WO2005096309A1 - 記録媒体駆動装置 - Google Patents
記録媒体駆動装置 Download PDFInfo
- Publication number
- WO2005096309A1 WO2005096309A1 PCT/JP2005/006018 JP2005006018W WO2005096309A1 WO 2005096309 A1 WO2005096309 A1 WO 2005096309A1 JP 2005006018 W JP2005006018 W JP 2005006018W WO 2005096309 A1 WO2005096309 A1 WO 2005096309A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- recording medium
- cover
- tray
- disk
- flat
- Prior art date
Links
Classifications
-
- 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
-
- 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
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
Definitions
- the present invention relates to a recording medium drive that stores a disk-shaped recording medium in a tray.
- the recording medium drive includes a tray for mounting a disc-shaped recording medium such as a CD (Compact Disc) having an exposed recording surface, a tray for accommodating the tray together with the disc-shaped recording medium, and a disc inside the tray.
- a recording / reproducing mechanism for reading and writing by rotating a recording medium at high speed (Patent Document 1).
- some of the recording medium driving devices used in personal computers and the like have a recording / reproducing mechanism provided in the tray itself.
- a recording / reproducing mechanism As a recording / reproducing mechanism, a pickup mechanism for irradiating light to a disc-shaped recording medium, a pickup feeding mechanism for moving the pickup mechanism in a radial direction of the disc-shaped recording medium, and an upper surface of these mechanisms (disc-shaped recording medium) And a cover made of sheet metal to cover the side surface.
- This cover has a window cut out along the feed direction of the pickup mechanism so as not to block light emitted to the disk-shaped recording medium by the pickup mechanism.
- FIG. 1A shows a positional relationship between a conventional tray and a recording / reproducing mechanism.
- a recording / reproducing mechanism includes a base 100 provided with a pickup mechanism (not shown) constituting a pickup feed mechanism, and a guide rod 101 for guiding the base 100 along the radial direction of the disk-shaped recording medium. And a cover 102 is arranged above the base 100. A tray 103 is disposed above the cover 102!
- a gap D is formed between the cover 102 of the recording / reproducing mechanism and the tray 103.
- Patent Document 1 JP 2004-63003 (Fig. 1)
- the user may accidentally drop the recording medium driving device with the disk-shaped recording medium stored. Due to this drop, the edge of the window of the cover made of sheet metal may be momentarily turned up by an impact and may damage the recording surface of the disk-shaped recording medium. That is, as shown in FIG. 1B, since the cover 102 is formed thinly from sheet metal, its peripheral portion is bent by the impact of the drop, and hits the disk-shaped recording medium 105 stored in the tray 103.
- the thickness of the cover 102 itself may be increased, or a reinforcing member such as a rib may be attached to the cover to increase the rigidity of the cover 102. It cannot be adopted for a thin type.
- the present invention solves the above-mentioned problems, and provides a recording medium driving device that can reduce the thickness of the device and that does not damage the disk-shaped recording medium stored in the device when dropped. It is something to try.
- the invention described in claim 1 provides a tray for storing a disk-shaped recording medium, a pickup mechanism provided on the tray, for irradiating the disk-shaped recording medium with light, and a pickup for moving the pick-up mechanism.
- a recording / reproducing mechanism having a flat cover formed with a window cut out along a feeding direction of the pickup mechanism, wherein the flat cover is in a direction close to and away from the tray.
- the tray is elastically supported, and a recess is formed in the tray to allow the flat cover to move in the approaching / separating direction. At least one of the recess and the flat cover has the flat cover when a drop impact occurs.
- FIG. 1A is a cross-sectional view showing a positional relationship between a conventional tray and a recording / reproducing mechanism.
- FIG. 1B is a sectional view showing a state where the cover is deformed in the configuration of FIG. 1A.
- FIG. 2 is a plan view showing the overall configuration of the recording medium driving device according to the first embodiment of the present invention.
- FIG. 3A is a cross-sectional view of a main part of the first embodiment, taken along the line II-III in FIG.
