WO1999010889A1 - Supporting structure of floating chassis of disc apparatus - Google Patents
Supporting structure of floating chassis of disc apparatus Download PDFInfo
- Publication number
- WO1999010889A1 WO1999010889A1 PCT/JP1998/003550 JP9803550W WO9910889A1 WO 1999010889 A1 WO1999010889 A1 WO 1999010889A1 JP 9803550 W JP9803550 W JP 9803550W WO 9910889 A1 WO9910889 A1 WO 9910889A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chassis
- disc
- damper
- floating
- support mechanism
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 210000002105 tongue Anatomy 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- VYQRBKCKQCRYEE-UHFFFAOYSA-N ctk1a7239 Chemical compound C12=CC=CC=C2N2CC=CC3=NC=CC1=C32 VYQRBKCKQCRYEE-UHFFFAOYSA-N 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- 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
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0211—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for record carriers apparatus, e.g. video recorders, tape players or CD players
-
- 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
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
- G11B33/123—Mounting arrangements of constructional parts onto a chassis
- G11B33/124—Mounting arrangements of constructional parts onto a chassis of the single recording/reproducing device, e.g. disk drive, onto a chassis
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
Definitions
- the present invention relates to a disc apparatus such as CD players, and more particularly to a floating chassis support mechanism suitable for a vehicle mount disc apparatus.
- the present invention also relates to a vehicle mount disc reproduction apparatus in which a reproduction unit chassis is supported in a floating state by a main chassis with springs and dampers, and more particularly to a lock position of the reproduction unit chassis when a disk is unloaded or loaded.
- a floating chassis 11 shown in Figs. 11 and 12 supports thereon a disc motor 7, a pickup 9, and a pickup transport mechanism.
- the floating chassis is supported in a floating state by a main chassis (not shown) by dampers 4, 4, 4 and unrepresented coil springs during disk reproducing. At least one of the dampers 4, 4, 4 is disposed in a projection area of a disc during disk reproducing.
- the floating chassis 11 In loading/unloading a disc 15, the floating chassis 11 is locked to the main chassis by an unrepresented lock mechanism, and the disc 15 is squeezed between a disk guide 1 and a disc transport roller 2 and transported between a reproduction position and a disk insert port while the disk transport roller 2 rotates.
- the transport roller 2 lowers and detaches from the disc 15 and the lock mechanism releases a lock of the floating chassis 11. Thereafter, the disc 15 is clamped between a turntable 8 fixedly connected to a rotary shaft of the disc motor 7 and an unrepresented clamper and then it is rotated.
- the optical pickup 9 is fed along a disc radial direction to reproduce information from the disc.
- H2 is a thickness of the floating chassis 11
- H3 is a thickness from the lower surface of the floating chassis 11 to the lower surface of the disc 15. Since the depth from the upper surface of the disc 15 to the lower surface of the damper 4 is large, the total height of the apparatus becomes large.
- the invention has been made under the above- described circumstances. It is therefore an object of the invention to provide a floating chassis support mechanism for disc apparatuses capable of thinning the apparatus by reducing the necessary size from the upper surface of a loaded disc to the lower surface of a damper.
- a floating chassis support mechanism for a disc apparatus of this invention for supporting a floating chassis with springs and dampers vertically from the opposite side of a loaded disc
- the dampers are disposed outside of a projection area of the disc, and an area of the floating chassis supported by the dampers is retracted toward the disk side more than a lower surface of the disc.
- the damper is fitted in a tubular portion of a main chassis and a damper pusher is fitted in the main chassis to push a bottom surface of the damper and mount the damper on the main chassis.
- the spring for supporting the floating chassis is fitted around an outer wall of the tubular portion of the main chassis, and engaged with a projection formed on the tubular portion.
- a vehicle mount disc reproduction apparatus with the floating chassis support mechanism of this invention having a reproduction unit chassis supported in a floating state by a main chassis with springs and dampers, the reproduction unit chassis is locked to the main chassis in a state shifted toward a disc insert port when a disk is loaded or unloaded.
- FIG. 1 is a plan view of a floating chassis support mechanism for vehicle mount CD players according to an embodiment of the invention.
- Fig. 2 is a side view showing the outline structure of a vehicle mount CD player.
