WO2003071540A1 - Disk cartridge - Google Patents
Disk cartridge Download PDFInfo
- Publication number
- WO2003071540A1 WO2003071540A1 PCT/KR2003/000287 KR0300287W WO03071540A1 WO 2003071540 A1 WO2003071540 A1 WO 2003071540A1 KR 0300287 W KR0300287 W KR 0300287W WO 03071540 A1 WO03071540 A1 WO 03071540A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disk
- shutter
- case
- cover
- disk cartridge
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 15
- 230000002265 prevention Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/03—Containers for flat record carriers
- G11B23/0301—Details
- G11B23/0313—Container cases
- G11B23/0316—Constructional details, e.g. shape
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/03—Containers for flat record carriers
- G11B23/0301—Details
- G11B23/0308—Shutters
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/03—Containers for flat record carriers
- G11B23/0301—Details
- G11B23/0317—Containers with interchangeable record carriers
Definitions
- the present invention relates to a disk cartridge for protecting a recording surface of an accommodated disk that is an information recording/reproduction medium from contaminants such as dust or finger print.
- a disk cartridge accommodates a disk that is an information recording/reproduction medium and is installed in a disk drive.
- a conventional disk cartridge 100 includes a case 101 for accommodating a disk D, a shutter 110 installed in the case 101 to be capable of rotating for selectively opening or shutting an opening hole 102 formed in the case 101 so that a pickup (not shown) of a disk drive can access the disk D, and a cover 103 fixed to the upper portion of the case 101.
- Reference numeral 103b denotes an open hole formed in the cover 103 for disk exchange and clamping.
- Reference numeral 103a denotes an escape prevention lever installed at the cover 103 to be capable of sliding to prevent the disk D from escaping through the open hole 103b.
- the . escape prevention lever 103a is pulled back not to interfere with the disk D.
- the escape prevention lever 103a is push forward so that an end portion of the escape prevention lever 103a prevents the disk D from escaping through the open hole 103b.
- an opening lever 120 installed at the disk drive pushes a locking piece 111a so that a protrusion 111c of the shutter 110 is unlocked from a groove 101a of the case 101. Then, the opening lever 120 pushes an interference piece 111 b to have the shutter 110 pivot around left and right pivot axes 110a.
- the shutter 110 is formed of first and second shutter portions 111 and 112 respectively
- the first shutter portion 111 incorporated with the interference piece 111b rotates clockwise
- the second shutter portion 112 rotates counterclockwise so that the first and second shutter portions 111 and 112 are separated apart from each other and the opening hole 102 opens.
- a turntable (not shown) and a clamper (not shown) of the disk drive enter through the opening hole 102 and the open hole 103a to clamp the disk D.
- a pickup (not shown) accesses a recording surface of the disk D to perform an information recording and/or reproduction process.
- a torsion spring for elastically biasing the first shutter portion 111 in a counterclockwise direction on the drawings, that is, in a direction to close the opening hole 102, is installed between the first shutter portion 111 and the bottom surface of the case 101.
- the shutter 110 is installed in the case 101 and the disk D is placed on the shutter 110, during the opening/shutting operation of the shutter 110, the shutter 110 contacts the recording surface of the disk D (a lower surface of a disk in the drawings) so that the recording surface of the disk D may be scratched by the shutter 110 and damaged.
- the shutter 1 10 when the shutter 110 is pressed hard through the opening hole 102 in the state in which the shutter 1 10 is closed, the shutter 1 10 is easily deformed. That is, since each of the first and second shutter portions 1 1 1 1 and 1 12 is supported as one end thereof being coupled to be capable of pivoting around the pivot axis 110a, when a user presses the other end of the shutter 110 through the opening hole 102, the shutter 1 10 is easily deformed. As a result, the opening/shutting operation does not performed properly. If the opening/shutting operation is properly performed, a gap is generated between the first and second shutter portions 1 1 1 and 1 12 which may prevent a function as a shutter.