- FIG. 3B is a sectional view showing a state where the cover is deformed in the configuration of FIG. 3A.
- FIG. 4 is a plan view showing the overall configuration of a recording medium driving device according to a second embodiment of the present invention.
- FIG. 5A is a cross-sectional view taken along a line VV in FIG. 4 and showing a main part of the second embodiment.
- FIG. 5B is a sectional view showing a state in which the cover has been deformed in the configuration of FIG. 5A.
- FIG. 6A is a sectional view showing a modification of the present invention.
- FIG. 6B is a cross-sectional view showing a state in which the cover has been deformed in the configuration of FIG. 6A.
- FIG. 7A is a sectional view showing a different modification of the present invention.
- FIG. 7B is a sectional view showing a state where the cover is deformed in the configuration of FIG. 7A.
- FIG. 2 and 3 show a recording medium driving device according to the first embodiment of the present invention.
- FIG. 2 is a plan view showing the entire configuration of the recording medium driving device.
- FIG. 3 is a sectional view taken along the line II-II in FIG. In FIG. 3, a part of the first embodiment is not shown.
- a recording medium driving device includes a case 1 having a storage space (not shown) formed therein, a tray 2 capable of being stored in the storage space of the case 1, and a rear surface of the tray 2. This is a so-called slim drive that is configured to be thin with the attached recording / reproducing mechanism 3.
- the case 1 includes a bottom plate (not shown) formed from a sheet metal or the like, a top plate 1A disposed opposite to the bottom plate, and a side plate (not shown) provided between the top plate 1A and the bottom plate.
- a bottom plate (not shown) formed from a sheet metal or the like
- a top plate 1A disposed opposite to the bottom plate
- a side plate (not shown) provided between the top plate 1A and the bottom plate.
- One of the sides is an opening for storing the tray 2.
- the tray 2 is formed from a synthetic resin or the like into a substantially planar rectangular shape, and has a planar portion 2A opposed to the planar surface of the disk-shaped recording medium 4, an outer surface of the planar portion 2A, and a disk-like shape.
- An upright portion 2C having a wall surface 2B facing the outer peripheral surface of the recording medium 4 and a bezel 22D attached to an end face of the upright portion 2C are provided.
- the plane portion 2A is provided with a window portion 2E for exposing a predetermined portion of the recording / reproducing mechanism 3 over a predetermined position of the central force wall surface 2B.
- disk-shaped recording medium 4 various types of optical disks such as CD (Compact Disc), MD (Mini Disc) ⁇ ⁇ DVD (Digital Versatile Disc), and Blu-ray, and magneto-optical disks or magnetic disks can be used.
- CD Compact Disc
- MD Mini Disc
- DVD Digital Versatile Disc
- Blu-ray magneto-optical disks or magnetic disks
- the recording / reproducing mechanism 3 includes a substantially disk-shaped disk holding unit 30 that holds the center of the disk-shaped recording medium 4, a pickup mechanism 31 that irradiates the disk-shaped recording medium 4 with light, and a pickup mechanism.
- a pick-up feed mechanism 32 for moving 31 and a flat plate-shaped cover 33 arranged on the tray side are provided.
- the disk holding section 30 is formed in a disk shape, and the center thereof is connected to a motor (not shown). When the motor is driven to rotate, the disk-shaped recording medium 4 held by the disk holding unit 30 rotates.
- the pickup mechanism 31 includes a base 31 A and an actuator provided on the base 31 A. 31B, and the actuator 31B has a movable portion 31D to which an objective lens 31C is attached.
- the pickup feed mechanism 32 includes a guide rod 32A that slidably supports both sides of the base 31A, a lead screw (not shown) that is arranged in parallel with one of the guide rods 32A, and is driven to rotate by a motor. And a locking portion (not shown) for transmitting the rotation of the lead screw.
- the plate-like cover 33 is also formed by sheet metal force, and has a window 33A cut out along the feed direction of the pickup mechanism 31 outward from the center thereof.
- the objective lens is made to face the recording surface of the disk-shaped recording medium 4 in the window 33A regardless of the advance / retreat position.
