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1. 发明授权

US5644084A Method of measuring natural frequency of motor 失效
标题翻译：测量电机固有频率的方法
公开(公告)号：US5644084A
公开(公告)日：1997-07-01
申请号：US429547
申请日：1995-04-27
申请人： Shinji Kinoshita , Mitsuru Ide , Koichi Katakura
发明人： Shinji Kinoshita , Mitsuru Ide , Koichi Katakura
IPC分类号： G01H17/00 , G01H13/00 , H02K11/00 , H02K15/14
CPC分类号： G01H13/00
摘要： A current feed means is connected to an armature coil of a motor. Current is fed from the current feed means to the armature coil while the frequency of the current is gradually varied from a preset frequency to another preset frequency, thereby to vibrate the motor. The amplitudes of the frequencies are measured by a frequency analyzer means, which is brought into contact with the motor. The frequency at which the amplitude of the vibration of the motor is peaked indicates the natural frequency of the motor.
摘要翻译：电流馈送装置连接到电动机的电枢线圈。电流从电流馈送装置馈送到电枢线圈，同时电流的频率从预置频率逐渐变化到另一预置频率，从而使电动机振动。频率的振幅由与电动机接触的频率分析装置测量。电动机振动幅度达到峰值的频率表示电机的固有频率。

2. 发明授权

US5633769A Magnetic disc drive device 失效
标题翻译：磁盘驱动装置
公开(公告)号：US5633769A
公开(公告)日：1997-05-27
申请号：US439220
申请日：1995-05-11
申请人： Shinji Kinoshita , Mitsuru Ide , Toru Kumagai
发明人： Shinji Kinoshita , Mitsuru Ide , Toru Kumagai
IPC分类号： F16C33/80 , G11B19/20 , G11B33/14
CPC分类号： F16C33/80 , G11B19/2009 , G11B33/14 , F16C2370/12
摘要： A magnetic disc drive device includes a labyrinth structure proximate to the ball bearings to effectively prevent scattering of particles. The labyrinth structures are formed by various arrangements where complicated passages are defined by elements arranged proximate to the inner ring and the outer ring of a ball bearing. One of the elements forming the passages being either the hub or the frame of the magnetic disc drive device.
摘要翻译：磁盘驱动装置包括靠近球轴承的迷宫式结构，以有效地防止颗粒散射。迷宫结构由各种布置形成，其中复杂的通道由靠近内圈和球轴承的外圈布置的元件限定。形成通道的元件之一是磁盘驱动装置的轮毂或框架。

3. 发明授权

US5588753A Disk drive motor with labyrinth seal 失效
标题翻译：带迷宫密封的磁盘驱动电机
公开(公告)号：US5588753A
公开(公告)日：1996-12-31
申请号：US518486
申请日：1995-08-15
申请人： Shinji Kinoshita , Mitsuru Ide
发明人： Shinji Kinoshita , Mitsuru Ide
IPC分类号： F16C19/54 , F16C33/80 , F16C35/06 , G11B19/20 , H02K5/124
CPC分类号： F16C19/54 , F16C33/80 , F16C35/061 , G11B19/2009 , H02K5/124 , F16C2370/12
摘要： A disk drive motor having a center shaft, a pair of ball bearings inner rings thereof being fixedly fitted with the center shaft while interposing a predetermined distance therebetween, a hub being supported so as to be rotatable about the center shaft while having outer rings of the ball bearings fixed to an inner hole thereof, a drive magnet integrally rotating the hub, a stator core being arranged so as to confront the drive magnet, and a first seal means and a second seal means being respectively arranged along ways to a space outside the motor to constitute seal mechanisms while communicating the respective ball bearings with the space outside the motor, wherein an annular spacer is fixedly fitted with the center shaft between the inner rings of the pair of ball bearings and an outer circumferential surface of the spacer confronts an inner circumferential surface of the inner hole of the hub while interposing a small gap therebetween, so that a labyrinth seal mechanism is formed.
摘要翻译：一种具有中心轴的盘驱动马达，一对滚珠轴承的内圈与中心轴固定，同时在其间插入预定的距离;轮毂被支承成可围绕中心轴旋转，同时具有固定在其内孔的滚珠轴承，一体地旋转轮毂的驱动磁体，定位铁心，以与驱动磁体相对的方式布置，第一密封装置和第二密封装置分别沿着外部的空间马达构成密封机构，同时使相应的滚珠轴承与电动机外部的空间连通，其中环形间隔件与中心轴固定地配合在一对球轴承的内圈之间，并且间隔件的外周面面对内轮毂的内孔的周面，同时在其间插入小间隙，从而形成迷宫式密封机构。

