WO2010070924A1 - ディスク装置 - Google Patents
ディスク装置 Download PDFInfo
- Publication number
- WO2010070924A1 WO2010070924A1 PCT/JP2009/007019 JP2009007019W WO2010070924A1 WO 2010070924 A1 WO2010070924 A1 WO 2010070924A1 JP 2009007019 W JP2009007019 W JP 2009007019W WO 2010070924 A1 WO2010070924 A1 WO 2010070924A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clamp
- spindle motor
- disk
- disc
- view
- Prior art date
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
- G11B17/0286—Positioning or locking of single discs of discs rotating during transducing operation by clampers mounted on a pivotal lever
Definitions
- the present invention relates to a disk device for mounting and rotating a disk.
- a disk clamp unit using a magnetic force of a magnet that is coaxially and detachably fixed to a rotating shaft of a spindle motor that rotates a disk is known (see, for example, Patent Document 1).
- a laminated body of a hollow disk-like permanent magnet and a yoke is fixed in a recess provided on the side of the disc chuck portion facing the clamper.
- the permanent magnet is positioned by a step portion in the recess.
- the thickness of the conventional disc clamp unit due to the presence of the centering portion of the clamp 3 arranged in the extending direction of the rotating shaft 1A of the spindle motor 1 as shown in FIGS. .
- the thicknesses of the disks 7 and 8 held by pressure bonding with the disk table 2 and the clamp 3 vary. Due to this variation, the relative position of the disc table 2 and the clamp 3 approaches or separates, and the clearance 9 generated between the disc table 2 and the clamp 3 in the centering portion of the clamp 3 is not constant. Therefore, the accuracy of the centering position of the clamp 3 with respect to the disk table 2 is lowered, and there is a disadvantage that abnormal noise is generated during reproduction or recording of the disk or reproduction performance is degraded.
- An object of the present invention is to provide a disk device that enables further thinning of a disk clamp unit.
- the disk device of the present invention includes a spindle motor that fixes and rotates the disk, an alignment ring that is fixed to a rotation shaft of the spindle motor, and a clamp unit that mounts the disk on the spindle motor.
- the alignment ring has a protrusion formed around the rotation shaft of the spindle motor, and a magnetic attraction means provided around the rotation shaft of the spindle motor across the space between the protrusion and the clamp motor.
- the portion includes a center member formed with a recessed space into which the protruding portion is fitted, and a member to be attracted to be attracted by the magnetic attraction means. The fitting of the protruding portion into the recessed space and the magnetic The disk is mounted on the spindle motor by the suction force received from the suction means.
- the disc device according to the present invention clamps the disc by positioning the clamp portion on the alignment ring and attracting the clamp portion in the direction close to the disc rotating portion by the magnetic attraction means. Can do.
- the protrusion provided on the alignment ring so as to be positioned around the rotation axis of the spindle motor fits into the recess space formed by the annular protrusion of the clamp part.
- the centering configuration of the clamp part with reduced thickness is possible.
- the center member has a concave groove-shaped portion
- the sucked member has an engaging protrusion that can be engaged with the concave groove-shaped portion
- the clamp portion is The center member and the member to be sucked are combined by the engagement of the groove-shaped portion and the engagement protrusion.
- the disc device of the present invention can incorporate the clamp portion by a simple operation of fitting the engagement protrusion formed on the attracted portion into the concave groove shape.
- the disk device of the present invention further includes a clamp guide that holds the clamp portion so as to be able to approach and move away from the spindle motor, and the clamp portion rotates according to the rotation of the spindle motor, and the rotation center is at the rotation center. It has a curved convex portion that comes into contact with the clamp guide and a concave groove provided surrounding the curved convex portion.
- the disk device according to the present invention lubricates the concave portion provided around the convex portion even when a lubricant such as grease applied to the surface of the curved convex portion flows out in the outer circumferential direction of the curved convex portion when the disk rotates.
- the material can be fastened to prevent the lubricant from adhering to the clamped disc.
- the recess space formed in the center member of the clamp portion is fitted to the protrusion formed on the rotating shaft and the alignment ring of the spindle motor.
- the centering configuration of the clamp portion can be reduced in thickness, and a disc device that can further reduce the thickness of the disc clamp unit can be provided.