- a disk cartridge comprising a case for accommodating a disk, a cover, installed at the case to be capable of being open and shut and having an open hole formed therein open to the outside, a shutter, installed under the disk in the case to be capable of moving, for opening/shutting an opening hole formed in the case, and a clamping member, installed at the cover to seal the open hole, for clamping the disk.
- a disk cartridge comprising a case for accommodating a disk, a cover, installed on an upper surface of the case to be capable of being open and shut, for
- a shutter installed under the disk in the case to be capable of moving, for opening/shutting an opening hole formed in the case, and a clamping member, installed on an inner surface of the cover, for clamping the disk.
- FIG. 1 is a perspective view of a conventional disk cartridge
- FIGS. 2A and 2B are views showing the state of opening/shutting of a shutter of the disk cartridge shown in FIG. 1 ;
- FIG. 3 is an exploded perspective view of a disk cartridge according to a preferred embodiment of the present invention.
- FIG. 4 is a perspective view showing an assembled state of the disk cartridge of FIG. 3;
- FIG. 5 is a plan view showing the state in which the shutter is closed in the disk cartridge of FIG. 3;
- FIG. 6 is a plan view showing the state in which the shutter is open in the disk cartridge of FIG. 3;
- FIG. 7 is a sectional view taken along line A-A' of FIG. 5;
- FIG. 8 is a sectional view taken along line B-B' of FIG. 5;
- FIG. 9 is a sectional view taken along line C-C of FIG. 5;
- FIG. 10 is a view showing the state in which a disk is clamped in the disk cartridge of FIG. 3;
- FIG. 1 1 is a view showing the state in which a clamping holder is clamped in the disk cartridge of FIG. 3;
- FIG. 12 is an exploded perspective view of a disk cartridge according to another preferred embodiment of the present invention.
- FIG. 13 is a view showing the state in which a disk is clamped in the disk cartridge of FIG. 12.
- FIG. 14 is a view showing the state in which a clamping holder is clamped in the disk cartridge of FIG. 12.
- FIGS. 3 and 4 show the states in which a disk cartridge according to a preferred embodiment of the present invention is disassembled and assembled, respectively.
- a case 201 for accommodating a disk D a shutter 210 for opening/shutting an opening hole 202 formed in the case 201 under the disk D, a cover 203 for covering the upper surface of the case 201 , and a clamping member 240 installed at the cover 203 to seal an open hole 203a.
- the clamping member 240 has a function of clamping the disk D like a clamper of a conventional disk drive and simultaneously has a function of closely blocking the open hole 203a. That is, in the present structure, a member having a function of clamping is installed at the cover 203, not at the disk drive, and simultaneously has a function of sealing the open hole 203a. A detailed description thereof will be described later.
- the shutter 210 is formed of first and second shutter portions
- connection portion 213 denotes a connection portion for making the first and second shutter portions 211 and 212 interact. Accordingly, as the first shutter portion 211 pivots, the second shutter portion 212 pivots in the opposite direction by means of the connection portion 213.
- the shutter 210 returns to the original closed position.
- Protrusions 230 and 220 contacting an edge portion D3 of the outer circumference of the disk D are formed at the first and second shutter portions 211 and 212, respectively. That is, the disk D includes a clamping area D1 at the inner circumference, an information area D2 where information is recorded, and an edge portion D3 disposed outside the information area D2.
- the protrusions 220 and 230 have inclined surfaces 221 and 321 that are inclined toward the center of the accommodated disk D, respectively.
- the edge portion D3 of the disk D is supported by the upper ends of the protrusions 220 and 230.
- the first and second shutter portions 211 and 212 are open, as shown in FIG. 6, the disk D is lowered along the inclined surfaces 221 and 231.
- the clamping area D1 of the lowered disk D at the inner circumference thereof is supported by the protrusion 205 formed at the case 201. As the shutter 210 is closed, the disk D is raised and the clamping member 240 closely contacts the clamping area D1 thereof, as shown in FIG. 5.
- a support member 207 is provided at the lower surface of each of the first and second shutter portions 211 and 212, that is the opposite surface to the surface where the disk D is accommodated, so that it is inserted into a guide slot 206 formed in the case 201 to be capable of sliding.
