WO2002077990A1 - Dispositif de blocage de disque - Google Patents
Dispositif de blocage de disque Download PDFInfo
- Publication number
- WO2002077990A1 WO2002077990A1 PCT/JP2002/001619 JP0201619W WO02077990A1 WO 2002077990 A1 WO2002077990 A1 WO 2002077990A1 JP 0201619 W JP0201619 W JP 0201619W WO 02077990 A1 WO02077990 A1 WO 02077990A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clamper
- disk
- spring member
- leaf spring
- arm
- 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
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
-
- 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 reproducing apparatus, and more particularly to a disk clamping apparatus for clamping a disk between a turntable for driving a disk and a clamper.
- Fig. 5 shows an example of a disk clamp device of a conventional disk player.
- a disk motor 2 is fixed to a reproducing unit chassis 1 shown in this figure, and a turntable 3 is fixed to a rotating shaft of the disk motor 2.
- the clamper arm 10 is rotatably supported by the reproducing unit chassis 1, and is rotated in the direction A in the figure by a drive mechanism (not shown).
- the clamper arm 10 supports the clamper 6, and lifts the clamper 6 above the turntable 3 at the time of unclamping in the state shown in FIG.
- the conventional disk clamp device shown in Fig. 5 has a problem that the height a of the space for transporting the disk is smaller than the overall height H during unclamping because the clamper is inclined during unclamping. .
- FIG. 6 shows another example of the conventional disk clamp device.
- members having the same functions as those shown in FIG. 5 are denoted by the same reference numerals, and detailed description thereof will be omitted.
- the upper chassis 11 that holds the clamper 6 is supported by the playback unit chassis 1 so as to be able to move up and down, and the slider 12 is moved in the direction B shown in the drawing.
- the up-chassis 11 is configured to be driven in the vertical direction (direction C in the figure).
- the clamper In the conventional disk clamping device shown in Fig. 6, the clamper is held horizontally during unclamping, so that the height b of the space for transporting the disk can be increased relative to the overall height H during unclamping. Although it is possible, the number of parts of the vertical drive mechanism of the upper chassis 11 increases, which causes a problem that the manufacturing cost increases.
- the disc clamp device proposed in Japanese Patent Application Laid-Open No. Hei 9-171801 employs a structure in which a clamper arm is fastened to a rigid member and a leaf spring member capable of being deformed in a unidirectional manner. By holding the clamper and rotating the rigid member, the clamp / unclamp operation is performed. It is configured to be elastically deformed.
- the disk clamping device can increase the height of the space for transporting the disk relative to the overall height, yet however t number of parts can be reduced, in this apparatus, members the plate spring member rigid during clamping The plate is held down in a cantilevered state, so the plate thickness of the leaf spring member must be increased in order to apply large pressure to the clamper, and the leaf spring member is elastically deformed during unclamping.
- a large driving force is required.
- the present invention has been made in view of the above points, and has as its object a simple configuration, a small number of parts, and a height of a space for transporting a disk with respect to the entire height.
- An object of the present invention is to provide a disk clamp device that can secure a large amount of force and requires only a small driving force in the operation of the clamp / anch ramp. Disclosure of the invention
- the disc clamping device of the present invention is rotated in a direction approaching the table and a direction away from the table.
- a leaf spring member partially fixed to the clamper arm, lifting the clamper at the time of unclamping, and pressing the upper center of the clamper toward the turntable at the time of clamping; and a portion of the leaf spring member supporting the clamp.
- a tongue provided on the clamper arm for holding both sides, so that the leaf spring member is elastically deformed by the reaction of the fixing member during unclamping.
- the elastic deformation of the spring member is caused by a force when the leaf spring member is pressed against the fixing member.
- the elastic deformation of the spring member is caused by an anti-force when the clamper is pressed against the spring member.
- the disk clamp device of the present invention adopts the above-described configuration, in the unclamped state, the movement of the leaf spring is restricted by the fixing member and is elastically deformed, so that the clamper is kept horizontal. This makes it possible to increase the vertical width of the disk transport space relative to the overall height.
- the leaf spring member is configured such that both sides of a portion for holding the clamper are pressed by a tongue piece provided at a distal end portion of the clamper arm. For this reason, in the clamped state, the leaf spring member presses the clamper in a double-supported state, so that the plate thickness of the leaf spring member can be reduced.
- the leaf spring member in the unclamp state, can be elastically deformed with a small force (because the leaf spring has a small thickness), and the driving force of the clamp / unclamp can be reduced.
- the clamp / unclamp operation of the present invention is performed by the rotation of the clamper arm.
- the mechanism is extremely simple, and can be manufactured with a small number of parts, so that the manufacturing cost can be reduced.
