公开(公告)号：US20080030895A1

公开(公告)日：2008-02-07

申请号：US11596417

申请日：2005-05-13

申请人： Rikuro Obara ,  Hiroshi Yoshikawa

发明人： Rikuro Obara ,  Hiroshi Yoshikawa

IPC分类号： G11B7/00

CPC分类号： G11B19/2018 ,  F16C17/045 ,  F16C17/107 ,  F16C33/107 ,  F16C33/121 ,  F16C2204/60 ,  F16C2370/12 ,  Y10T29/49639 ,  Y10T29/49707

摘要： A fluid dynamic bearing having a shaft (12) and a bearing sleeve (11) rotatably supported relative to each other. At least one of the shaft and the bearing sleeve is made of steel or stainless steel made of by weight C: 0.6˜1.20%; Si: 1.0 or less; Mn: 1.0% or less; Cr: 10.5˜18.0%; Mo: 1.0% or less; S.: 0.03% or less; and Fe. The dynamic pressure bearing surface (20) is formed by ridges (22) remaining in between multiple dynamic pressure grooves (21) formed by electrochemical machining.

摘要翻译： 具有轴（12）和轴承套（11）的流体动力轴承相对于彼此可旋转地支撑。 轴和轴承套中的至少一个由钢或不锈钢制成，重量C：0.6〜1.20％; Si：1.0以下; Mn：1.0％以下; Cr：10.5〜18.0％; Mo：1.0％以下; S：0.03％以下; 和Fe。 动压承受面（20）由残留在通过电化学加工形成的多个动压槽（21）之间的脊（22）形成。

公开(公告)号：US07764463B2

公开(公告)日：2010-07-27

申请号：US11596417

申请日：2005-05-13

申请人： Rikuro Obara ,  Hiroshi Yoshikawa

发明人： Rikuro Obara ,  Hiroshi Yoshikawa

IPC分类号： G11B17/02 ,  F16C32/06 ,  B21K1/10

CPC分类号： G11B19/2018 ,  F16C17/045 ,  F16C17/107 ,  F16C33/107 ,  F16C33/121 ,  F16C2204/60 ,  F16C2370/12 ,  Y10T29/49639 ,  Y10T29/49707

摘要： A fluid dynamic bearing having a shaft (12) and a bearing sleeve (11) rotatably supported relative to each other. At least one of the shaft and the bearing sleeve is made of steel or stainless steel made of by weight C: 0.6˜1.20%; Si: 1.0% or less; Mn: 1.0% or less; Cr: 10.5˜18.0%; Mo: 1.0% or less; S.: 0.03% or less; and Fe. The dynamic pressure bearing surface (20) is formed by ridges (22) remaining in between multiple dynamic pressure grooves (21) formed by electrochemical machining.

摘要翻译： 具有轴（12）和轴承套（11）的流体动力轴承相对于彼此可旋转地支撑。 轴和轴承套中的至少一个由钢或不锈钢制成，重量C：0.6〜1.20％; Si：1.0％以下; Mn：1.0％以下; Cr：10.5〜18.0％ Mo：1.0％以下; S：0.03％以下; 和Fe。 动压承受面（20）由残留在通过电化学加工形成的多个动压槽（21）之间的脊（22）形成。

公开(公告)号：US06734591B2

公开(公告)日：2004-05-11

申请号：US10392958

申请日：2003-03-21

申请人： Rikuro Obara ,  Hiroshi Yoshikawa

发明人： Rikuro Obara ,  Hiroshi Yoshikawa

IPC分类号： H02K708

CPC分类号： F16C19/54 ,  F16C19/06 ,  F16C19/08 ,  F16C35/077 ,  F16C2370/12 ,  G11B19/2009 ,  H02K5/1735

摘要： A spindle motor comprising a double row bearing device including a shaft, a sleeve surrounding the shaft, and a pair of upper and lower rows of balls, a cylindrical bearing holder extending upwardly from a base of the spindle motor for accommodating the sleeve within a vertical bore of the holder, and a rotor hub mounted on the shaft for journaling the rotor hub rotatably on the base, the spindle motor is characterized in that a reduced inner diameter portion of an inner diameter smaller than the outer diameter of the sleeve is formed on the inner surface of the bore of the bearing holder between the upper and lower larger inner diameter portions to urge the sleeve inwardly by the reduced inner diameter portion to deform it elastically to form a squeezed portion protruding inwardly of the sleeve between the upper and lower rows of balls.

