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公开(公告)号：US08934196B2
公开(公告)日：2015-01-13
申请号：US14079112
申请日：2013-11-13
发明人： Mitsuo Kodama , Ryusuke Sugiki , Akira Aoi
CPC分类号： G11B19/2018 , F16C17/107 , F16C33/745 , F16C35/02 , F16C2370/12 , G11B5/40 , G11B5/5582 , H02K5/16 , Y10T29/49025 , Y10T29/49027 , Y10T29/49032 , Y10T29/53165
摘要： A rotating apparatus includes a hub, a shaft housing portion having a center through-hole, and a base plate, having a base circular part that extends axially and with an inner surface thereof used as a bearing hole. Further included is a shaft with a cylindrical section housed in the through-hole, an extending section formed integrally with the cylindrical section and extending radially from a first end of the cylindrical section, and an annular section provided radially from a second end of the cylindrical section. Provided on the inner surface of the through-hole is a groove configured to generate radial dynamic pressure in lubricant. The rotatable rotor includes a portion encircling at least part of the annular section. An opening of the bearing hole surrounds a part of the shaft housing portion, the extending section inserted and fixed into the opening, with a hardening resin interposed therebetween.
摘要翻译： 旋转装置包括轮毂，具有中心通孔的轴壳体部分和基板，具有轴向延伸并且其内表面用作轴承孔的基部圆形部分。 进一步包括一个轴，其中圆柱形部分容纳在通孔中，一个延伸部分与该圆柱形部分整体形成并且从该圆柱形部分的第一端部径向延伸，并且从该圆柱形部分的第二端径向设置的环形部分 部分。 在通孔的内表面上设置有用于在润滑剂中产生径向动压的凹槽。 可旋转转子包括环绕至少部分环形部分的部分。 轴承孔的开口围绕轴容纳部分的一部分，延伸部分插入并固定到开口中，其间插入硬化树脂。
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公开(公告)号：US08885293B2
公开(公告)日：2014-11-11
申请号：US13866641
申请日：2013-04-19
发明人： Mitsuo Kodama , Taketo Nonaka , Shuji Tsurusako
IPC分类号： G11B19/20
CPC分类号： G11B33/08 , B21D53/10 , F16C17/107 , F16C33/107 , F16C2370/12 , G11B19/2036 , G11B25/043 , H02K5/167 , H02K7/08 , Y10T29/49639
摘要： A rotating device includes a shaft body that includes a lower rod and an upper rod formed with a retainer hole encircling a part of the lower rod and fixing the lower rod, a bearing body including a shaft encircling member that encircles the shaft body, and freely rotatable relative to the shaft body, a radial dynamic pressure generating groove which is provided in either one of the shaft body and the bearing body and which generates dynamic pressure in a radial direction, a thrust dynamic pressure generating groove which is provided in either one of the shaft body and the bearing body and which generates dynamic pressure in a thrust direction, and a lubrication medium present in a gap between the shaft body and the bearing body.
摘要翻译： 旋转装置包括：轴体，其包括下杆和形成有围绕下杆的一部分并固定下杆的保持孔的上杆;轴承体，包括围绕轴体的轴环形构件，并且自由地 可相对于轴体旋转的径向动压产生槽，其设置在轴体和轴承体中的任一个中，并且在径向方向上产生动压;推力动压产生槽，其设置在 轴体和轴承体，并且在推力方向上产生动压，以及存在于轴体和轴承体之间的间隙中的润滑介质。
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公开(公告)号：US08760810B2
公开(公告)日：2014-06-24
申请号：US14029889
申请日：2013-09-18
发明人： Ryusuke Sugiki
IPC分类号： G11B5/60
CPC分类号： G11B19/2018 , F16C17/107 , F16C32/0659 , F16C33/103 , F16C33/745 , F16C2370/12 , G11B5/4813 , G11B19/2036 , G11B33/123 , Y10T29/49639
摘要： A first sleeve rotatably extends around a shaft. First and second flanges are fixed to the shaft. A second sleeve extending around the first sleeve is fixed thereto. A first annular member fixed to the second sleeve surrounds the first flange. A second annular member fixed to the second flange surrounds a portion of the second sleeve. A first capillary seal includes a clearance between the first flange and the first annular member. A second capillary seal includes a clearance between the second annular member and the second sleeve. Lubricant is provided in the clearances in the first and second capillary seals. The second annular member and the second sleeve are designed so that the lubricant in the clearance in the second capillary seal can be viewed from a point in a radial position which is outward of the second sleeve as seen in an axial direction.
