WO2004114309A1 - Lecteur de disque d'enregistrement et rampe associee - Google Patents

Lecteur de disque d'enregistrement et rampe associee Download PDF

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Publication number
WO2004114309A1
WO2004114309A1 PCT/JP2003/007788 JP0307788W WO2004114309A1 WO 2004114309 A1 WO2004114309 A1 WO 2004114309A1 JP 0307788 W JP0307788 W JP 0307788W WO 2004114309 A1 WO2004114309 A1 WO 2004114309A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording disk
disk drive
housing
mounting base
regulating
Prior art date
Application number
PCT/JP2003/007788
Other languages
English (en)
Japanese (ja)
Inventor
Hiroaki Kobayashi
Kazunori Akama
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2003/007788 priority Critical patent/WO2004114309A1/fr
Priority to JP2005500895A priority patent/JP4091075B2/ja
Publication of WO2004114309A1 publication Critical patent/WO2004114309A1/fr
Priority to US11/128,377 priority patent/US20050207066A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/22—Supporting the heads; Supporting the sockets for plug-in heads while the head is out of operative position
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks

Definitions

  • the present invention relates to a recording disk drive such as an eight-disk drive (HDD), and more particularly, to a mounting stand vertically upright from a bottom surface received by a housing of the recording disk drive, and a side view of the mounting base.
  • a protrusion protruding along a horizontal plane and defining an inclined surface approaching the recording disk toward the center of the recording disk.
  • HDD hard disk drive
  • a so-called load-unload mechanism is widely known.
  • the flying head slider is retracted to a retract position set outside the magnetic disk when the magnetic disk is stationary.
  • the tip of the head suspension that is, the load tab, is received by the ramp member.
  • the mouthpiece slides on the ramp member.
  • the load tab jumps up from the ramp member.
  • the flying head slider is strongly hit against the HDD housing. Damage to the flying head slider is caused.
  • Patent Document 1
  • the present invention has been made in view of the above situation, and can reliably prevent the head slider from jumping up when the head slider moves toward the recording disk or when the head slider retreats from the recording disk.
  • Recording disk drive The purpose is to provide.
  • a housing a recording disk incorporated in the housing, a head slider facing the surface of the recording disk, and a head actuator supporting the head slider at a tip.
  • a mounting base that stands vertically from the bottom surface received by the housing, and a protrusion that protrudes from the side of the mounting base along the horizontal plane, and defines an inclined surface approaching the recording disk toward the center of the recording disk
  • a regulating member disposed inside the housing and facing the inclined surface on the protruding piece at the opposing surface.
  • the tip of the head actuator contacts the inclined surface based on the rotation of the head actuator. Further, when Head Actu Yue rocks, the tip of Head Actu Yue climbs the slope. After that, the tip of the head actuary slides on the surface of the protruding piece. Thus, the head slider retracts to the retract position.
  • the tip of the head actuator goes down the inclined surface based on the rotation of the head actuator.
  • the head slider faces the surface of the recording disk while the head of the head actuator goes down the inclined surface.
  • the buoyancy is applied to the head slider by the action of the airflow. Based on such buoyancy, the head slider keeps flying above the surface of the recording disk.
  • the regulating member is opposed to the inclined surface at the opposing surface.
  • the head slider moves toward the recording disk or when the head slider retreats from the recording disk and an impact is applied to the recording disk drive, the head slider tends to jump from the inclined surface.
  • the tip of the head actuator is received by the opposing surface of the regulating member. The operation of the restricting member surely prevents the head slider from jumping up. Collision between the head slider and the housing is avoided.
  • Such a recording disk drive is defined on the projection, a first sliding surface extending horizontally from the uppermost end of the inclined surface to the side surface of the mounting base in a horizontal direction, and defined on the projection.
