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1. 外观设计

USD357467S Disk unit 失效
公开(公告)号：USD357467S
公开(公告)日：1995-04-18
申请号：US16181
申请日：1993-12-09
申请人： Yoshiaki Sakai , Daihachiro Takasu , Kenji Matsumoto
设计人： Yoshiaki Sakai , Daihachiro Takasu , Kenji Matsumoto

2. 外观设计

USD357005S Disk unit 失效
公开(公告)号：USD357005S
公开(公告)日：1995-04-04
申请号：US16146
申请日：1993-12-09
申请人： Yoshiaki Sakai , Daihachiro Takasu , Kenji Matsumoto
设计人： Yoshiaki Sakai , Daihachiro Takasu , Kenji Matsumoto

3. 外观设计

USD358140S Disk drive unit 失效
公开(公告)号：USD358140S
公开(公告)日：1995-05-09
申请号：US16502
申请日：1993-12-16
申请人： Daihachiro Takasu , Kenji Matsumoto
设计人： Daihachiro Takasu , Kenji Matsumoto

4. 发明授权

US5263779A Thrust ball-bearing 失效
标题翻译：推力球轴承
公开(公告)号：US5263779A
公开(公告)日：1993-11-23
申请号：US990129
申请日：1992-12-14
申请人： Takahiro Sakaguchi , Yohji Abe , Daihachiro Takasu , Hiroshi Sugahara
发明人： Takahiro Sakaguchi , Yohji Abe , Daihachiro Takasu , Hiroshi Sugahara
IPC分类号： F16C19/10 , F16C33/38 , F16C33/66 , G11B19/20 , F16C33/46
CPC分类号： F16C33/3843 , F16C19/10 , F16C33/6614 , G11B19/2009 , F16C2370/12
摘要： A thrust ball-bearing in which a good lubrication is maintained for a long period of time and having a long service life. The bearing comprises a plurality of balls having a uniform diameter, a retainer which retains the balls, and two plates situated at either side of the retainer and rotatable relative to each other via the balls. The retainer has a thickness less than the diameter of the ball. A plurality of holes that retain each ball is provided on the retainer and a groove having a rectangular cross section is formed in a portion between two adjacent holes. An amount of grease applied to the ball is collected inside the groove and provided to the ball located on the downstream side of flowing grease without moving outwardly of the groove even if a centrifugal force generated by a rotation of the bearing is exerted.
摘要翻译：推力球轴承，长时间保持良好的润滑性，使用寿命长。轴承包括具有均匀直径的多个球，保持球的保持器和位于保持器的任一侧的两个板，并经由球相对于彼此旋转。保持器的厚度小于球的直径。保持每个球的多个孔设置在保持器上，并且在两个相邻孔之间的部分中形成具有矩形横截面的槽。施加到球上的润滑脂的量被收集在凹槽内，并且即使发生由轴承的旋转产生的离心力也被提供给位于流动润滑脂的下游侧的球，而不从槽的外侧移动。

5. 发明授权

US5371635A Electronic index pulse generating system for speed control in rotating disk data 失效
标题翻译：电子索引脉冲发生系统，用于旋转磁盘数据中的速度控制
公开(公告)号：US5371635A
公开(公告)日：1994-12-06
申请号：US894512
申请日：1992-06-04
申请人： Takahiro Sakaguchi , Daihachiro Takasu
发明人： Takahiro Sakaguchi , Daihachiro Takasu
IPC分类号： G11B19/28 , H02P6/16 , G11B19/24
CPC分类号： G11B19/28
摘要： An index pulse generating system utilizes two periodic motor speed signals, one generated by a speed sensor coil actuated upon by a permanent magnet rotor mounted to a turntable, and the other generated by one of magnetoelectric converters acted upon by another permanent magnet rotor mounted to the turntable as a part of a disk drive motor. The two motor speed signals are translated respectively into two series of discrete motor speed pulses. One of the two series of motor speed pulses are produced at rates of two different predetermined numbers per complete revolution of the turntable. The two predetermined numbers have no common measure so that an AND gate or the like inputting the two series of motor speed pulses puts out at least one pulse during each turntable revolution, with the output pulse being representative of a specific angular position of the turntable.
摘要翻译：索引脉冲发生系统利用两个周期性的电动机速度信号，一个由安装在转台上的永磁转子致动的速度传感器线圈产生的电动机速度信号，另一个由安装在该转盘上的另一个永磁转子转盘作为磁盘驱动器电机的一部分。两个电机速度信号分别转换成两个系列的分立电机速度脉冲。两组电动机速度脉冲中的一个以转盘的每转一圈的两个不同的预定数量产生。这两个预定数量没有共同的测量，因此输入两组电动机速度脉冲的“与”门等在每个转盘旋转期间输出至少一个脉冲，输出脉冲代表转台的特定角位置。