- the guide slot 206 is formed along a track in which the support member 207 moves during pivot of the first and second shutter portions 211 and 212.
- the support member 207 slides along the guide slot 206.
- An end portion 207a of the support member 207 inserted into the guide slot 206 is caught by a contact portion 206a of the guide slot 206, as shown in FIG. 7.
- the shutter 210 is prevented from being deformed inwardly in the case 201.
- the end portion 207a may be formed to protrude outward the case 201
- an accommodation portion 206b connected to the guide slot 206 is formed in the case 207a so that the end portion 207a does not protrude above the outer surface of the case 201 , as shown in the drawing.
- a coupling protrusion 21 1 a and a coupling groove 212a coupled together are formed at the position where the first and second shutter portions 21 1 and 212 closely contact, as shown in FIG. 8.
- the coupling protrusion 211 a and a coupling groove 212a coupled each other lowers the possibility of deformation of the shutter 210 when the external force in the direction F is applied, compared to the case in which the first and second shutter portions 211 and 212 are separated.
- the coupling protrusion can be formed at the second shutter portion 212 and the coupling groove can be formed at the first shutter portion 21 1.
- the clamping member 240 prevents intrusion of foreign materials such as dust by completely closing the open hole 203a of the cover 203 and clamps the disk D if necessary.
- the clamping member 240 includes a clamping holder 241 supporting an edge portion of the open hole 203a, a yoke 242 installed at the clamping holder 241 , a cover 243 for completely covering the open hole 203a from above the clamping holder 241.
- the open hole 203a is completely sealed by the clamping member 240, dust cannot intrude through the open hole 203a.
- the cover 203 is open and the disk D is replaced by a new disk, as shown in FIG. 4.
- the clamping holder 241 When the disk D in the case 201 is raised, the clamping holder 241 closely contacts the clamping area D1 of the disk D, as shown in FIG. 1 1.
- the disk D is raised when the disk D is raised along the inclined surfaces 221 and 231 as the first and second shutter portions 211 and 212 are closed as shown in FIG. 11.
- the disk D is raised, as shown in FIG. 10, when a turntable T enters through the opening hole 202 to perform a recording/reproduction process in the disk drive so that the disk D accommodated on the turntable T is raised.
- a magnetic attraction is generated between the yoke 242 and the magnet T1 installed at the turntable T which serves as a force to clamp the disk D.
- Reference numeral 211b denotes a locking piece provided at the fist shutter portion 211 and has a locking hook 211c that is elastically coupled to a locking groove 212b' formed in a locking protrusion 212b of the second shutter portion 212 when the opening hole 202 is closed.
- the disk cartridge having the disk D installed therein enters the disk drive in the state in which the shutter 210 and the cover 203 are all closed, as shown in FIG. 5.
- the opening lever 120 installed the disk drive pushes the locking piece 211 b to unlock the locking hook 211 c from the locking groove 212b' and push the locking protrusion 212b where the locking groove 212b' is formed, thus pivoting the second shutter portion 212 in a clockwise direction on the drawing.
- the first shutter portion 211 pivots in the counterclockwise direction by being engaged by means of the connection portion 213.
- the opening hole 202 is open between the first and second shutter portions 211 and 212.
- the protrusions 230 and 220 of the first and second shutter portions 211 and 212 only contact the disk D, and since the contact area is limited to the edge portion D3 of the disk D that is a non-information area, the information area of the recording surface of the disk D is hardly damaged during the opening/shutting operation of the shutter 201.
- the disk D is lowered along the inclined surfaces 221 and 231 of the protrusions 220 and 230 and are temporarily supported by the upper surface of the protrusion 205 and the inclined surfaces 221 and 231 , as shown in FIGS. 6 and 9.
- a turntable (not shown) for driving a disk of the disk drive enters through the opening hole 202 and clamps the disk D supported by the protrusion 205 and the inclined surfaces 221 and 231 against the clamping member 240, as shown in FIG. 10. Then, the turntable rotates and the recording/reproduction operation is performed with respect to the disk D.
