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1. 发明授权

US06249505B1 Disk drive motor 失效
公开(公告)号：US06249505B1
公开(公告)日：2001-06-19
申请号：US09686424
申请日：2000-10-11
申请人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
发明人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
IPC分类号： G11B1702
CPC分类号： F16F15/363 , G11B19/2009 , G11B19/2027
摘要： The present invention discloses a disk drive motor comprising a rotor having an annular space formed therein coaxially with the axis of rotation, and balancing member accommodated in the annular space and capable of changing its mass distribution circumferentially along the circle of the annular space. In case of any imbalanced rotation occurring during the rotation, the balancing member temporarily gather to a portion of the annular space where the mass imbalance is taking place. However, when the motor speed exceeds the value at which resonance takes place due to coincidence between the frequency of the vibration of the balancing member and the natural frequency of the motor, the balancing members move to a position symmetrical with the point of mass imbalance to eliminate the mass imbalance, thereby suppressing the run-out.

2. 发明授权

US06205110B1 Disk drive motor 失效
标题翻译：磁盘驱动电机
公开(公告)号：US06205110B1
公开(公告)日：2001-03-20
申请号：US09103727
申请日：1998-06-23
申请人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
发明人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
IPC分类号： G11B1920
CPC分类号： F16F15/363 , G11B19/2009 , G11B19/2027
摘要： The present invention discloses a disk drive motor comprising a rotor having an annular space formed therein coaxially with the axis of rotation, and balancing member accommodated in the annular space and capable of changing its mass distribution circumferentially along the circle of the annular space. In case of any imbalanced rotation occurring during the rotation, the balancing member temporarily gather to a portion of the annular space where the mass imbalance is taking place. However, when the motor speed exceeds the value at which resonance takes place due to coincidence between the frequency of the vibration of the balancing member and the natural frequency of the motor, the balancing members move to a position symmetrical with the point of mass imbalance to eliminate the mass imbalance, thereby suppressing the run-out.
摘要翻译：本发明公开了一种磁盘驱动电动机，其包括转子，该转子具有与旋转轴线同轴形成的环形空间，以及容纳在环形空间中并且能够沿着环形空间的圆周沿周向改变其质量分布的平衡构件。在旋转期间发生任何不平衡旋转的情况下，平衡构件临时收集到发生质量不平衡的环形空间的一部分。然而，当电动机转速超过平衡构件的振动频率与电动机的固有频率之间的一致时发生共振的情况下，平衡构件移动到与质量不平衡对称的位置消除质量不平衡，从而抑制耗尽。

3. 发明授权

US08099746B2 Motor, storage disk drive apparatus and motor manufacturing method 有权
标题翻译：电机，存储盘驱动装置及电机制造方法
公开(公告)号：US08099746B2
公开(公告)日：2012-01-17
申请号：US12858782
申请日：2010-08-18
申请人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
发明人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
IPC分类号： G11B17/028
CPC分类号： G11B17/0282 , F16C17/026 , F16C2370/12 , G11B19/2009 , H02K5/163 , H02K15/14 , Y10T29/49009
摘要： A motor includes a stationary unit, a bearing mechanism, a rotary unit, and a chucking device. The rotary unit includes a rotor yoke provided with a cover portion extending around the chucking device and designed to allow the storage disk to be directly or indirectly mounted thereto and a removal-preventing member fixed to the cover portion to prevent removal of the rotary unit from the stationary unit. The removal-preventing member made of metal. The removal-preventing member includes a removal-preventing portion, an upper fixing portion having a plurality of upper protrusions inserted into the through-holes of the cover portion and bent toward the upper surface of the cover portion, and a lower fixing portion making direct or indirect contact with the lower surface of the cover portion and cooperating with the upper fixing portion to fix the position of the removal-preventing portion in a direction parallel to the center axis.
摘要翻译：电动机包括固定单元，轴承机构，旋转单元和夹紧装置。旋转单元包括转子轭，该转子轭设置有围绕夹紧装置延伸的盖部分，并设计成允许存储盘直接或间接安装在其上，以及固定到盖部分的防止脱落构件，以防止将旋转单元从固定单元。防金属构件由金属制成。防去除部件包括防去除部分，上固定部分，其具有插入到盖部分的通孔中并朝向盖部分的上表面弯曲的多个上突出部分，以及直接或与盖部分的下表面间接接触并与上固定部分配合，以将防止移除部分的位置固定在平行于中心轴线的方向上。