4. 发明授权

US6023839A Disk drive motor, and method of manufacturing its rotor 失效
标题翻译：磁盘驱动电动机及其转子的制造方法
公开(公告)号：US6023839A
公开(公告)日：2000-02-15
申请号：US883703
申请日：1997-06-27
申请人： Shinji Kinoshita , Shinji Ohta , Mitsuru Ide
发明人： Shinji Kinoshita , Shinji Ohta , Mitsuru Ide
IPC分类号： H02K1/27 , G11B17/028 , G11B19/20 , G11B25/04 , H02K15/03 , H02K15/02 , G11B17/04 , H02K1/22 , H02K7/00
CPC分类号： G11B17/0282 , G11B19/2009 , G11B25/043 , H02K15/03 , H02K1/2786 , Y10T29/49012
摘要： A motor rotor 10 is formed as follows: First, in a first forging step, a hum manufacturing primary block 6A is formed. Next, a second forging step B is effected to form the primary blank 6A into a secondary blank 6B. In this step, a forging die is used to secure an annular yoke 34 to the inner cylindrical surface 61a of a hub cylindrical portion 61 by punching, in such a manner that both whole edges of the annular yoke are sealingly closed thereby. In the second forging step B, by drawing the inner cylindrical surface 34a of the annular yoke, its circularity is improved. The annular yoke can be secured to the hub cylindrical portion with use of an adhesive agent. Moreover, the annular yoke can be fixed in such a manner that it is accurately coaxial with the hub cylindrical portion. In addition, the gap between the annular yoke and the hub cylindrical portion can be eliminated.
摘要翻译：马达转子10如下形成：首先，在第一锻造工序中，形成嗡嗡声制造主块6A。接下来，进行第二锻造步骤B以将主坯料6A形成为二次坯料6B。在该步骤中，使用锻造模具，通过冲压将环形轭34固定在轮毂圆筒部61的内圆筒面61a上，使得环形轭的两个整个边缘被密封地封闭。在第二锻造工序B中，通过拉伸环形轭的内圆筒面34a，其圆度提高。环形轭可以使用粘合剂固定到轮毂圆柱形部分。此外，环形轭可以以与轮毂圆筒部精确地同轴的方式固定。此外，可以消除环形轭和轮毂圆柱形部分之间的间隙。

5. 发明授权

US5872682A Disc drive motor 失效
标题翻译：盘式驱动电机
公开(公告)号：US5872682A
公开(公告)日：1999-02-16
申请号：US972697
申请日：1997-11-18
申请人： Masayoshi Saichi , Mitsuru Ide
发明人： Masayoshi Saichi , Mitsuru Ide
IPC分类号： G11B17/028 , G11B17/038 , G11B19/20
CPC分类号： G11B19/2009 , G11B17/038 , G11B17/0287
摘要： A disc drive motor comprises a fixed a fixed shaft, a ball bearing fitted on the fixed shaft, a cylindrical hub rotatably supported by the ball bearing, a clamper for fixing a disc to the hub and a cap secured to the hub so as to cover one open end of an opening portion of the hub. The cap includes an engaging element formed as part of the cap for engaging with a rotation stopper jig in order to stop rotation of the hub when clamping the discs. The engaging element includes a protruding or recessed portion of the cap. The engaging may be in the form of a polygon or, in particular, a regular polygon.
摘要翻译：磁盘驱动电动机包括固定固定轴，安装在固定轴上的滚珠轴承，由球轴承可旋转地支撑的圆柱形轮毂，用于将盘固定到轮毂的夹持器和固定到轮毂的盖，以覆盖轮毂的开口部分的一个开口端。盖包括形成为盖的一部分的接合元件，用于与旋转止动器夹具接合，以便在夹持盘时停止轮毂的旋转。接合元件包括盖的突出或凹入部分。接合可以是多边形或特别是正多边形的形式。

6. 发明授权

US5572384A Magnetic disk drive device having lead wire holding structure 失效
标题翻译：具有导线保持结构的磁盘驱动装置
公开(公告)号：US5572384A
公开(公告)日：1996-11-05
申请号：US216281
申请日：1994-03-23
申请人： Toru Kumagai , Mitsuru Ide
发明人： Toru Kumagai , Mitsuru Ide
IPC分类号： H02K3/50 , G11B19/20 , G11B25/04 , G11B33/12 , H02K5/22 , G11B17/02
CPC分类号： G11B33/121 , G11B19/2009 , G11B25/043 , H02K5/225 , H02K2211/03
摘要： A magnetic disk drive device has a hub for driving a magnetic disk when the magnetic disk is placed on the hub. A drive magnet is fastened to the inner surface of the hub. A stator core, with a coil wound thereabout, is located in opposition to the drive magnet. A frame is provided for fixedly supporting the stator core. A cutout portion is formed in the bottom of the frame, and a flexible printed circuit is disposed within the cutout portion. The coil terminal wires of the stator core and flexible lead wires are connected to the flexible printed circuit. A plural number of protrusions integral with the frame are disposed within the cutout portion. An arc-shaped lead wire holder, which is arc-shaped along the circumference of the frame, is fitted to the plural number of protrusions.
摘要翻译：磁盘驱动装置具有用于在将磁盘放置在轮毂上时驱动磁盘的集线器。驱动磁体固定在轮毂的内表面上。定子铁芯，其上缠绕有线圈，位于与驱动磁体相对的位置。设置有用于固定地支撑定子芯的框架。在框架的底部形成切口部分，并且在切口部分内设置柔性印刷电路。定子铁芯和柔性引线的线圈端子线连接到柔性印刷电路。与框架成一体的多个突起设置在切口部分内。沿着框架的圆周呈圆弧状的圆弧状的引线保持器嵌合在多个突起上。

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