimensional tolerance of 0.35 mm, and furthermore, the runout of the turntable 3 itself. Exists. Also, the optical disk has a surface runout of 0.6 to 0.7 mm in specifications. The runout of the optical disk is particularly remarkable in the outer peripheral portion compared to the inner peripheral portion.
  • an optical disc device of the present invention includes a turntable that is driven to rotate by a spindle motor, a feed mechanism that is supported so as to be movable in a radial direction of an optical disc mounted on the turntable,
  • An optical disc device having an optical pickup attached to a feed mechanism and reciprocating between an inner circumference and an outer circumference of the optical disc in response to movement of the feed mechanism, the optical disc apparatus being disposed on a fixed portion near a turntable, It has a shutter that is movable between a closed position that covers the objective lens of the optical pickup and an open position that exposes the objective lens in accordance with the reciprocation of the optical pickup.
  • the shirt to prevent the objective lens of the optical pickup from being stained should be used only when the optical pickup is moved to the vicinity of the turntable, that is, to the inner circumference of the optical disc placed on the turntable. Move between open and closed positions. Therefore, the effects of the optical disk's mechanical accuracy (surface deflection, warpage) can be almost ignored. As a result, it is hoped that design margin will be improved, and consequently parts management and maintenance will be easier, yield and quality will be improved. In addition, since the movable position of the shutter is always fixed, the margin in design can be similarly improved in the peripheral mechanism for transporting the optical disk.
  • An optical disc apparatus includes a turntable that is driven to rotate by a spindle motor, a feed mechanism that is supported movably in a radial direction of an optical disc mounted on the turntable, and the feed mechanism.
  • An optical pickup mounted on the optical disc and having an optical pickup that reciprocates between an inner circumference and an outer circumference of the optical disk in response to movement of the feed mechanism.
  • the shirt is disposed on a fixed portion near the turntable and is movable between a closed position for covering the objective lens of the optical pickup and an open position for exposing the objective lens in accordance with the reciprocating movement of the optical pickup.
  • a part of the optical pickup comes into contact with a part of the feed mechanism to be in a closed position that covers and hides the objective lens.
  • a part of the optical disk is separated from a part of the feed mechanism, and the open position exposes the objective lens.
  • the shutter for preventing the objective lens of the optical pickup from being contaminated is provided only when the optical pickup is moved to the vicinity of the turntable, that is, to the inner peripheral side of the optical disc mounted on the evening table.
  • the part moves between the open position and the closed position by contacting or separating part of the feed mechanism. Therefore, the effects of the optical disk's mechanical accuracy (surface deflection, warpage) can be almost ignored.
  • design margin will be improved, and consequently parts management and maintenance will be easier, yield and quality will be improved.
  • the margin in design can be similarly improved in the peripheral mechanism for transporting the optical disk.
  • An optical disc apparatus includes a turntable rotatably driven by a spindle motor and an optical disc mounted on the turntable movably supported in a radial direction.
  • An optical disc apparatus comprising: a feed mechanism driven through a mechanism; and an optical pickup attached to the feed mechanism and reciprocating between an inner circumference and an outer circumference of the optical disc in response to movement of the feed mechanism.
  • Turn tape It is disposed on a fixed part near the lens and has a blocking wall that blocks between the objective lens of the optical pickup and the drive transmission mechanism.
  • An optical disk device is an optical disk device that is rotatably driven by a spindle motor, and is supported so as to be movable in a radial direction of an optical disk mounted on the turntable.
  • An optical disc apparatus having a feed mechanism driven through a drive transmission mechanism, and an optical pickup attached to the feed mechanism and reciprocating between an inner circumference and an outer circumference of the optical disc in accordance with the movement of the feed mechanism.
  • An optical pickup disposed at a fixed portion near the turntable, for blocking between the objective lens of the optical pickup and the drive transmission mechanism, and at a fixed portion near the turntable.
  • the shutter is movable between a closed position that covers the objective lens of the optical pickup and an open position that exposes the objective lens according to the reciprocating motion of the optical pickup.