  • a second sliding surface that extends in parallel with the side surface of the mount while descending from the first sliding surface may be further provided. At this time, the first sliding surface may face the regulating member, and the second sliding surface may face the regulating member.
  • the mounting base and the protruding piece constitute a lamp member.
  • the regulating member may be formed into a mounting base and a protruding piece based on integral molding. Alternatively, the regulating member may be fixed to the inward surface of the housing.
  • a mounting stand that stands vertically from the bottom surface received by the housing of the recording disk drive, and protrudes from the side of the mounting base along the horizontal plane to the center of the recording disk.
  • the regulating piece is opposed to the inclined surface on the opposing surface. Even when the head slider moves toward the recording disk or when the head slider moves away from the recording disk, an impact is applied to the recording disk drive, and the tip of the head actuator is received by the opposing surface of the regulating piece. . Bouncing of the head slider is reliably prevented by the function of the regulating piece.
  • Such a ramp member for a recording disk drive device is defined on the projecting piece, a first sliding surface extending horizontally from the uppermost end of the inclined surface to the side surface of the mounting base in a horizontal direction, and a first sliding face defined on the projecting piece.
  • a second sliding surface may be further provided that extends in parallel with the side surface of the mounting table while descending from the sliding surface. At this time, the first sliding surface only needs to face the regulating piece.
  • the restriction piece may be connected to the mounting base based on integral molding.
  • a recording disk A mounting stand that stands vertically from the bottom that is received by the housing of the drive unit, and an inclined surface that protrudes along the horizontal plane from the side of the mounting stand and approaches the recording disk toward the center of the recording disk
  • a first sliding surface defined on the projecting piece extending horizontally from the uppermost end of the inclined surface to the side surface of the mounting base in a horizontal direction, and a first sliding surface defined on the projecting piece.
  • the recording disk drive device ramp member comprises a second sliding surface extending in parallel to the side surface of the mounting table while descending from the mounting surface, and a regulating piece facing the first sliding surface at the opposing surface. May be provided.
  • the restriction piece may be connected to the mounting base based on integral molding.
  • a housing canister provided with a displacement regulating surface facing a ramp member to be received may be provided.
  • the displacement regulating surface is opposed to the tip of the head suspension.
  • the tip of the head suspension is received by the displacement regulating surface.
  • the displacement restricting surface may have a slope defined on the ramp member and approaching the recording disk toward the center of the recording disk.
  • a sliding surface defined on the ramp member continuously from the uppermost end of the inclined surface and extending in a direction away from the recording disk may further face the displacement regulating surface.
  • an inward surface that extends along a reference plane and faces a head suspension that supports a head slider at a tip, and a displacement regulating surface that rises from the inward surface are provided.
  • the displacement control surface is provided on a ramp member, and an inclined surface approaching the recording disk toward the center of the recording disk is opposed to the housing base. May be provided.
  • the displacement regulating surface is opposed to the tip of the head suspension.
  • the tip of the head suspension is received by the displacement regulating surface.
  • a sliding surface defined on the ramp member continuously from the uppermost end of the inclined surface and extending in a direction away from the recording disk may face the displacement regulating surface.
  • FIG. 1 is a plan view schematically showing a specific example of a recording disk drive according to an embodiment of the present invention, that is, a hard disk drive (HDD).
  • HDD hard disk drive
  • FIG. 2 is an enlarged perspective view of a lamp member according to one specific example.
  • FIG. 3 is an enlarged partial cross-sectional view of the HDD taken along line 3-3 in FIG. 1, and is a view schematically showing the structure and function of a lamp member.