- the turntable is lowered and the clamping against the clamping member 240 is removed.
- the non-information areas D1 and D3 of the disk D are supported by the protrusion 205 and the inclined surfaces 221 and 231.
- the disk cartridge is drawn from the disk drive, the first and second shutter portions 211 and 212 return to their original positions so that the opening hole 202 is closed.
- the edge portion D3 at the outer circumference of the disk D is raised along the inclined surfaces 221 and 231 of the protrusions 220 and 230, back to the state shown in FIG. 5. Since the shutting operation is made while the shutter 210 does not contact the information area D2, the information area D2 can be safely kept.
- the disk D rises along the inclined surfaces 221 and 231 and pushes the clamping holder 241 supporting the edge portion of the open hole 203a to closely contact the cover 243, as shown in FIG. 11. That is, the clamping holder 241 is clamped between the disk D and the cover 243.
- the clamping holder 241 since the clamping holder 241 is not moved, a phenomenon that the clamping holder 241 bumps against other elements such as the cover 203 and the cover 243 in the disk cartridge and makes a noise can be prevented.
- FIGS. 12 through 14 show a disk cartridge according to another preferred embodiment of the present invention.
- the same reference numerals indicate the same members having the same functions.
- a disk cartridge of the present embodiment has the structure similar to that of the previous embodiment. However, there is no hole such as the open hole 203a in a cover 203', and a clamping member 240' is installed at the inner surface of the cover 203'. That is, in the present preferred embodiment, since an open hole through which dust can intrude is not formed in the cover 203' at all, a completely closed state is maintained at the side of the cover 203'. Since the cover 203' has no open hole, the clamping member 240' is installed at the inner surface of the cover 203'.
- the clamping member 240' includes the yoke 242, the clamping holder 241 , and a ring member 244 attached to the inner surface of the cover 203'.
- the clamping holder 241 is supported as it contacts an edge portion of the ring member 244.
- the disk cartridge according to the present invention has the following effects.
- the disk drive can be made simplified and slim.
- the shutter in the case is formed to contact only the non-information area of a disk, during the opening/shutting operation of the opening hole, the information area of the disk can be safely kept.
- the cover since the cover is installed at the case to be capable of being open and shut, a disk can be easily replaced.
Landscapes
- Feeding And Guiding Record Carriers (AREA)
- Packaging For Recording Disks (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003208039A AU2003208039A1 (en) | 2002-02-19 | 2003-02-10 | Disk cartridge |
JP2003570350A JP2005518623A (en) | 2002-02-19 | 2003-02-10 | Disc cartridge |
EP03705441A EP1476867A4 (en) | 2002-02-19 | 2003-02-10 | Disk cartridge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020008781A KR100850704B1 (en) | 2002-02-19 | 2002-02-19 | A disk cartridge |
KR2002/008781 | 2002-02-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003071540A1 true WO2003071540A1 (en) | 2003-08-28 |
Family
ID=27751898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2003/000287 WO2003071540A1 (en) | 2002-02-19 | 2003-02-10 | Disk cartridge |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1476867A4 (en) |
JP (1) | JP2005518623A (en) |
KR (1) | KR100850704B1 (en) |
CN (1) | CN1305070C (en) |
AU (1) | AU2003208039A1 (en) |
MY (1) | MY139065A (en) |
TW (1) | TWI243361B (en) |