- FIG. 1 is a partial sectional view showing a disk clamp device according to a first embodiment of the present invention.
- FIG. 2 is a plan view showing a portion connected to a clamper arm in the disc clamp device.
- FIG. 3 is a cross-sectional view of the structure shown in FIG. 2 as viewed from below (toward the paper).
- FIG. 4 is a partial sectional view showing a disk clamp device according to a second embodiment of the present invention.
- FIG. 5 is a side view showing an example of a conventional disk clamp device.
- Figure 6 is an embodiment of the other c invention is a side view showing an example of a conventional disk clamping device
- FIG. 1 is a partial sectional view showing a disk clamp device according to a first embodiment of the present invention
- FIG. 2 is a plan view showing a part of the disk clamp device.
- parts having the same functions as those shown in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.
- the rigid clamp arm 4 shown in FIGS. 1 and 2 is rotatably supported by the reproducing unit chassis 1, and is rotated in the direction A by a drive mechanism (not shown).
- a leaf spring member 5 is positioned on the clamper arm 4 and fastened with a screw 7.
- the leaf spring member 5 is provided with a pair of L-shaped tongue pieces 5b and 5b 'extending downward so as to face the lower side thereof. These tongue pieces 5b, 5b 'are located below the flange 6b of the clamper 6, and lift the clamper 6 when the clamper arm 4 is rotated upward.
- the lower surface of the distal end of the leaf spring member 5 faces the center projection 6a of the clamper 6, and when the clamper arm 4 is rotated downward, this lower surface The clamper 6 is pressed against the disk by pressing the center projection 6a of the damper 6 so as to be in a clamped state.
- a pair of tongue pieces 4a, 4a 'extending in an L-shape are provided below the tip of the clamp arm 4. These tongues 4a and 4a 'respectively press the tongues 5a and 5a' of the leaf spring member 5 on both sides of the portion that presses the central projection 6a, thereby holding the leaf spring member 5
- the clamper 6 can be held down in a double-supported state.
- the leaf spring member 5 is restricted from moving by the fixing member 8.
- the leaf spring member is elastically deformed and holds the clamper 6 horizontally. Therefore, the height of the disk transfer space can be made higher than the entire height.
- the leaf spring member 5 since the leaf spring member 5 employs a structure that presses the clamper 6 in a two-sided state, the plate thickness of the leaf spring member can be reduced. In the unclamped state, the leaf spring member 5 can be elastically deformed with a small force, and the driving force of the clamp and the unclamping can be reduced.
- FIG. 4 is a partial sectional view showing a disk clamp device according to a second embodiment of the present invention.
- parts having the same functions as those shown in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.
- the movement of the clamper 6 is restricted by the fixing member 9 in the unclamped state in which the clamp arm 4 is rotated clockwise. Therefore, when the clamper 6 is pressed against the fixing member, the leaf spring member 5 is elastically deformed and holds the clamper 6 horizontally. Therefore, it is possible to increase the height of the disk transfer space with respect to the entire height.
- the clamper 6 In such an unclamped state, the clamper 6 is pressed against the leaf spring member 5 by the elastic force of the leaf spring member 5, so that there is no gap between the clamper 6 and the in-vehicle device. Even when the main body vibrates like a vessel, there is an advantage that no collision noise occurs between the clamper 6 and the leaf spring member 5.
- the leaf spring member 5 presses the clamper 6 in a double-supported state
- the plate thickness of the leaf spring member can be reduced. Therefore, the leaf spring member 5 can be elastically deformed with a small force in the unclamped state, and the driving force of the clamp / unclamp can be reduced, as in the first embodiment.
- the disk clamp device of the present invention the disk is clamped and unclamped by the rotating operation of the clamp, so that the mechanism is simple and the manufacturing cost can be reduced.
- the structure in which the leaf spring member presses the clamper in a double-supported state is adopted, so the thickness of the leaf spring member can be reduced.
- the driving force of the clamp / unclamp can be reduced.
