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1. 发明公开

EP0836682A4 IMPROVED HYDRODYNAMIC BEARING UNIT 失效
标题翻译： HYDRODYNAMISCHE LAGEREINHEID
公开(公告)号：EP0836682A4
公开(公告)日：1999-08-04
申请号：EP97925403
申请日：1997-04-23
申请人： QUANTUM CORP , MATSUSHITA KOTOBUKI ELECTRONIC
发明人： ZANG YAN , HATCH MICHAEL R , MINAKUCHI SHINICHI
IPC分类号： F16C17/10 , F16C33/10 , F16C33/74 , G11B19/20
CPC分类号： F16C33/103 , F16C33/745 , F16C2370/12 , G11B19/2009
摘要： A self-contained hydrodynamic bearing unit is disclosed. Centrifugal capillary seals are angularly defined between an outwardly tapered outer surface of a top screw (111) and an inwardly tapered inner surface of an annular clamp ring (187) at the top of the bearing unit as well as between an outwardly tapered outer suface of a seal plate (165) and an inwardly tapered inner surface of an annular clamp ring (167) at the bottom of the bearing unit.
摘要翻译：公开了一种独立的流体动力轴承单元。离心毛细管密封件成角度地限定在顶部螺杆（111）的向外渐缩的外表面与轴承单元的顶部处的环形夹环（187）的向内渐缩的内表面之间以及在向外渐缩的外表面密封板（165）和位于轴承单元底部的环形夹环（167）的向内渐缩的内表面。

2. 发明公开

EP0855080A4 ROLL-BIASED HEAD SUSPENSION FOR REDUCED TRACK MISREGISTRATION 失效
标题翻译： KOPFAUFHÄNGUNGMIT ROLLBEWEGUNGSVARSPANNUNG ZUR REDUZIERUNG VON SPUR-FALSCHREGISTRIERUNG
公开(公告)号：EP0855080A4
公开(公告)日：1998-12-23
申请号：EP97936365
申请日：1997-08-04
申请人： QUANTUM CORP
发明人： RIENER TIMOTHY A , LOW JAMES M , JACOBY JON E , HATCH MICHAEL R , WILLIAMS STEPHEN P
IPC分类号： G11B21/16 , G11B5/48 , G11B5/58 , G11B33/10
CPC分类号： G11B33/10 , G11B5/4813 , G11B5/4833 , G11B5/4886 , G11B5/58
摘要： A method corrects track misregistraton attributable to out of plane motions of a rotating disk (10) in a hard disk drive (13), and includes the steps of measuring a base plate roll-bias angle between the rotating data storage disk and the head arm (15) with a precision measuring device, and connecting the head arm and load beam (17) at a roll-bias angle selected to minimize track misregistration attributable to the roll-bias. A number of connection arrangements and structures are presented in order to achieve the desired reduction in track misregistration.
摘要翻译：一种方法纠正由于硬盘驱动器（13）中的旋转盘（10）的平面外运动引起的轨道偏差，并且包括以下步骤：测量旋转数据存储盘与头臂之间的底板辊偏置角（15）与精密测量装置连接，并且以选定的辊倾斜角度连接头臂和负载梁（17），以最小化归因于辊偏移的轨道偏差。提出了多种连接布置和结构，以实现期望的轨道重合失调减少。

3. 发明公开

EP0787913A3 Hydrodynamic bearing for spindle motor having high inertial load 失效
标题翻译：流体动力轴承主轴电动机MITH高惯性力
公开(公告)号：EP0787913A3
公开(公告)日：1998-12-16
申请号：EP96306083
申请日：1996-08-20
申请人： QUANTUM CORP
发明人： ZANG YAN , HATCH MICHAEL R
IPC分类号： F16C17/10 , F16C33/10 , F16C33/74 , G11B19/20 , F16C17/26
CPC分类号： F16C33/103 , F16C33/74 , F16C2370/12 , G11B19/2009
摘要： A self-contained hydrodynamic bearing unit includes a shaft (14) having a threaded axial opening at one end thereof and a shaft shoulder (15) adjacent the opening and perpendicular with a longitudinal axis (1) of the shaft (14), a sleeve (16) defining an opening for receiving the shaft (14) for relative rotation, a pair of longitudinally spaced-apart radial hydrodynamic journal bearings (34,36) defined between the shaft (14) and the sleeve (16), a shaft-bolt (13) including a threaded end region for mating with the threaded axial opening of the shaft and defining a bolt shoulder (17), an annular thrust plate (30) having two parallel radial faces and adapted to fit upon the shaft-bolt (13) for mounting between the shaft shoulder (15) and the shaft bolt shoulder (17) when the shaft-bolt (13) is mated with the threaded axial opening of the shaft (14), the sleeve (16) defining a radial thrust bearing surface portion extending radially outwardly at one end and positioned to confront one radial face of the thrust plate (30), an annular thrust bushing (54) mounted to the sleeve (16) and defining a radial thrust bearing surface portion confronting the other radial face of the thrust plate (30), the annular thrust plate (30) defining two axial hydrodynamic thrust bearings (40,42) respectively with the radial thrust bearing surface portion of the sleeve and the radial thrust bearing surface portion of the annular thrust bushing (54) and a hydrodynamic thrust bearing lubricant reservoir (41) between the two axial hydrodynamic thrust bearings (40,42) and between a cylindrical face of the thrust plate (30) and a facing cylindrical wall of the sleeve (16), and a hydrodynamic bearing lubricant in the bearing unit and at the pair of hydrodynamic journal bearings (34,36) and at the two axial hydrodynamic thrust bearings (40,42) and in the hydrodynamic bearing lubricant reservoir (41).

