公开(公告)号：US5251081A

公开(公告)日：1993-10-05

申请号：US1942

申请日：1993-01-08

Applicant: Luke A. Cossette ,  Christopher G. Keller ,  Brian E. Schultz

Inventor： Luke A. Cossette ,  Christopher G. Keller ,  Brian E. Schultz

IPC: G11B17/038 ,  G11B19/20 ,  G11B25/04 ,  G11B33/14 ,  H02K11/00 ,  G11B17/02

CPC classification number: G11B33/1493 ,  G11B25/043 ,  H02K11/40 ,  G11B33/1446

Abstract: Disclosed is a disk drive having an enclosure for housing one or more disks, an actuator arm and sliders attached to the actuator arm. The sliders include magnetic transducers for reading information related to data off the disk and for writing representations of data to the disk. In a disk drive with an in-hub, fixed spindle shaft motor, the disk or disks are attached to the hub which is rotatably mounted to the spindle shaft. The hub includes one or more fingers attached to the hub which touch the spindle shaft when the hub is stationary and when the hub is rotating. The spindle shaft may also be provided with a wear resistant layer and/or ring of conductive material to enhance the electrical pathway between the hub and the spindle shaft and provide for lower wear and a longer life.

公开(公告)号：US5212607A

公开(公告)日：1993-05-18

申请号：US936481

申请日：1992-08-28

Applicant: John W. Elsing ,  William J. Kostecka ,  William C. Bright

Inventor： John W. Elsing ,  William J. Kostecka ,  William C. Bright

IPC: G11B17/038 ,  G11B19/20 ,  G11B25/04 ,  G11B33/14

CPC classification number: G11B25/043 ,  G11B17/038 ,  G11B19/2009 ,  G11B33/1406

Abstract: A disk drive assembly includes a disk pack with an axially retractable spindle assembly, along with a rotary actuator, mounted within a unitary deck and precision aligned by bores through spaced apart upper and lower support walls of the deck. Bushings, mounted to opposite ends of a spindle shaft through bearings, are aligned with the bores by inserting the retracted spindle assembly into the deck, with a spring biasing the spindle assembly into the retracted position. Fasteners through the opposed support walls draw the bushing sleeves axially outward against the spring force to preload the bearings as the shaft is aligned and secured, without employing a jig or any other alignment tooling. Upwardly converging flutes in the hub, in combination with openings through annular spacers that separate adjacent disks in the disk pack, provide a purging and cooling air flow, while interacting pairs of annular flanges and annular grooves, in the hub and bushings, control radial passage of air from the center of the spindle assembly into the region of the disks.

Abstract translation: 磁盘驱动器组件包括具有可轴向缩回的主轴组件的盘组，以及旋转致动器，其安装在单一平台内，并且通过孔穿过甲板的间隔开的上部和下部支撑壁精确对准。 通过将退回的主轴组件插入到甲板中，通过轴承将安装到主轴的相对端的衬套与孔对准，弹簧将主轴组件偏压到缩回位置。 通过相对的支撑壁的紧固件在不使用夹具或任何其它对准工具的情况下，在轴被对准和固定的情况下克服弹簧力将衬套套筒轴向向外拉动以预加载轴承。 在轮毂中向上收敛凹槽，与通过环形间隔件相结合的开口与隔片相邻的盘片组合，提供清洗和冷却空气流，同时在轮毂和衬套中相互作用成对的环形凸缘和环形槽，控制径向通道 的空气从主轴组件的中心到磁盘的区域。

公开(公告)号：US5173814A

公开(公告)日：1992-12-22

申请号：US653100

申请日：1991-02-08

Applicant: Dieter Elsasser ,  Johann von der Heide ,  Heinrich Cap

Inventor： Dieter Elsasser ,  Johann von der Heide ,  Heinrich Cap

IPC: G11B17/038 ,  G11B19/20 ,  G11B25/04 ,  H02K3/28 ,  H02K5/10 ,  H02K5/124 ,  H02K5/167 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K7/14 ,  H02K11/00 ,  H02K21/22 ,  H02K29/08

CPC classification number: H02K5/1735 ,  G11B17/038 ,  G11B19/2009 ,  G11B25/043 ,  H02K11/01 ,  H02K21/22 ,  H02K29/08 ,  H02K5/10 ,  H02K5/124 ,  H02K5/1737 ,  H02K5/225 ,  H02K7/085 ,  H02K7/086 ,  H02K7/14 ,  H02K2211/03 ,  H02K3/28 ,  H02K5/167 ,  H02K7/08

Abstract: A disk memory drive includes a brushless drive outer rotor motor having an internal space and a stator with windings. The outer rotor coaxially encircles the stator and a substantially cylindrical air gap is defined between the stator and the rotor. The rotor includes permanent magnets and a hub fixedly connected with the magnet. A disk mounting section is provided on the hub for accommodating at least one storage disk positioned in a clear space, the mounting section being adapted to extend through a central aperture of the storage disk. The windings and the magnets interacting with the windings are disposed for at least half of the axial longitudinal dimension thereof within a space surrounded by the disk mounting section of the hub. Bearings rotatably mount the rotor and the hub.