  • FIG. 4 is an enlarged perspective view of a lamp member according to another specific example.
  • FIG. 5 is an enlarged partial cross-sectional view of the HDD corresponding to FIG. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 schematically shows an internal structure of a specific example of a recording disk drive according to the present invention, that is, a hard disk drive (HDD) 11.
  • the HDD 11 includes, for example, a box-shaped housing body, that is, a housing base 12 that partitions the internal space of a flat rectangular parallelepiped.
  • One magnetic disk 13 as a recording medium is accommodated in the accommodation space.
  • the magnetic disk 13 is mounted on a rotating shaft of a spindle motor 14.
  • the spindle motor 14 can rotate the magnetic disk 13 at a high speed such as, for example, 5400 rpm or 720 rpm.
  • Base 1 2 has a base 1 2 A lid, which seals the accommodation space, that is, a housing cover (not shown) is connected therebetween.
  • a data zone 17 is defined between the innermost recording track 15 and the outermost recording track 16 on the surface of the magnetic disk 13.
  • recording tracks are drawn concentrically. No information, that is, no data is recorded in a non-delay zone defined inside the innermost recording track 15 or outside the outermost recording track 16.
  • a head actuary 18 is further housed.
  • the head actuator 18 includes an actuator block 21 rotatably connected to a vertically extending support shaft 19.
  • a plurality of actuators 22 extending in the horizontal direction from the support shaft 19 are defined.
  • Such an actuator block 21 may be formed from aluminum, for example, based on the structure.
  • a head suspension 23 extending forward from the actuator arm 22 is attached.
  • a so-called gimbal spring (not shown) is connected to the tip of the head suspension 23.
  • the flying head slider 24 is fixed on the surface of the gimbal spring. By the action of such a gimbal spring, the flying head slider 24 can change its attitude with respect to the head suspension 23.
  • a so-called magnetic head that is, an electromagnetic transducer (not shown) is mounted on the flying head slider 24.
  • the electromagnetic transducer includes, for example, a write element (not shown) such as a thin-film magnetic head that writes information on a magnetic disk 13 using a magnetic field generated by a thin-film coil pattern, a spin-valve film and a tunnel. If it is composed of a read element (not shown), such as a giant magnetoresistance (GMR) element or a tunnel junction magnetoresistance (TMR) element, which reads information from the magnetic disk 13 using the resistance change of the bonding film Good.
  • GMR giant magnetoresistance
  • TMR tunnel junction magnetoresistance
  • a pressing force is applied to the flying head slider 24 from the head suspension 23 toward the surface of the magnetic disk 13. Buoyancy acts on the flying head slider 24 by the action of airflow generated on the surface of the magnetic disk 13 based on the rotation of the magnetic disk 13.
  • the magnetic force is balanced by the balance between the pressing force and the buoyancy of the head suspension 23.
  • the flying head slider 24 can keep flying with relatively high rigidity.
  • the flying head slider 24 When the head actuator 18 rotates around the support shaft 19 while the flying head slider 24 is flying, the flying head slider 24 can move along the radial line of the magnetic disk 13. As a result, the electromagnetic transducer on the flying head slider 24 can cross the data zone 17 between the innermost recording track 15 and the outermost recording track 16. Thus, the electromagnetic transducer on the flying head slider 24 is positioned on the target recording track.
  • the rotation of the head actuator 18 can be realized through the operation of a power source 25 such as a voice coil motor (VCM).
  • VCM voice coil motor
  • a load tab 26 extending forward from the tip of the head suspension 23 is fixed to the tip of the head suspension 23.
  • the load tab 26 can move in the radial direction of the magnetic disk 13 based on the swing of the head actuator 18.
  • the on the movement path of the load tab 2 6 ramp 2 7 is placed outside the magnetic disk 1 3.
  • the tip of the ramp member 27 enters inside from the outer edge of the magnetic disk 13 and faces the surface of the magnetic disk 13 outside the outermost recording track 16.
  • the ramp member 27 and the load tab 26 cooperate to form a so-called single-door unloading mechanism.
  • the lamp member 27 may be molded from a hard plastic material, for example.
