Patent US4754349A successfully refreshed from Google Patents.
US4754349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration absorbing support assembly for a disc memory
Assignee: HGST Japan Ltd
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Filing: 1986-10-14
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Granted: 1988-06-28
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Expires: 2006-10-14
Abstract
Abstract A disc memory device has a disc memory assembly comprised of a disc, head and a head actuator. The assembly is movably mounted to a base of the disc memory device such that it can move in the same direction as an operative direction of the head actuator, thereby ensuring that vibrations generated in response to acceleration/deceleration of the actuator can be absorbed by the whole of the disc memory assembly.
Inventors
- 👤 Hiroshi Nishida
- 👤 Masami Suzuki
- 👤 Jun Naruse
- 👤 Tsuyoshi Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:03
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/02; G11B33/08; G11B25/00; G11B25/04; G11B25/043
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
77 words
A disc memory device comprising: a disc memory assembly including a disc for holding data, a head including means for accessing the data on said disc, and an actuator including motor means for driving said head in a predetermined actuator operative direction; a base member on which said assembly is disposed; and, support means, connected to said base member, for movably supporting said assembly such that said assembly is movable in the operative direction of said actuator.
Claim 2
Dependent Claim
77 words
A disc memory device comprising: a disc memory assembly including a disc for holding data, a head including means for accessing the data on said disc, and an actuator including motor means for driving said head in a predetermined actuator operative direction; a base member on which said assembly is disposed; and, support means, connected to said base member, for movably supporting said assembly such that said assembly is movable in the operative direction of said actuator.
Claim 3
Dependent Claim
48 words
A disc memory device according to claim 1 wherein said support means comprises a rigid shaft slidably received in a shaft guide, the shaft guide being affixed to the disc, head and actuator, and the support means further includes springs interposed between said base member and said assembly.
Claim 4
Dependent Claim
17 words
A disc memory device according to claim 1 wherein said actuator is of a linear drive type.
Claim 5
Dependent Claim
89 words
A disc memory comprising: a housing assembly containing a magnetic disc, an associated recording/reproducing magnetic head, and a linear drive actuator disposed for selectively operatively moving the magnetic head in an actuator operative direction; and, a base for supporting the housing assembly including support shafts fixed to the base for guiding movement of the housing assembly in the direction of the operative movement of the linear actuator whereby upon abrupt acceleration or deceleration of the actuator, vibration reaction forces are absorbed by associated housing assembly along the support shafts.
Claim 6
Dependent Claim
89 words
A disc memory comprising: a housing assembly containing a magnetic disc, an associated recording/reproducing magnetic head, and a linear drive actuator disposed for selectively operatively moving the magnetic head in an actuator operative direction; and, a base for supporting the housing assembly including support shafts fixed to the base for guiding movement of the housing assembly in the direction of the operative movement of the linear actuator whereby upon abrupt acceleration or deceleration of the actuator, vibration reaction forces are absorbed by associated housing assembly along the support shafts.
Claim 7
Dependent Claim
51 words
The disc memory device as claimed in claim 4 wherein the linear drive actuator includes a magnet, the magnet being secured to the housing assembly for transmitting reaction forces first generated in the magnet to the housing assembly whereby the whole of the housing assembly is affected by the reaction forces.
Claim 8
Dependent Claim
27 words
The disc memory device as described in claim 4 wherein the housing assembly is configured to provide a seal against dust generation at the disc and head.
Claim 9
Dependent Claim
30 words
The disc memory device as described in claim 4 wherein the housing assembly includes guides received on the shafts for guiding assembly movement in the direction of actuator operative movement.
Claim 10
Dependent Claim
19 words
The disc memory device as described in claim 4 including a plurality of the discs received in the housing.
Claim 11
Dependent Claim
19 words
The disc memory device as claimed in claim 4 including a plurality of the housings mounted to the base.
Claim 12
Dependent Claim
114 words
A disc memory device including a support base, a magnetic disc and an associated housing, and a linear drive actuator and magnetic head assembly; the actuator and head assembly being fastened to the housing for common damping of reactionary vibrational forces generated by abrupt acceleration and deceleration of the actuator; the base including at least one support shaft generally aligned with the direction of operative actuator movement; the housing and assembly including a plurality of guides mounted to the support shaft for movable support of the assembly in the direction of operative actuator movement whereby the reactionary vibrational forces are damped and absorbed by the movement of the housing and actuator and head assembly.
Claim 13
Dependent Claim
114 words
A disc memory device including a support base, a magnetic disc and an associated housing, and a linear drive actuator and magnetic head assembly; the actuator and head assembly being fastened to the housing for common damping of reactionary vibrational forces generated by abrupt acceleration and deceleration of the actuator; the base including at least one support shaft generally aligned with the direction of operative actuator movement; the housing and assembly including a plurality of guides mounted to the support shaft for movable support of the assembly in the direction of operative actuator movement whereby the reactionary vibrational forces are damped and absorbed by the movement of the housing and actuator and head assembly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |