WO2006054620A1 - ディスクドライブ装置 - Google Patents
ディスクドライブ装置 Download PDFInfo
- Publication number
- WO2006054620A1 WO2006054620A1 PCT/JP2005/021088 JP2005021088W WO2006054620A1 WO 2006054620 A1 WO2006054620 A1 WO 2006054620A1 JP 2005021088 W JP2005021088 W JP 2005021088W WO 2006054620 A1 WO2006054620 A1 WO 2006054620A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brake pad
- disk
- drive device
- disk drive
- prevention means
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/22—Brakes other than speed-regulating brakes
-
- 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
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
- G11B17/051—Direct insertion, i.e. without external loading means
Definitions
- the present invention for example, rotates a disc such as a DVD mounted on a movable plate such as a tray at high speed to reproduce information recorded on the recording surface of the disc, or records information on the recording surface.
- a thin drawer type (Drawer type, drawer type) disk drive device that can be built into a thin laptop computer case has been developed. More specifically, in the drawer type disk drive device, a movable plate is installed on which the disk is slid in the ejection or insertion direction. In this movable plate, the optical disk is rotated at a high speed by, for example, a spindle motor.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-197779
- Patent Document 2 JP-A-7-210984
- the brake pad described above is an elastic body having a rectangular parallelepiped shape, for example, and is attached to the side surface of the disk drive with an adhesive such as a bond or a double-sided tape.
- this brake pad is not sufficient for fixing with only this adhesive force, and a disc rotating with a large inertia force proportional to high-speed rotation in the recording / reproducing operation and the brake pad There is a technical problem that it may be peeled off by the friction force generated between them.
- an object of the present invention is to provide a disk drive device that can more reliably stop the rotation of the disk, for example.
- the disk drive device of the present invention can be loaded with a disk.
- the disk drive device is in a closed state (load state) in which the disk is rotated and an open state (unload state) in which the disk is inserted or ejected
- a cabinet capable of accommodating the movable plate, and the cabinet (base chassis), and a transition from the closed state to the open state with respect to the movable plate.
- a disk such as a DVD-R or a DVD-ROM is accommodated in the movable plate, and recording or reproduction by the semiconductor laser is performed on this disk (loading).
- the disc In the state), the disc is rotating at a high speed of, for example, 8 times or more.
- the brake pad and the disc are not in contact.
- the brake pad can be pushed in by means of peeling prevention means such as a groove (in other words, a recess) in a sheet-shaped member. Therefore, the brake pads can be removed almost or completely with the following two forces.
- the force is (i) the adhesive force provided by an adhesive such as a bond or double-sided tape provided between the brake pad and the cabinet, and (ii) the aforementioned peeling prevention means. .
- the peeling prevention means compresses the brake pad so as not to peel off by coming into contact with a friction surface (braking surface) that contacts the disk.
- the corner portion of the brake pad having a rectangular parallelepiped shape can be dropped, in other words, rounded and fitted.
- the brake pad is dragged by the rotation of the disk, and the degree of force to be peeled off can be further reduced.
- the peeling prevention means is a position where the peeling prevention means abuts at a position close to the top surface of the brake pad, and a position near the bottom surface of the brake pad. And other peeling prevention means in contact therewith.
- the brake pad can be peeled off almost or completely by the following three forces.
- the three forces are: (i) the adhesive force provided by an adhesive, such as a bond, provided between the brake pad and the cabinet, and (ii) the one peeling prevention means is applied to the force that pushes the brake pad. (Iii) Other peeling prevention means force This is the force that pushes the brake pad.
- the peeling prevention means has a sheet shape for preventing scratches on the recording or reproducing surface of the disk or the label surface.
- the peeling prevention means may be in the form of a sheet along the outer peripheral edge of the disc, for example. Therefore, it is possible to support the outer peripheral edge of the disk even when a vertical impact occurs due to vibration or the like to the disk drive device. Accordingly, it is possible to prevent the middle peripheral portion including the data area, etc., on which the recording signal such as data is recorded or reproduced, included in the disc, from coming into contact with the cabinet. In other words, it is possible to prevent scratching on the recording or reproducing surface of the disc or the label surface.
- the peeling prevention means may be configured to have a groove (a depression) for allowing the brake pad to be fitted and for compressing to the side that is difficult to peel off. .
- the peeling prevention means can more easily push the brake pad.