- Front sectional view of a conventional disc clamp unit 1 is an overall perspective view of a car audio device as an electronic device according to an embodiment of the present invention.
- the perspective view of the principal part of the disc apparatus concerning this Embodiment 1st arrow sectional drawing of the principal part of the disc clamp unit concerning this embodiment.
- Sectional drawing of the 2nd arrow of the principal part of the disc clamp unit concerning this embodiment The 1st enlarged view of the principal part of the disc clamp unit concerning this embodiment.
- Sectional drawing of the 3rd arrow of the principal part of the disc clamp unit concerning this embodiment The 2nd enlarged view of the principal part of the disc clamp unit concerning this embodiment.
- a plan view and a cross-sectional view of a clamp portion in the present embodiment A plan view and a right side view of the center member in the present embodiment Plan view and sectional view of sucked member in the present embodiment
- attachment of the clamp part in this Embodiment The perspective view of the state after the assembly
- Assembly state diagram of sucked member to center member in the present embodiment A plan view and a cross-sectional view of the guide configuration of the clamp portion in the present embodiment Plan view and left side view of clamp unit in the present embodiment Plan view and left side view of clamp unit in the present embodiment
- the surface with the disk insertion slot is the front
- the left-right direction is the X direction (the right direction is the positive direction)
- the depth direction is the Y direction (the depth direction is the normal direction).
- the thickness direction is defined as the Z direction (the upper surface direction is defined as the positive direction).
- FIG. 3 is an overall perspective view of a car audio device 600 as an electronic device incorporating the disk device according to the present embodiment.
- the car audio device 600 includes a radio 601 and a cassette tape playback device 602 in addition to the disk device.
- the car audio apparatus 600 includes a front panel 603, a display unit 603A and a power / volume knob 603B shared by all functions, a disk insertion / ejection slot 604A in the disk apparatus, a radio tuning knob 601A, and a cassette tape. And an insertion / extraction port 602A.
- the car audio device 600 includes a control unit (not shown) that controls a radio, a cassette tape playback device, a disk device, and the like.
- FIG. 4 is an overall perspective view of a main part of a disk clamp unit 700 which is a main part of the disk device according to the present embodiment.
- the disc clamp unit 700 is installed in the base chassis 100 and includes a spindle motor 300, an alignment ring 301, a clamp unit 400, and a clamp guide 500.
- the spindle motor 300 places the disc 200 and rotates the placed disc 200.
- the alignment ring 301 is fixed to the rotation shaft of the spindle motor 300, and guides the center hole 200A of the disk 200 when the disk 200 is placed on the spindle motor 300. More specifically, the alignment ring 301 guides the center hole 200 ⁇ / b> A so that the virtual axis passing through the center of the center hole 200 ⁇ / b> A of the disk 200 and the rotation axis of the spindle motor 300 are coaxial.
- the clamp unit 400 clamps the disk 200 with the spindle motor 300 when the disk 200 rotates.
- the clamp guide 500 holds the clamp unit 400 by moving the clamp unit 400 toward and away from the spindle motor 300.
- the disk 200 is transparently displayed on the inside so that components installed on the lower surface of the disk 200 can be seen, and is represented by only the outline.
- the clamp portion 400 is shown in a state before the disc 200 is sandwiched.
- FIGS. 4 and 5 to 9 showing cross sections of the spindle motor 300 and the clamp unit 400 when viewed from the S direction shown in FIG. .
- FIG. 5 is a cross-sectional view of the main part of the disc clamp unit 700 according to the present embodiment as viewed from the direction S in FIG.
- FIG. 5 is a cross-sectional view of the disc clamp unit 700 in a state where the disc 200 is placed on the spindle motor 300 and before the disc 200 is sandwiched between the spindle motor 300 and the clamp unit 400.
- FIG. 6 is a cross-sectional view of the main part of the disc clamp unit 700 according to the present embodiment as viewed from the S direction in FIG. 4, and shows a state where the disc 200 is sandwiched between the spindle motor 300 and the clamp unit 400. Show.
- the disk 200 is a thin disk (thickness t1.1 mm).
- FIG. 7 is an enlarged view of a main part of the disc clamp unit 700 shown in FIG. 6 according to the present embodiment.