摘要翻译： 一种主轴电动机，包括双列轴承装置，其包括轴，围绕轴的套筒和一对上排和下排的滚珠，从主轴电机的底部向上延伸的圆柱形轴承保持器，用于将套筒容纳在垂直 所述保持器的孔和安装在所述轴上的转子毂用于将所述转子轮毂可旋转地安装在所述基座上，所述主轴电机的特征在于，内径小于所述套筒外径的内径减小的部分形成在 轴承保持器的孔的内表面在上和下较大内径部分之间，以通过减小的内径部分向内推动套筒，以使其弹性变形，以形成在套筒之间向上突出的上下行之间的挤压部分 的球。

公开(公告)号：US06563243B2

公开(公告)日：2003-05-13

申请号：US09897599

申请日：2001-07-03

申请人： Rikuro Obara ,  Hiroshi Yoshikawa

发明人： Rikuro Obara ,  Hiroshi Yoshikawa

IPC分类号： H02K708

CPC分类号： F16C19/54 ,  F16C19/06 ,  F16C19/08 ,  F16C35/077 ,  F16C2370/12 ,  G11B19/2009 ,  H02K5/1735

摘要： A spindle motor comprising a double row bearing device including a shaft, a sleeve surrounding the shaft, and a pair of upper and lower rows of balls, a cylindrical bearing holder extending upwardly from a base of the spindle motor for accommodating the sleeve within a vertical bore of the holder, and a rotor hub mounted on the shaft for journaling the rotor hub rotatably on the base, the spindle motor is characterized in that a reduced inner diameter portion of an inner diameter smaller than the outer diameter of the sleeve is formed on the inner surface of the bore of the bearing holder between the upper and lower larger inner diameter portions to urge the sleeve inwardly by the reduced inner diameter portion to deform it elastically to form a squeezed portion protruding inwardly of the sleeve between the upper and lower rows of balls.

公开(公告)号：US06794774B2

公开(公告)日：2004-09-21

申请号：US10316829

申请日：2002-12-12

申请人： Rikuro Obara ,  Hiroshi Yoshikawa

发明人： Rikuro Obara ,  Hiroshi Yoshikawa

IPC分类号： H02K524

CPC分类号： G11B19/2009 ,  F16C19/54 ,  F16C35/077 ,  F16C2370/12

摘要： A spindle motor of the present invention is capable of keeping its ball (5a, 5b)'s pre-load constant, because a sleeve (6) is capable of being resiliently deformed due to its resiliency, and therefore capable of constantly keeping a pre-load applied to the balls (5a, 5b) from inner and inner ring raceways of inner and outer rings (3a, 4a, 3b, 4b) of ball bearings (3, 4). In this motor, a rotor hub (7) has an axial center bore (8). This bore (8) is provided with: a large-diameter bore portions in its opposite axial ends; and, a small-diameter bore portion (8a) axially interposed between the large-diameter bore portions. An inner diameter of the small-diameter bore portion (8a) is smaller than an outer diameter of the sleeve (6). The axial center bore (8) of the hub (7) is fitted to an outer peripheral surface of the sleeve (6) in an insertion manner through a heating shrinkage fit process, so that the sleeve (6) is subjected to a radially inwardly exerted pressure applied from outside to resiliently deform radially inwardly. As a result, a small-diameter portion (6a) is formed in the sleeve (6) to extend radially inwardly between the outer rings (3b, 4b).

摘要翻译： 本发明的主轴电动机能够保持其球（5a，5b）的预加载恒定，因为套筒（6）由于其弹性而能够弹性变形，因此能够不断地保持预先 从滚珠轴承（3,4）的内圈和外圈（3a，4a，3b，4b）的内圈和内圈滚道施加到滚珠（5a，5b）上。 在该电动机中，转子毂（7）具有轴向中心孔（8）。 该孔（8）设置有：在其相对轴向端部的大直径孔部分; 以及轴向插入在大直径孔部之间的小直径孔部（8a）。 小直径孔部（8a）的内径小于套筒（6）的外径。 轮毂（7）的轴向中心孔（8）通过加热收缩配合工艺以插入方式装配到套筒（6）的外周表面，使得套筒（6）经受径向向内 施加从外部施加的压力以径向向内弹性变形。 结果，在套筒（6）中形成小直径部分（6a），以在外环（3b，4b）之间径向向内延伸。