- the flat cover 33 is elastically supported in the approaching / separating direction (vertical direction) with respect to the tray 2.
- the tray 2 is formed with a concave portion that allows the flat cover 33 to move in the approaching / separating direction. I have.
- the outer edge of the flat cover 33 extends below the upright portion 2C, and the recess of the upright portion 2C protrudes toward the outer edge of the flat cover 33 as a cover deformation restricting portion. 5 are provided.
- the projections 5 are provided at two positions at positions facing each other with the window 33A interposed therebetween.
- the projections 5 are used to restrict the deformation of the flat cover 33 at the time of a drop impact of the apparatus and to prevent the flat cover 33 from coming into contact with the disk-shaped recording medium 4, and are formed of a substantially short rectangular solid cushion material. .
- the projections 5 are formed of elastic synthetic resin such as urethane foam, rubber, or another elastic material, and the upper surface thereof is adhered and fixed to the lower surface of the rising portion 2C of the tray 2 with an adhesive or the like.
- FIG. 3 shows the positional relationship between the tray 2 and the recording / reproducing mechanism 3.
- the thickness dimension of the protrusion 5 (the lower surface force of the upright portion 2C of the tray up to the lower surface of the protrusion 5) is tl, and the position PL of the lower surface of the disc-shaped recording medium 4 and the tray If the dimension between the upright portion 2C and the lower surface of 2C is t2, tl> t2.
- the edge of the window 33A of the flat cover 33 is closed. Even if the paper rolls up at the time of a drop impact, this edge will hit the projection 5 and will not hit the lower surface (recording surface) of the disc-shaped recording medium 4 and damage the recording surface (see FIG. 3B).
- the recording surface (lower surface) of the disk-shaped recording medium 4 is generally considered to be a virtual flat surface having no curvature
- the position PL of the lower surface of the disk-shaped recording medium 4 is It is the position of the upper surface.
- the recording surface of the disk-shaped recording medium 4 is warped, although it is minute.
- the dimension t3 is set to be larger than the movement dimension t4 of the edge of the window 33A turned up by (t3> t4) G
- a gap t3 is formed between the protrusion 5 and the disk-shaped recording medium 4 to allow vibration when the recording / reproducing mechanism 3 is driven.
- the tray 33 is supported naturally in the approaching / separating direction with respect to the tray 2, and the tray 2 is formed with a concave portion which allows the flat cover 33 to move in the approaching / separating direction.
- a cover deformation restricting portion is provided to restrict the deformation of the flat cover 33 at the time of impact and to prevent the flat cover 33 from coming into contact with the disk-shaped recording medium.
- the edge of the window 33A of the flat cover 33 is turned up by an impact when the device in which the disc-shaped recording medium 4 is stored is dropped, this edge contacts the cover deformation restricting portion.
- the radius of the recording surface of the disk-shaped recording medium 4 that is most easily damaged is also restricted.
- the flat cover 33 itself can adopt a conventional structure.In order to prevent the recording surface of the disk-shaped recording medium 4 from being damaged, the thickness of the ribs and the like is increased. It is not necessary to provide it on the flat cover 33 Thus, the entire device can be made thinner.
- a gap t3 is formed between the cover deformation restricting portion and the flat cover 33 so as to allow vibration when the recording / reproducing mechanism 3 is driven. That is, the gap between the cover deformation restricting portion and the flat cover 33 is not closed, and a gap that allows vibration when the recording / reproducing mechanism 3 is driven is left. Therefore, even if the recording / reproducing mechanism 3 vibrates in the thickness direction (vertical direction) while the disk-shaped recording medium 4 is rotationally driven, the vibration is not transmitted to the tray 2.
- the vibration of the recording / reproducing mechanism 3 is not transmitted to the entire apparatus via the tray 2, the noise caused by the vibration can be reduced.
- the tray 2 has a flat portion 2A facing the flat surface of the disc-shaped recording medium 4 and a wall surface 2B rising from the flat portion 2A and facing the outer peripheral surface of the disc-shaped recording medium 4.