  • the shutter for preventing the objective lens of the optical pickup from being contaminated is provided only when the optical pickup is moved close to the evening table, that is, when the optical pickup is moved to the inner circumference of the optical disc placed on the turntable. Move between open and closed positions. Therefore, the effects of the optical disk's mechanical accuracy (surface deflection, warpage) can be almost ignored. As a result, it is hoped that design margin will be improved, and consequently parts management and maintenance will be easier, yield and quality improved. Further, since the movable position of the shutter is always fixed, the margin in design can be similarly improved in the peripheral mechanism for transporting the optical disk. In addition, dust and squirt jumping from the drive transmission mechanism toward the objective lens are blocked by the blocking wall, and the objective lens can be prevented from being soiled.
  • the shutter is constantly urged in a closing direction or an opening direction by an elastic means.
  • the shutter can be reliably returned to the closed position or the open position by the biasing force of the elastic means.
  • FIG. 1 is an exploded perspective view of a main part of an optical disk device according to the present invention.
  • FIG. 2 is a plan view of a main part of the optical disk device of FIG.
  • FIG. 3 is a rear view of a main part of the optical disk device of FIG.
  • FIG. 4 is a front perspective view of a chassis in the optical disc device of FIG.
  • FIG. 5 is a rear perspective view of a chassis in the optical disc device of FIG.
  • FIG. 6 is a perspective view of a feed shaft in the optical disk device of FIG.
  • FIG. 7 is a front perspective view of a shutter in the optical disk device of FIG.
  • FIG. 8 is a rear perspective view of a shutter in the optical disk device of FIG.
  • FIG. 9 is a partial perspective view showing another embodiment of the optical device of the present invention.
  • FIG. 10 is a partial perspective view showing still another embodiment of the optical device of the present invention.
  • FIG. 11 is a schematic diagram for explaining the opening and closing operation of the shutter of the optical disk device of FIG. 10, where (A) shows an open position state and (B) shows a closed position state.
  • FIG. 12 is an exploded perspective view of a main part of a conventional optical disk device.
  • FIG. 1 is an exploded perspective view of a main part of an optical disk device according to the present invention
  • FIG. 2 is a plan view
  • FIG. 3 is a rear view
  • 4 and 5 are a front perspective view and a rear perspective view, respectively, of the chassis in the optical disk device of FIG.
  • FIG. 6 is a perspective view of a feed shaft in the optical disk device of FIG. 7 and 8 are a front perspective view and a rear perspective view of the shirt in the optical disk device of FIG. 1, respectively.
  • the same components as those in the conventional example shown in FIG. 12 are denoted by the same reference numerals and described.
  • a spindle motor 2, a turntable 3, a feed motor 6, a feed mechanism 10, and an optical pickup 15 are mounted on a chassis 1 serving as a fixed portion.
  • the chassis 1 is an integrally molded product using a material such as ABS resin. As shown in FIGS. 4 and 5, an opening 4 for movably mounting the feed mechanism 10 and a spindle motor are provided.
  • the cylindrical mounting part 3 1 for fitting and fixing the screw 2, the mounting part 3 2 for mounting the feed motor 6, and the mounting part 3 3 for mounting the drive transmission mechanism 7 Has been established.
  • a perforated boss 23, a blocking wall 24, a shutter connected to the blocking wall 24, a one-piece support portion 25, and a hook 26 are provided.
  • the body is formed. Shutdown — The height of the support 25 is such that the shirt 22 of the shirt 17 can slide over it and does not collide with the objective lens 16 from the side. Is set to
  • the feed mechanism 10 has two holes 11 for inserting a feed shaft 5 (see FIG. 6) attached to one side of the opening 4 of the chassis 1, a support groove 27, and an arc-shaped notch. A part 28 and a protrusion 29 are formed. The arc-shaped notch portion 28 is formed on the side surface facing the turntable 3, and the curvature of the arc matches the curvature of the outer shape of the cylindrical mounting portion 31 of the chassis 1.
  • the feed mechanism 10 is provided with an optical pickup 15 and a rack gear 12.
  • the feed mechanism 10 is guided by a feed shaft 5 penetrated through the hole 11 and has a support groove 27 (see FIG. 3) formed on the opposite side of the hole 11 to the chassis 1.
  • the rail 4 is supported by a rail 30 which is one side of the opening 4 so as to be slidable.
  • the feed mechanism 10 is driven by transmitting the driving force from the feed motor 6 via a drive transmission mechanism 7 composed of a combination of gears. That is, a rack gear 12 attached to the feed mechanism 10 is a pinion gear attached to the shaft of the gear 8 included in the drive transmission mechanism 7 (not shown in FIG. )
