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公开(公告)号：JPH06259953A
公开(公告)日：1994-09-16
申请号：JP185894
申请日：1994-01-13
Applicant: IBM
Inventor： BECK JOHN LOWELL , BOIGENZAHN JEFFREY FRED , BRATVOLD DARRELL EUGENE , BROWN CHARLES A , COSSETTE LUKE ANTONIO , STUCKY DANIEL CRAIG , GOOD MICHAEL SCOTT , GOODMAN DALE E , LAGERGREN RICHARD EDWARD , LYONS GREGORY ALLEN , RIGOTTI JAMES MICHAEL , RAPPEL BRIAN LEE , GOEKE DALE C , TUFTY LYLE RICH , WENDT HERMAN RUSSELL
Abstract: PURPOSE: To obtain a disk drive enclosure structure where a special form whose draft is zero is used in a die casting process. CONSTITUTION: A data storage disk drive 10 includes a spindle, which supports plural disks on the surface of a magnetic disk which are rotated around a common shaft and form a spindle assembly 18, and a rotary actuator which supports plural magnetic transducers on the surface of each disk. The disk drive includes a die cast disk drive enclosure structure 12 including the surface to which a spindle motor shaft and an actuator bearing shaft are set and where a predeterminate draft is zero. The enclosure structure includes a base cast member 14, which holds an electric connector arranged on the outside, and a cover cast member 16. The disk drive includes an electric passage from a flexible circuit to a comb-shaped part of the actuator. The disk drive includes a tubular chemical air filter arranged in a groove for diffusion integrated with the cover as one body.
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公开(公告)号：CZ9701024A3
公开(公告)日：2003-06-18
申请号：CZ102497
申请日：1995-10-05
Applicant: IBM
Abstract: A direct access storage device (DASD) includes a plurality of motion limiters and/or a continuous motion limiter projecting from at least one of the base and cover, each motion limiter having faces disposed in close proximity to and confronting opposite surfaces of a data storage disk adjacent a peripheral portion of the disk that does not contain data. Preferably, the motion limiters are disposed at several points about the periphery of the disk, and may be incorporated in a load/unload ramp and/or side rails of the DASD. The faces of the motion limiters are disposed relative to the disk so that when the DASD is subjected to an acceleration, the disk contacts at least one of the faces only at the peripheral portion of the disk, outside the data zone. Accordingly, the motion limiters prevent data zone and spindle bearing damage when the DASD is dropped.
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公开(公告)号：DE69009207T2
公开(公告)日：1994-12-01
申请号：DE69009207
申请日：1990-01-24
Applicant: IBM
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公开(公告)号：CZ292520B6
公开(公告)日：2003-10-15
申请号：CZ102497
申请日：1995-10-05
Applicant: IBM
Abstract: A direct access storage device (10) includes a plurality of motion limiters (48) and/or a continuous motion limiter (48) projecting from at least one of the base (12) and cover (58), each motion limiter (48) having faces (55, 57) disposed in close proximity to and confronting opposite surfaces (38, 39) of a data storage disk (14) adjacent a peripheral portion (42) of the disk that does not contain data. Preferably, the motion limiters (48) are disposed at several points about the periphery of the disk, and may be incorporated in a load/unload ramp and/or side rails of the direct access storage device. The faces (55, 57) of the motion limiters (48) are disposed relative to the disk so that when the direct access storage device (10) is subjected to acceleration, the disk contacts at least one of the faces (55, 57) only at the peripheral portion (42) of the disk, outside the data zone (40). Accordingly, the motion limiters (48) prevent data zone (40) and spindle bearing (34) damage when the direct access storage device (10) is dropped.
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公开(公告)号：AT169764T
公开(公告)日：1998-08-15
申请号：AT95937796
申请日：1995-10-05
Applicant: IBM
Abstract: A direct access storage device (DASD) includes a plurality of motion limiters and/or a continuous motion limiter projecting from at least one of the base and cover, each motion limiter having faces disposed in close proximity to and confronting opposite surfaces of a data storage disk adjacent a peripheral portion of the disk that does not contain data. Preferably, the motion limiters are disposed at several points about the periphery of the disk, and may be incorporated in a load/unload ramp and/or side rails of the DASD. The faces of the motion limiters are disposed relative to the disk so that when the DASD is subjected to an acceleration, the disk contacts at least one of the faces only at the peripheral portion of the disk, outside the data zone. Accordingly, the motion limiters prevent data zone and spindle bearing damage when the DASD is dropped.