6. 发明授权

US5197181A Motor positioning method 失效
标题翻译：电机定位方法
公开(公告)号：US5197181A
公开(公告)日：1993-03-30
申请号：US879743
申请日：1992-05-06
申请人： Yohji Abe , Takahiro Sakaguchi , Daihachiro Takasu , Hiroshi Sugahara
发明人： Yohji Abe , Takahiro Sakaguchi , Daihachiro Takasu , Hiroshi Sugahara
IPC分类号： G11B19/20 , G11B25/04 , G11B33/12 , H02K5/00
CPC分类号： G11B33/121 , G11B19/20 , G11B25/043 , H02K5/00 , Y10T29/49009 , Y10T29/49901 , Y10T29/53143
摘要： A motor positioning method includes steps of: providing a frame of a disk drive apparatus having locating holes spaced apart from each other, the locating holes being located in accordance with a predetermined positional relationship between the locating holes and a target position; placing a positioning jig on a base surface, the positioning jig having a first connecting portion with a diameter corresponding to a reference opening at the target position and second connecting portions with diameters corresponding to respective ones of the locating holes, the second connecting portions and the first connecting portion being located in accordance with the positional relationship; placing the frame onto the positioning jig so that the second connecting portions are fitted into the locating holes; and placing a board having a drive motor, a shaft and the reference opening at the target position, onto the frame attached to the jig so that the first connecting portion is fitted into the reference opening, thus positioning the shaft at the target position within the apparatus.
摘要翻译：电动机定位方法包括以下步骤：提供具有彼此间隔开的定位孔的盘驱动装置的框架，所述定位孔根据所述定位孔和目标位置之间的预定位置关系而定位; 所述定位夹具具有与所述目标位置处的基准开口对应的直径的第一连接部，所述定位夹具具有对应于所述定位孔，所述第二连接部和所述第二连接部第一连接部分根据位置关系定位; 将框架放置在定位夹具上，使得第二连接部分嵌入到定位孔中; 并将具有驱动电动机，轴和参考开口的板放置在目标位置上，到安装在夹具上的框架上，使得第一连接部分嵌入基准开口中，从而将轴定位在目标位置内仪器。

7. 发明授权

US5400191A Electronic index pulse generating system for speed control in rotating disk data storage apparatus 失效
标题翻译：用于旋转磁盘数据存储装置中速度控制的电子索引脉冲发生系统
公开(公告)号：US5400191A
公开(公告)日：1995-03-21
申请号：US239027
申请日：1994-06-23
申请人： Takahiro Sakaguchi , Daihachiro Takasu
发明人： Takahiro Sakaguchi , Daihachiro Takasu
IPC分类号： G11B19/28 , H02P6/16 , G11B19/24
CPC分类号： G11B19/28
摘要： An index pulse generating system utilizes two periodic motor speed signals, one generated by a speed sensor coil actuated upon by a permanent magnet rotor mounted to a turntable, and the other generated by one of magnetoelectric converters acted upon by another permanent magnet rotor mounted to the turntable as a part of a disk drive motor. The two motor speed signals are translated respectively into two series of discrete motor speed pulses. One of the two series of motor speed pulses are produced at rates of two different predetermined numbers per complete revolution of the turntable. The two predetermined numbers have no common measure so that an AND gate or the like inputting the two series of motor speed pulses puts out at least one pulse during each turntable revolution, with the output pulse being representative of a specific angular position of the turntable.
摘要翻译：索引脉冲发生系统利用两个周期性的电动机速度信号，一个由安装在转台上的永磁转子致动的速度传感器线圈产生的电动机速度信号，另一个由安装在该转盘上的另一个永磁转子转盘作为磁盘驱动器电机的一部分。两个电机速度信号分别转换成两个系列的分立电机速度脉冲。两组电动机速度脉冲中的一个以转盘的每转一圈的两个不同的预定数量产生。这两个预定数量没有共同的测量，因此输入两组电动机速度脉冲的“与”门等在每个转盘旋转期间输出至少一个脉冲，输出脉冲代表转台的特定角位置。

