公开(公告)号：US5519688A

公开(公告)日：1996-05-21

申请号：US206254

申请日：1994-03-04

申请人： Michiaki Nagai ,  Takahiro Sakaguchi ,  Kazuhiko Inoue

发明人： Michiaki Nagai ,  Takahiro Sakaguchi ,  Kazuhiko Inoue

IPC分类号： G11B19/20 ,  G11B25/04 ,  G11B23/00

CPC分类号： G11B19/2009 ,  G11B25/043

摘要： A spindle motor mounting structure for a disk or a disk cartridge recording/reproducing apparatus includes a substrate, a spindle motor including a stator part fixed on the substrate, a spindle shaft, and a disk shaped rotor part rotatably supported on the spindle shaft, and a frame on which the substrate is mounted. The rotor part has a flange part which extends from an outer periphery thereof, and the frame includes a projecting part which confronts at least a part of the flange to prevent the rotor part from slipping out of the spindle shaft. A height of an upper surface of the projecting part from the substrate is less than or equal to a height of an upper surface of the rotor part from the substrate.

摘要翻译： 一种用于盘或盘盒记录/再现装置的主轴电机安装结构包括基板，包括固定在基板上的定子部分的主轴电机，主轴和可旋转地支撑在主轴上的盘形转子部分，以及 安装基板的框架。 转子部分具有从其外周延伸的凸缘部分，并且框架包括突出部分，该突出部分面对凸缘的至少一部分，以防止转子部件从主轴转出。 突出部的上表面的距离基板的高度小于或等于转子部的上表面与基板的高度。

公开(公告)号：US5257004A

公开(公告)日：1993-10-26

申请号：US901855

申请日：1992-06-22

申请人： Takahiro Sakaguchi ,  Michiaki Nagai

发明人： Takahiro Sakaguchi ,  Michiaki Nagai

IPC分类号： H01C10/32 ,  H01C17/00 ,  H05K1/18 ,  H01C10/40

CPC分类号： H01C17/006 ,  H05K1/181

摘要： A pre-set variable passive element can prevent faulty insulation between itself and a conductive board. A cylindrical member extended higher than a adjusting member is made of ceramic around the adjusting member which is rotatably fitted for adjustment of the value of resistance of the pre-set variable resistor element, the forming of the cylindrical member being integrally formed with a main part also formed in a ceramic. The cylindrical member is fitted into an opening bored in a stator board mainly of a steel plate, and the pre-set variable resistor is fitted on the stator board. The adjusting member which is contacted by a contact, by which the value of resistance of the pre-set variable resistor element is determined, and an inside periphery of the opening free from any insulating treatment is securely insulated by the cylindrical member.

摘要翻译： 预设可变无源元件可以防止其与导电板之间的故障绝缘。 延伸高于调节构件的圆柱形构件由调节构件周围的陶瓷制成，该调节构件可旋转地配合以调节预设可变电阻器元件的电阻值，圆柱形构件的形成与主要部分 也形成陶瓷。 圆柱形部件装配在主要以钢板为主的定子板上钻孔的开口中，预定的可变电阻器安装在定子板上。 接触的调节构件通过该触点与预定的可变电阻元件的电阻值确定，并且没有任何绝缘处理的开口的内周边被圆柱形构件牢固地绝缘。

公开(公告)号：US5245235A

公开(公告)日：1993-09-14

申请号：US884068

申请日：1992-05-15

申请人： Michiaki Nagai ,  Takahiro Sakaguchi

发明人： Michiaki Nagai ,  Takahiro Sakaguchi

IPC分类号： G11B19/20 ,  H02K11/00 ,  H02K21/24 ,  H02K29/08

CPC分类号： H02K29/08 ,  G11B19/2009 ,  H02K11/33 ,  H02K21/24

摘要： A spindle motor able to reduce leaking of magnetic flux of an index magnet to a magnetic head of a disc apparatus. In an axial gap type spindle motor having a rotor case rotatably supported by a base plate, an index magnet is provided to a face of the rotor case opposite to the base plate. A hall device is provided in an open space between a plurality of coils arranged radially on the base plate at a position opposite to the index magnet. A magnetic flux forms a closed loop by passing through the rotor case, and thus leaking of magnetic flux to the outside is reduced.

摘要翻译： 一种主轴电机，其能够减少索引磁体的磁通量泄漏到盘装置的磁头。 在具有由基板可旋转地支撑的转子壳体的轴向间隙型主轴电机中，在转子壳体的与基板相对的面上设置有分度磁铁。 霍尔器件设置在与引导磁体相对的位置处径向布置在基板上的多个线圈之间的开放空间中。 磁通通过转子壳体形成闭环，从而减小了磁通量泄漏到外部。

公开(公告)号：US5212417A

公开(公告)日：1993-05-18

申请号：US877281

申请日：1992-05-01

申请人： Michiaki Nagai ,  Takahiro Sakaguchi

发明人： Michiaki Nagai ,  Takahiro Sakaguchi

IPC分类号： G11B21/02 ,  G11B5/55 ,  H02K7/06 ,  H02K37/24

CPC分类号： G11B5/5521 ,  H02K37/24 ,  H02K7/06 ,  Y10T74/19805

摘要： A stepping motor for driving a head carriage having a motor axis on which is provided a lead screw comprises a seat plate that forms a back end of the motor, said seat plate being provided with a projection that projects toward a radial direction of the motor axis. At the time of the alignment of a head and a disk, the stepping motor is rotated by rotating a jig which is engaged with the projection. Thus the stationary position of the head carriage along a direction of its movement is adjusted.

摘要翻译： 一种用于驱动具有电机轴的头托架的步进电机，其上设有导螺杆，包括形成电动机后端的座板，所述座板设置有朝向电动机轴线的径向突出的突起 。 在头部和盘的对准时，通过旋转与突起接合的夹具来旋转步进电机。 因此，头托架沿其移动方向的固定位置被调节。