  • the rotational driving force from the feed motor 6 is converted into a linear driving force by the rack gear 12 and transmitted to the feed mechanism 10.
  • the shutter 17 is an integrally molded product made of resin. It has the shape shown in FIG. 8 and FIG. 8, and has a mounting shaft 18, a boss 19, a locking groove 21, and a shirt piece 22. The distance between the mounting shaft 18 and the boss 19 is set shorter than the distance between the mounting shaft 18 and the tip of the shirt evening piece 22.
  • the shirt evening piece 22 is formed as thin as about 0.3 mm.
  • the shirt shaft 17 has a mounting shaft 18 inserted into a perforated boss 23 of the chassis 1 and is rotatably supported.
  • the shutter 17 is always opened in the opening direction (spring 20) as an elastic means attached between the hook 26 provided on the chassis 1 and the locking groove 21 of the shutter 17. (In the direction of arrow A).
  • the optical disk drive starts and rotates the spindle motor 2 to rotate the evening table 3, and accordingly, the light placed on the turntable 3 is turned on.
  • the disk also rotates.
  • the feed motor 6 starts and rotates, and drives the feed mechanism 10 via the drive transmission mechanism 7 and the rack gear 12.
  • the feed mechanism 10 reciprocates between the inner circumference and the outer circumference of the optical disc, and accordingly, the optical pickup 15 mounted on the feed mechanism 10 also reciprocates between the inner circumference and the outer circumference of the optical disc. While moving, it records signals on the optical disk or reads signals from the optical disk.
  • the feed mechanism 10 and the optical pickup 15 move in the inner circumferential direction of the optical disk (that is, the direction approaching the evening table 3).
  • the feed mechanism 1 A value of 0 contacts the limit switch (not shown) attached to the back of the chassis to operate the limit switch.
  • the rotation of the spindle motor 2 is stopped, and the recording or reproducing operation of the optical disk is completed.
  • the feed motor continues to drive a little more. For this reason, the feed mechanism 10 moves so as to be closer to the turntable 3 than the innermost recording surface of the optical disc. Further, the further movement of the feed mechanism 10 uses the inertial operation of the feed mode 6. You may do it.
  • the feed mechanism 10 since the side surface of the feed mechanism 10 facing the turntable 3 is an arc-shaped notch 28, the feed mechanism 10 does not collide with the cylindrical mounting part 31 of the chassis 1, It is possible to move closer to the turntable 3 than the innermost recording surface. By this further movement, the boss 19 formed on the shutter 17 comes into contact with the projection 29 formed on the feed mechanism 10. As a result, the shutter 17 rotates in the closing direction (in the direction of the arrow B) against the biasing force of the spring 20, and the shirt piece 22 covers the objective lens 16 of the optical pickup 15. Closed position (solid line position in Fig. 2). When the shutter piece 22 is in the closed position, the feed mechanism 10 is completely stopped. Note that the stop may be executed when the feed mechanism 10 collides with the chassis 1.
  • the distance between the mounting shaft 18 of the shutter 17 and the boss 19 is set shorter than the distance between the mounting shaft 18 and the tip of the shirt piece 22.
  • the pivoting movement of the shutter piece 22 occurring when it comes into contact with the part 29 depends on the further movement distance of the feed mechanism 10. Then, it is amplified several times in a stroke (for example, about 6 times in this embodiment). Therefore, if the feed mechanism 10 is moved a small distance in the direction closer to the turntable 3 than the innermost recording surface of the optical disc, for example, only 2 mm, the rotation distance of the shirt 1 2 2 is 1 2 It becomes millimeter. As a result, the shirt evening piece 22 can be reliably moved from the open position to the closed position.
  • the objective lens 16 of the optical pickup 15 is covered by the shutter 17 so that dirt due to dust or the like can be removed. Can be prevented.
  • the feed mechanism 10 and the optical pickup 15 are located between the inner periphery of the optical disk and the closed position of the shutter 17, the feed mechanism 10 and the optical pickup 15 are cut off from the drive transmission mechanism 7 by the cut-off wall 24 of the chassis 1. Is done. Therefore, dust or the like that is going from the drive transmission mechanism 7 toward the objective lens 16 is blocked by the blocking wall 24.
  • each gear (including the gear 8) constituting the drive transmission mechanism 7 may apply grease to the meshing portion when the meshing of the gears becomes poor.
  • grease due to the centrifugal force caused by the rotation of some gears at high speed, grease may fly around and cause a dusty flying phenomenon. Even when such a phenomenon occurs, the objective lens 16 is protected from grease splattering by the drive transmission mechanism 7 due to the presence of the blocking wall 24.