4. 发明申请

US20050244086A1 Fluid Dynamic Pressure Bearing and Recording Disk Drive Device Comprising the Same 失效
标题翻译：流体动压轴承和记录盘驱动装置包括它
公开(公告)号：US20050244086A1
公开(公告)日：2005-11-03
申请号：US10908113
申请日：2005-04-28
申请人： Itsuo Murata , Harushige Osawa , Ming Feng , Shinya Tokunaga
发明人： Itsuo Murata , Harushige Osawa , Ming Feng , Shinya Tokunaga
IPC分类号： F16C17/10 , F16C17/02 , F16C19/00 , F16C33/10 , G11B19/20 , H02K7/08 , H02K21/22
CPC分类号： G11B19/2018 , F16C17/107 , F16C33/103 , F16C33/107 , F16C2370/12 , H02K7/085
摘要： In a radial minute gap between a substantially columnar shaft and an inner peripheral face of a substantially cylindrical sleeve, oil is retained and a radial dynamic pressure bearing is formed. A plurality of recessed portions are arranged in a circumferential direction on at least one of an outer peripheral face of the shaft and the inner peripheral face of the sleeve and a first hill portion is provided to an axial end portion of each the recessed portion. Thus, it is possible to achieve a dynamic pressure bearing with which sufficient radial shaft support can be obtained in spite of a short axial length.
摘要翻译：在基本上圆柱形的轴和基本圆柱形套筒的内周面之间的径向微小间隙中，保持油并形成径向动压轴承。在轴的外周面和套筒的内周面中的至少一个上沿圆周方向布置有多个凹部，并且在每个凹部的轴向端部设置有第一山丘部。因此，可以获得尽可能短的轴向长度可获得足够的径向轴支撑的动压轴承。

5. 发明授权

US6125098A Disk drive motor 失效
标题翻译：磁盘驱动电机
公开(公告)号：US6125098A
公开(公告)日：2000-09-26
申请号：US159357
申请日：1998-09-23
申请人： Harushige Osawa
发明人： Harushige Osawa
IPC分类号： H02K1/22 , F16F15/32 , F16F15/36 , G11B19/20 , H02K7/04
CPC分类号： G11B19/2009 , F16F15/36 , G11B19/2027 , H02K7/04
摘要： The present invention discloses a disk drive motor comprising a rotary member having an annular space formed therein coaxially with the axis of rotation, and ring-shaped balancing members accommodated in the annular space and capable of changing its mass distribution circumferentially along the circle of the annular space. In case of any imbalanced rotation occurring during the rotation, the balancing members temporarily gather at a portion of the annular space where the mass imbalance is taking place. When the motor speed exceeds the value at which resonance takes place due to coincidence between the frequency of the vibration of each of the balancing member and the natural frequency of the motor, the balancing members move to a position symmetrical with the point of mass imbalance to eliminate the mass imbalance, thereby reducing motor run-out.
摘要翻译：本发明公开了一种磁盘驱动电动机，其包括旋转部件，旋转部件具有与旋转轴线同轴地形成的环状空间，以及容纳在环状空间内的环状平衡部件，能够沿环状圆周方向改变其质量分布空间。在旋转期间发生任何不平衡旋转的情况下，平衡构件临时聚集在发生质量不平衡的环形空间的一部分处。当电动机速度超过由于平衡构件中的每一个的振动频率与电动机的固有频率之间的重合而发生共振时，平衡构件移动到与质量不平衡对称的位置消除质量不平衡，从而减少电机耗尽。

