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1.发明授权公开(公告)号：US09019656B2
公开(公告)日：2015-04-28
申请号：US14196036
申请日：2014-03-04
Inventor： Mitsuo Kodama , Ryusuke Sugiki
CPC classification number: G11B19/2036 , F16C33/745 , H02K7/086
Abstract: A disk drive unit includes a rotor configured to rotate a disk accommodated within a disk accommodating space and set thereon, a fixed body configured to rotatably support the rotor, a fluid dynamic pressure generating part provided between the fixed body and the rotor, and a plurality of ring-shaped members, provided in an overlapping manner along a direction of a rotational axis of the rotor within a space that communicates the disk accommodating space and a gas-liquid interface of the lubricant, and covering a gap between the rotor and the fixed body.
Abstract translation: 磁盘驱动单元包括：转子，其被配置为使容纳在盘容纳空间内的盘旋转并设置在其上，固定体，其构造成可旋转地支撑转子;流体动压产生部，设置在固定体和转子之间;多个 环形构件，其在与所述盘容纳空间连通的空间和所述润滑剂的气液界面之间沿着所述转子的旋转轴线的方向以重叠的方式设置，并且覆盖所述转子和所述固定件之间的间隙 身体。
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公开(公告)号：US08711516B2
公开(公告)日：2014-04-29
申请号：US13954889
申请日：2013-07-30
Inventor： Mitsuo Kodama , Masafumi Mizuno , Taketo Nonaka
IPC: G11B19/20
CPC classification number: G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B5/012 , G11B19/2009 , H02K5/1677 , H02K7/08 , H02K7/086
Abstract: A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the shaft in a manner encircling the shaft. A first gap between the sleeve and the shaft includes first and second radial dynamic pressure generating portions. An annular sleeve recess is formed in upper face of the sleeve. The ring member includes a ring entering portion that enters the sleeve recess in a non-contact manner. An outward gap in the radial direction where the ring entering portion and the sleeve recess face with each other in the radial direction includes a second air-liquid interface of a lubricant.
Abstract translation: 旋转装置包括一个环绕轴的套筒，一个支撑该轴的壳体，它形成一个环形的支撑凹槽，其中套筒的下端与轴一起进入;一个环形构件，设置在套筒的上方并固定 以围绕轴的方式连接到轴上。 套筒和轴之间的第一间隙包括第一和第二径向动压产生部分。 在套筒的上表面形成环形套筒凹部。 环形构件包括以非接触方式进入套筒凹部的环进入部分。 环形进入部分和套筒凹部在径向上彼此面对的径向方向上的向外的间隙包括润滑剂的第二空气 - 液体界面。
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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
Inventor： Mitsuo Kodama , Ryusuke Sugiki , Akira Aoi
CPC classification number: G11B19/2018 , F16C17/107 , F16C33/745 , F16C35/02 , F16C2370/12 , G11B5/40 , G11B5/5582 , H02K5/16 , Y10T29/49025 , Y10T29/49027 , Y10T29/49032 , Y10T29/53165
Abstract: 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.
Abstract translation: 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
Inventor： Mitsuo Kodama , Taketo Nonaka , Shuji Tsurusako
IPC: G11B19/20
CPC classification number: G11B33/08 , B21D53/10 , F16C17/107 , F16C33/107 , F16C2370/12 , G11B19/2036 , G11B25/043 , H02K5/167 , H02K7/08 , Y10T29/49639
Abstract: 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.
Abstract translation: 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：US20140056548A1
公开(公告)日：2014-02-27
申请号：US13895512
申请日：2013-05-16
Inventor： Mitsuo Kodama , Ryusuke Sugiki
IPC: F16C32/06
CPC classification number: F16C32/064 , F16C17/107 , F16C33/103 , F16C33/745 , F16C2240/94 , F16C2370/12 , G11B19/2009 , H02K7/086
Abstract: 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.
Abstract translation: 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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Patent Agency Ranking
6.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
Inventor： Mitsuo Kodama , Ryusuke Sugiki
CPC classification number: G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B25/043 , G11B33/1473 , H02K7/086
Abstract: 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.
Abstract translation: 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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7.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
Inventor： Mitsuo Kodama , Taketo Nonaka , Masafumi Mizuno
CPC classification number: G11B19/2045
Abstract: 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.
