公开(公告)号：WO1994005007A3

公开(公告)日：1994-03-03

申请号：PCT/US1993007458

申请日：1993-08-10

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  SCHWARZ, Theodore, A.

IPC: G11B05/48

公开(公告)号：WO1992009076A1

公开(公告)日：1992-05-29

申请号：PCT/US1991008371

申请日：1991-11-08

Applicant: HUTCHINSON TECHNOLOGY, INC.

Inventor： HUTCHINSON TECHNOLOGY, INC. ,  BLAESER, David, J. ,  LIEN, Brent

IPC: G11B05/48

CPC classification number: G11B5/484 ,  G11B5/4826 ,  G11B5/4833

Abstract: An improved magnetic head suspension having a unitary load beam (10) and flexure structure with a gimballed slider baseplate (12) etched into the slider. The present magnetic head suspension assembly overcomes prior art limitations by making the load beam (10) and flexure from one piece of sheet material. Thus, the accuracy of orientation of the flexure in relation to the load beam (10) is carefully controlled and the overall structure can be optimized to improve its dynamic characteristics and greatly reduce its size.

公开(公告)号：WO1992005542A1

公开(公告)日：1992-04-02

申请号：PCT/US1991006654

申请日：1991-09-13

Applicant: HUTCHINSON TECHNOLOGY, INC.

Inventor： HUTCHINSON TECHNOLOGY, INC. ,  JURGENSON, Ryan, A. ,  PAYNE, Valerie, J. ,  WHEATLEY, Greg ,  LIEN, Brent

IPC: G11B05/48

CPC classification number: G11B5/5521

Abstract: An improved magnetic head suspension (10) having improved dynamic performance enhanced by stiffening flanges (70) projecting from the top surface of the load beam element (16) toward the side of the beam element (16) to which the magnetic head (not shown) is to be mounted, the flanges (70) covering only a portion of the length of the distal end (24) of the load beam (16).

Abstract translation: 一种改进的磁头悬架（10），其具有改善的动态性能，通过从加载梁元件（16）的顶表面向梁元件（16）突出的加强凸缘（70）增强，磁头（未示出） ），凸缘（70）仅覆盖负载梁（16）的远端（24）的长度的一部分。

公开(公告)号：WO1989009987A1

公开(公告)日：1989-10-19

申请号：PCT/US1989001283

申请日：1989-03-30

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  HICKOK, William, K. ,  RILEY, John, M. ,  KOSARKO, Gerald, J.

IPC: G11B05/48

CPC classification number: G11B17/32 ,  G11B5/4886 ,  G11B21/00

Abstract: A pair of oppositely-disposed stabilizer devices (18, 18') support opposed magnetic heads (24, 24') for interfacing with opposite sides of a rotating magnetic disk (6). Each stabilizer device includes a block (20, 20') with an opening (22, 22') through which the magnetic head protrudes for engagement with a respective side of the disk. An air bearing surface (26, 26') on each block surrounds the opening adjacent the disk for generating coupling forces that deform the disk out of its nominal plane (40) on opposite sides thereof and into intimate contact with the transducing gaps (32, 32') on the respective heads. The stabilizer devices are positioned in relation to separate radii (r1, r2) depending from the center (c1) of the drive spindle (13) so that a circumferential offset (o1) is established that permits substantially separate interaction of the air bearing surfaces with the disk.

公开(公告)号：WO1997018554A1

公开(公告)日：1997-05-22

申请号：PCT/US1996017712

申请日：1996-11-06

Applicant: QUANTUM CORPORATION

Inventor： QUANTUM CORPORATION ,  MICHAEL, A., David

IPC: G11B05/48

CPC classification number: G11B21/22

Abstract: A pressure differential actuator latching apparatus for a disk drive (10) includes a rotatable body portion (52), a rigid air vane portion (60), and a latching trap (62). When a data storage disk (20) does not rotate, the latching apparatus maintains a transducer actuator assembly (32, 34) of the disk drive in a locked position by engaging the actuator assembly in the latching trap (62). When the disk rotates, the transducer actuator assembly (32, 34) blocks the airflow generated on the surface of the disk creating an area of low pressure downstream. The latching apparatus is positioned so that the air vane portion (60) is between areas of low and ambient pressure. The pressure difference over the air vane portion (60) rotates the latching apparatus releasing the actuator assembly (32, 34) from the latching trap (62). When the disk stops, the air vane portion returns to its original position and the latching trap (62) locks the actuator assembly (32, 34).

