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

IPC: G11B21/02 ,  G06F12/02 ,  G11B19/20 ,  G11B25/04 ,  G11B33/12 ,  G11B33/14

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.

公开(公告)号：PL178323B1

公开(公告)日：2000-04-28

申请号：PL32033395

申请日：1995-10-21

Applicant: IBM

Inventor： COFFEY JEROME T ,  GOODMAN DALE E ,  POSS JOE M

IPC: G11B21/02 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/17 ,  G11B5/39 ,  G11B5/48 ,  G11B5/60 ,  G11B23/00

Abstract: A direct access storage device includes at least one disk mounted for rotation about an axis and having opposed disk surfaces for storing data. A magneto-resistive (MR) transducer head is mounted for movement across each respective disk surface for writing to and for reading data signals from the disk surface. Each MR transducer head includes a write element and a read element. A preamplifier, associated with the MR transducer head, amplifies read and write signals of the read element and the write element. A flex cable couples the read and write signals between the preamplifier and the MR transducer heads. The flex cable includes a common read return signal line for each sequential pair of the MR transducer heads.

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

IPC: G06F12/02 ,  G11B21/02 ,  G11B19/20 ,  G11B25/04 ,  G11B33/12 ,  G11B33/14

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.

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

IPC: G06F12/02 ,  G11B19/20 ,  G11B25/04 ,  G11B33/12 ,  G11B33/14 ,  G11B21/02 ,  B03C3/00 ,  G11B33/00

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.

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

IPC: G06F12/02 ,  G11B19/20 ,  G11B25/04 ,  G11B33/12 ,  G11B33/14 ,  G11B21/02 ,  B03C3/00 ,  G11B33/00

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).