公开(公告)号：US4812932A

公开(公告)日：1989-03-14

申请号：US70935

申请日：1987-07-08

申请人： Toshio Hishinuma ,  Atsushi Katsuta ,  Takeharu Tajima

发明人： Toshio Hishinuma ,  Atsushi Katsuta ,  Takeharu Tajima

IPC分类号： G11B25/04 ,  G11B33/08 ,  G11B5/012 ,  G11B23/02

CPC分类号： G11B33/08

摘要： Disclosed is a file memory unit having a casing for accommodating a head positioning mechanism and a magnetic recording disk virtually in sealed manner, and a frame for supporting the casing resiliently. The unit has the provision of a shock absorbing facility for absorbing the vibration created by the head positioning mechanism and the vibration and impact applied from the outside. The shock absorbing facility has a unitary structure having a first spring constant for absorbing relatively small vibration created by the casing, a second spring constant for absorbing the vibration applied from the outside, and a third spring constant for absorbing the impact applied from the outside.

摘要翻译： 公开了一种文件存储单元，其具有用于容纳头部定位机构和实际上密封的磁记录盘的壳体，以及用于弹性地支撑壳体的框架。 该装置具有用于吸收由头部定位机构产生的振动以及从外部施加的振动和冲击的减震装置。 冲击吸收设备具有一体结构，其具有用于吸收由壳体产生的相对小的振动的第一弹簧常数，用于吸收从外部施加的振动的第二弹簧常数和用于吸收从外部施加的冲击的第三弹簧常数。

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。

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：US07697238B2

公开(公告)日：2010-04-13

申请号：US11479321

申请日：2006-06-30

申请人： Ohno Makoto ,  Shin Nagahiro ,  Atsushi Katsuta ,  Gentarou Nakamura

发明人： Ohno Makoto ,  Shin Nagahiro ,  Atsushi Katsuta ,  Gentarou Nakamura

IPC分类号： G11B5/54

CPC分类号： G11B5/54

摘要： In one embodiment, a disk drive has a solenoid and spring for turning a ramp mechanism about a rotating shaft. When the drive operates, since the ramp mechanism moves out from the magnetic disk by the force of the solenoid, the outer peripheral edge of a magnetic head that has formerly been unusable can be used as a data read/write region, without the magnetic head interfering with the fins of the ramp mechanism. During a non-operating state of the drive and in case of a power interruption, the force of the spring returns the ramp mechanism to a position at which the magnetic head can be unloaded. This construction allows the storage capacity of the drive to be easily increased without sacrificing the shock resistance of the ramp mechanism.

摘要翻译： 在一个实施例中，盘驱动器具有螺线管和弹簧，用于围绕旋转轴转动斜坡机构。 当驱动器操作时，由于斜面机构由螺线管的力而从磁盘移出，所以先前不可用的磁头的外周边缘可以用作数据读/写区域，而不用磁头 干扰斜坡机构的翅片。 在驱动器的非操作状态下，并且在断电的情况下，弹簧的力将斜面机构返回到可以卸载磁头的位置。 这种结构允许容易地增加驱动器的存储容量，而不牺牲斜坡机构的抗冲击性。

公开(公告)号：US20070008653A1

公开(公告)日：2007-01-11

申请号：US11479321

申请日：2006-06-30

申请人： Makoto Ohno ,  Shin Nagahiro ,  Atsushi Katsuta ,  Gentarou Nakamura

发明人： Makoto Ohno ,  Shin Nagahiro ,  Atsushi Katsuta ,  Gentarou Nakamura

IPC分类号： G11B5/54

CPC分类号： G11B5/54

摘要： The conventional ramp mechanism constituting a load/unload mechanism for a magnetic disk is disadvantageous for increasing a storage capacity since an outer peripheral edge of the disk is not used as a data area. In one embodiment of the invention, a disk drive has a solenoid and spring for turning a ramp mechanism about a rotating shaft. When the drive operates, since the ramp mechanism moves out from the magnetic disk by the tensile force of the solenoid, the outer peripheral edge of a magnetic head that has formerly been unusable can be used as a data read/write region, without the magnetic head interfering with the fins of the ramp mechanism. During a non-operating state of the drive and in case of a power interruption, the tensile force of the spring returns the ramp mechanism to a position at which the magnetic head can be unloaded. This construction allows the storage capacity of the drive to be easily increased without sacrificing the shock resistance of the ramp mechanism.

摘要翻译： 构成用于磁盘的加载/卸载机构的常规斜坡机构不利于增加存储容量，因为盘的外围边缘不用作数据区域。 在本发明的一个实施例中，盘驱动器具有螺线管和弹簧，用于围绕旋转轴转动斜坡机构。 当驱动器操作时，由于斜坡机构由螺线管的拉力从磁盘移出，所以先前不可用的磁头的外周边缘可以用作数据读/写区域，而不用磁 头部干涉斜坡机构的翅片。 在驱动器的非操作状态下，并且在断电的情况下，弹簧的张力将斜坡机构返回到可以卸载磁头的位置。 这种结构允许容易地增加驱动器的存储容量，而不牺牲斜坡机构的抗冲击性。