Abstract translation: 一种用于盘驱动器（10）的压差致动器锁定装置，包括可旋转主体部分（52），刚性气动叶片部分（60）和闭锁收集器（62）。 当数据存储盘（20）不旋转时，锁定装置通过将致动器组件接合在锁定阱（62）中来将盘驱动器的换能器致动器组件（32,34）保持在锁定位置。 当盘旋转时，换能器致动器组件（32,34）阻挡在盘的表面上产生的气流，从而产生下游的低压区域。 锁定装置被定位成使得气动叶片部分（60）在低和环境压力的区域之间。 气动叶片部分（60）上的压力差使闭锁装置从致动锁定器（62）释放致动器组件（32,34）。 当磁盘停止时，气动叶片部分返回其初始位置，并且闭锁捕获器（62）锁定致动器组件（32,34）。

公开(公告)号：WO1997006527A1

公开(公告)日：1997-02-20

申请号：PCT/US1996011655

申请日：1996-07-11

Applicant: PHASE METRICS

Inventor： PHASE METRICS ,  LEE, Patrick, R. ,  CORMIER, Arthur, J.

IPC: G11B05/48

CPC classification number: G11B5/4826

Abstract: An integrated spring head/gimbal assembly holder is used to precisely load and unload a head/gimbal assembly (HGA) of the type used in magnetic disk drives. The holder includes a fixture base by which the holder is mounted. A first boss extending from the fixture base has a surface in which a recess is formed. The recess receives a second boss on the end of the HGA so that HGA rests on the surface of the first boss. A cantilevered beam extends from the fixture base and serves as a spring which includes a clamping head. Flexure of the cantilevered beam forces the clamping head to drive the second boss firmly against the sidewalls at the edge of the recess and to force the HGA against the surface of the boss. Thus, the HGA is precisely positioned and secured to the holder.

Abstract translation: 使用集成的弹簧头/万向节组件支架来精确地装载和卸载磁盘驱动器中使用的头/万向节组件（HGA）。 保持器包括固定座，安装座。 从固定基座延伸的第一凸台具有形成凹部的表面。 凹部在HGA的端部接收第二凸台，使得HGA位于第一凸台的表面上。 悬臂梁从夹具底座延伸，用作包括夹紧头的弹簧。 悬臂梁的挠曲力使夹头在凹槽的边缘处牢固地驱动第二凸台以抵抗侧壁并迫使HGA抵靠凸起表面。 因此，HGA被精确地定位并固定到保持器。

公开(公告)号：WO1997004446A2

公开(公告)日：1997-02-06

申请号：PCT/IB1996001128

申请日：1996-07-12

Applicant: CIRRUS LOGIC, INC.

Inventor： CIRRUS LOGIC, INC. ,  ROMANO, Paul, M. ,  SUPINO, Louis

IPC: G11B05/48

CPC classification number: G11B5/59683 ,  G11B5/5547 ,  G11B2005/0016

Abstract: A sliding mode controller for controlling the motion of a magnetoresistive (MR) read head actuated by a voice coil motor over a rotating magnetic disk storage medium. The magnetic disk comprises a plurality of concentric data tracks recorded thereon wherein each data track comprises user data and servo data. The sliding mode controller operates by multiplying a head position error phase state and a head position error velocity phase state by respective switching gains to force the phase states to follow a predetermined phase state trajectory. The phase state trajectory can be defined by a single linear segment, a variable linear segment, multiple linear segments over the entire region of excursion, or optimum parabolic acceleration and deceleration segments. Switching logic, responsive to the phase states and a trajectory segment value sigma , switches between positive and negative feedback gains to drive the phase states toward a current trajectory segment. A sigma processing block monitors the phase states to determine when to switch from a current trajectory segment to the next trajectory segment. The resulting servo control system is relatively inexpensive to implement in either software or hardware, and it is substantially insensitive to parametric changes, external load disturbances, and nonlinearities inherent in controlling MR read heads. Further, it does not require notch filters commonly used in conventional linear controllers to compensate for mechanical resonances.