摘要翻译： 第一套筒围绕轴可旋转地延伸。 第一和第二法兰固定在轴上。 围绕第一套筒延伸的第二套筒固定在其上。 固定到第二套筒的第一环形构件围绕第一凸缘。 固定到第二凸缘的第二环形构件围绕第二套筒的一部分。 第一毛细管密封件包括第一凸缘和第一环形构件之间的间隙。 第二毛细管密封件包括第二环形构件和第二套筒之间的间隙。 润滑剂设置在第一和第二毛细管密封件的间隙中。 第二环形构件和第二套筒被设计成使得可以从在轴向方向看到的第二套筒的外侧的径向位置的点观察第二毛细管密封件中的间隙中的润滑剂。
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公开(公告)号：US20140082929A1
公开(公告)日：2014-03-27
申请号：US14035769
申请日：2013-09-24
发明人： Mitsuhiro AONO , Kenji NISHIHARA
CPC分类号： G11B33/1446 , G11B5/102 , G11B19/2009 , G11B25/043 , Y10T29/49025
摘要： A rotating device includes a hub on which a magnetic recording disk is to be mounted, and a base that supports the hub in a freely rotatable manner. When at least either one of the base and the hub is referred to as a work-piece, a method for manufacturing the rotating device includes a forming step for forming the work-piece, a blowing step for blowing the formed work-piece with solid grains, a cleaning step for cleaning the work-piece blown by the grains using a cleaning fluid, an assembling step for assembling the rotating device using the cleaned work-piece. The grains have a property of vaporizing in the cleaning step or being soluble with the cleaning fluid therein.
摘要翻译： 旋转装置包括其上将安装有磁记录盘的轮毂，以及以可自由旋转的方式支撑轮毂的基座。 当基座和轮毂中的至少任一个被称为工件时，旋转装置的制造方法包括用于形成工件的成形步骤，用于将成形的工件以固体吹送的吹塑步骤 颗粒，用于使用清洁流体清洁由颗粒吹制的工件的清洁步骤，用于使用清洁的工件组装旋转装置的组装步骤。 颗粒在清洗步骤中具有汽化性质，或与其中的清洗液一起溶解。
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公开(公告)号：US20140056548A1
公开(公告)日：2014-02-27
申请号：US13895512
申请日：2013-05-16
发明人： Mitsuo Kodama , Ryusuke Sugiki
IPC分类号： F16C32/06
CPC分类号： F16C32/064 , F16C17/107 , F16C33/103 , F16C33/745 , F16C2240/94 , F16C2370/12 , G11B19/2009 , H02K7/086
摘要： A rotary device includes a fixed body including a shaft; a rotary body including a sleeve being configured to surround the shaft through lubricant; and first and second taper seals provided in a space between the fixed body and the rotary body in which gas-liquid interfaces of the lubricant exist, respectively, when the rotary device is operated, the first and taper seals being configured such that a lower limit of a filling ratio of the second taper seal corresponds to a predetermined range of the filling ratio of the first taper seal including its lower limit of the filling ratio, and an upper limit of the filling ratio of the second taper seal corresponds to a predetermined filling ratio of the first taper seal that is larger than an upper limit of the predetermined range and lower than an upper limit of the first taper seal.