8. 外观设计

USD363474S Disk drive unit 失效
公开(公告)号：USD363474S
公开(公告)日：1995-10-24
申请号：US25695
申请日：1994-07-08
申请人： Daihachiro Takasu , Hiroaki Maruta
设计人： Daihachiro Takasu , Hiroaki Maruta

9. 发明授权

US5303223A Head carriage apparatus moved by a lead-screw shaft including resilient means for pressing the lead-screw shaft in a slanting direction toward the head carriage 失效
标题翻译：头托架装置由丝杠轴移动，该导螺杆轴包括弹性装置，用于沿着倾斜方向将导螺杆轴向头托架
公开(公告)号：US5303223A
公开(公告)日：1994-04-12
申请号：US802146
申请日：1991-12-03
申请人： Takahiro Sakaguchi , Daihachiro Takasu , Yasuhiko Ando , Kazuo Yokota , Hiroshi Tsuyuguchi
发明人： Takahiro Sakaguchi , Daihachiro Takasu , Yasuhiko Ando , Kazuo Yokota , Hiroshi Tsuyuguchi
IPC分类号： G11B21/02 , G11B21/08 , G11B5/55
CPC分类号： G11B21/083
摘要： A head carriage apparatus includes a head carriage including a head being placed onto a disk for recording and reproducing information on the disk and having an extension and a connecting portion formed on the extension integrally with the head carriage, a lead-screw shaft having a lead screw in which a thread ridge and a thread groove are formed, the connecting portion being fitted in the thread groove of the lead screw, a drive part for driving and rotating the lead-screw shaft so that the head carriage is moved in a radial direction of the disk parallel to an axial direction of the lead-screw shaft, a guide shaft for guiding movement of the head carriage in a direction parallel to the radial direction of the disk, the head carriage being supported by the guide shaft at two supporting positions being located apart from each other in axial direction of the guide shaft, and a resilient part for pressing the lead-screw shaft in a direction facing the head carriage, the resilient part being fixed at one end onto the head carriage, the other end of the resilient part being brought into contact with the lead-screw shaft at a position corresponding with respect to the axial direction of the lead-screw shaft to a position at which the connecting portion is fitted in the thread groove of the lead-screw shaft. One of the two supporting points of the guide shaft is displaced to a forwardly moved point in order to downsize a disk drive unit in which the head carriage apparatus is accommodated.
摘要翻译：头托架装置包括头托架，其包括头部，该头托架放置在盘上用于在盘上记录和再现信息，并且具有与头托架一体形成在延伸部上的连接部分和连接部分，具有引线的导螺杆轴螺纹，其中形成有螺纹脊和螺纹槽，连接部分装配在丝杠的螺纹槽中，驱动部分用于驱动和旋转丝杠轴，使得头托架沿径向移动所述导向轴用于引导所述头托架沿与所述盘的径向平行的方向的运动，所述头托架由所述引导轴支撑在两个支撑位置处，在引导轴的轴向方向上彼此分离，以及用于沿着与头部托架相对的方向按压丝杠轴的弹性部分，弹性部分在一端固定在头架上，弹性部分的另一端在与丝杠轴的轴向相对应的位置处与丝杠轴接触，到达连接部分安装在丝杠轴的螺纹槽中。引导轴的两个支撑点中的一个被移动到向前移动的点，以便小型化容纳头部托架装置的盘驱动单元。

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