- Fig. 3 is a cross sectional view taken along 3-3 in Fig. 1.
- Fig. 4 is a perspective view of a mount for damper of a main chassis of the vehicle mount CD player.
- Fig. 5A is a plan view showing a mount for damper of a main chassis of the vehicle mount CD player
- Fig. 5B is an enlarged cross sectional view taken along 5B-5B in Fig. 5A.
- Fig. 6 is a cross sectional view taken along 6-6 in Fig. 5A.
- Fig. 7 is a broken view showing main parts of the vehicle mount CD player.
- Fig. 8 is a plan view illustrating a reproduction state of a vehicle mount disc reproduction apparatus.
- Fig. 9 is a plan view of the conventional vehicle mount disc reproduction apparatus when a disk is loaded or unloaded.
- Fig. 10A is a plan view showing the outline structure of a vehicle mount disc reproduction apparatus according to an embodiment of the invention.
- Figs. 10B to 10D are diagrams illustrating the outline of the operation of a lock of a vehicle mount disc reproduction apparatus of the invention.
- Fig. 11 is a plan view showing an example of a conventional floating chassis support mechanism for vehicle mount CD players.
- Fig. 12 is a side view showing the outline structure of the vehicle mount CD player.
- Fig. 13 is a cross sectional view taken along 13-13 in Fig. 11.
- a floating chassis support mechanism for vehicle mount CD players will be described with reference to Figs. 1 to 7.
- a floating chassis 3 shown in Figs. 1 and 2 supports thereon a disc motor 7, a pickup 9, and a pickup transport mechanism.
- the floating chassis is supported in a floating state by a main chassis 10 shown in Figs.
- dampers 4, 4, 4 are disposed outside of a projection area of a disc during disk reproducing.
- a lock mechanism 25, 21a shown in Figs. 10B to 10D
- the disc 15 is squeezed between a disk guide 1 and a disc transport roller 2 and transported between a reproduction position and a disk insert port while the disk transport roller 2 rotates .
- the transport roller 2 lowers and detaches from the disc 15 and the lock mechanism (25, 21a) releases a lock of the floating chassis 3.
- the disc 15 is clamped between a turntable 8 fixedly connected to a rotary shaft of the disc motor 7 and an unrepresented clamper and then it is rotated.
- the optical pickup 9 is fed along a disc radial direction to reproduce information from the disc.
- Fig. 4 shows a mount of the damper 4, the mount being formed on the main chassis 10.
- the main chassis 10 is formed with a tubular portion 10a and a flange 10b integral with the tubular portion 10a.
- the tubular portion 10a is formed with projections lOd, lOd extending outward.
- the flange 10b is formed with three projections 10c, 10c, 10c. In Fig. 4, two projections 10c, 10c are shown.
- Fig. 7 illustrates a disassembled state of the damper 4 and the coil spring 5.
- the damper 4 shown in Fig. 7 is an envelope made of elastic material such as rubber in which viscous fluid is hermetically filled, and has a recess 4a formed in the head thereof. A shaft 3a mounted upright on the floating chassis 3 is inserted into this recess 4a.
- the damper 4 is inserted into the main chassis 10 and fixed thereto with a damper pusher 6 fitted in the main chassis 10.
- the damper pusher 6 is made of a plate spring and has three tongues bent from the bottom thereof, the tongues being formed with holes 6a, 6a, 6a. As shown in Fig.
- damper 4 can be mounted on the main chassis 10 with ease by inserting the damper 4 into the main chassis 10 and fitting the damper pusher 6 into the main chassis 10. Since the damper pusher 6 is made of a plate spring, the mount area for the damper 4 can be made thin.
- the damper pusher 6 may be made of a resin mold.
- the coil spring 5 is extended between the main chassis 10 and the floating chassis 3. As shown in Fig. 5B, the lower end of the coil spring 5 engages with a projection lOd of the main chassis 10. Since the coil spring 5 can be temporarily engaged with the projection lOd, an assembly work becomes easy.
- Fig. 6 shows a mount state of the damper 4 and coil spring 5.
- a distance hi from the upper surface of the disc 15 to the upper surface of the floating chassis 3 corresponds to Hi of the conventional example shown in Fig. 13.