4. 发明公开

EP0827619A4 SUSPENSION DESIGN FOR SUPPORTING A LOW MASS READ/WRITE HEAD 失效
标题翻译： KOPFAUHÄNGUNGSVORRICHTUNGFÜRLESE- / SCHREIBKOPF MIT NIEDRIGER MASSE
公开(公告)号：EP0827619A4
公开(公告)日：1998-08-19
申请号：EP96913330
申请日：1996-05-01
申请人： QUANTUM CORP
发明人： WILLIAMS STEPHEN P , HATCH MICHAEL R
IPC分类号： G11B21/21 , G11B5/48 , G11B21/16
CPC分类号： G11B5/4833
摘要： 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.
摘要翻译：公开了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）安装在同轴旋转致动器臂上并且包括减小宽度的侧轨（48），具有通气区域（49）的负载梁（44）。悬架表现出改善的模态性能，特别是在扭转模式下。

5. 发明公开

EP0723697A4 FLEX CIRCUIT VIBRATION SENSOR 失效
标题翻译： SCHWINGUNGSSENSORFÜRFLEXIBLE SCHALTUNG
公开(公告)号：EP0723697A4
公开(公告)日：1996-11-13
申请号：EP95928248
申请日：1995-07-20
申请人： QUANTUM CORP
发明人： HATCH MICHAEL R , CASTAGNA JOSEPH T , HAN CHEE KWONG
IPC分类号： G01P15/12 , G11B5/48 , G11B21/10 , G11B5/58 , G11B21/20
CPC分类号： G11B5/4846 , G11B5/5582 , G11B5/59694
摘要： A method and apparatus for sensing vibration in a flex circuit (106) located between a rotary actuator (100) and electronics within a disk drive. Specifically, the apparatus contains a strain gauge (302/408) attached to or embedded within the flex circuit (300/400). The resistivity of the strain gauge varies in response to vibrations on the cable. This resistance variation can be transformed into electrical signals that are used by a servo system to move the actuator assembly in compensatory motion that effectively cancels any off-track motion cuased by the vibrations.
摘要翻译：一种用于感测位于旋转致动器（100）与磁盘驱动器内的电子器件之间的柔性电路（106）中的振动的方法和装置。具体而言，该设备包含附接到或嵌入柔性电路（300/400）中的应变仪（302/408）。应变片的电阻率响应于电缆上的振动而变化。这种电阻变化可以转换成电信号，伺服系统使用这些电信号来将致动器组件移动到补偿运动中，从而有效地消除由振动引起的任何偏离轨道运动。

6. 发明专利

DE69513473T2 未知
公开(公告)号：DE69513473T2
公开(公告)日：2000-08-03
申请号：DE69513473
申请日：1995-09-05
申请人： QUANTUM CORP
发明人： ZANG YAN , HATCH MICHAEL R , CHEN SHUO-HAO
IPC分类号： F16C17/10 , F16C33/10 , F16C33/74 , G11B19/20 , G11B33/14
摘要： The hydrodynamic bearing unit has a shaft, a sleeve rotatably disposed over the shaft and defining spaced-apart hydrodynamic journal bearings and an annular axial thrust plate secured to the shaft to form a shaft sub-assembly having a first radial surface in facing confrontation with a shoulder of the sleeve and defining a first hydrodynamic thrust bearing. A thrust bushing is secured to the sleeve to form a sleeve sub-assembly having a bearing surface in overlying facing engagement with a second radial surface of the annular axial thrust plate to form a second hydrodynamic thrust bearing. A seal for hydrodynamic lubricant is defined within an annular V-groove located adjacent to the shaft having an apex converging toward the second hydrodynamic thrust bearing. A motor rotates the sleeve sub-assembly relative to the shaft sub-assembly. Hydrodynamic lubricant within the annular V-groove is retained in place by capillary force in the absence of rotation and by centrifugal force in the presence of relative rotation between the sub-assemblies.