- the peeling prevention means is a groove (a diaphragm) provided on the inner surface of the cabinet and capable of fitting the brake pad.
- the material cost of the member to be pushed in can be reduced. Furthermore, since it is possible to omit the process of attaching the member to be pushed in, it is possible to prevent an error in the attachment position.
- the peeling prevention means is a cut-and-raised portion provided on an inner surface of the cabinet and capable of fitting the brake pad.
- the material cost of the member to be pushed in can be reduced. Furthermore, since it is possible to omit the process of attaching the member to be pushed in, it is possible to prevent an error in the attachment position.
- the brake pad is an elastic body having a rectangular parallelepiped shape
- the peeling prevention means includes: (i) the disk and the brake pad. (Ii) through the flat surface, it is in contact with the brake pad and compressed to the side where it is difficult to peel off.
- the peeling prevention means can push in the brake pad, which is an elastic body having a rectangular parallelepiped shape, for example, by a plane in the groove portion (in other words, the recessed portion) in the sheet-shaped member. It is. Therefore, the peeling prevention means pushes against the brake pad while reducing the force to be peeled off, so that the brake pad can be hardly or completely removed.
- the brake pad contacts an outer peripheral side end surface of the disk when the opening operation is performed.
- the disk drive device of the present invention includes the movable plate, the cabinet, the brake pad, and the peeling prevention means. Therefore, the rotation of the disk can be stopped more reliably.
- FIG. 2 is a horizontal sectional view (upper part) schematically showing the positional relationship.
- FIG. 4 A horizontal sectional view (FIG. 4 (a)) in which the groove of the BC sheet is partially enlarged before the brake pad according to the first embodiment of the disc drive device of the present invention is fitted, and the brake.
- Fig. 4 (b) shows a partially enlarged horizontal cross-sectional view of the BC sheet after the node is inserted.
- FIG. 5 is a horizontal sectional view (upper part) schematically showing the BC seat and the base chassis after the brake pads according to the comparative example are installed, and a vertical sectional view (lower side) corresponding to the upper part. Part).
- FIG. 6 is a partially enlarged horizontal sectional view of a BC seat and a base chassis after a brake pad according to a comparative example is installed.
- FIG. 7 is a horizontal sectional view (FIG. 7 (a)) in which a groove of a BC sheet is partially enlarged before the brake pad according to the second embodiment of the disk drive device of the present invention is fitted, and the brake pad.
- Fig. 7 is a horizontal cross-sectional view (Fig. 7 (b)) with a partially enlarged view of the BC sheet after the door is inserted.
- FIG. 8 is a partially enlarged vertical sectional view of a brake pad, two BC seats, and a base chassis after a brake pad according to a third embodiment of the disk drive device of the present invention is fitted.
- FIG. 9 is a partially enlarged vertical sectional view of a specific example of the brake pad and the base chassis after the brake pad according to the fourth embodiment of the disk drive device of the present invention is fitted (FIG. 9 (a )), And a vertical sectional view partially enlarged (FIG. 9 (b)).
- FIG. 1 shows the load state (ie, the closed state) to the unload state (ie, the closed state) according to the disk drive device of the present invention.
- FIG. 3 is an external perspective view schematically showing a movable plate that transitions to an open state and a relative positional relationship between the movable plate and the base chassis.
- FIG. 2 shows an optical disk mounted on the movable plate when the ejection is started from the loaded state (corresponding to FIG. 1 (a)) according to the first embodiment of the disk drive device of the present invention, and
- the horizontal cross-sectional view (upper part) schematically showing the relative positional relationship with the brake pads installed on the chassis, and the vertical cross-sectional view (bottom view) from the viewpoint “A” corresponding to the upper part. Side part).
- the broken line in FIG. 2 corresponds to the broken line in FIG. 3 described later.
- FIG. 3 is a horizontal sectional view schematically showing the configuration of the brake pad according to the present invention.
- FIG. 4 is a horizontal sectional view partially enlarging the groove of the BC sheet before the brake pad according to the first embodiment of the disk drive device of the present invention is fitted, and a vertical sectional view corresponding to the horizontal sectional view.
- Fig. 4 (a) a horizontal cross-sectional view in which the BC seat after the brake pad is fitted partially enlarged, and a vertical cross-sectional view corresponding to the horizontal cross-sectional view
- the vertical sectional view is cut by a vertical plane “B”.