Abstract translation: 磁盘存储器驱动器包括具有内部空间的无刷驱动外转子电机和具有绕组的定子。 外转子同轴地环绕定子，并且在定子和转子之间限定大致圆柱形的气隙。 转子包括永磁体和与磁体固定连接的毂。 盘安装部分设置在轮毂上，用于容纳至少一个定位在透明空间中的存储盘，该安装部分适于延伸穿过存储盘的中心孔。 与绕组相互作用的绕组和磁体在由毂的盘安装部分围绕的空间内至少设置其轴向纵向尺寸的一半。 轴承可旋转地安装转子和轮毂。

公开(公告)号：US5128819A

公开(公告)日：1992-07-07

申请号：US682495

申请日：1991-04-09

Applicant: Dieter Elsaesser ,  Johann von der Heide

Inventor： Dieter Elsaesser ,  Johann von der Heide

IPC: G11B17/038 ,  G11B19/20 ,  G11B23/50 ,  G11B25/04 ,  H02K3/28 ,  H02K5/10 ,  H02K5/124 ,  H02K5/167 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K7/14 ,  H02K11/00 ,  H02K21/22 ,  H02K29/08 ,  H02P6/08

CPC classification number: G11B23/505 ,  G11B17/038 ,  G11B19/20 ,  G11B19/2009 ,  G11B25/043 ,  H02K11/01 ,  H02K11/33 ,  H02K11/40 ,  H02K21/22 ,  H02K29/08 ,  H02K5/10 ,  H02K5/124 ,  H02K5/1735 ,  H02K5/1737 ,  H02K5/225 ,  H02K7/085 ,  H02K7/086 ,  H02K7/14 ,  H02P6/085 ,  H02K2211/03 ,  H02K3/28 ,  H02K5/167 ,  H02K7/08 ,  H02P2209/07

Abstract: A disk storage drive is provided with a brushless drive motor having a stator with a winding. An external rotor coaxially surrounds the stator and is spaced therefrom by a substantially cylindrical air gap. The rotor includes a permanent magnet and a soft magnetic yoke. A hub is provided that is concentric to the yoke and is connected to the rotor for rotation therewith. The hub has a disk mounting portion on its outer peripheral surface that can be passed through the central opening of a standardized storage disk for mounting the storage disks for rotation therewith. At least half of the axial longitudinal dimension of the stator winding and the rotor magnet interacting therewith is housed within the disk mounting portion of the hub. The hub is made from a non-ferromagnetic material that is suitable for storage drive clean chamber use after dimensional finishing of the hub.

Abstract translation: 磁盘存储驱动器设置有具有带绕组的定子的无刷驱动电动机。 外部转子同轴地围绕定子并与其间隔开大致圆柱形的气隙。 转子包括永磁体和软磁轭。 提供了与轭同心的毂并且连接到转子以与其一起旋转。 轮毂在其外周面上具有盘安装部分，其可以穿过标准化的存储盘的中心开口，用于安装存储盘以与其一起旋转。 定子绕组和与其相互作用的转子磁体的轴向纵向尺寸的至少一半被容纳在毂的盘安装部分内。 轮毂由非铁磁材料制成，适用于轮毂尺寸精整后的储存驱动清洁室使用。

公开(公告)号：US5111713A

公开(公告)日：1992-05-12

申请号：US452031

申请日：1989-12-18

Applicant: T. Jay Cameron ,  Elwyn G. Erickson ,  Cornelius H. Hemphill

Inventor： T. Jay Cameron ,  Elwyn G. Erickson ,  Cornelius H. Hemphill

IPC: F16F15/32 ,  F16F15/36 ,  G01M1/36 ,  G11B17/038 ,  G11B19/20 ,  G11B25/04 ,  G11B33/08

CPC classification number: F16F15/363 ,  G01M1/36 ,  G11B33/08 ,  Y10T74/2114

Abstract: A rotary unit such as a disk file, retained in a dynamically balanced condition. In each end of the unit, there is an annular channel concentric with the rotational axis encircled by a flexible rim. A plurality of balls of substantially identical size and weight are inserted in an outer portion of each channel in which the balls are freely movable. While the unit is rotated at a speed above resonance, a balancing instrument is used to determine the mass magnitude and angle necessary to dynamically balance the unit. Then the balls are circumferentially relocated by vector balancing to provide mass at points equivalent to the determined mass and angle. The relocated balls are then forced axially past an interference ridge and into an inner portion of the respective channel in which the rim is flexed and the balls are held against movement.

公开(公告)号：US5077888A

公开(公告)日：1992-01-07

申请号：US480943

申请日：1990-02-16

Applicant: Hiromitsu Tokisue ,  Hiroshi Inouye

Inventor： Hiromitsu Tokisue ,  Hiroshi Inouye

IPC: B23P19/04 ,  B23P19/00 ,  B23P19/02 ,  B25J15/06 ,  B25J17/02 ,  G11B17/038 ,  G11B23/00

CPC classification number: B23P19/10 ,  B23P19/006 ,  B25J17/0208 ,  G11B17/038 ,  G11B23/00 ,  Y10T29/49901

Abstract: A device for mounting magnetic discs on a spindle of a magnetic disc file assembly has a disc transfer mechanism provided with a disc supporting surface operative to support a disc in non-contacting and relatively movable relationship with a fluid film formed therebetween. The thus supported disc is axialy aligned, by a positioning mechanism, with the spindle and then released into engagement with the spindle. The floating support of the disc allows the disc to be moved relative to the disc supporting surface first into alignment and then into engagement with the spindle without any mechanical contact and friction between the disc supporting surface and the disc to thereby prevent the production of dusty material otherwise produced by mechanical contact between the disc and the supporting surface.