6. 发明授权

US08156513B2 Motor and storage disk drive apparatus 有权
标题翻译：电机和存储磁盘驱动装置
公开(公告)号：US08156513B2
公开(公告)日：2012-04-10
申请号：US12858903
申请日：2010-08-18
申请人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
发明人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
IPC分类号： G11B19/20
CPC分类号： H02K5/163 , G11B19/2009 , H02K7/09
摘要： A motor includes a bearing mechanism, a stationary unit including a stator arranged radially outwards of the bearing mechanism, and a rotary unit supported by the bearing mechanism at the upper side of the stationary unit for rotation about a center axis with respect to the stationary unit. The rotary unit includes a substantially cylindrical closed-top rotor yoke having a cover portion arranged to cover the stator. The bearing mechanism includes a substantially cylindrical closed-bottom bush formed by a press work, a sleeve fixed inside the bush and provided with an upper portion protruding beyond the bush and a shaft inserted into the sleeve. An upper end of the bush is lower than or flush with an upper end of the stator in a direction parallel to the center axis.
摘要翻译：电动机包括轴承机构，固定单元，其包括定位在轴承机构的径向外侧的定子，以及旋转单元，该旋转单元由固定单元的上侧的轴承机构支撑，用于相对于固定单元绕中心轴线旋转。旋转单元包括基本上圆柱形的封闭式转子轭，其具有覆盖定子的盖部分。轴承机构包括由冲压加工形成的大致圆柱形的封闭底部衬套，固定在衬套内的套筒，并且具有突出于衬套之外的上部和插入套筒中的轴。衬套的上端在与中心轴线平行的方向上比定子的上端低或与其齐平。

7. 发明申请

US20110047560A1 MOTOR, STORAGE DISK DRIVE APPARATUS AND MOTOR MANUFACTURING METHOD 有权
标题翻译：电机，存储盘驱动装置和电机制造方法
公开(公告)号：US20110047560A1
公开(公告)日：2011-02-24
申请号：US12858782
申请日：2010-08-18
申请人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
发明人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
IPC分类号： H02K5/167 , G11B17/028 , H02K15/00 , H02K21/22
CPC分类号： G11B17/0282 , F16C17/026 , F16C2370/12 , G11B19/2009 , H02K5/163 , H02K15/14 , Y10T29/49009
摘要： A motor includes a stationary unit, a bearing mechanism, a rotary unit, and a chucking device. The rotary unit includes a rotor yoke provided with a cover portion extending around the chucking device and designed to allow the storage disk to be directly or indirectly mounted thereto and a removal-preventing member fixed to the cover portion to prevent removal of the rotary unit from the stationary unit. The removal-preventing member made of metal. The removal-preventing member includes a removal-preventing portion, an upper fixing portion having a plurality of upper protrusions inserted into the through-holes of the cover portion and bent toward the upper surface of the cover portion, and a lower fixing portion making direct or indirect contact with the lower surface of the cover portion and cooperating with the upper fixing portion to fix the position of the removal-preventing portion in a direction parallel to the center axis.
摘要翻译：电动机包括固定单元，轴承机构，旋转单元和夹紧装置。旋转单元包括转子轭，该转子轭设置有围绕卡盘装置延伸的盖部，并设计成允许存储盘直接或间接地安装在其上，以及固定到盖部的防止脱落构件，以防止将旋转单元从固定单元。防金属构件由金属制成。防去除部件包括防去除部分，上固定部分，其具有插入到盖部分的通孔中并朝向盖部分的上表面弯曲的多个上突出部分，以及直接或与盖部分的下表面间接接触并与上固定部分配合，以将防止移除部分的位置固定在平行于中心轴线的方向上。

8. 发明申请

US20060082923A1 Spindle Motor and Recording Disk Driving Apparatus Having the Same 审中-公开
标题翻译：主轴电机和具有相同功能的记录盘驱动装置
公开(公告)号：US20060082923A1
公开(公告)日：2006-04-20
申请号：US11163480
申请日：2005-10-20
申请人： Harushige Osawa , Satoru Sodeoka
发明人： Harushige Osawa , Satoru Sodeoka
IPC分类号： G11B17/00
CPC分类号： G11B17/022
摘要： A spindle motor and a compact, thin recording disk driving apparatus consuming less power and capable of stable rotation are disclosed. A magnetic head, when accessing a recording disk, is pressed against the recording disk and generates a moment to tilt the rotational axis in a specified direction. A mechanism to constantly apply a bias moment in the opposite direction to the tilt reduces the maximum load moment and makes it possible to avoid the bearing damage while at the same time suppressing the bearing loss considerably.
摘要翻译：公开了一种主轴电动机和小型，薄型的记录盘驱动装置，其消耗较少的功率并且能够稳定地旋转。磁头在访问记录盘时被压靠在记录盘上并产生一个时刻以使旋转轴在指定的方向上倾斜。不断向倾斜方向施加偏置力的机构减小了最大负载力矩，并且可以避免轴承损坏，同时大大地抑制了轴承损耗。