  • the ramp member 27 includes a mounting base 31 that is screwed to the bottom plate of the base 12 outside the magnetic disk 13, for example.
  • the mounting base 31 is vertically upright from the bottom surface received by the bottom plate of the base 12.
  • a projecting piece 32 protruding from the side surface of the mounting base 31 toward the support shaft 19 of the head actuator 18 along a horizontal plane is formed.
  • the projecting piece 32 is integrated with the mounting base 31 based on, for example, integral molding.
  • a receiving groove 33 is formed in the mounting base 31 and the projecting piece 32.
  • the magnetic disk 13 is received in the receiving groove 33.
  • a contact surface 34 is defined on the surface of the projection 32 along the movement path of the load tab 26.
  • the contact surface 34 has an inclined surface 35 arranged closest to the outermost recording track 16 on the magnetic disk 13.
  • the inclined surface 35 is inside the magnetic disk 13 As it approaches the mind, it approaches the surface of the magnetic disk 13.
  • the first sliding surface 36 is connected to the uppermost end, that is, the outer end of the inclined surface 35.
  • the first sliding surface 36 extends horizontally from the uppermost end of the inclined surface 35 to the side surface of the mounting table 28 along the movement path of the load tab 26.
  • An outer end of the first sliding surface 36 is connected to a second sliding surface 37 force S extending in a direction away from the magnetic disk 13.
  • the second sliding surface 37 extends in parallel to the side surface of the mounting base 28 while descending from the first sliding surface 33 along the movement path of the load tab 26.
  • the second sliding surface 37 is arranged at a position lower than the first sliding surface 36. In other words, the second sliding surface 37 is closer to one horizontal plane including the surface of the magnetic disk 13 than the first sliding surface 36 is.
  • the second sliding surface 37 is formed with an inclined surface that gradually decreases as the distance from the first sliding surface 36 increases.
  • a displacement regulating surface 38 is defined on the protruding piece 32.
  • the displacement regulating surface 38 may extend at least in parallel with the second sliding surface 37.
  • the displacement regulating surface 38 faces the flying head slider 24.
  • a plate-shaped restricting member that is, a restricting piece 39 is formed, which protrudes along a horizontal plane toward the support shaft 19 of the head actuator 18.
  • a contact surface 34 that is, an inclined surface 35, and first and second sliding surfaces 36, 37 are opposed to the opposing surface of the restriction piece 39.
  • a predetermined space for receiving the load tab 26 is secured between the restriction piece 39 and the contact surface 34.
  • the restricting pieces 39 need only be opposed to the first and second sliding surfaces 36 and 37 at equal intervals.
  • the restricting piece 38 may be integrally formed on the mounting base 31 and the protruding piece 32 based on integral molding.
  • the power source 25 rotates the head actuator 18 around the support shaft 19 in the forward direction.
  • the actuator 22 and the head suspension 23 are driven outward of the magnetic disk 13.
  • the flying head slider 24 does not move beyond the outermost recording track 16 to form a non-data zone. That is, when facing the landing zone, the load tab 26 contacts the inclined surface 35 of the contact surface 34.
  • the mouth 26 moves up the slope 35.
  • the tip of the head suspension 23 gradually moves away from the surface of the magnetic disk 13.
  • the gimbal spring engages the head suspension 23, the flying head slider 24 is pulled up from the surface of the magnetic disk 13.
  • the load tab 26 slides from the first sliding surface 36 to the second sliding surface 37.
  • the flying head slider 24 is positioned at the retracted position.
  • the load tab 26 is received by the ramp member 27.
  • the rotation of the magnetic disk 13 stops. Since the load tab 26 is held on the ramp member 27, collision or contact of the flying head slider 24 with the magnetic disk 13 can be avoided even in a windless state. Adsorption between the lubricant spreading on the surface of the magnetic disk 13 and the flying head slider 24 can be effectively prevented.
  • the load tab 26 is held by the second sliding surface 37, the engagement between the gimbal spring and the head suspension 23 is released. The deformation of the gimbal spring is avoided while the magnetic disk 13 is stationary.
  • the magnetic disk 13 starts rotating.