Abstract translation: 一种滑动模式控制器，用于控制由音圈电机在旋转磁盘存储介质上驱动的磁阻（MR）读头的运动。 磁盘包括记录在其上的多个同心数据轨道，其中每个数据轨道包括用户数据和伺服数据。 滑动模式控制器通过将头部位置误差相位状态和头部位置误差速度相位状态乘以相应的切换增益来操作，以迫使相位状态遵循预定的相位状态轨迹。 相位状态轨迹可以由单个线性段，可变线性段，整个移动区域上的多个线性段或最佳抛物线加速和减速段来定义。 响应于相位状态和轨迹段sigma的开关逻辑在正和负反馈增益之间切换以将相位状态驱动到当前轨迹段。 西格玛处理块监视相位状态以确定何时从当前轨迹段切换到下一轨迹段。 所得到的伺服控制系统在软件或硬件中实现相对便宜，并且对于控制MR读取头固有的参数变化，外部负载扰动和非线性实质上不敏感。 此外，它不需要通常用于常规线性控制器的陷波滤波器来补偿机械谐振。

公开(公告)号：WO1996036044A1

公开(公告)日：1996-11-14

申请号：PCT/US1996006209

申请日：1996-05-01

Applicant: QUANTUM CORPORATION

Inventor： QUANTUM CORPORATION ,  WILLIAMS, Stephen, P. ,  HATCH, Michael, R.

IPC: G11B05/48

CPC classification number: G11B5/4833

Abstract: An improved suspension for supporting a read/write head adjacent to a relatively moving storage medium in a disk drive is disclosed. The suspension (40) is mounted to an in-line rotary actuator arm and includes a reduced width, side rail (48), load beam (44) having a vented region (49). The suspension exhibits improved modal performance, particularly with respect to the torsional modes of operation.

Abstract translation: 公开了一种用于支持与磁盘驱动器中相对移动的存储介质相邻的读/写头的改进的悬架。 悬架（40）安装在直列旋转致动器臂上并且包括具有通气区域（49）的减小的宽度的侧轨（48），负载梁（44）。 悬架表现出改善的模态性能，特别是在扭转模式下。

公开(公告)号：WO1996017342A1

公开(公告)日：1996-06-06

申请号：PCT/EP1995004134

申请日：1995-10-21

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： INTERNATIONAL BUSINESS MACHINES CORPORATION ,  COFFEY, Jérôme, Thomas ,  GOODMAN, Dale, Ernest ,  POSS, Joe, Martin

IPC: G11B05/48

CPC classification number: G11B5/486 ,  G11B5/012 ,  G11B5/02 ,  G11B5/17 ,  G11B23/0007 ,  G11B2005/0016

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.

Abstract translation: 直接存取存储装置包括至少一个盘，其安装成绕轴线旋转并且具有用于存储数据的相对的盘表面。 安装磁阻（MR）传感器头，用于在每个相应的磁盘表面上移动，用于写入并从盘表面读取数据信号。 每个MR换能器头包括写元件和读元件。 与MR换能器头相关联的前置放大器放大读取元件和写入元件的读取和写入信号。 柔性电缆将前置放大器和MR换能器头之间的读取和写入信号耦合。 柔性电缆包括用于每个顺序对的MR换能器头的公共读取返回信号线。

公开(公告)号：WO1995015554A1

公开(公告)日：1995-06-08

申请号：PCT/US1994013864

申请日：1994-12-02

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  BEECROFT, Harold, J.

IPC: G11B05/48

CPC classification number: G11B5/48

Abstract: A flexbeam (30) for a hard disk drive (10) that complies with the PCMCIA specifications. The flexbeam has a magnetic head (22) mounted at a first end and a second end coupled to a voice coil motor assembly (28). Extending from each side of the flexbeam is a wall (44) which runs along a portion of the beam. The walls increase the stiffness of the flexbeam, so that the beam is not damaged when the disk drive is subjected to a shock load. The portion of the flexbeam that does not have the walls is flexible enough to allow the beam to deflect when an air bearing is formed between the magnetic head and a rotating disk. The flexbeam also has a C shaped slot that allows the head to pivot about the beam.

Abstract translation: 用于符合PCMCIA规范的硬盘驱动器（10）的弹性片（30）。 柔性梁具有安装在第一端的磁头（22）和耦合到音圈电动机组件（28）的第二端。 从挠曲束的每一侧延伸的是沿着梁的一部分延伸的壁（44）。 墙壁增加柔性梁的刚度，使得当磁盘驱动器受到冲击载荷时，梁不会损坏。 柔性梁的不具有壁的部分是足够柔韧的，以允许当在磁头和旋转盘之间形成空气轴承时梁被偏转。 柔性梁还具有允许头围绕梁枢转的C形槽。