WO (1) | WO2003071540A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8149535B2 (en) | 2008-11-26 | 2012-04-03 | Hitachi Global Storage Technologies, Netherlands B.V. | Magnetic and encapsulation contamination control for disk drives |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR880010410A (en) * | 1987-02-02 | 1988-10-08 | 오오가 노리오 | Disc cartridge |
US5537389A (en) * | 1992-11-30 | 1996-07-16 | Hitachi Maxwell, Ltd. | Disk cartridge having a single closing energizer for closing two independently opened shutters |
US5793742A (en) * | 1994-03-18 | 1998-08-11 | Opticord, Inc. | Protective cartridge for rewritable optical disk |
KR100268255B1 (en) * | 1997-12-02 | 2000-10-16 | 윤종용 | Clamping apparatus of an optical disk |
JP2001105216A (en) * | 1999-10-01 | 2001-04-17 | Akio Takewa | Stepping rotating cutting device |
WO2002056313A1 (en) * | 2001-01-12 | 2002-07-18 | Matsushita Electric Industrial Co., Ltd. | Disc cartridge |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9307293D0 (en) * | 1993-04-07 | 1993-06-02 | Newell Terence J | Optical compact disc sotrage and loading cassette |
TW238381B (en) * | 1993-10-29 | 1995-01-11 | Ibm | Optical data storage cartridge system |
KR19990086978A (en) * | 1998-05-23 | 1999-12-15 | 윤종용 | Cartridge for recording medium with recognition hole opening means |
JPH11339425A (en) * | 1999-04-28 | 1999-12-10 | Hitachi Maxell Ltd | Disc cartridge |
JP3532793B2 (en) * | 1999-05-28 | 2004-05-31 | パイオニア株式会社 | Storage case for disk-type recording media |
JP2001283556A (en) * | 2000-03-31 | 2001-10-12 | Sony Corp | Disk cartridge |
TW522385B (en) * | 2000-05-17 | 2003-03-01 | Sony Corp | Disk cartridge |
KR200268255Y1 (en) * | 2001-12-29 | 2002-03-15 | 엘지전자주식회사 | Sound apparatus of atm |
-
2002
- 2002-02-19 KR KR1020020008781A patent/KR100850704B1/en not_active IP Right Cessation
-
2003
- 2003-01-28 MY MYPI20030274A patent/MY139065A/en unknown
- 2003-02-07 TW TW092102504A patent/TWI243361B/en not_active IP Right Cessation
- 2003-02-10 WO PCT/KR2003/000287 patent/WO2003071540A1/en not_active Application Discontinuation
- 2003-02-10 CN CNB038086891A patent/CN1305070C/en not_active Expired - Fee Related
- 2003-02-10 AU AU2003208039A patent/AU2003208039A1/en not_active Abandoned
- 2003-02-10 EP EP03705441A patent/EP1476867A4/en not_active Withdrawn
- 2003-02-10 JP JP2003570350A patent/JP2005518623A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR880010410A (en) * | 1987-02-02 | 1988-10-08 | 오오가 노리오 | Disc cartridge |
US5537389A (en) * | 1992-11-30 | 1996-07-16 | Hitachi Maxwell, Ltd. | Disk cartridge having a single closing energizer for closing two independently opened shutters |
US5793742A (en) * | 1994-03-18 | 1998-08-11 | Opticord, Inc. | Protective cartridge for rewritable optical disk |
KR100268255B1 (en) * | 1997-12-02 | 2000-10-16 | 윤종용 | Clamping apparatus of an optical disk |
JP2001105216A (en) * | 1999-10-01 | 2001-04-17 | Akio Takewa | Stepping rotating cutting device |
WO2002056313A1 (en) * | 2001-01-12 | 2002-07-18 | Matsushita Electric Industrial Co., Ltd. | Disc cartridge |
Non-Patent Citations (1)
Title |
---|
See also references of EP1476867A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8149535B2 (en) | 2008-11-26 | 2012-04-03 | Hitachi Global Storage Technologies, Netherlands B.V. | Magnetic and encapsulation contamination control for disk drives |
Also Published As
Publication number | Publication date |
---|---|
MY139065A (en) | 2009-08-28 |
TW200303529A (en) | 2003-09-01 |
EP1476867A1 (en) | 2004-11-17 |
CN1305070C (en) | 2007-03-14 |
JP2005518623A (en) | 2005-06-23 |
CN1647199A (en) | 2005-07-27 |
KR20030069294A (en) | 2003-08-27 |
AU2003208039A1 (en) | 2003-09-09 |
KR100850704B1 (en) | 2008-08-06 |
EP1476867A4 (en) | 2006-10-25 |
TWI243361B (en) | 2005-11-11 |
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