- FIG. 8 is a cross-sectional view of the main part of the disc clamp unit 700 according to the present embodiment as seen from the direction S in FIG. 4, and shows a state in which the disc 200 is sandwiched between the spindle motor 300 and the clamp unit 400. Show.
- FIG. 9 is an enlarged view of the main part of the clamp unit shown in FIG. 8 according to the present embodiment.
- the disc 200 placed on the spindle motor 300 is restricted in movement in the X direction and in the Y direction by the disc guide surface 301A of the alignment ring 301, and is concentric with the rotation axis of the spindle motor 300. Regulated by position.
- the disk 200 placed on the spindle motor 300 is clamped by the spindle motor 300 and the clamp unit 400, so that movement in the Z direction with respect to the spindle motor 300 is restricted. That is, the disk 200 is mounted on the spindle motor 300 by the clamp unit 400.
- the alignment ring 301 has a space 301B in which the magnet 302 can be stored.
- the alignment ring 301 has an annular magnet 302 that is fixed to a surface of the space 301B that forms the space 301B.
- the magnet 302 is a magnetic attraction unit that magnetically attracts the clamp unit 400.
- the magnet 302 only needs to be arranged around the rotation shaft of the spindle motor 300.
- the alignment ring 301 may be arranged outside the magnet 302.
- the clamp part 400 has a configuration in which a center member 401 and a sucked member 402 are combined.
- the attracted member 402 has physical properties (such as iron) that can be magnetically attracted, and is magnetically attracted in the negative direction of the Z direction by the magnetic attractive force of the magnet 302.
- the center member 401 is laminated on the sucked member 402.
- the center member 401 is formed with an annular protrusion 401A.
- the annular protrusion 401 ⁇ / b> A protrudes from the lower surface of the sucked member 402 through a hole formed in the central portion of the sucked member 402.
- a concave space 401G is formed in the annular protrusion 401A formed on the center member 401 of the clamp part 400. Due to the recess space 401G, the annular protrusion 401A has an annular shape.
- the alignment ring 301 is fixed to the rotation shaft 300 ⁇ / b> A of the spindle motor 300.
- the alignment ring 301 is formed with a ring-shaped protrusion 301C around the rotation shaft 300A.
- the protrusion 301C of the alignment ring 301 fits into a recessed space 401G formed in the annular protrusion 401A of the center member 401 of the clamp 400. Accordingly, the clamp unit 400 is centered with respect to the spindle motor 300 while being restricted from moving in the X direction and the Y direction with respect to the spindle motor 300.
- the recessed space 401G formed in the annular protrusion 401A of the center member 401 is configured such that the ring-shaped protrusion 301C of the alignment ring 301 can be fitted in a nested manner. Is formed. For this reason, even when the disk 200 is sandwiched between the spindle motor 300 and the clamp portion 400, the annular protrusion 401A of the center member 401 and the protrusion 301C of the alignment ring 301 are fitted in a nested manner. Held together. Further, this fitting and holding does not depend on whether the disc 200 is thin or thick. That is, the disc clamp unit 700 can maintain the centering accuracy of the clamp portion 400 with respect to the spindle motor 300 at a high level even when the thickness of the disc 200 varies.
- the rotation shaft 300A of the spindle motor 300 and the protrusion 301C of the alignment ring 301 are fitted in the space 401G of the clamp part 400.
- the clamp unit 400 and the centering configuration of the clamp unit 400 can be thinned, and the disc clamp unit 700 and various devices incorporating the same can be thinned.
- the sucked member 402 is disposed below the center member 401 in the clamp portion 400.
- the relative distance of the attracted member 402 that receives the magnetic attraction force of the magnet 302 can be arranged close to a position where it can come into contact with the magnet 302. Therefore, the magnetic attractive force by the magnet 302 can be maximized, and the clamp holding performance of the disk 200 by the magnet 302 can be improved.
- FIG. 10 is a plan view and a cross-sectional view of the clamp part 400 in the present embodiment.
- FIG. 10A is a plan view of clamp portion 400 in the present embodiment.
- FIG. 10B is a cross-sectional view of clamp portion 400 in the present embodiment.
- FIG. 11 is a plan view and a right side view of the center member 401 of the clamp unit 400 in the present embodiment.
- FIG. 11A is a plan view of center member 401 of clamp portion 400 in the present embodiment.