公开(公告)号：US06512316B2

公开(公告)日：2003-01-28

申请号：US09795490

申请日：2001-03-01

申请人： Rikuro Obara ,  Hiroshi Yoshikawa

发明人： Rikuro Obara ,  Hiroshi Yoshikawa

IPC分类号： H02K500

CPC分类号： G11B19/2009 ,  F16C19/54 ,  F16C35/077 ,  F16C2370/12

摘要： A spindle motor of the present invention is capable of keeping its ball (5a, 5b)'s pre-load constant, because a sleeve (6) is capable of being resiliently deformed due to its resiliency, and therefore capable of constantly keeping a pre-load applied to the balls (5a, 5b) from inner and inner ring raceways of inner and outer rings (3a, 4a, 3b, 4b) of ball bearings (3, 4). In this motor, a rotor hub (7) has an axial center bore (8). This bore (8) is provided with: a large-diameter bore portions in its opposite axial ends; and, a small-diameter bore portion (8a) axially interposed between the large-diameter bore portions. An inner diameter of the small-diameter bore portion (8a) is smaller than an outer diameter of the sleeve (6). The axial center bore (8) of the hub (7) is fitted to an outer peripheral surface of the sleeve (6) in an insertion manner through a heating shrinkage fit process, so that the sleeve (6) is subjected to a radially inwardly exerted pressure applied from outside to resiliently deform radially inwardly. As a result, a small-diameter portion (6a) is formed in the sleeve (6) to extend radially inwardly between the outer rings (3b, 4b).

摘要翻译： 本发明的主轴电动机能够保持其球（5a，5b）的预加载恒定，因为套筒（6）由于其弹性而能够弹性变形，因此能够不断地保持预先 从滚珠轴承（3,4）的内圈和外圈（3a，4a，3b，4b）的内圈和内圈滚道施加到滚珠（5a，5b）上。 在该电动机中，转子毂（7）具有轴向中心孔（8）。 该孔（8）设置有：其相对轴向端部的大直径孔部; 以及轴向插入在大直径孔部之间的小直径孔部（8a）。 小直径孔部（8a）的内径小于套筒（6）的外径。 轮毂（7）的轴向中心孔（8）通过加热收缩配合工艺以插入方式装配到套筒（6）的外周表面，使得套筒（6）经受径向向内 施加从外部施加的压力以径向向内弹性变形。 结果，在套筒（6）中形成小直径部分（6a），以在外环（3b，4b）之间径向向内延伸。

公开(公告)号：US5649442A

公开(公告)日：1997-07-22

申请号：US553907

申请日：1995-11-06

申请人： Hiroshi Yoshikawa ,  Rikuro Obara

发明人： Hiroshi Yoshikawa ,  Rikuro Obara

IPC分类号： G11B25/04 ,  G11B33/02 ,  G11B33/12 ,  B21C23/00

CPC分类号： G11B33/121 ,  G11B25/04 ,  G11B33/02

摘要： In the manufacture of a casing base for a hard disc drive device, an elongate semi-product of a light metal having a predetermined sectional profile having opposite side frame portions, is extrusion molded and then cut to a predetermined length to obtain an eventual casing base, which is then formed with necessary holes and recessed or raised portions using a press, thus completing the casing base. Like the case of die casting, no cavities are generated, so that it is possible to readily carry out washing and surface treatment. In addition, unlike the case of forming frames in a sole press process, a large number of press forming steps are not involved, and it is possible to permit mass production of a highly accurate and highly rigid product in a small number of steps and at a low cost of manufacture.

摘要翻译： 在制造用于硬盘驱动装置的壳体基座时，具有具有相对侧框架部分的具有预定截面轮廓的轻金属的细长半成品被挤压成型，然后切割成预定长度，以获得最终的套管基座 ，然后使用冲压机形成必要的孔和凹部或凸起部分，从而完成壳体基部。 与压铸的情况一样，不产生空腔，因此可以容易地进行洗涤和表面处理。 此外，与在底压机中形成框架的情况不同，不涉及大量的压制成形工序，能够以少量的台阶大规模生产高精度，高刚性的产品 制造成本低。

公开(公告)号：US09151772B2

公开(公告)日：2015-10-06

申请号：US13582313

申请日：2010-03-16

申请人： Hiroshi Yoshikawa

发明人： Hiroshi Yoshikawa

IPC分类号： G01P11/00 ,  G01P15/00 ,  G01P3/489 ,  G06F7/499 ,  G01P3/481

CPC分类号： G01P3/489 ,  G01P3/481 ,  G06F7/4991

摘要： To include a pulse counting unit, a pulse timing unit, an overflow detection unit that holds a detected matter in an overflow register, a capture unit that holds an output of the pulse counting unit in a pulse counting register and holds an output of the pulse timing unit in a pulse timing register, and a computation unit (frequency calculation unit) that reads the pulse counting register, the pulse timing register, and the overflow register to calculate a frequency computation value, and when the pulse timing unit has overflowed, the computation unit adds a predetermined constant acquired by a period of a capture clock a period of a timing clock to pulse timing data at the previous interrupt to obtain pulse timing data acquired by a period of time from the last pulse edge a period of the timing clock.