- the protrusion 5 provided with the upright portion 2C and protruding toward the flat cover 33 side of the upright portion 2C was used as a cover deformation restricting portion. Therefore, the cover deformation restricting portion can be formed with a simple configuration in which the protrusion 5 is provided on the upright portion 2C formed in advance on the tray 2.
- the projections 5 are formed by the cushioning force, even if the edge of the window 33A of the flat cover 33 comes into contact with the projections 5 when the device falls, the projections 5 may be elastically deformed. Thus, the collision noise generated at the time of contact without damaging the projection 5 or the flat cover 33 can be reduced.
- Two protrusions 5 are provided in the vicinity of the window 33A at positions opposing each other across the window 33A. For this reason, since the projection 5 is provided near the edge of the window 33A, which is most likely to curl, of the flat cover 33, curling near the edge can be more effectively prevented.
- the second embodiment differs from the first embodiment in the structure of the cover deformation restricting portion, and the other structure is the same as the first embodiment.
- FIG. 4 is a plan view showing the overall configuration of a recording medium driving device according to a second embodiment
- FIG. 5 is a cross-sectional view taken along line VV in FIG. 4 showing a main part of the second embodiment. is there. Note that FIG. 5 does not show a part of the first embodiment.
- the recording medium driving device has a tray 2 that can be stored in the storage space of the case 1 as in the first embodiment. It is a slim drive with attached.
- the tray 2 of the second embodiment includes the upright portion 2C of the first embodiment and a thick portion 2D integrally formed along the circumferential direction of the wall surface 2B below the upright portion 2C.
- the thick portion 2D, the upright portion 2C, and the flat portion 2A are integrally formed from synthetic resin by injection molding or the like.
- the thick portion 2D is a hard cover deformation restricting portion.
- the thick portion 2D which is the cover deformation restricting portion, has a thickness dimension of tl, and has a disk-shaped recording medium 4D.
- the flat cover 33 vibrates up and down in FIG.
- the dimension t3 is set to be larger than the movement dimension t4 of the edge that is turned up by the vibration (t3> t4). That is, a gap t3 is formed between the thick portion 2D and the disc-shaped recording medium 4 to allow the recording / reproducing mechanism 3 to vibrate when driven.
- the cover deformation restricting portion is formed integrally with the wall 2B of the upright portion 2C along the circumferential direction of the wall 2B. Meat part 2D. Therefore, the cover deformation restricting portion is formed at the same time as the manufacture of the tray 2, so that the cover deformation restricting portion is easily formed.
- the recording medium driving device of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the spirit of the present invention.
- the dimension t3 is provided between the lower surface of the projection 5 and the upper surface of the flat cover 33.
- the protrusions 5 are molded with the cushion material, the vibrations at the time of driving the recording / reproducing mechanism 3 can be absorbed by the protrusions 5, so that the driving noise can be reduced.
- the cover deformation restricting portion is the two-point projection 5 provided on the lower surface of the upright portion 2C.
- the cover deformation restricting portion may be composed of a band-shaped member 50 provided on the lower surface of the portion 2C.
- the band-shaped member 50 is formed from a cushion material having a rectangular cross section, and is adhered and fixed to the lower surface of the upright portion 2C along the wall surface 2B of the tray. In this way, the use of the band-shaped member 50 ensures that even if any part of the flat cover 33 is rolled up when the apparatus is dropped, the plate-shaped cover 33 always comes into contact with the band-shaped member 50. Surface damage can be more reliably prevented.
- the number of protrusions is not limited to two, but may be one, three, four, five or more. In this case, the place where the projections 5 are arranged can be set as appropriate.
- a hard member may be used instead of the cushion material as the material of the protrusion 5 and the band-shaped member 50.
- the cover deformation restricting portion may be provided on the flat cover 33, or may be provided on both the tray 2 and the flat cover 33.