7. 发明专利

DE69513473D1 未知
公开(公告)号：DE69513473D1
公开(公告)日：1999-12-30
申请号：DE69513473
申请日：1995-09-05
申请人： QUANTUM CORP
发明人： ZANG YAN , HATCH MICHAEL R , CHEN SHUO-HAO
IPC分类号： F16C17/10 , F16C33/10 , F16C33/74 , G11B19/20 , G11B33/14
摘要： The hydrodynamic bearing unit has a shaft, a sleeve rotatably disposed over the shaft and defining spaced-apart hydrodynamic journal bearings and an annular axial thrust plate secured to the shaft to form a shaft sub-assembly having a first radial surface in facing confrontation with a shoulder of the sleeve and defining a first hydrodynamic thrust bearing. A thrust bushing is secured to the sleeve to form a sleeve sub-assembly having a bearing surface in overlying facing engagement with a second radial surface of the annular axial thrust plate to form a second hydrodynamic thrust bearing. A seal for hydrodynamic lubricant is defined within an annular V-groove located adjacent to the shaft having an apex converging toward the second hydrodynamic thrust bearing. A motor rotates the sleeve sub-assembly relative to the shaft sub-assembly. Hydrodynamic lubricant within the annular V-groove is retained in place by capillary force in the absence of rotation and by centrifugal force in the presence of relative rotation between the sub-assemblies.

8. 发明专利

CA2232862A1 ROLL-BIASED HEAD SUSPENSION FOR REDUCED TRACK MISREGISTRATION 未知
公开(公告)号：CA2232862A1
公开(公告)日：1998-02-12
申请号：CA2232862
申请日：1997-08-04
申请人： QUANTUM CORP
发明人： JACOBY JON E , HATCH MICHAEL R , LOW JAMES M , RIENER TIMOTHY A , WILLIAMS STEPHEN P
IPC分类号： G11B21/16 , G11B5/48 , G11B5/58 , G11B33/10 , G11B5/596 , G11B21/10 , G11B21/20
摘要： A method corrects track misregistraton attributable to out of plane motions of a rotating disk (10) in a hard disk drive (13), and includes the steps of measuring a base plate roll-bias angle between the rotating data storage disk and the head arm (15) with a precision measuring device, and connecting the head arm and load beam (17) at a roll-bias angle selected to minimize track misregistration attributable to the roll-bias. A number of connection arrangements and structures are presented in order to achieve the desired reduction in track misregistration.

9. 发明专利

DE69020433T2 未知
公开(公告)号：DE69020433T2
公开(公告)日：1996-03-07
申请号：DE69020433
申请日：1990-05-29
申请人： QUANTUM CORP
发明人： MOON WILLIAM G , HATCH MICHAEL R
IPC分类号： G11B21/21 , G11B5/60 , G11B21/12 , G11B25/04
摘要： A data transducer head mounting structure for a height compacted, low power head and disk assembly of a fixed disk data storage subsystem has an elongated load beam including a head arm attachment end region for attachment to an outward end of an actuator head arm; a leaf spring loading region; a flexure attachment region for attachment of a gimbal flexure for mounting a transducer head; a dynamic loading tab formed at the outermost part of the head end region beyond the transducer head; and, a load beam region located between the leaf spring loading region and the dynamic loading tab. In one aspect of the invention a loading ramp structure is positioned adjacent to a peripheral edge of the storage disk and cooperates with the dynamic loading tab. In one independent aspect of the present invention, the load beam region includes two L-shaped flanges facing toward an adjacent data storage surface, and a trussing structure is attached to the outer surfaces of the flanges to enclose the load beam region. In a further aspect, the leaf spring loading region including two parallel outer segments defining a central longitudinal opening which are dimensioned to tune torsional mode resonances while maintaining a predetermined head loading bias force.

10. 发明专利

DE69020433D1 未知
公开(公告)号：DE69020433D1
公开(公告)日：1995-08-03
申请号：DE69020433
申请日：1990-05-29
申请人： QUANTUM CORP
发明人： MOON WILLIAM G , HATCH MICHAEL R
IPC分类号： G11B21/21 , G11B5/60 , G11B21/12 , G11B25/04
摘要： A data transducer head mounting structure for a height compacted, low power head and disk assembly of a fixed disk data storage subsystem has an elongated load beam including a head arm attachment end region for attachment to an outward end of an actuator head arm; a leaf spring loading region; a flexure attachment region for attachment of a gimbal flexure for mounting a transducer head; a dynamic loading tab formed at the outermost part of the head end region beyond the transducer head; and, a load beam region located between the leaf spring loading region and the dynamic loading tab. In one aspect of the invention a loading ramp structure is positioned adjacent to a peripheral edge of the storage disk and cooperates with the dynamic loading tab. In one independent aspect of the present invention, the load beam region includes two L-shaped flanges facing toward an adjacent data storage surface, and a trussing structure is attached to the outer surfaces of the flanges to enclose the load beam region. In a further aspect, the leaf spring loading region including two parallel outer segments defining a central longitudinal opening which are dimensioned to tune torsional mode resonances while maintaining a predetermined head loading bias force.

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