- a control IC Integrated Circuit
- a drawer-type disk drive device equipped with an integrated drive unit.
- the first embodiment of the disk drive device 100 of the present invention is capable of (i) accommodating an information recording medium such as an optical disk 10,
- an information recording medium such as an optical disk 10
- a base chassis 104 to be configured is provided. [0046] (1 2) Principle of operation
- the relative positional relationship between the movable plate 101 and the base chassis 104 is, for example, a port where recording or reproduction is performed on the optical disc 10 or the like.
- the optical disk 10 is rotating at high speed.
- the optical disk 10 rotates at a high speed, for example, in the rotation direction of the arrow AR2 in FIG.
- the brake pad 102 and the optical disk 10 are not in contact with each other.
- the distance between the optical disc 10 and the BC sheet may be about 0.5 mm to 1.0 mm!
- the brake pad 102 is a rectangular parallelepiped, for example, and is an elastic body that can be deformed by an external pressure. More specifically, one member 102a that abuts on the optical disc 10 and another member 102b that absorbs a compressive force applied to the one member may be used. Further, the material of the one member may be felt, for example, in order to make it difficult to peel off from the base chassis. Alternatively, the material of the one member may be, for example, silicon rubber in order to increase the effect of reducing the rotation speed of the optical disc 10, that is, to increase the braking effect. On the other hand, the material of the other member 102b may be a sponge in order to absorb the compressing force more.
- the brake node 102 is provided in the groove (in other words, the recess) 103a of the BC sheet 103. Can be pushed in. Therefore, as shown in Fig. 4 (b), the brake pad 102 can be peeled off almost or completely by the following two forces. Become. The force is (i) the adhesive force of an adhesive such as a bond or double-sided tape provided between the brake pad 102 and the base chassis 104, and (ii) the groove portion of the BC sheet 103 1 03a force Brake pad The force that pushes 102.
- the force is (i) the adhesive force of an adhesive such as a bond or double-sided tape provided between the brake pad 102 and the base chassis 104, and (ii) the groove portion of the BC sheet 103 1 03a force Brake pad The force that pushes 102.
- the BC sheet 103 may have a shape along the outer peripheral edge of the optical disc 10, for example, as shown in FIG. Therefore, for example, even when a vertical impact is generated on the disk drive device 100 due to vibration or the like, the outer peripheral edge of the optical disk 10 can be supported. Therefore, it is possible to prevent the middle peripheral portion including the data area in which a recording signal such as data is recorded or reproduced, which is included in the disc, from coming into contact with the base chassis 104. In other words, it is possible to prevent scratches on the recording or reproducing surface or the label surface of the optical disc 10.
- FIG. 5 is a horizontal sectional view (upper part) schematically showing the BC seat and the base chassis after the brake pads according to the comparative example are installed, and a vertical sectional view corresponding to the upper part. It is a figure (lower part). Note that the vertical sectional view is cut by a vertical plane “C”.
- the broken line in FIG. 5 corresponds to the broken line in FIG.
- FIG. 6 is a partially enlarged horizontal sectional view of the BC seat and the base chassis after the brake pads according to the comparative example are installed.
- the brake pad 102 according to the comparative example is directly fixed to the BC sheet 103 and the inner wall of the base chassis 104 only by the adhesive force of an adhesive such as a bond or double-sided tape.
- an adhesive such as a bond or double-sided tape.
- this brake pad is insufficient to be fixed only by this adhesive force, and a disc rotating by a large inertia force proportional to the high-speed rotation in the recording / reproducing operation, There is a possibility that the frictional force generated between the brake pad and the brake pad may come off.
- the groove portion (in other words, the recessed portion) 103a of the BC sheet 103 In this case, the brake pad 102 can be pushed in. Therefore, it is shown in Figure 4 (b).
- the brake pad 102 is peeled off in the following manner: (ii) Adhesive force of adhesive such as a bond or double-sided tape provided between the brake pad 102 and the base chassis 104, and (ii) BC sheet
- Adhesive force of adhesive such as a bond or double-sided tape provided between the brake pad 102 and the base chassis 104
- BC sheet The groove 103a force of 103 can be almost or completely eliminated by the force of pushing the brake pad 102.
- the rotation of the optical disc 10 can be stopped more reliably. Therefore, when the optical disk 10 is ejected, the user can prevent dangers such as injury to the hand by the disk rotating with a large inertia force proportional to the high speed rotation in the recording / reproducing operation.