摘要翻译： 为了包括脉冲计数单元，脉冲定时单元，将检测到的物体保持在溢出寄存器中的溢出检测单元，将脉冲计数单元的输出保持在脉冲计数寄存器中并保持脉冲的输出的捕获单元 脉冲定时寄存器中的定时单元和读取脉冲计数寄存器，脉冲定时寄存器和溢出寄存器的计算单元（频率计算单元）来计算频率计算值，并且当脉冲定时单元溢出时， 计算单元将由捕获时钟的周期获取的预定常数与定时时钟的周期相加在先前的中断处的脉冲定时数据，以获得从定时时钟的周期的最后脉冲沿开始的一段时间获取的脉冲定时数据 。

公开(公告)号：US08938099B2

公开(公告)日：2015-01-20

申请号：US13312206

申请日：2011-12-06

申请人： Hiroshi Yoshikawa

发明人： Hiroshi Yoshikawa

IPC分类号： H04N7/18 ,  G01B11/25 ,  H04N5/225

CPC分类号： H04N7/18 ,  G01B11/2545 ,  H04N5/2256

摘要： An image processing apparatus includes a projection unit adapted to project pattern-light onto an object; an image capturing unit adapted to capture the object; a calculation unit adapted to calculate a line direction of the pattern-light in each predetermined region of the image; a decision unit adapted to decide an epipolar-line based on a relationship between the projection unit and the image capturing unit; a determination unit adapted to determine whether an angle made by the direction of the epipolar-line and the line direction is not more than a predetermined value; and a detection unit adapted to detect a first-region when the angle is not more than the predetermined value, and detect a second-region when the angle is more than the predetermined value. The projection unit projects the pattern-light having a line component parallel to the epipolar-line.

摘要翻译： 图像处理装置包括：投影单元，其适于将图案光投射到物体上; 适于捕获所述物体的图像捕获单元; 计算单元，适于计算图像的每个预定区域中的图案光的线方向; 决定单元，其适于基于所述投影单元和所述图像拍摄单元之间的关系来决定对极线; 确定单元，用于确定由所述对极线和所述线方向的方向所产生的角度是否不大于预定值; 以及检测单元，其适于在所述角度不大于所述预定值时检测第一区域，并且当所述角度大于所述预定值时检测第二区域。 投影单元投影具有与分支线平行的线分量的图案光。

公开(公告)号：US08646853B2

公开(公告)日：2014-02-11

申请号：US12999207

申请日：2008-07-24

申请人： Yasuharu Itano ,  Hiroshi Yamada ,  Etsuji Matsuyama ,  Hiroshi Yoshikawa

发明人： Yasuharu Itano ,  Hiroshi Yamada ,  Etsuji Matsuyama ,  Hiroshi Yoshikawa

IPC分类号： B60T11/20

CPC分类号： B60T17/228 ,  B60T8/1893 ,  B60T8/3235 ,  B60T13/665

摘要： To provide a train braking device including a controller that controls a brake cylinder pressure acting on a brake cylinder based on a service brake command or an emergency brake command, the train braking device includes a supply valve for supplying compressed air to the brake cylinder and an exhaust valve for adjusting a pressure of the supplied compressed air. The controller includes an electromagnetic-valve drive circuit, which includes a first switch circuit that a first switch for slide control is connected in parallel to ends of a serially connected circuit of a first switch for emergency brake and a first switch for service brake control with its one end being connected to a circuit power supply and the other end being connected to the supply valve, and a second switch circuit that a second switch for slide control is connected in parallel to ends of a serially connected circuit of a second switch for emergency brake and a second switch for service brake control with its one end being connected to the first switch circuit and the other end being connected to the exhaust valve.

摘要翻译： 为了提供一种列车制动装置，其包括控制器，其基于行驶制动指令或紧急制动指令来控制作用在制动缸上的制动液缸压力，所述列车制动装置包括用于向制动缸供给压缩空气的供给阀， 排气阀，用于调节供应的压缩空气的压力。 该控制器包括一个电磁阀驱动电路，它包括第一开关电路，第一开关用于滑动控制，并联连接到用于紧急制动的第一开关的串联连接电路的端部和用于行车制动控制的第一开关， 其一端连接到电路电源，另一端连接到供应阀;以及第二开关电路，其用于滑动控制的第二开关并联连接到用于紧急情况的第二开关的串联电路的端部 制动器和用于行车制动控制的第二开关，其一端连接到第一开关电路，另一端连接到排气阀。