  • the power source 25 rotates the head actuator 19 around the support shaft 19 in the opposite direction to the above-described forward direction.
  • the actuator arm 22 and the head suspension 23 are driven toward the rotation axis of the magnetic disk 13.
  • the load tab 26 slides on the second sliding surface 37, the first sliding surface 36, and the inclined surface 35 in this order.
  • the load tab 26 goes down the slope 35 based on the swing of the arm 22. In this way, the flying head slider 24 faces the surface of the magnetic disk 13 while the load tab 26 moves down the inclined surface 35.
  • the flying head slider 24 is provided with buoyancy based on an airflow generated along the surface of the magnetic disk 13.
  • the load tab 26 is separated from the inclined surface 35, that is, the ramp member 27.
  • the magnetic disk 13 rotates in a steady state.
  • the flying head slider 24 can keep flying above the surface of the magnetic disk 13 without being supported by the ramp member 27.
  • the regulating piece 39 is opposed to the inclined surface 35 and the first and second sliding surfaces 36 and 37 on the opposing surface.
  • the load tab 26 becomes Attempts to jump from the inclined surface 35 and the first and second sliding surfaces 36, 37.
  • the load tab 26 is received by the opposing surface of the restriction piece 39.
  • the opening of the mouth tab 26, that is, the flying head slider 24, is reliably prevented by the function of the regulating piece 39. Collision between the flying head slider 2 and the housing cover or base 12 is prevented.
  • the above-mentioned HDD 11 incorporates one magnetic disk 13.
  • the magnetic disk 13 is usually arranged close to the bottom plate of the base 12.
  • a large space is formed between the slope 35 and the first and second sliding surfaces 36, 37 and the cover.
  • the impact of the collision between the flying head slider 24 and the cover based on the jump of the load tab 26 increases.
  • the action of the restricting piece 39 ensures that the mouth tab 26, ie, the flying head slider 24, does not jump. Damage to the flying head slider 24 can be reliably avoided.
  • two or more magnetic disks 13 may be incorporated in the HDD 11 described above.
  • the projecting piece 32 As shown in FIG. What is necessary is just to form the projecting piece 32.
  • a receiving groove 33 is formed in each protruding piece 32.
  • Each of the projecting pieces 32 has a contact surface 34, that is, an inclined surface 35, and first and second sliding surfaces 36 and 37, as described above.
  • structures and configurations equivalent to those of the above-described embodiment are denoted by the same reference numerals.
  • the regulating piece 39 is opposed to the inclined surface 35 and the first and second sliding surfaces 36, 37 on the opposing surface.
  • the regulating member 39 may be fixed to the inward surface 41a of the cover 41, for example.
  • the inward surface 41a extends along the reference plane.
  • the head suspension 23 is opposed to the inward facing surface 41a.
  • the restricting member 39 defines a displacement restricting surface 42 facing the ramp member 27.
  • the displacement regulating surface 42 rises from the inward surface 41a.
  • the above-described inclined surface 35 and the first sliding surface 36 are opposed to the displacement regulating surface 42.
  • a second sliding surface 37 may be further opposed to the displacement regulating surface 42.
  • the regulating member 39 may be fixed to the inward surface 12 a of the base 12, for example.
  • the inward surface 1 2a extends along the reference plane.
  • the head suspension 22 is opposed to the inward facing surface 12a.
  • a displacement regulating surface 43 facing the ramp member 27 is defined.
  • the displacement regulating surface 43 rises from the inward surface 12a.
  • the above-described inclined surface 35 and the first sliding surface 36 are opposed to the displacement regulating surface 43.
  • the second sliding surface 37 may further face the displacement regulating surface 43.
  • the displacement restricting surfaces 42 and 43 face the inclined surface 35 and the first sliding surface 36.
  • the load head 2 6 Is received by the displacement regulating surfaces 42 and 43.
  • the load tab 26, that is, the flying head slider 24 can be reliably prevented from jumping up.
  • the collision between the flying head slider 24 and the housing cover or base 12 is prevented. Damage to the flying head slider 24 is reliably avoided.
  • the above-mentioned displacement regulating surfaces 42, 43 are provided with a cover 41, which rises from the reference plane. It may be defined by the inward faces 41 a and 12 a of the base 12.