- FIG. 7 is a horizontal sectional view (FIG. 7 (a)) in which the groove of the BC sheet is partially enlarged before the brake pad according to the second embodiment of the disk drive device of the present invention is fitted
- Fig. 7 is a horizontal cross-sectional view (Fig. 7 (b)) showing a partially enlarged view of the BC sheet after the brake pads are fitted.
- FIG. 8 is a partially enlarged vertical sectional view of the brake pad, the two BC seats, and the base chassis after the brake pad according to the third embodiment of the disk drive device of the present invention is fitted. It is.
- the brake pad 102 can be peeled off almost or completely by the following three forces. It becomes possible.
- the three forces are (i) the adhesive force of an adhesive such as a bond provided between the brake pad 102 and the base chassis 104, and (ii) the BC sheet 10 3-1 force. In addition to the pushing force, it is the force that pushes the same sheet 103-2 double brake pad 102.
- the rotation of the optical disc 10 can be stopped more reliably. Therefore, when the optical disc 10 is ejected, it is possible to prevent the user from being injured by hand, for example, by the rotation of the optical disc 10.
- FIG. 9 is a partially enlarged vertical sectional view of a specific example of the brake pad and the base chassis after the brake pad according to the fourth embodiment of the disk drive device of the present invention is fitted.
- one cut-and-raised portion 104a in the base chassis 104 is a brake pad 102. Can be pushed in.
- the brake pad 102 can be pushed into another cut-and-raised portion 104b located at a position facing the one cut-and-raised portion 104a.
- one throttle portion 104c in the base chassis 104 is used. But Bray It is possible to fix the keypad 102 in the horizontal direction. Further, the brake pad 102 can also be fixed in the horizontal direction by the other throttle part 104d located at the position facing the one throttle part 104c.
- the base chassis 104 is swung so that the shape for pushing the brake pad 102 is formed without adding the above-described member such as the BC sheet.
- the brake pad 102 The member that pushes in is integrally processed with the base chassis 104.
- the base chassis 104 may be made of a material such as aluminum in order to make it easy to process the cut-and-raised portion 104a and the throttle portion 104c.
- the material cost of the member to be pushed in can be reduced. Furthermore, since it is possible to omit the process of attaching the member to be pushed in, it is possible to prevent an error in the attachment position.
- the disk drive device As an example of the disk drive device, a drawer-type disk drive device that has been adopted as, for example, a built-in disk drive device of a thin laptop computer has been described.
- the present invention is not limited to such a disk drive device but can be applied to a drive device for discharging and inserting a rotating body.
- the disc drive device is mounted on a movable plate such as a tray, for example, and rotates a disc such as a DVD at high speed to reproduce information recorded on the recording surface of the disc, or It can be used for a disk drive device capable of recording information on the recording surface.
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- Rotational Drive Of Disk (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004333285 | 2004-11-17 | ||
JP2004-333285 | 2004-11-17 |
Publications (1)
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WO2006054620A1 true WO2006054620A1 (ja) | 2006-05-26 |
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Family Applications (1)
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PCT/JP2005/021088 WO2006054620A1 (ja) | 2004-11-17 | 2005-11-17 | ディスクドライブ装置 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09213000A (ja) * | 1996-02-09 | 1997-08-15 | Teac Corp | ディスク装置 |
JPH09212999A (ja) * | 1996-02-05 | 1997-08-15 | Sanyo Electric Co Ltd | ディスク再生装置 |
JPH11167766A (ja) * | 1997-12-04 | 1999-06-22 | Matsushita Electric Ind Co Ltd | ディスク装置 |
JP2003151205A (ja) * | 2001-11-08 | 2003-05-23 | Teac Corp | ディスク装置 |
-
2005
- 2005-11-17 WO PCT/JP2005/021088 patent/WO2006054620A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09212999A (ja) * | 1996-02-05 | 1997-08-15 | Sanyo Electric Co Ltd | ディスク再生装置 |
JPH09213000A (ja) * | 1996-02-09 | 1997-08-15 | Teac Corp | ディスク装置 |
JPH11167766A (ja) * | 1997-12-04 | 1999-06-22 | Matsushita Electric Ind Co Ltd | ディスク装置 |
JP2003151205A (ja) * | 2001-11-08 | 2003-05-23 | Teac Corp | ディスク装置 |
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