- the distance from the upper surface of the disc 15 to the lower surface of the damper 4 can be shortened by this distance hi. Accordingly, the apparatus can be thinned more than a conventional apparatus by the distance hi shown in Fig. 3.
- a vehicle mount acoustic apparatus is housed in a space having a width of 180 mm and a height of 50 mm.
- the height of a vehicle mount CD player embodying the present invention was possible to be set to 25 mm, irrespective of a use of a large stroke damper for vehicle mount apparatuses .
- a vehicle mount apparatus using a large stroke damper can be thinned.
- An assembly work of a damper mechanism such as dampers and coil springs becomes easy.
- a disc reproduction apparatus with a floating chassis support mechanism of this invention an example of a vehicle mount disc reproduction apparatus in which a reproduction unit chassis is supported in a floating state by a main chassis with springs and dampers, will be described with reference to Figs. 8 and 9.
- Fig. 8 shows a reproduction state of a disc 29, and
- Fig. 9 shows a state that a disc 29 is loaded or unloaded.
- a reproduction unit chassis 22 shown in Figs. 8 and 9 is used for supporting a pickup and a disc drive unit, and has a mechanism necessary for reproducing the disc 29.
- This reproduction unit chassis 22 is supported by a main chassis 21 with vibration damping mechanisms 28 each constituted of a damper 24 and a tension coil spring 23, in order not to transmit external vibrations to the reproduction unit chassis 22.
- the reproduction unit chassis 22 Since the reproduction unit chassis 22 is supported in a floating state by the vibration damper mechanisms 28, it moves in four directions indicated by arrows in Fig. 8, relative to the main chassis 21. In order to maintain a sufficient space of such a relative motion, the reproduction unit chassis 22 is disposed generally at the center of the space of the main chassis 21 in a natural state. When the disc 29 is loaded or unloaded, the reproduction unit chassis 22 is locked to the main chassis 21 by rotating lock arms 25, 25,... and engaging them with shafts 21a, 21a, ... mounted upright on the main chassis 21, in order to correctly align the disc 29 with a disc insert port 26, as shown in Fig. 9.
- the lock arms 25, 25,... are rotatively supported by the reproduction unit chassis 22, and rotated by the lock mechanisms shown in Figs. 10B to 10D. In a reproduction state, the lock arms 25, 25,... are at positions spaced from the shafts 21a, 21a,... as shown in Fig. 8.
- the reproduction unit chassis 22 is locked at the position same as that in the natural state during the reproduction.
- the reproduction unit chassis 22 is locked at the position remote from the disc insert port 26 when the disc 29 is loaded or unloaded. Therefore, a motion distance of the disc 29 to the reproduction position becomes long, and the disc 29 is required to be transported to the deeper position of the apparatus. It is therefore difficult to load the disk 29 by holding only its peripheral areas without touching the recording surface thereof. This may cause the disk 29 to drop and be damaged or the recording surface may be touched and stained. Therefore, data read errors may occur during disc reproduction.
- Fig. 10A shows the outline structure of a vehicle mount disc reproduction apparatus according to an embodiment of the invention.
- a reproduction unit chassis 22 indicated by solid lines shows a loading state or an unloading state, and that indicated by two-dot chain lines shows a reproduction state.
- the reproduction unit chassis 22 is used for supporting a pickup and a disc drive unit, and has a mechanism necessary for reproducing the disc 29.
- This reproduction unit chassis 22 is supported by a main chassis 1 with vibration damping mechanisms 28 each constituted of a damper 24 and a tension coil spring 23, in order not to transmit external vibrations to the reproduction unit chassis 22.
- the reproduction unit chassis 22 is disposed generally at the center of the space of the main chassis 21, as indicated by two-dot chain lines.
- the reproduction unit chassis 22 is moved by the lock mechanisms shown in Figs. 10B to 10D to a disc insert port, and locked at the position near the disc insert port, as indicated by solid lines.
- two lock arms 25 and two shafts 21a similar to the example shown in Figs. 8 and 9 are used.
- An outline of the lock mechanism for the vehicle mount disc reproduction apparatus will be described with reference to Figs. 10B to 10D.
- a reproduction unit chassis 101 Mounted on a reproduction unit chassis 101 are a first slider 103, an actuator 104, pinions 105 and 117, a shift 116, first to fifth gears 106 to 110, a rack 111, a second slider 112, and an arm 113.
