公开(公告)号：US20110109991A1

公开(公告)日：2011-05-12

申请号：US12889253

申请日：2010-09-23

申请人： Yuji NISHITANI

发明人： Yuji NISHITANI

IPC分类号： G11B17/02 ,  H05K13/00

CPC分类号： G11B33/08 ,  G11B25/043 ,  Y10T29/49002

摘要： A disk drive device includes: a hub on which a recording disk is to be mounted; a base member; a bearing unit configured to support the hub in a manner in which the hub can be relatively rotated with respect to the base member; an extended annular groove portion provided in part of the hub around the rotational axis of the hub; and a weight member that is installed in the extended annular groove portion to adjust a rotational balance when the recording disk is being rotated with the hub. The weight member has a fixing mechanism that is slidable, when installed, in the direction of the extended annular groove portion and that can substantially maintain a stopped state at a fixing position.

摘要翻译： 磁盘驱动器装置包括：记录盘安装在其上的集线器; 基地会员 轴承单元，其构造成以轮毂相对于基座相对旋转的方式支撑轮毂; 围绕轮毂的旋转轴线设置在毂的一部分的延伸的环形槽部分; 以及配重构件，其安装在延伸的环形槽部分中，以当记录盘与轮毂一起旋转时调节旋转平衡。 配重构件具有固定机构，当安装时，该固定机构能够沿着延伸的环形槽部的方向滑动，并且能够在固定位置上基本保持停止状态。

公开(公告)号：US20100302673A1

公开(公告)日：2010-12-02

申请号：US12769559

申请日：2010-04-28

申请人： Yuji NISHITANI

发明人： Yuji NISHITANI

IPC分类号： G11B17/00

CPC分类号： G11B19/2036

摘要： A disk drive device includes a bearing unit and a drive unit. The bearing unit includes: a shaft; a sleeve configured to allow relative rotation, with the shaft as the axis; a flange projected in the radial direction of the shaft and configured to rotate integrally with the shaft; a flange housing space portion provided continuously from the sleeve and configured to rotatably house the flange; a counter plate structured with both a first surface, which faces the end surface in the axial direction of the flange and seals the flange housing space portion, and a second surface that is opposite to the first surface. The projected dimension of the flange is designed to be larger than the wall thickness of the flange surrounding wall portion in the radial direction of the flange, the flange surrounding wall portion defining the flange housing space portion.

摘要翻译： 磁盘驱动装置包括轴承单元和驱动单元。 轴承单元包括：轴; 套筒，其构造成允许相对旋转，以轴为轴; 沿所述轴的径向方向突出并且构造成与所述轴一体地旋转的凸缘; 凸缘容纳空间部分，其从所述套筒连续地设置并且构造成可旋转地容纳所述凸缘; 对置板，其构造为具有面向凸缘的轴向端面的第一表面并密封凸缘容纳空间部分的第二表面和与第一表面相对的第二表面。 凸缘的突出尺寸被设计成大于凸缘的径向方向上围绕壁部的凸缘的壁厚，凸缘围壁部分限定凸缘容纳空间部分。