  • the feed mechanism 10 and the optical pickup 15 move from the inner peripheral side to the outer peripheral side of the optical disk.
  • the boss 19 formed on the shirt 17 is separated from the projection 29 of the feed mechanism 10 that has been in contact.
  • the shutter 17 rotates in the opening direction (in the direction of the arrow A) in response to the biasing force of the spring 20, and the shirt evening piece 22 is securely connected to the objective lens of the optical pickup 15.
  • the optical pickup 15 can perform recording or reproduction of the optical disc mounted on the evening table 3 without any trouble.
  • the shirt 22 of the shirt 17 always rests on the shutter support 25 formed on the chassis 1. Supported. Therefore, even if there is a dimensional error in the height direction when the mounting shaft 18 of the shutter 17 is attached to the perforated boss 23, the shirt piece 22 will be lower than the height of the objective lens 16. There is no. Therefore, when the shirt 17 moves to the closed position, the shutter piece 22 does not collide with the objective lens 16 from the lateral direction.
  • the spring 20 may be mounted such that the biasing force acts in the opposite manner to the above-described embodiment. That is, the shutter 17 is mounted so that it is always biased in the closing direction (the direction of arrow B) by the spring 20 and the shutter 17 is opened in the opening direction (arrow) against the biasing force of the spring 20. (Direction A).
  • the opening / closing operation of the shutter 17 is performed by the urging force of the spring 20 and the boss 1 formed on the shutter 17.
  • a structure as shown in FIG. 9 can be used instead. That is, a guide groove 3 having a linear portion formed in parallel with the rack gear 12 on the inner peripheral side of the optical disk and a curved portion bent toward the optical pip-up 15 on the outer peripheral side of the feed mechanism 10. Form 4. Then, the boss 19 of the shutter 17 mounted by inserting the mounting shaft 18 into the perforated boss 23 is loosely fitted into the guide groove 34.
  • the post 19 of the shutter 17 is located in the linear portion of the guide groove 34, so that the shutter piece 22 is in the open position.
  • the boss 19 of the shutter 17 enters the curved portion from the straight portion of the guide groove 34, and the shutter piece 22 opens. It turns from the position to the closed position and covers the objective lens 16.
  • the shutter 17 does not open and close by rotation described above, but uses a structure as shown in FIGS. 10 and 11 to open and close horizontally. It is good. That is, a substantially trapezoidal cam 35 is formed on the feed mechanism 10 on the outer peripheral side of the optical disc. Then, the shirt 1 17 having the boss 19, the shirt 1 2 2 and the long hole 3 6 is placed in the chassis 1 near the turntable 3 in the lateral direction (ie, the moving direction of the feed mechanism 10). (In the direction perpendicular to the direction). The long hole 36 of the shirt 1 17 is formed to a length necessary to reciprocate the shirt 2 2 between the open position and the closed position.
  • Shutter 17 is installed by screwing screw 3 7 into chassis 1 through slot 36 It can move linearly horizontally between.
  • a spring 20 is connected between the end of the shutter 17 on the opposite side of the shirt evening piece 2 2 and the proper position of the chassis 1, and the shutter evening 17 always opens in the opening direction due to the biasing force. Being energized.
  • the boss 19 is arranged on the movement locus of the cam 35 when the feed mechanism 10 moves from the outer circumference to the inner circumference of the optical disk when the shutter 17 is at the open position.
  • the shutters 17 and the barriers 24 are directly arranged on the chassis 1, but they may be installed via other fixing means or may be installed on a chassis other than the chassis 1. Fixed part of, for example, disk device It may be arranged on a chassis or the like on the body side.
  • the optical disk device of the present invention it is possible to provide a shutter near the inner periphery for preventing the objective lens of the optical pickup from being stained, and the effect of the mechanical accuracy (surface deflection, warpage) of the optical disk is almost eliminated. It can be ignored. As a result, it is hoped that the design margin will be improved, and consequently the management and maintenance of parts, the yield, and the quality will be improved. In addition, since the movable position of the shutter is always fixed, the margin in design can be similarly improved in the peripheral mechanism for transporting the optical disk.
  • the drive transmission mechanism is directed toward the objective lens. It can prevent dust and dusty flying, etc., and prevent the objective lens from becoming dirty.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)