- the pinions 105 and 117 are fixed to opposite ends of the shaft 116 and rotate synchronously.
- a power from the actuator 104 is transmitted via the first to fifth gears 101 to 110 to the rack 111 to move the second slider 112 in a direction A.
- the pinion 105 rotate and this rotation force is transmitted via the shaft 116 to the first slider 103 which in turn moves in the direction A synchronously with the second slider 112.
- the reproduction unit chassis 101 is pushed along a direction B and locked to the main chassis.
- the disc reproduction apparatus of this invention since the distance from the reproduction unit chassis and disc insert port is short when a disc is loaded, the disc can be loaded with ease without touching the disc recording surface. Therefore, the disc is prevented from being made dirty and data read errors are prevented.
- the disc can be unloaded with ease without touching the disc recording surface.
- a different floating chassis support mechanism may be used for the vehicle mount disc reproduction apparatus shown in Figs. 8 to 10D, independently of the floating chassis support mechanism shown in Figs. 1 to 7.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Feeding And Guiding Record Carriers (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/485,868 US6426935B1 (en) | 1997-08-22 | 1998-08-10 | Supporting structure of floating chassis of disc apparatus |
DE1004117T DE1004117T1 (en) | 1997-08-22 | 1998-08-10 | SUPPORT STRUCTURE OF A FLOATING CHASSIS FOR A DISK DEVICE |
KR10-2000-7001727A KR100530685B1 (en) | 1997-08-22 | 1998-08-10 | Supporting structure of floating chassis of disk apparatus |
EP98936717A EP1004117B1 (en) | 1997-08-22 | 1998-08-10 | Supporting structure of floating chassis of disc apparatus |
DE69809760T DE69809760T2 (en) | 1997-08-22 | 1998-08-10 | SUPPORT STRUCTURE OF A FLOATING CHASSIS FOR A DISK DEVICE |
HK01100048A HK1029432A1 (en) | 1997-08-22 | 2001-01-03 | Supporting structure of floating chassis of disc apparatus. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/242152 | 1997-08-22 | ||
JP9242152A JP2961180B2 (en) | 1997-08-22 | 1997-08-22 | In-car disk player |
JP9/250070 | 1997-08-29 | ||
JP25007097A JP2961181B2 (en) | 1997-08-29 | 1997-08-29 | Disk unit floating chassis support structure |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/485,868 A-371-Of-International US6426935B1 (en) | 1997-08-22 | 1998-08-10 | Supporting structure of floating chassis of disc apparatus |
US10/164,018 Division US6614747B2 (en) | 1997-08-22 | 2002-06-07 | Supporting structure with locking mechanism of floating chassis of disc apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999010889A1 true WO1999010889A1 (en) | 1999-03-04 |
Family
ID=26535633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/003550 WO1999010889A1 (en) | 1997-08-22 | 1998-08-10 | Supporting structure of floating chassis of disc apparatus |
Country Status (10)
Country | Link |
---|---|
US (2) | US6426935B1 (en) |
EP (2) | EP1128388B1 (en) |
KR (1) | KR100530685B1 (en) |
CN (2) | CN1265391C (en) |
DE (4) | DE69827854T2 (en) |
HK (2) | HK1029432A1 (en) |
ID (1) | ID24249A (en) |
MY (1) | MY130280A (en) |
TW (1) | TW408314B (en) |
WO (1) | WO1999010889A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6683745B1 (en) * | 1999-12-27 | 2004-01-27 | Hitachi Global Storage Technologies Netherlands B.V. | Rotationally free mount system for disk drive having a rotary actuator |
KR100419232B1 (en) * | 2000-11-15 | 2004-02-19 | 삼성전자주식회사 | Dynamic vibration absorber for disk drive |