- FIG. 11B is a right side view of center member 401 of clamp portion 400 in the present embodiment.
- FIG. 12 is a plan view and a cross-sectional view of the sucked member 402 of the clamp unit 400 in the present embodiment.
- FIG. 12A is a plan view of suction target member 402 of clamp portion 400 in the present embodiment.
- FIG. 12B is a cross-sectional view of sucked member 402 of clamp portion 400 in the present embodiment.
- the recessed space 401G formed in the annular protrusion 401A of the center member 401 is fitted to the protrusion 301C of the alignment ring 301.
- a resin material for the center member 401 in consideration of ensuring mutual slidability with the alignment ring 301 and preventing the center member 401 and the alignment ring 301 from being damaged.
- the center member 401 can be made of a metal material.
- the attracted member 402 has physical properties (such as iron) that can be magnetically attracted by the magnet 302.
- the center member 401 has a shape in which a disc-shaped portion 401F and an annular-shaped projecting portion 401A are integrated.
- Four groove-shaped portions 401B having the same shape are formed on the side surface of the annular protrusion 401A.
- the groove-shaped portion 401B has a space T formed by the lower surface of the disk-shaped portion 401F and the circumferential groove end surface of the groove-shaped portion 401B.
- four circular holes 401D having the same shape are formed with their positions shifted by 90 degrees.
- a dome-shaped curved convex portion 401H is formed on the surface opposite to the surface on which the annular protrusion 401A is disposed.
- An annular groove 401I is formed around the curved convex portion 401H.
- the sucked member 402 has a disk shape.
- An eaves portion 402 ⁇ / b> A is formed on the outer peripheral side of the sucked member 402.
- a disk contact portion 402 ⁇ / b> E that contacts the disk 200 when the disk 200 is clamped is formed on the inner peripheral side of the sucked member 402.
- a surface having a hole is formed in the center of the sucked member 402.
- four protrusions 402B having the same shape facing the center of the member to be sucked 402 are formed.
- two dome-shaped engaging projections 402D are formed on the outer peripheral side of the central hole so as to sandwich the central hole.
- FIG. 13 is an exploded perspective view of the clamp unit 400 according to the present embodiment before assembly.
- FIG. 14 is a perspective view of a state after assembly of the clamp portion 400 in the present embodiment.
- FIG. 15 is an assembled state diagram of the member to be sucked 402 with respect to the center member 401 in the clamp unit 400 of the present embodiment.
- 15A to 15C sequentially show the assembled state of the sucked member 402 with respect to the center member 401 in three stages: an initial assembly state, an intermediate assembly state, and an assembly completion state. More specifically, FIG. 15A to FIG. 15C show the surface development of the side surface of the annular protrusion 401A of the center member 401. Further, in this development view, the position transition of the protrusion 402B of the sucked member 402 is shown. Is shown.
- the protrusion 402B is a member that engages with the groove-shaped portion 401B formed in the center member 401 as described above.
- the procedure for assembling the center member 401 and the sucked member 402 is as follows. First, the protrusion 402B of the member to be sucked 402 is engaged with the groove-shaped portion 401B of the center member 401 so that the annular protrusion 401A of the center member 401 protrudes from the center hole of the member to be sucked 402. The combined state (the state shown in FIG. 15A) is created. Then, the sucked member 402 is moved to a position where it comes into contact with the disc-shaped portion 401F of the center member 401 (the state shown in FIG. 15B). Then, the protrusion 402B of the sucked member 402 creates a state (the state shown in FIG.
- the clamp unit 400 having the above-described configuration As described above, in the clamp unit 400 having the above-described configuration, the assembling work of the center member 401 and the sucked member 402 is easy. Further, in the clamp portion 400 having the above-described configuration, the engagement protrusion 402D of the sucked member 402 is engaged with the hole 401D formed in the center member 401. Thereby, the clamp part 400 can reduce the possibility that the assembly of the sucked member 402 with respect to the center member 401 is removed due to a disturbance due to vibration or impact.
- guide configuration a configuration for moving the clamp unit 400 toward and away from the spindle motor 300 will be described with reference to FIGS. 16 to 18.
- FIG. 16 is a plan view and a cross-sectional view of the guide configuration of the clamp unit 400 in the present embodiment.
- FIG. 16A is a plan view of a guide configuration of clamp portion 400 in the present embodiment.