Abstract

L'invention concerne un appareil à disque optique capable d'éliminer, autant que possible, les facteurs instables liés à une structure empêchant la contamination d'une lentille d'objectif d'un lecteur optique, comprenant une table de lecture (3) entraînée en rotation par un moteur (2) à broche, un mécanisme d'amenée (10) porté mobile dans le sens radial d'un disque optique posé sur la table de lecture (3), un lecteur optique (15) disposé sur le mécanisme d'amenée (10) et déplacé en un va-et-vient entre les périphéries intérieure et extérieure du disque optique selon le mouvement du mécanisme d'amenée (10), et un obturateur (17) disposé sur un châssis (1) constituant une partie fixe près de la table de lecture (3) et mobile entre une position fermée dans laquelle la lentille (16) d'objectif du lecteur optique (15) est fermée, selon le mouvement de va-et-vient du lecteur optique (15), et une position ouverte dans laquelle la lentille (16) de l'objectif est exposée.
PCT/JP2000/004147 1999-06-29 2000-06-23 Appareil a disque optique WO2001001407A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11/184172 1999-06-29
JP11184172A JP2001014709A (ja) 1999-06-29 1999-06-29 光ディスク装置

Publications (1)

Publication Number Publication Date
WO2001001407A1 true WO2001001407A1 (fr) 2001-01-04

Family

ID=16148635

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/004147 WO2001001407A1 (fr) 1999-06-29 2000-06-23 Appareil a disque optique

Country Status (2)

Country Link
JP (1) JP2001014709A (fr)
WO (1) WO2001001407A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100601462B1 (ko) 2004-07-22 2006-07-14 삼성전기주식회사 대물렌즈 보호수단이 구비된 광디스크 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328588U (fr) * 1989-07-28 1991-03-22
JPH0486224U (fr) * 1990-11-30 1992-07-27
JPH07134836A (ja) * 1993-11-10 1995-05-23 Matsushita Electric Ind Co Ltd 光ディスク装置
JPH0822633A (ja) * 1994-06-30 1996-01-23 Alpine Electron Inc ディスク装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328588U (fr) * 1989-07-28 1991-03-22
JPH0486224U (fr) * 1990-11-30 1992-07-27
JPH07134836A (ja) * 1993-11-10 1995-05-23 Matsushita Electric Ind Co Ltd 光ディスク装置
JPH0822633A (ja) * 1994-06-30 1996-01-23 Alpine Electron Inc ディスク装置

Also Published As

Publication number Publication date
JP2001014709A (ja) 2001-01-19

Similar Documents

Publication Publication Date Title
KR100550481B1 (ko) 디스크 장치
JPH01260660A (ja) 情報処理装置
KR890003036B1 (ko) 비디오플레이어/레코더 소제 장치
JP3513849B2 (ja) 光ディスク装置
US7610590B2 (en) Optical disc apparatus
WO2001001407A1 (fr) Appareil a disque optique
US4700338A (en) Automatic loading disc player
EP1174872B1 (fr) Appareil d'entraínement de disque
JP4148237B2 (ja) 記録及び／又は再生装置
JP2003317360A (ja) ディスク装置
JP3835744B2 (ja) 光ピックアップ装置及びそのシャッタ
JP4088468B2 (ja) ディスク記録再生装置
JP2006323928A5 (fr)
JPH05144058A (ja) レンズクリーナ
JP3725334B2 (ja) 光ヘッドの送り装置
KR100240124B1 (ko) 탑로딩방식 씨디피
JP3679667B2 (ja) ギア列を具えた電気機器
JP3930753B2 (ja) ディスク記録再生装置
KR840001729Y1 (ko) 테이프 레코오더
JPH10143964A (ja) ディスク駆動装置
KR100240123B1 (ko) 탑로딩방식 씨디피
KR20060098591A (ko) 광픽업 유닛 지지수단을 포함하는 광디스크 플레이어 장치
JP2009037708A (ja) トレイ扉開閉機構及びディスク記録及び／又は再生装置
JP2004334918A (ja) ディスク演奏装置
JPH0656689B2 (ja) オ−トロ−ディングディスクプレ−ヤ

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN ID KR SG