GB2361578A - Inertia ring for improved rotational vibration performance - Google Patents
Inertia ring for improved rotational vibration performanceInfo
- Publication number
- GB2361578A GB2361578A GB0116183A GB0116183A GB2361578A GB 2361578 A GB2361578 A GB 2361578A GB 0116183 A GB0116183 A GB 0116183A GB 0116183 A GB0116183 A GB 0116183A GB 2361578 A GB2361578 A GB 2361578A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- cover
- inertia ring
- attached
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- G11B33/12—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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- 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
Abstract
A disc drive includes a base and a disc rotatably attached to the base. The disc drive also includes an actuator assembly rotatably attached to said base and a device for moving the actuator assembly. A cover is attached to the base. The combination of the cover and base form a disc enclosure for enclosing the disc the actuator assembly and the device for moving the actuator assembly. An inertia ring is attached to the disc enclosure for increasing the moment of inertia of the base and cover. The inertia ring may be attached to the cover or to the base. The inertia ring may be formed of a material which is more dense than the cover or more dense than the base. The inertia ring may also be formed integral with the base or the cover. The inertia ring may also be formed such that the material is positioned near the periphery of the base and attached cover. A damped interface between the inertia ring and the base or cover may further reduce movement of the base with respect to the actuator.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13029299P | 1999-04-21 | 1999-04-21 | |
PCT/US2000/010582 WO2000063919A1 (en) | 1999-04-21 | 2000-04-20 | Inertia ring for improved rotational vibration performance |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0116183D0 GB0116183D0 (en) | 2001-08-22 |
GB2361578A true GB2361578A (en) | 2001-10-24 |
GB2361578B GB2361578B (en) | 2003-08-06 |
Family
ID=22443998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0116183A Expired - Fee Related GB2361578B (en) | 1999-04-21 | 2000-04-20 | Inertia ring for improved rotational vibration performance |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10084347T1 (en) |
GB (1) | GB2361578B (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5214549A (en) * | 1991-07-12 | 1993-05-25 | Seagate Technology, Inc. | Acoustically damped disc drive assembly |
US5282100A (en) * | 1992-01-22 | 1994-01-25 | Quantum Corporation | Disk drive with reduced acoustic noise |
US5469311A (en) * | 1991-03-15 | 1995-11-21 | Hitachi, Ltd. | Vibration absorbing structure for a magnetic disk apparatus |
US5598306A (en) * | 1994-07-29 | 1997-01-28 | International Business Machines Corporation | Damping post for reducing acoustic noise in a disk drive |
EP0780845A1 (en) * | 1995-12-18 | 1997-06-25 | Hitachi, Ltd. | Rotary information recording and reproduction apparatus |
US5781373A (en) * | 1997-03-14 | 1998-07-14 | Western Digital Corporation | Acoustic noise reduction system for a disk drive |
JPH10214480A (en) * | 1997-01-30 | 1998-08-11 | Samsung Electron Co Ltd | Cover for reproducing device for recording carrier |
-
2000
- 2000-04-20 GB GB0116183A patent/GB2361578B/en not_active Expired - Fee Related
- 2000-04-20 DE DE10084347T patent/DE10084347T1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5469311A (en) * | 1991-03-15 | 1995-11-21 | Hitachi, Ltd. | Vibration absorbing structure for a magnetic disk apparatus |
US5214549A (en) * | 1991-07-12 | 1993-05-25 | Seagate Technology, Inc. | Acoustically damped disc drive assembly |
US5282100A (en) * | 1992-01-22 | 1994-01-25 | Quantum Corporation | Disk drive with reduced acoustic noise |
US5598306A (en) * | 1994-07-29 | 1997-01-28 | International Business Machines Corporation | Damping post for reducing acoustic noise in a disk drive |
EP0780845A1 (en) * | 1995-12-18 | 1997-06-25 | Hitachi, Ltd. | Rotary information recording and reproduction apparatus |
JPH10214480A (en) * | 1997-01-30 | 1998-08-11 | Samsung Electron Co Ltd | Cover for reproducing device for recording carrier |
US5781373A (en) * | 1997-03-14 | 1998-07-14 | Western Digital Corporation | Acoustic noise reduction system for a disk drive |
Also Published As
Publication number | Publication date |
---|---|
GB0116183D0 (en) | 2001-08-22 |
GB2361578B (en) | 2003-08-06 |
DE10084347T1 (en) | 2002-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20070420 |