- FIG. 16B is a cross-sectional view of the guide configuration of clamp portion 400 in the present embodiment.
- FIG. 17 is a plan view and a left side view of the disc clamp unit 700 in the present embodiment.
- FIG. 17A is a plan view of the disc clamp unit 700 in the present embodiment.
- FIG. 17B is a left side view of the disc clamp unit 700 in the present embodiment. 17A and 17B show a state before the disc 200 is clamped.
- FIG. 18 is a plan view and a left side view of the disc clamp unit 700 in the present embodiment.
- 18A is a plan view of the disc clamp unit 700 in the present embodiment
- FIG. 18B is a left side view of the disc clamp unit 700 in the present embodiment
- FIGS. 18A and 18B show a state in which the disc 200 is clamped. Show.
- FIGS. 17 to 18 the base chassis 100 and the slider 502 are described in schematic shapes when the operation and configuration of the clamp guide 500 are described.
- the base chassis 100 is provided with a fulcrum shaft 101 (L) and a fulcrum shaft 101 (R).
- the clamp arm 501 is an arm that is rotatably supported by the fulcrum shaft 101 (L) and the fulcrum shaft 101 (R) of the base chassis 100 and the clamp guide 500 is fixed by crimping.
- the clamp guide 500 is configured and arranged so as to constrain the peripheral end portion of the clamp portion 400.
- the bent portion 501A (L) and the bent portion 501A (R) are formed and arranged so as to be symmetrical with respect to the clamp portion 400.
- the clamp guide 500 is formed with a bent portion 500A (L) and a bent portion 500A (R).
- the bending portion 501A (L) and the bending portion 501A (R) are stacked above the bending portion 500A (L) and the bending portion 500A (R), so that the clamp arm 501 moves in the positive direction in the Z direction. Movement is restricted.
- the receiving portion 501B (L) and the receiving portion 501B (R) are formed and arranged so as to be symmetrical with respect to the clamp portion 400.
- the clamp guide 500 is formed with an arc-shaped bent portion 500B (L) and an arc-shaped bent portion 500B (R).
- the receiving portion 501B is laminated below the arc-shaped bent portion 500B (L) and the arc-shaped bent portion 500B (R), thereby restricting the movement of the clamp arm 501 in the negative direction in the Z direction. .
- a hole 501C (L) is provided for the left side bend, and a hole 501C (R) is provided for the right side bend (both not shown).
- a fulcrum shaft 101 (L) and a fulcrum shaft 101 (R) provided in the base chassis 100 are respectively fitted in a hole 501C (L) and a hole 501C (R) and supported rotatably.
- a shaft 102 is fixedly installed on one side of the clamp arm 501. The shaft 102 is in contact with the cam surface 502 ⁇ / b> A of the slider 502.
- the clamp guide 500 has a surface 500D formed at a position above the clamp portion 400.
- a bent portion 500A, a bent portion 500C, and a bent portion 500E are formed on the surface 500D at positions corresponding to the outer periphery of the center member 401 of the clamp portion 400.
- the outer shape of the substantially disc shape 401F of the center member 401 and the bent portion 500A, the bent portion 500C, and the bent portion 500E are in contact with each other, thereby restricting movement and backlash of the clamp portion 400 in the XY plane direction.
- an arc-shaped bent portion 500B (L) and an arc-shaped bent portion 500B (R) are formed and arranged so as to be symmetrical with respect to the clamp portion 400.
- the arc-shaped bent portion 500B is disposed below the elongate portion 402A of the suction target member 402 of the clamp portion 400 and in contact with the elongate portion 402A. Therefore, the movement of the clamp part 400 in the Z direction is restricted by the surface 500D on the upper side and restricted by the arc-shaped bent part 500B on the lower side.
- the clamp unit 400 is restrained by the clamp guide 500.
- the clearance between the clamp unit 400 and the clamp guide 500 can be stably secured, and the clamp unit 400 can be prevented from coming off the clamp guide 500 due to disturbance such as vibration.
- the slider 502, the motor 504 serving as a drive source for the slider 502, and the gear train 503 are installed on the base chassis 100.
- the driving force of the motor 504 is transmitted to the rack portion 502B of the slider 502 via the gear train 503. That is, the slider 502 and the gear train 503 are configured such that the slider 502 can move in the Y direction by forward and reverse rotation of the motor 504.