公开(公告)号：US5075808A

公开(公告)日：1991-12-24

申请号：US428848

申请日：1989-10-30

Applicant: James L. Johnson

Inventor： James L. Johnson

IPC: G11B23/00 ,  G11B17/02 ,  G11B17/038 ,  G11B23/03 ,  G11B25/04

CPC classification number: G11B17/038 ,  G11B17/02

Abstract: In the present invention, an improved retaining member for a disc drive is disclosed. The disc drive has a spindle with a plurality of data storage discs mounted on the spindle. The retaining member is in the shape of a ring with a central hole and a plurality of spaced-apart teeth-shaped members positioned circumferentially about the ring and protruding into the central hole. The retaining member is positioned with the spindle through the central hole and substantially abuts one of the data storage discs. The plurality of teeth-shaped members are urged against the side of the spindle.

公开(公告)号：US5031061A

公开(公告)日：1991-07-09

申请号：US413468

申请日：1989-09-27

Applicant: Michael R. Hatch

Inventor： Michael R. Hatch

IPC: G11B17/038 ,  G11B25/04

CPC classification number: G11B17/038 ,  G11B25/043

Abstract: A disk drive spindle assembly including a rotatable hub and one or more disks having a central opening slightly larger than the cross dimension of the hub, so that the disk may freely fit over the hub. A flange extends radially outwardly from a lower region of the hub and defines an narrow, vertically extending annular support wall for supporting a disk along a uniform narrow contact region between the hub and the disk. A disk clamp clamps the disk against the support wall contact region. An annular concentric space, preferably defined by an elastomeric spacer structure which aligns the disk relative to an axis of rotation of the hub, spaces the disk away from the hub.

Abstract translation: 一种盘驱动器主轴组件，其包括可旋转轮毂和一个或多个盘，其具有稍微大于毂的横向尺寸的中心开口，使得盘可以自由地配合在轮毂上。 凸缘从毂的下部区域径向向外延伸，并且限定了一个狭窄的垂直延伸的环形支撑壁，用于沿毂和盘之间的均匀窄接触区域支撑盘。 磁盘夹将磁盘夹紧在支撑壁接触区域上。 优选地由弹性体间隔结构限定的环形同心空间，其将盘相对于轮毂的旋转轴线对准，使盘远离轮毂。

公开(公告)号：US5006942A

公开(公告)日：1991-04-09

申请号：US339282

申请日：1989-04-17

Applicant: Peter E. Brooks ,  Kimberly G. Jan

Inventor： Peter E. Brooks ,  Kimberly G. Jan

IPC: G11B23/00 ,  G11B17/02 ,  G11B17/038

CPC classification number: G11B17/02 ,  G11B17/038

Abstract: A system for clamping and retaining a stack of rigid magnetic disks is shown using disk spacer rings with an annular groove in the outer cylindrical surface. A concentrated axial load is applied to the stack by support surfaces which overlie the grooved portions of the spacers. The concentrated load is only partially distributed over the radial extent of the spacers with respect to the disks at the axial ends of the stack to resist coning or cupping of such end disks, while the force distribution approaches a uniform loading with respect to inner disks of the stack to retain the undistorted, planar orientation of such inner disks. The grooved spacers also provide a surface which can be used to engage and manipulate the disk assembly during manufacture of the drive.

公开(公告)号：US4999724A

公开(公告)日：1991-03-12

申请号：US434656

申请日：1989-11-13

Applicant: Jeffrey S. McAllister ,  Steven M. Johnson

Inventor： Jeffrey S. McAllister ,  Steven M. Johnson

IPC: G11B5/60 ,  G11B5/40 ,  G11B17/038 ,  G11B25/04 ,  G11B33/14

CPC classification number: G11B25/043 ,  G11B33/1493 ,  G11B5/40

Abstract: A disk drive in which the rotatable magnetic memory disks and the metal actuator are electrically isolated from the metallic mainframe of the disk drive and the magnetic heads on the metallic actuator, the coils of the magnetic heads and the magnetic memory disks are maintained at electrical potential levels which are sufficiently close to prevent arcing therebetween and which is different from the potential of the main frame. Electrical isolation is achieved by electrically insulating the disk spindle on which the disks are journaled from the mainframe and by electrically insulating the metal actuator from the metal actuator support when the metal actuator support is attached directly to the main frame, or by electrically insulating the metal actuator support from the main frame. An electrical potential is applied to the disks via the disk spindle and to the body of the magnetic heads via the metal actuator arm to provide potential levels which among these parts are sufficiently close to prevent arcing.