Abstract translation: 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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公开(公告)号：US08780494B1
公开(公告)日：2014-07-15
申请号：US14202902
申请日：2014-03-10
Inventor： Mitsuo Kodama , Masafumi Mizuno , Taketo Nonaka
IPC: G11B19/20
CPC classification number: G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B5/012 , G11B19/2009 , H02K5/1677 , H02K7/08 , H02K7/086
Abstract: A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the shaft in a manner encircling the shaft. A first gap between the sleeve and the shaft includes first and second radial dynamic pressure generating portions. An annular sleeve recess is formed in upper face of the sleeve. The ring member includes a ring entering portion that enters the sleeve recess in a non-contact manner. An outward gap in the radial direction where the ring entering portion and the sleeve recess face with each other in the radial direction includes a second air-liquid interface of a lubricant.
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9.发明授权公开(公告)号：US09064531B2
公开(公告)日：2015-06-23
申请号：US14557826
申请日：2014-12-02
Inventor： Mitsuo Kodama , Ryusuke Sugiki , Akira Aoi
CPC classification number: G11B19/2018 , F16C17/107 , F16C33/745 , F16C35/02 , F16C2370/12 , G11B5/40 , G11B5/5582 , H02K5/16 , Y10T29/49025 , Y10T29/49027 , Y10T29/49032 , Y10T29/53165
Abstract: A rotating apparatus includes a hub, a shaft housing portion having a center through-hole, a base plate, and a shaft with a cylindrical section housed in the through-hole. At a joint between the shaft housing portion and the hub is formed a bonding region for bonding the shaft housing portion and the hub by a hardening resin, and a narrow-gap region more toward the base plate than the bonding region. A gap between the shaft housing portion and the hub in the narrow-gap region is narrower than a gap between the shaft housing portion and the hub in the bonding region. The hub includes a fourth circumferential recessed portion recessed in the axial direction and a lower circumferential raised portion projecting in the axial direction on a radially inner side of the fourth circumferential recessed portion. The narrow-gap region is located inside the lower circumferential raised portion.
Abstract translation: 旋转装置包括轮毂，具有中心通孔的轴容纳部分，基板和具有容纳在通孔中的圆柱形部分的轴。 在轴壳部和轮毂之间的接合处形成有用于通过硬化树脂将轴容纳部和轮毂接合的接合区域，以及比接合区域更靠近底板的窄间隙区域。 狭缝间隙区域的轴收纳部与轮毂之间的间隙比接合区域的轴收纳部与轮毂之间的间隙窄。 毂包括沿轴向凹陷的第四周向凹部和在第四圆周凹部的径向内侧沿轴向突出的下周向凸起部。 窄间隙区域位于下周向隆起部分的内部。
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10.发明申请ROTATING APPARATUS CAPABLE OF IMPROVING THE SHOCK RESISTANCE AND METHOD FOR MANUFACTURING THE ROTATING APPARATUS 审中-公开可改善耐冲击性的旋转装置和制造旋转装置的方法公开(公告)号：US20150085399A1
公开(公告)日：2015-03-26
申请号：US14557826
申请日：2014-12-02
Inventor： Mitsuo Kodama , Ryusuke Sugiki , Akira Aoi
CPC classification number: G11B19/2018 , F16C17/107 , F16C33/745 , F16C35/02 , F16C2370/12 , G11B5/40 , G11B5/5582 , H02K5/16 , Y10T29/49025 , Y10T29/49027 , Y10T29/49032 , Y10T29/53165
Abstract: A rotating apparatus includes a hub, a shaft housing portion having a center through-hole, a base plate, and a shaft with a cylindrical section housed in the through-hole. At a joint between the shaft housing portion and the hub is formed a bonding region for bonding the shaft housing portion and the hub by a hardening resin, and a narrow-gap region more toward the base plate than the bonding region. A gap between the shaft housing portion and the hub in the narrow-gap region is narrower than a gap between the shaft housing portion and the hub in the bonding region. The hub includes a fourth circumferential recessed portion recessed in the axial direction and a lower circumferential raised portion projecting in the axial direction on a radially inner side of the fourth circumferential recessed portion. The narrow-gap region is located inside the lower circumferential raised portion.
Abstract translation: 旋转装置包括轮毂，具有中心通孔的轴容纳部分，基板和具有容纳在通孔中的圆柱形部分的轴。 在轴壳部和轮毂之间的接合处形成有用于通过硬化树脂将轴容纳部和轮毂接合的接合区域，以及比接合区域更靠近底板的窄间隙区域。 狭缝间隙区域的轴收纳部与轮毂之间的间隙比接合区域的轴收纳部与轮毂之间的间隙窄。 毂包括沿轴向凹陷的第四周向凹部和在第四圆周凹部的径向内侧沿轴向突出的下周向凸起部。 窄间隙区域位于下周向隆起部分的内部。
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