- the recording medium drive of the present embodiment includes a tray 2 in which a disc-shaped recording medium 4 is stored, A pickup mechanism 31 provided on the tray 2 for irradiating the disk-shaped recording medium 4 with light, a pickup feed mechanism 32 for moving the pickup mechanism 31, and a window 33A cut out along the feed direction of the pickup mechanism 31 are provided.
- a recording / reproducing mechanism 3 having a formed flat cover 33, the flat cover 33 is elastically supported in the direction of approaching and separating from the tray 2; A concave portion that allows movement in the separation direction is formed, and at least one of the concave portion and the flat cover 33 restricts deformation of the flat cover 33 at the time of a drop impact, thereby preventing the flat cover 33 from coming into contact with the disk-shaped recording medium.
- the first deformation restricting portion is provided, even if the edge of the window 33A of the flat cover 33 is turned up by an impact when the device in which the disk-shaped recording medium 4 is housed is dropped. When the edge contacts the cover deformation restricting portions 5 and 50, the recording surface of the disk-shaped recording medium 4 is most easily damaged and the radius of the portion is also regulated. Does not hurt.
- the flat cover 33 itself can adopt a conventional structure, and the thickness of the ribs and the like is increased to prevent the recording surface of the disk-shaped recording medium 4 from being damaged. Since the device need not be provided on the flat cover 33, the entire device can be made thinner.
- the present invention can be used as a recording medium drive that stores a disk-shaped recording medium in a tray.
Landscapes
- Feeding And Guiding Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006511703A JP4445964B2 (ja) | 2004-03-31 | 2005-03-30 | 記録媒体駆動装置 |
US10/590,726 US7401344B2 (en) | 2004-03-31 | 2005-03-30 | Recording medium driving device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-103581 | 2004-03-31 | ||
JP2004103581 | 2004-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005096309A1 true WO2005096309A1 (ja) | 2005-10-13 |
Family
ID=35064042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/006018 WO2005096309A1 (ja) | 2004-03-31 | 2005-03-30 | 記録媒体駆動装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7401344B2 (ja) |
JP (1) | JP4445964B2 (ja) |
WO (1) | WO2005096309A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI276070B (en) * | 2005-11-04 | 2007-03-11 | Lite On It Corp | Optical disc drive |
GB2484673A (en) * | 2010-10-18 | 2012-04-25 | Univ Dublin City | A photoacoustic inspection device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10143965A (ja) * | 1996-11-08 | 1998-05-29 | Teac Corp | ディスク装置 |
JP2003242763A (ja) * | 2002-02-13 | 2003-08-29 | Teac Corp | ディスク装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004063003A (ja) | 2002-07-29 | 2004-02-26 | Pioneer Electronic Corp | ピックアップ送り機構およびこれを備えたディスク装置 |
US7342849B2 (en) * | 2003-01-31 | 2008-03-11 | Sony Corporation | Recording and/or playback device |
TWI261230B (en) * | 2003-06-18 | 2006-09-01 | Lite On It Corp | Tray locking mechanism for the slim type optical disc device |
JP2005129202A (ja) * | 2003-10-02 | 2005-05-19 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JP2006309906A (ja) * | 2005-03-28 | 2006-11-09 | Hitachi-Lg Data Storage Inc | 光ディスク装置 |
TWI269270B (en) * | 2005-08-01 | 2006-12-21 | Asustek Comp Inc | Apparatus and method of ejecting a disc for a disc drive |
-
2005
- 2005-03-30 WO PCT/JP2005/006018 patent/WO2005096309A1/ja active Application Filing
- 2005-03-30 US US10/590,726 patent/US7401344B2/en not_active Expired - Fee Related
- 2005-03-30 JP JP2006511703A patent/JP4445964B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10143965A (ja) * | 1996-11-08 | 1998-05-29 | Teac Corp | ディスク装置 |
JP2003242763A (ja) * | 2002-02-13 | 2003-08-29 | Teac Corp | ディスク装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005096309A1 (ja) | 2008-02-21 |
US20070214464A1 (en) | 2007-09-13 |
US7401344B2 (en) | 2008-07-15 |
JP4445964B2 (ja) | 2010-04-07 |
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