摘要翻译： 旋转装置包括：固定体，其包括轴; 包括套筒的旋转体构造成通过润滑剂围绕轴; 以及设置在所述固定体和所述旋转体之间的空间中的第一和第二锥形密封件，其中当所述旋转装置被操作时，分别存在所述润滑剂的气液界面，所述第一和第二锥形密封件被配置为使得下限 第二锥形密封件的填充率对应于第一锥形密封件的填充率的预定范围，包括其填充比的下限，并且第二锥形密封件的填充率的上限对应于预定填充物 所述第一锥形密封件的比例大于所述预定范围的上限并且低于所述第一锥形密封件的上限。
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公开(公告)号：US20130279043A1
公开(公告)日：2013-10-24
申请号：US13866641
申请日：2013-04-19
发明人： Mitsuo KODAMA , Taketo NONAKA , Shuji TSURUSAKO
CPC分类号： G11B33/08 , B21D53/10 , F16C17/107 , F16C33/107 , F16C2370/12 , G11B19/2036 , G11B25/043 , H02K5/167 , H02K7/08 , Y10T29/49639
摘要： A rotating device includes a shaft body that includes a lower rod and an upper rod formed with a retainer hole encircling a part of the lower rod and fixing the lower rod, a bearing body including a shaft encircling member that encircles the shaft body, and freely rotatable relative to the shaft body, a radial dynamic pressure generating groove which is provided in either one of the shaft body and the bearing body and which generates dynamic pressure in a radial direction, a thrust dynamic pressure generating groove which is provided in either one of the shaft body and the bearing body and which generates dynamic pressure in a thrust direction, and a lubrication medium present in a gap between the shaft body and the bearing body.
摘要翻译： 旋转装置包括：轴体，其包括下杆和形成有围绕下杆的一部分并固定下杆的保持孔的上杆;轴承体，包括围绕轴体的轴环形构件，并且自由地 可相对于轴体旋转的径向动压产生槽，其设置在轴体和轴承体中的任一个中，并且在径向方向上产生动压;推力动压产生槽，其设置在 轴体和轴承体，并且在推力方向上产生动压，以及存在于轴体和轴承体之间的间隙中的润滑介质。
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公开(公告)号：US20150340057A1
公开(公告)日：2015-11-26
申请号：US14666627
申请日：2015-03-24
发明人： Ryusuke SUGIKI
CPC分类号： G11B19/2009 , F16C17/107 , F16C33/14 , F16C2370/12 , G11B5/4813 , G11B17/038 , G11B25/043 , H02K5/1677 , H02K7/086 , H02K15/14 , H02K15/16 , Y10T29/49014
摘要： A method manufactures a disk drive unit having a stator part that includes a base and a shaft member extending in an axial direction, and a rotor part that is rotatably supported by the stator part and includes a sleeve accommodating at least a part of the shaft member, and a hub fixed to an outer peripheral surface of the sleeve and including a setting surface on which a recording disk is set. The method includes fixing the hub to the outer peripheral surface of the sleeve, cutting the setting surface by a cutting tool that moves in a direction perpendicular to a rotational axis of the rotor part while rotating the rotor part, in a state in which the hub is fixed to the outer peripheral surface of the sleeve, and accommodating the shaft member in the sleeve after the cutting.
摘要翻译： 一种方法制造具有定子部分的盘驱动单元，所述定子部分包括基座和沿轴向方向延伸的轴构件，以及转子部分，其由所述定子部分可旋转地支撑并且包括容纳所述轴构件的至少一部分的套筒 以及固定到套筒的外周面的轮毂，并且包括设置有记录盘的设置面。 该方法包括将轮毂固定到套筒的外周面上，通过在使转子部分旋转的同时沿着与转子部的旋转轴线垂直的方向移动的切削刀具来切割设定面，该轮毂 被固定到套筒的外周表面，并且在切割之后将轴构件容纳在套筒中。
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8.发明授权Disk drive device with structure that can suppress vaporization and diffusion of lubricant 有权具有能够抑制润滑剂的蒸发和扩散的结构的磁盘驱动装置公开(公告)号：US09082448B2
公开(公告)日：2015-07-14
申请号：US14166651
申请日：2014-01-28
发明人： Mitsuo Kodama , Ryusuke Sugiki
CPC分类号： G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B25/043 , G11B33/1473 , H02K7/086
摘要： A disk drive device comprises a chassis, an annular hub having an outer periphery on which a recording disk is to be mounted, and having an inner periphery to which an annular magnet is fastened, a fluid bearing unit that supports the hub in a manner freely rotatable relative to the chassis, an opposing wall formed annularly on the surface of the chassis at the hub side, and facing with at least partially the inner periphery of the hub in the radial direction, a first gap that extends in the axial direction between the inner periphery of the hub and the opposing wall, and a second gap that is continuous from the first gap and extends in the radial direction between the end face of the hub and the chassis.