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Patent Agency Ranking
公开(公告)号：HUT76958A
公开(公告)日：1998-01-28
申请号：HU9700401
申请日：1995-10-05
Applicant: IBM
Abstract: A direct access storage device (DASD) includes a plurality of motion limiters and/or a continuous motion limiter projecting from at least one of the base and cover, each motion limiter having faces disposed in close proximity to and confronting opposite surfaces of a data storage disk adjacent a peripheral portion of the disk that does not contain data. Preferably, the motion limiters are disposed at several points about the periphery of the disk, and may be incorporated in a load/unload ramp and/or side rails of the DASD. The faces of the motion limiters are disposed relative to the disk so that when the DASD is subjected to an acceleration, the disk contacts at least one of the faces only at the peripheral portion of the disk, outside the data zone. Accordingly, the motion limiters prevent data zone and spindle bearing damage when the DASD is dropped.
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公开(公告)号：PL319693A1
公开(公告)日：1997-08-18
申请号：PL31969395
申请日：1995-10-05
Applicant: IBM
Abstract: A direct access storage device (DASD) includes a plurality of motion limiters and/or a continuous motion limiter projecting from at least one of the base and cover, each motion limiter having faces disposed in close proximity to and confronting opposite surfaces of a data storage disk adjacent a peripheral portion of the disk that does not contain data. Preferably, the motion limiters are disposed at several points about the periphery of the disk, and may be incorporated in a load/unload ramp and/or side rails of the DASD. The faces of the motion limiters are disposed relative to the disk so that when the DASD is subjected to an acceleration, the disk contacts at least one of the faces only at the peripheral portion of the disk, outside the data zone. Accordingly, the motion limiters prevent data zone and spindle bearing damage when the DASD is dropped.
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公开(公告)号：GB2275811A
公开(公告)日：1994-09-07
申请号：GB9403779
申请日：1994-02-28
Applicant: IBM
Inventor： BECK JOHN LOWELL , BOIGENZAHN JEFFREY FRED , BRATVOLD DARRELL EUGENE , BROWN CHARLES A , COSSETTE LUKE ANTONIO , GOEKE DALE CLARK , GOOD MICHAEL SCOTT , GOODMAN DALE E , LAGERGREN RICHARD EDWARD , LYONS GREGORY ALLEN , RIGOTTI JAMES MICHAEL , RAPPEL BRIAN LEE , STUCKY DANIEL CRAIG , TUFTY LYLE RICK , WENDT HERMAN RUSSELL
Abstract: A data storage disk drive is provided with a spindle 42 which supports a plurality of disks 110 for rotation about a common axis, and a rotary actuator 20 which supports magnetic transducers for movement in unison across respective disk surfaces. The disk drive includes a disk drive enclosure having die-cast generated predetermined zero draft registration surfaces 30 - 40 for mounting the spindle motor shaft 42 and the actuator bearing shaft 44 and possibly magnet assemblies 46, 48. The enclosure includes a base casting 14 and a cover casting 16, each casting including structure (figs. 7 - 9) for locating and retaining electrical connectors used for connecting to a planar electronics card (90) located outside the drive enclosure. The disk drive includes an effective and easily manufacturable electrical path from a flex circuit to an actuator comb (figs. 11 - 13). The disk drive also includes a tubular, at least partly electrostatic, chemical breather filter (56) arranged with integral housing and diffusion channels (58) formed in the cover casting (figs. 14 - 24).
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公开(公告)号：DE69009207D1
公开(公告)日：1994-07-07
申请号：DE69009207
申请日：1990-01-24
Applicant: IBM
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公开(公告)号：HU221075B1
公开(公告)日：2002-07-29
申请号：HU9700401
申请日：1995-10-05
Applicant: IBM
Abstract: A direct access storage device (DASD) includes a plurality of motion limiters and/or a continuous motion limiter projecting from at least one of the base and cover, each motion limiter having faces disposed in close proximity to and confronting opposite surfaces of a data storage disk adjacent a peripheral portion of the disk that does not contain data. Preferably, the motion limiters are disposed at several points about the periphery of the disk, and may be incorporated in a load/unload ramp and/or side rails of the DASD. The faces of the motion limiters are disposed relative to the disk so that when the DASD is subjected to an acceleration, the disk contacts at least one of the faces only at the peripheral portion of the disk, outside the data zone. Accordingly, the motion limiters prevent data zone and spindle bearing damage when the DASD is dropped.
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