公开(公告)号：US07701664B2

公开(公告)日：2010-04-20

申请号：US11286235

申请日：2005-11-23

申请人： Atsushi Katsuta ,  Josei Shimizu

发明人： Atsushi Katsuta ,  Josei Shimizu

IPC分类号： G11B25/04 ,  H02K7/08

CPC分类号： G11B33/121 ,  G11B17/02 ,  G11B17/038 ,  G11B33/08

摘要： A magnetic disk drive has a problem in that when a shock in excess of a force used to fasten a spindle shaft to a cover is applied, the spindle shaft becomes inclined. Embodiments of the invention overcome this problem. In one embodiment, a cover is formed with a recessed portion at a location opposite to a spindle shaft. The recessed portion is formed with a projection having an end to be in contact with an inclined portion of a tapped hole of the spindle shaft. Thus, a “plug-like” structure is formed. Preferably, a gap between the cover and the spindle shaft is not present. With this structure, even if the shock is applied from outside, the projection of the cover acts as a stopper to suppress a displacement between the spindle shaft and the cover, thus preventing inclination of the spindle shaft.

摘要翻译： 磁盘驱动器存在的问题在于，当施加超过用于将主轴固定到盖上的力的冲击时，主轴变得倾斜。 本发明的实施例克服了这个问题。 在一个实施例中，在与主轴相对的位置处形成具有凹部的盖。 凹部形成有具有与主轴的螺纹孔的倾斜部分接触的端部的突起。 因此，形成“塞状”结构。 优选地，盖和主轴之间的间隙不存在。 利用这种结构，即使从外部施加冲击，盖的突起用作止动器，以抑制主轴和盖之间的位移，从而防止主轴的倾斜。

公开(公告)号：US20060132965A1

公开(公告)日：2006-06-22

申请号：US11286235

申请日：2005-11-23

申请人： Atsushi Katsuta ,  Josei Shimizu

发明人： Atsushi Katsuta ,  Josei Shimizu

IPC分类号： G11B17/00

CPC分类号： G11B33/121 ,  G11B17/02 ,  G11B17/038 ,  G11B33/08

摘要： A magnetic disk drive has a problem in that when a shock in excess of a force used to fasten a spindle shaft to a cover is applied, the spindle shaft becomes inclined. Embodiments of the invention overcome this problem. In one embodiment, a cover is formed with a recessed portion at a location opposite to a spindle shaft. The recessed portion is formed with a projection having an end to be in contact with an inclined portion of a tapped hole of the spindle shaft. Thus, a “plug-like” structure is formed. Preferably, a gap between the cover and the spindle shaft is not present. With this structure, even if the shock is applied from outside, the projection of the cover acts as a stopper to suppress a displacement between the spindle shaft and the cover, thus preventing inclination of the spindle shaft.

摘要翻译： 磁盘驱动器存在的问题在于，当施加超过用于将主轴固定到盖上的力的冲击时，主轴变得倾斜。 本发明的实施例克服了这个问题。 在一个实施例中，在与主轴相对的位置处形成具有凹部的盖。 凹部形成有具有与主轴的螺纹孔的倾斜部分接触的端部的突起。 因此，形成“塞状”结构。 优选地，盖和主轴之间的间隙不存在。 利用这种结构，即使从外部施加冲击，盖的突起用作止动器，以抑制主轴和盖之间的位移，从而防止主轴的倾斜。