- the disk clamp unit 700 moves the slider 502 in the negative direction of the Y direction by driving the motor 504 when trying to bring the clamp unit 400 closer to the spindle motor 300.
- the shaft 102 joined to the cam surface 502A of the slider 502 moves in the negative Z direction along the cam surface 502A, and the clamp arm 501 rotates about the fulcrum shaft 101 as a support shaft.
- the clamp guide 500 and the clamp unit 400 approach the spindle motor 300.
- the disc clamp unit 700 tries to move the clamp unit 400 away from the spindle motor 300
- the disc 502 is moved in the positive direction of the Y direction by driving the motor 504 in the reverse direction.
- the shaft 102 joined to the cam surface 502A of the slider 502 moves in the positive Z direction along the cam surface 502A, and the clamp arm 501 rotates about the fulcrum shaft 101 as a fulcrum.
- the clamp guide 500 and the clamp part 400 are separated from the spindle motor 300.
- the disk 200 placed on the spindle motor 300 is sandwiched between the spindle motor 300 and the clamp unit 400.
- the configuration in which the disc 200 is clamped has been described with respect to the configuration in which the clamp unit 400 is moved in the Z direction by the movement of the slider 502 provided in the base chassis 100.
- the configuration is not limited thereto.
- the disk 200 can also be clamped by a configuration in which the base chassis 100 is moved in the Z direction with respect to the clamp unit 400.
- clamp arm 501 and the clamp guide 500 are configured as separate parts, the present invention is not limited to this.
- the clamp arm 501 and the clamp guide 500 are so-called the clamp arm 501 having the function of the clamp guide 500.
- An integral configuration may be used.
- the rotation shaft 300A of the spindle motor 300 and the protrusion 301C of the alignment ring 301 are formed on the annular protrusion 401A formed on the center member 401 of the clamp part 400. It fits in the space 401G.
- the present invention can provide a disc device that can further reduce the thickness of the clamp portion 400 and the centering configuration (disc clamp unit) of the clamp portion 400.
- the recess space formed by the annular protrusion of the clamp portion is fitted to the protrusion formed on the rotation shaft of the spindle motor and the alignment ring.
- the centering configuration of the clamp part can be reduced in thickness. That is, the disk device according to the present invention is useful as a disk device that can further reduce the thickness of the disk clamp unit.
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
Description
200 ディスク
300 スピンドルモータ
301 調芯リング
302 マグネット
400 クランプ部
401 センタ部材
402 被吸引部材
500 クランプガイド
501 クランプアーム
502 スライダ
503 ギヤ列
504 モータ
600 カーオーディオ装置
603 前面パネル
700 ディスククランプユニット
Claims (3)
- ディスクの定置および回転を行うスピンドルモータと、
前記スピンドルモータの回転軸に固定された調芯リングと、
前記ディスクを前記スピンドルモータ上に装着するクランプ部と、を備え、
前記調芯リングは、前記スピンドルモータの回転軸の周囲に形成された突起部と、前記突起部と空間を挟んで前記スピンドルモータの回転軸の周囲に設けられた磁気吸引手段と、を有し、
前記クランプ部は、前記突起部が嵌合する凹部空間が形成されたセンタ部材と、前記磁気吸引手段に吸引される被吸引部材と、を有し、前記突起部の前記凹部空間への嵌合と、前記磁気吸引手段から受ける吸引力とによって、前記ディスクを前記スピンドルモータ上に装着する、
ディスク装置。 - 前記センタ部材は、凹溝形状部を有し、
前記被吸引部材は、前記凹溝部形状部に係合可能な係合突起部を有し、
前記クランプ部は、前記凹溝形状部と前記係合突起部との係合により、前記センタ部材と前記被吸引部材とが組み合わされた構成を有する、
請求項1記載のディスク装置。 - 前記クランプ部を前記スピンドルモータに対して近接離反可能に保持するクランプガイド、を更に備え、