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020027015500A KR100816233B1 (ko) | 2001-03-23 | 2002-02-22 | 디스크 클램프 장치 |
EP02700717A EP1387356B1 (en) | 2001-03-23 | 2002-02-22 | Disk clamping device |
US10/296,315 US6983474B2 (en) | 2001-03-23 | 2002-02-22 | Disk clamping device |
DE60232507T DE60232507D1 (de) | 2001-03-23 | 2002-02-22 | Platten-einklemmvorrichtung |
DE0001387356T DE02700717T1 (de) | 2001-03-23 | 2002-02-22 | Platten-einklemmvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001084277A JP3704479B2 (ja) | 2001-03-23 | 2001-03-23 | ディスククランプ装置 |
JP2001-084277 | 2001-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002077990A1 true WO2002077990A1 (fr) | 2002-10-03 |
Family
ID=18939969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/001619 WO2002077990A1 (fr) | 2001-03-23 | 2002-02-22 | Dispositif de blocage de disque |
Country Status (7)
Country | Link |
---|---|
US (1) | US6983474B2 (ja) |
EP (1) | EP1387356B1 (ja) |
JP (1) | JP3704479B2 (ja) |
KR (1) | KR100816233B1 (ja) |
CN (1) | CN1237533C (ja) |
DE (2) | DE60232507D1 (ja) |
WO (1) | WO2002077990A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004049324A1 (ja) * | 2002-11-28 | 2004-06-10 | Sanyo Electric Co., Ltd. | ディスクプレーヤ |
JP2004178723A (ja) * | 2002-11-28 | 2004-06-24 | Sanyo Electric Co Ltd | ディスクプレーヤ |
US7454765B2 (en) * | 2003-07-09 | 2008-11-18 | Samsung Electronics Co., Ltd. | Optical disc drive |
JP4597503B2 (ja) | 2003-10-20 | 2010-12-15 | パナソニック株式会社 | ディスク装置 |
JP4246144B2 (ja) * | 2004-12-13 | 2009-04-02 | パナソニック株式会社 | ディスククランプ装置 |
TWI258123B (en) * | 2005-02-03 | 2006-07-11 | Lite On It Corp | Apparatus for positioning a clamper of a disc driver |
JP2007193853A (ja) | 2006-01-16 | 2007-08-02 | Fujitsu Ten Ltd | ディスク再生装置 |
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 |
JP6124654B2 (ja) * | 2013-04-04 | 2017-05-10 | アルパイン株式会社 | ディスク装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0239343U (ja) * | 1988-09-09 | 1990-03-16 | ||
JPH0917081A (ja) * | 1995-06-29 | 1997-01-17 | Matsushita Electric Ind Co Ltd | ディスククランプ装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6222263A (ja) * | 1985-07-22 | 1987-01-30 | Canon Electronics Inc | 記録媒体クランプ装置 |
JPH0239343A (ja) | 1988-07-29 | 1990-02-08 | Fujitsu Ltd | 送受信バッファリング制御方式 |
JPH0732730A (ja) | 1993-07-20 | 1995-02-03 | New Oji Paper Co Ltd | 感圧記録体 |
KR100202021B1 (ko) | 1996-09-30 | 1999-06-15 | 전주범 | 광디스크 플레이어의 클램핑장치 |
JPH1131350A (ja) * | 1997-07-09 | 1999-02-02 | Tanashin Denki Co | ディスククランプ機構 |
JP3713154B2 (ja) * | 1998-11-27 | 2005-11-02 | 株式会社ケンウッド | ディスク装置のディスククランプ機構 |
-
2001
- 2001-03-23 JP JP2001084277A patent/JP3704479B2/ja not_active Expired - Fee Related
-
2002
- 2002-02-22 WO PCT/JP2002/001619 patent/WO2002077990A1/ja active Application Filing
- 2002-02-22 US US10/296,315 patent/US6983474B2/en not_active Expired - Lifetime
- 2002-02-22 DE DE60232507T patent/DE60232507D1/de not_active Expired - Lifetime
- 2002-02-22 DE DE0001387356T patent/DE02700717T1/de active Pending
- 2002-02-22 EP EP02700717A patent/EP1387356B1/en not_active Expired - Fee Related
- 2002-02-22 KR KR1020027015500A patent/KR100816233B1/ko active IP Right Grant
- 2002-02-22 CN CNB028007727A patent/CN1237533C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0239343U (ja) * | 1988-09-09 | 1990-03-16 | ||
JPH0917081A (ja) * | 1995-06-29 | 1997-01-17 | Matsushita Electric Ind Co Ltd | ディスククランプ装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1387356A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR100816233B1 (ko) | 2008-03-21 |
EP1387356B1 (en) | 2009-06-03 |
DE02700717T1 (de) | 2004-07-15 |
CN1459103A (zh) | 2003-11-26 |
US6983474B2 (en) | 2006-01-03 |
US20030133398A1 (en) | 2003-07-17 |
JP2002288907A (ja) | 2002-10-04 |
JP3704479B2 (ja) | 2005-10-12 |
EP1387356A4 (en) | 2008-08-20 |
KR20030009491A (ko) | 2003-01-29 |
CN1237533C (zh) | 2006-01-18 |
EP1387356A1 (en) | 2004-02-04 |
DE60232507D1 (de) | 2009-07-16 |
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