公开(公告)号：US20130216166A1

公开(公告)日：2013-08-22

申请号：US13400912

申请日：2012-02-21

Applicant: Mitsuo KODAMA ,  Taketo Nonaka

Inventor： Mitsuo KODAMA ,  Taketo Nonaka

IPC: F16C32/06

CPC classification number: F16C33/745 ,  F16C17/107 ,  F16C33/103 ,  F16C2370/12 ,  G11B19/2009

Abstract: The rotating device includes a fixing body having a shaft and a shaft holder fixing the shaft, a rotating body having a shaft encircling member with a cylinder part encircling a shaft and a disk part, and a middle encircling member encircling the cylinder part and facing the disk part via a clearance in the direction of a rotational axis, a radial dynamic pressure generating groove disposed in either one of a surface of the cylinder part and a surface of the shaft facing with each other in the radial direction, a thrust dynamic pressure generating groove disposed in either one of a surface of the disk part and a surface of the shaft holder facing with each other in the rotational axis direction, and a lubricant continuously present from a first air-liquid interface to a second air-liquid interface between the rotating body and the fixing body.

Abstract translation: 旋转装置包括具有轴的固定体和固定轴的轴保持架，具有轴环绕构件的旋转体，具有环绕轴的圆筒部和盘部，以及围绕圆筒部并且面向所述圆筒部的中间环绕构件 通过沿旋转轴线的方向通过间隙的圆盘部分，设置在所述圆筒部分的表面和所述轴的在径向方向上相对的表面中的任一个中的径向动压产生槽，产生推力动压力 凹槽，其布置在所述盘部分的表面中的任一个表面和所述轴保持器在旋转轴线方向上彼此面对的表面;以及润滑剂，其从所述第一空气 - 液体界面连续地存在于所述第二空气 - 液体界面之间， 旋转体和固定体。

公开(公告)号：US20120288225A1

公开(公告)日：2012-11-15

申请号：US13465467

申请日：2012-05-07

Applicant: Mitsuo KODAMA

Inventor： Mitsuo KODAMA

IPC: F16C33/10

CPC classification number: F16C35/02 ,  F16C33/103 ,  F16C2370/12 ,  G11B19/2009

Abstract: A rotating device suitable for weight saving or thinning while maintaining a shock resistance is provided. The rotating device includes a rotating body having a hub on which a recording disk is to be mounted, and a shaft, and a fixing body including a sleeve, a housing, and a base. A lubricant is present between the rotating body and the fixing body. The sleeve is formed of a sintered metal. The housing has an encircling wall, the flange and the bottom which are integrally formed together by pressing.

Abstract translation: 提供适于减轻或减薄同时保持抗冲击性的旋转装置。 旋转装置包括旋转体，其具有要在其上安装记录盘的轮毂，以及轴，以及包括套筒，壳体和基座的固定体。 在旋转体和固定体之间存在润滑剂。 套筒由烧结金属制成。 壳体具有环绕的壁，凸缘和底部通过压制一体地形成在一起。

公开(公告)号：US20120262822A1

公开(公告)日：2012-10-18

申请号：US13530344

申请日：2012-06-22

Applicant: Takuji YAMADA ,  Yuji OMURA ,  Mitsuo KODAMA

Inventor： Takuji YAMADA ,  Yuji OMURA ,  Mitsuo KODAMA

IPC: G11B19/20

CPC classification number: G11B33/02 ,  F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1675

Abstract: A sleeve supports a shaft. A housing member is arranged so as to surround the sleeve and make the end of the sleeve protrude. A base member holds the housing member and fixes a stator core so as to surround the housing member. A hub drives a recording disk by being rotated integrally with the shaft, with a magnet being fixed to an annular portion concentric with the shaft so as to face the stator core fixed to the base member. A thrust member is rotated integrally with the hub, and a descender portion and a ring portion.

Abstract translation: 套筒支撑轴。 壳体构件被布置成围绕套筒并使套筒的端部突出。 基座构件保持壳体构件并固定定子芯以围绕壳体构件。 轮毂通过与轴一体地旋转而驱动记录盘，其中磁体被固定到与轴同心的环形部分，以面对固定到基座构件的定子芯。 推力构件与毂一体旋转，下降部分和环部分。

公开(公告)号：US20120090163A1

公开(公告)日：2012-04-19

申请号：US13269482

申请日：2011-10-07

Applicant: Mitsuo KODAMA ,  Ryusuke SUGIKI ,  Akira AOI

Inventor： Mitsuo KODAMA ,  Ryusuke SUGIKI ,  Akira AOI

IPC: G11B5/127 ,  F16C32/06

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 disk drive device includes a hub, a base plate, and a bearing unit. The bearing unit includes a shaft housing member, joined to the hub, having a through-hole in the center, a shaft having a smaller diameter section and a larger diameter section, a radial dynamic pressure grooves, and a lubricant agent. The opening shape of bearing hole of the base plate is so formed as to be larger than the outer shape of the larger diameter section. In the bearing unit, the larger diameter section of the bearing unit is fixed by a hardening resin present between the bearing unit and the bearing hole.

Abstract translation: 盘驱动装置包括轮毂，基板和轴承单元。 轴承单元包括：轴壳体构件，其连接到轮毂，在中心具有通孔，具有较小直径部分和较大直径部分的轴，径向动压力槽和润滑剂。 基板的轴承孔的开口形状形成为大于大直​​径部的外形。 在轴承单元中，轴承单元的较大直径部分通过存在于轴承单元和轴承孔之间的硬化树脂固定。