前記クランプ部は、前記スピンドルモータの回転に従って回転し、その回転中心において前記クランプガイドに接触する曲面凸部と、前記曲面凸部を囲んで設けられた凹溝と、を有する、
請求項1記載のディスク装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09833231.5A EP2375414A4 (en) | 2008-12-18 | 2009-12-18 | DISC DEVICE |
US13/059,105 US20110145845A1 (en) | 2008-12-18 | 2009-12-18 | Disk device |
CN2009801318076A CN102124521A (zh) | 2008-12-18 | 2009-12-18 | 光盘装置 |
JP2010542887A JPWO2010070924A1 (ja) | 2008-12-18 | 2009-12-18 | ディスク装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008322150 | 2008-12-18 | ||
JP2008-322150 | 2008-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010070924A1 true WO2010070924A1 (ja) | 2010-06-24 |
Family
ID=42268604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/007019 WO2010070924A1 (ja) | 2008-12-18 | 2009-12-18 | ディスク装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110145845A1 (ja) |
EP (1) | EP2375414A4 (ja) |
JP (1) | JPWO2010070924A1 (ja) |
CN (1) | CN102124521A (ja) |
WO (1) | WO2010070924A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1131350A (ja) * | 1997-07-09 | 1999-02-02 | Tanashin Denki Co | ディスククランプ機構 |
JP2002025159A (ja) * | 2000-06-30 | 2002-01-25 | Toshiba Corp | ディスク装置 |
JP2003228900A (ja) | 2002-01-31 | 2003-08-15 | Toshiba Corp | ディスクメディア装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US4502136A (en) * | 1983-04-04 | 1985-02-26 | Storage Technology Partners Ii | Apparatus for centering and clamping an information recording disk in a data storage device |
US5001700A (en) * | 1989-03-30 | 1991-03-19 | Literal Corporation | Disk clamp and centering apparatus for a beam addressable disk drive system |
JPH06349175A (ja) * | 1993-03-04 | 1994-12-22 | Seiko Epson Corp | 情報記録再生装置 |
US6438087B2 (en) * | 1997-11-25 | 2002-08-20 | Sony Corporation | Chucking device for disc drive |
KR100674306B1 (ko) * | 1999-08-20 | 2007-01-24 | 마츠시타 덴끼 산교 가부시키가이샤 | 디스크 유지 기구 및 디스크 유지 기구의 클램퍼 |
JP2001229595A (ja) * | 2000-02-10 | 2001-08-24 | Tanashin Denki Co | ディスククランプ装置 |
JP3913499B2 (ja) * | 2001-03-22 | 2007-05-09 | アルパイン株式会社 | ディスク装置 |
CN2636365Y (zh) * | 2003-06-05 | 2004-08-25 | 鸿富锦精密工业(深圳)有限公司 | 光盘记录/再现装置 |
JP2005100564A (ja) * | 2003-09-26 | 2005-04-14 | Orion Denki Kk | クランプ機構を備えたディスク装置 |
JP4370584B2 (ja) * | 2006-08-23 | 2009-11-25 | 日本ビクター株式会社 | ディスククランプ機構及びディスク駆動装置 |
JP4884479B2 (ja) * | 2006-11-15 | 2012-02-29 | パナソニック株式会社 | ディスク装置 |
-
2009
- 2009-12-18 EP EP09833231.5A patent/EP2375414A4/en not_active Withdrawn
- 2009-12-18 JP JP2010542887A patent/JPWO2010070924A1/ja active Pending
- 2009-12-18 US US13/059,105 patent/US20110145845A1/en not_active Abandoned
- 2009-12-18 WO PCT/JP2009/007019 patent/WO2010070924A1/ja active Application Filing
- 2009-12-18 CN CN2009801318076A patent/CN102124521A/zh active Pending
Patent Citations (3)
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JPH1131350A (ja) * | 1997-07-09 | 1999-02-02 | Tanashin Denki Co | ディスククランプ機構 |
JP2002025159A (ja) * | 2000-06-30 | 2002-01-25 | Toshiba Corp | ディスク装置 |
JP2003228900A (ja) | 2002-01-31 | 2003-08-15 | Toshiba Corp | ディスクメディア装置 |
Also Published As
Publication number | Publication date |
---|---|
CN102124521A (zh) | 2011-07-13 |
EP2375414A4 (en) | 2013-04-10 |
JPWO2010070924A1 (ja) | 2012-05-24 |
EP2375414A1 (en) | 2011-10-12 |
US20110145845A1 (en) | 2011-06-16 |
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