Abstract

Un lecteur de disque d'enregistrement comprend une base de fixation (31) qui se dresse verticalement depuis la partie inférieure logée dans le boîtier. Une saillie (32) dépasse de la surface latérale de la base de fixation (31), le long d'un plan horizontal. Des surfaces inclinées (35) dans la saillie (32) sont conçues pour venir en contact avec le centre d'un disque d'enregistrement. Sur la surface de la saillie (32), des première et seconde surfaces coulissantes (36, 37) s'étendent horizontalement, en continu, et parallèlement à la surface latérale de la base de fixation (31), en partant de l'extrémité supérieure des surfaces inclinées (35). Ces surfaces inclinées (35), ainsi que les première et seconde surfaces coulissantes (36, 37), font face à la surface opposée d'un élément de réglage (39). Même si le lecteur de disque d'enregistrement subit un choc, l'extrémité avant du mécanisme de commande de tête de lecture s'arrête sur la surface opposée de l'élément de réglage (39) et le rebond du curseur de la tête de lecture se bloque de manière sûre.
PCT/JP2003/007788 2003-06-19 2003-06-19 Lecteur de disque d'enregistrement et rampe associee WO2004114309A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2003/007788 WO2004114309A1 (fr) 2003-06-19 2003-06-19 Lecteur de disque d'enregistrement et rampe associee
JP2005500895A JP4091075B2 (ja) 2003-06-19 2003-06-19 記録ディスク駆動装置およびランプ部材
US11/128,377 US20050207066A1 (en) 2003-06-19 2005-05-13 Recording disk drive and ramp member therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/007788 WO2004114309A1 (fr) 2003-06-19 2003-06-19 Lecteur de disque d'enregistrement et rampe associee

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/128,377 Continuation US20050207066A1 (en) 2003-06-19 2005-05-13 Recording disk drive and ramp member therefor

Publications (1)

Publication Number Publication Date
WO2004114309A1 true WO2004114309A1 (fr) 2004-12-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/007788 WO2004114309A1 (fr) 2003-06-19 2003-06-19 Lecteur de disque d'enregistrement et rampe associee

Country Status (2)

Country Link
JP (1) JP4091075B2 (fr)
WO (1) WO2004114309A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1196707A (ja) * 1997-09-09 1999-04-09 Internatl Business Mach Corp <Ibm> 情報記録再生装置用ランプ及び情報記録再生装置
JP2001043644A (ja) * 1999-07-30 2001-02-16 Toshiba Corp ディスク記憶装置及び同装置に適用するヘッド退避装置
JP2002124076A (ja) * 2000-10-13 2002-04-26 Hitachi Ltd 磁気ディスク装置
JP2002298529A (ja) * 2001-03-30 2002-10-11 Toshiba Corp ヘッドロードアンロード機構及びこのヘッドロードアンロード機構を備えたディスク装置
JP2002298531A (ja) * 2001-04-03 2002-10-11 Hitachi Ltd ランプロード方式磁気ディスク装置
JP2003141841A (ja) * 2001-10-31 2003-05-16 Toshiba Corp ディスク装置及び同装置に搭載されるヘッド退避機構

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1196707A (ja) * 1997-09-09 1999-04-09 Internatl Business Mach Corp <Ibm> 情報記録再生装置用ランプ及び情報記録再生装置
JP2001043644A (ja) * 1999-07-30 2001-02-16 Toshiba Corp ディスク記憶装置及び同装置に適用するヘッド退避装置
JP2002124076A (ja) * 2000-10-13 2002-04-26 Hitachi Ltd 磁気ディスク装置
JP2002298529A (ja) * 2001-03-30 2002-10-11 Toshiba Corp ヘッドロードアンロード機構及びこのヘッドロードアンロード機構を備えたディスク装置
JP2002298531A (ja) * 2001-04-03 2002-10-11 Hitachi Ltd ランプロード方式磁気ディスク装置
JP2003141841A (ja) * 2001-10-31 2003-05-16 Toshiba Corp ディスク装置及び同装置に搭載されるヘッド退避機構

Also Published As

Publication number Publication date
JP4091075B2 (ja) 2008-05-28
JPWO2004114309A1 (ja) 2006-07-20

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