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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：DE69020591T2
公开(公告)日：1996-02-29
申请号：DE69020591
申请日：1990-01-29
Applicant: IBM
Inventor： RIGOTTI JAMES MICHAEL , TUFTY LYLE RICK , ZELL MICHAEL NORMAN
Abstract: A disk drive structure maximises the axial length available for mounting disks within a predetermined height such as dictated by a form factor. A cast aluminium box frame 12 is used which supports the spindle and actuator assemblies and forms a part of the head disk enclosure in cooperation with a drawn metal cover 10. The box frame captures the spindle 9 and actuator shafts 40 at each end to ensure maximum overall assembly stiffness and to minimise the axial length required by the structure supporting the spindle. The box casting geometry is angled to establish the casting/cover joint around the disks before the diameter of the disks parallel to the width form factor, so that only the thinner cover is interposed in the region where the disks most closely approach the form factor. The cover and box frame are sealed and secured to one another by a thin compliant tape 11 that does not contribute stress to the box frame during thermal cycling.
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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：DE3378801D1
公开(公告)日：1989-02-02
申请号：DE3378801
申请日：1983-03-15
Applicant: IBM
IPC: G11B33/14 , G11B17/038 , G11B23/02 , G11B23/50
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公开(公告)号：SG46483A1
公开(公告)日：1998-02-20
申请号：SG1996005009
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 , LAGERGREEN 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 which supports a plurality of disks having at least one magnetic disk surface to form a spindle assembly for rotation of the disk surfaces about a common axis and a rotary actuator which supports magnetic transducers for movement in unison about respective disk surfaces. The disk drive includes a disk drive enclosure having die-cast generated predetermined zero draft geometries for mounting the spindle motor shaft and the actuator bearing shaft. The enclosure includes a base casting and a cover casting, each casting including structure for locating and retaining electrical connectors used for connecting to a planar electronics card located outside the drive enclosure. The disk drive includes an effective and easily manufacturable electrical path from a flex circuit to an actuator comb. The disk drive includes a tubular chemical breather filter arranged with integral housing and diffusion channels formed in the cover casting.
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Patent Agency Ranking
公开(公告)号：GB2275811B
公开(公告)日：1997-01-22
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 which supports a plurality of disks having at least one magnetic disk surface to form a spindle assembly for rotation of the disk surfaces about a common axis and a rotary actuator which supports magnetic transducers for movement in unison about respective disk surfaces. The disk drive includes a disk drive enclosure having die-cast generated predetermined zero draft geometries for mounting the spindle motor shaft and the actuator bearing shaft. The enclosure includes a base casting and a cover casting, each casting including structure for locating and retaining electrical connectors used for connecting to a planar electronics card located outside the drive enclosure. The disk drive includes an effective and easily manufacturable electrical path from a flex circuit to an actuator comb. The disk drive includes a tubular chemical breather filter arranged with integral housing and diffusion channels formed in the cover casting.
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公开(公告)号：DE69013044T2
公开(公告)日：1995-05-04
申请号：DE69013044
申请日：1990-01-24
Applicant: IBM
Inventor： VETTEL GERALD MICHAEL , RIGOTTI JAMES MICHAEL , TUFTY LYLE RICK
Abstract: A disk drive within the dimensional confines of a form factor can optimise volumetric density by using the full height dimension to house disks (13), but must thereafter utilise the remaining space for electrical components. The structure shown uses a stack of parallel cards with an interface card (84) on the rear end wall to provide the principal drive control and data circuits outside the head-disk assembly (HDA; 13). The motor driver circuitry (107, 111) is mounted on a flat flexible cable (72) and is secured to the front wall (18) at the opposite end of the drive in heat transfer relation. The heat generating motor drive circuits are physically isolated from the data/control circuits by the frame and HDA while some of the printed circuit cards are secured to the frame in a manner that enhances rigidity; the allocation of modules to the cards anticipates flow of data and control signals so as to minimise the number of connections and signal delays that impair performance.
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公开(公告)号：DE69013044D1
公开(公告)日：1994-11-10
申请号：DE69013044
申请日：1990-01-24
Applicant: IBM
Inventor： VETTEL GERALD MICHAEL , RIGOTTI JAMES MICHAEL , TUFTY LYLE RICK
Abstract: A disk drive within the dimensional confines of a form factor can optimise volumetric density by using the full height dimension to house disks (13), but must thereafter utilise the remaining space for electrical components. The structure shown uses a stack of parallel cards with an interface card (84) on the rear end wall to provide the principal drive control and data circuits outside the head-disk assembly (HDA; 13). The motor driver circuitry (107, 111) is mounted on a flat flexible cable (72) and is secured to the front wall (18) at the opposite end of the drive in heat transfer relation. The heat generating motor drive circuits are physically isolated from the data/control circuits by the frame and HDA while some of the printed circuit cards are secured to the frame in a manner that enhances rigidity; the allocation of modules to the cards anticipates flow of data and control signals so as to minimise the number of connections and signal delays that impair performance.
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公开(公告)号：DE69020591D1
公开(公告)日：1995-08-10
申请号：DE69020591
申请日：1990-01-29
Applicant: IBM
Inventor： RIGOTTI JAMES MICHAEL , TUFTY LYLE RICK , ZELL MICHAEL NORMAN
Abstract: A disk drive structure maximises the axial length available for mounting disks within a predetermined height such as dictated by a form factor. A cast aluminium box frame 12 is used which supports the spindle and actuator assemblies and forms a part of the head disk enclosure in cooperation with a drawn metal cover 10. The box frame captures the spindle 9 and actuator shafts 40 at each end to ensure maximum overall assembly stiffness and to minimise the axial length required by the structure supporting the spindle. The box casting geometry is angled to establish the casting/cover joint around the disks before the diameter of the disks parallel to the width form factor, so that only the thinner cover is interposed in the region where the disks most closely approach the form factor. The cover and box frame are sealed and secured to one another by a thin compliant tape 11 that does not contribute stress to the box frame during thermal cycling.
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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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