JP4347515B2 (en) * | 2000-11-27 | 2009-10-21 | ポリマテック株式会社 | Anti-vibration damper integrated mechanical chassis |
US7009835B2 (en) * | 2003-07-16 | 2006-03-07 | Olixir Technologies Corp. | Energy dissipative device and method |
JP4179962B2 (en) | 2003-10-20 | 2008-11-12 | 松下電器産業株式会社 | Disk unit |
EP2064706A4 (en) * | 2006-08-25 | 2010-07-28 | March Networks Corp | Mobile event data recorder with multiple orientation vibration isolation |
JP4831356B2 (en) * | 2007-04-24 | 2011-12-07 | ティアック株式会社 | Optical disk device |
US8480052B2 (en) | 2011-01-11 | 2013-07-09 | Drs Tactical Systems, Inc. | Vibration isolating device |
US9637063B1 (en) | 2014-10-07 | 2017-05-02 | Michael Shawver | Vibration cancelling platform for use with laptops or tablet computers used in moving vehicles |
US9395040B1 (en) | 2014-10-07 | 2016-07-19 | Michael Shawver | Vibration cancelling platform for use with laptops or table computers used in moving vehicles |
US10443670B2 (en) * | 2018-03-05 | 2019-10-15 | Nhk International Corporation | Damping device |
US11169572B2 (en) * | 2019-08-07 | 2021-11-09 | Hand Held Products, Inc. | Protective housing for a mobile device |
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1998
- 1998-07-27 TW TW087112256A patent/TW408314B/en not_active IP Right Cessation
- 1998-08-10 DE DE69827854T patent/DE69827854T2/en not_active Expired - Lifetime
- 1998-08-10 DE DE69809760T patent/DE69809760T2/en not_active Expired - Lifetime
- 1998-08-10 KR KR10-2000-7001727A patent/KR100530685B1/en not_active IP Right Cessation
- 1998-08-10 DE DE1004117T patent/DE1004117T1/en active Pending
- 1998-08-10 CN CNB031224385A patent/CN1265391C/en not_active Expired - Fee Related
- 1998-08-10 WO PCT/JP1998/003550 patent/WO1999010889A1/en active IP Right Grant
- 1998-08-10 CN CNB988084074A patent/CN1163905C/en not_active Expired - Fee Related
- 1998-08-10 US US09/485,868 patent/US6426935B1/en not_active Expired - Lifetime
- 1998-08-10 EP EP01113287A patent/EP1128388B1/en not_active Expired - Lifetime
- 1998-08-10 DE DE1128388T patent/DE1128388T1/en active Pending
- 1998-08-10 ID IDW20000341A patent/ID24249A/en unknown
- 1998-08-10 EP EP98936717A patent/EP1004117B1/en not_active Expired - Lifetime
- 1998-08-21 MY MYPI98003821A patent/MY130280A/en unknown
-
2001
- 2001-01-03 HK HK01100048A patent/HK1029432A1/en not_active IP Right Cessation
-
2002
- 2002-02-11 HK HK02101058A patent/HK1040563A1/en not_active IP Right Cessation
- 2002-06-07 US US10/164,018 patent/US6614747B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3318788A1 (en) * | 1983-05-24 | 1984-11-29 | Erhard 7172 Rosengarten Seeger | Record player |
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Also Published As
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CN1265391C (en) | 2006-07-19 |
TW408314B (en) | 2000-10-11 |
EP1004117B1 (en) | 2002-11-27 |
DE69827854T2 (en) | 2005-11-03 |
CN1163905C (en) | 2004-08-25 |
KR20010023105A (en) | 2001-03-26 |
CN1474409A (en) | 2004-02-11 |
DE69809760D1 (en) | 2003-01-09 |
EP1128388A2 (en) | 2001-08-29 |
DE69809760T2 (en) | 2003-09-25 |
EP1128388A3 (en) | 2002-01-02 |
DE69827854D1 (en) | 2004-12-30 |
KR100530685B1 (en) | 2005-11-28 |
EP1004117A1 (en) | 2000-05-31 |
HK1040563A1 (en) | 2002-06-14 |
US20020150025A1 (en) | 2002-10-17 |
ID24249A (en) | 2000-07-13 |
HK1029432A1 (en) | 2001-03-30 |
US6614747B2 (en) | 2003-09-02 |
DE1004117T1 (en) | 2002-06-13 |
CN1268242A (en) | 2000-09-27 |
MY130280A (en) | 2007-06-29 |
EP1128388B1 (en) | 2004-11-24 |
DE1128388T1 (en) | 2002-04-04 |
US6426935B1 (en) | 2002-07-30 |
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