9. 发明申请

US20110047561A1 MOTOR AND STORAGE DISK DRIVE APPARATUS 有权
标题翻译：电机和存储盘驱动器
公开(公告)号：US20110047561A1
公开(公告)日：2011-02-24
申请号：US12858903
申请日：2010-08-18
申请人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
发明人： Hidehiko Hidaka , Shigeo Hayashi , Hiroyuki Ichizaki , Akihiro Nakagawa , Tatsuya Tatara , Harushige Osawa , Atsushi Inoue , Kazuya Ichimura
IPC分类号： G11B19/20 , H02K5/167 , H02K21/22
CPC分类号： H02K5/163 , G11B19/2009 , H02K7/09
摘要： A motor includes a bearing mechanism, a stationary unit including a stator arranged radially outwards of the bearing mechanism, and a rotary unit supported by the bearing mechanism at the upper side of the stationary unit for rotation about a center axis with respect to the stationary unit. The rotary unit includes a substantially cylindrical closed-top rotor yoke having a cover portion arranged to cover the stator. The bearing mechanism includes a substantially cylindrical closed-bottom bush formed by a press work, a sleeve fixed inside the bush and provided with an upper portion protruding beyond the bush and a shaft inserted into the sleeve. An upper end of the bush is lower than or flush with an upper end of the stator in a direction parallel to the center axis.
摘要翻译：电动机包括轴承机构，包括定位在轴承机构的径向外侧的定子的固定单元以及由固定单元上侧的轴承机构支撑的旋转单元，用于相对于固定单元绕中心轴线旋转。旋转单元包括基本上圆柱形的封闭式转子轭，其具有覆盖定子的盖部分。轴承机构包括由冲压加工形成的大致圆柱形的封闭底部衬套，固定在衬套内的套筒，并且具有突出于衬套之外的上部和插入套筒中的轴。衬套的上端在与中心轴线平行的方向上比定子的上端低或与其齐平。

10. 发明授权

US07380989B2 Fluid dynamic pressure bearing and recording disk drive device comprising the same 失效
标题翻译：流体动压轴承和包括该流体动压轴承的记录盘驱动装置
公开(公告)号：US07380989B2
公开(公告)日：2008-06-03
申请号：US10908113
申请日：2005-04-28
申请人： Itsuo Murata , Harushige Osawa , Ming Feng , Shinya Tokunaga
发明人： Itsuo Murata , Harushige Osawa , Ming Feng , Shinya Tokunaga
IPC分类号： F16C33/02 , F16C33/06
CPC分类号： G11B19/2018 , F16C17/107 , F16C33/103 , F16C33/107 , F16C2370/12 , H02K7/085
摘要： In a radial minute gap between a substantially columnar shaft and an inner peripheral face of a substantially cylindrical sleeve, oil is retained and a radial dynamic pressure bearing is formed. A plurality of recessed portions are arranged in a circumferential direction on at least one of an outer peripheral face of the shaft and the inner peripheral face of the sleeve and a first hill portion is provided to an axial end portion of each the recessed portion. Thus, it is possible to achieve a dynamic pressure bearing with which sufficient radial shaft support can be obtained in spite of a short axial length.
摘要翻译：在基本上圆柱形的轴和基本圆柱形套筒的内周面之间的径向微小间隙中，保持油并形成径向动压轴承。在轴的外周面和套筒的内周面中的至少一个上沿圆周方向布置有多个凹部，并且在每个凹部的轴向端部设置有第一山丘部。因此，可以获得尽可能短的轴向长度可获得足够的径向轴支撑的动压轴承。

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