摘要翻译： 磁盘驱动装置包括底盘，具有外周的环形轮毂，其上安装有记录盘，并且具有固定有环形磁体的内周;流体轴承单元，以自由方式支撑轮毂; 可相对于所述底盘旋转的相对的壁，所述相对壁在所述轮毂侧的所述底盘的表面上环形地形成，并且至少部分地相对于所述轮毂的径向方向的内周面;第一间隙， 轮毂的内周和相对的壁，以及从第一间隙连续并在轮毂的端面和底盘之间沿径向方向延伸的第二间隙。
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9.发明申请公开(公告)号：US20150131181A1
公开(公告)日：2015-05-14
申请号：US14600070
申请日：2015-01-20
发明人： Ryusuke Sugiki
CPC分类号： G11B19/2018 , F16C17/107 , F16C32/0659 , F16C33/103 , F16C33/745 , F16C2370/12 , G11B5/4813 , G11B19/2036 , G11B33/123 , Y10T29/49639
摘要： A first sleeve rotatably extends around a shaft. First and second flanges are fixed to the shaft. A second sleeve extending around the first sleeve is fixed thereto. A first annular member fixed to the second sleeve surrounds the first flange. A second annular member fixed to the second flange surrounds a portion of the second sleeve. A first capillary seal includes a clearance between the first flange and the first annular member. A second capillary seal includes a clearance between the second annular member and the second sleeve. Lubricant is provided in the clearances in the first and second capillary seals. The second annular member and the second sleeve are designed so that the lubricant in the clearance in the second capillary seal can be viewed from a point in a radial position which is outward of the second sleeve as seen in an axial direction.
摘要翻译： 第一套筒围绕轴可旋转地延伸。 第一和第二法兰固定在轴上。 围绕第一套筒延伸的第二套筒固定在其上。 固定到第二套筒的第一环形构件围绕第一凸缘。 固定到第二凸缘的第二环形构件围绕第二套筒的一部分。 第一毛细管密封件包括第一凸缘和第一环形构件之间的间隙。 第二毛细管密封件包括第二环形构件和第二套筒之间的间隙。 润滑剂设置在第一和第二毛细管密封件的间隙中。 第二环形构件和第二套筒被设计成使得可以从在轴向方向看到的第二套筒的外侧的径向位置的点观察第二毛细管密封件中的间隙中的润滑剂。
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10.发明授权Rotating device with reduced thickness and driving unit with improved base strength 有权具有减小厚度的旋转装置和具有改进的基础强度的驱动单元公开(公告)号：US08976487B2
公开(公告)日：2015-03-10
申请号：US14074331
申请日：2013-11-07
发明人： Mitsuo Kodama , Taketo Nonaka , Masafumi Mizuno
CPC分类号： G11B19/2045
摘要： A rotating device comprises: a hub on which a magnetic recording disk is to be mounted; a base configured to rotatably support the hub via a bearing; a shaft configured such that it extends along the rotational axis of the hub; and a chassis arranged such that it faces the magnetic recording disk, and configured to have a Young's modulus that is smaller than that of the base. A base hole is provided to the upper face of the chassis that faces the magnetic recording disk such that it extends along the rotational axis. Furthermore, the base is fitted into the base hole, thereby fixedly mounting the base on the chassis.
摘要翻译： 一种旋转装置包括：一个集线器，磁记录盘将要安装在该集线器上; 基座，其构造成通过轴承可旋转地支撑所述轮毂; 轴构造成使得其沿着轮毂的旋转轴线延伸; 以及布置成使得其面对磁记录盘并且被配置为具有比基底的杨氏模量小的杨氏模量的底架。 基座孔被提供到机架的面向磁记录盘的上表面，使得其沿着旋转轴线延伸。 此外，基座装配到基座孔中，从而将基座固定地安装在底盘上。
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