公开(公告)号：US06527449B1

公开(公告)日：2003-03-04

申请号：US09707334

申请日：2000-11-07

申请人： Toshisada Koyama ,  Yasuhiro Mouri

发明人： Toshisada Koyama ,  Yasuhiro Mouri

IPC分类号： F16C2700

CPC分类号： F16C19/54 ,  F16C11/04 ,  F16C27/04 ,  F16C35/061 ,  F16C35/077 ,  F16C2370/12

摘要： A pivot bearing of the present invention comprises inner rings, outer rings surrounding the inner rings and rollable balls arranged between the inner and outer rings. This pivot bearing does not have a sleeve which is provided on the outer rings of a conventional pivot bearing. Each of the outer rings is made thicker substantially by the thickness of the sleeve of the conventional pivot bearing than the outer rings of the conventional pivot. The other components of the pivot bearing according to the present invention than the outer bearings use commercially available components or standardized components manufactured in the ordinary manufacturing line at ball bearing manufacturers' factories. Thus, a simple, inexpensive and precise pivot bearing can be manufactured.

摘要翻译： 本发明的枢转轴承包括内圈，围绕内圈的外圈和布置在内圈和外圈之间的可滚动球。 该枢转轴承不具有设置在常规枢转轴承的外圈上的套筒。 每个外环基本上比常规枢转轴承的套筒的厚度比常规枢轴的外圈更厚。 根据本发明的枢转轴承的其它部件比外部轴承使用在球轴承制造商的工厂中在普通生产线中制造的市售部件或标准件。 因此，可以制造简单，便宜和精确的枢轴轴承。

公开(公告)号：US20050146810A1

公开(公告)日：2005-07-07

申请号：US11073843

申请日：2005-03-08

申请人： Yasuhiro Mouri ,  Toshisada Koyama

发明人： Yasuhiro Mouri ,  Toshisada Koyama

IPC分类号： F16C19/54 ,  F16C33/58 ,  F16C35/06 ,  F16C35/077 ,  G11B5/48 ,  G11B19/20 ,  G11B5/55

CPC分类号： F16C19/54 ,  F16C11/04 ,  F16C35/067 ,  F16C2370/12 ,  G11B5/4813

摘要： There is provided a pivot assembly for a magnetic disk storage which is improved in its rotating accuracy and reduced in manufacturing cost. A pivot assembly includes a pair of ball bearings each having an outer ring, and the outer ring is fitted directly into an axial bore of an actuator block. This arrangement requires no sleeve to be interposed between the pair of ball bearings and the actuator block, thus enabling to reduce its manufacturing cost. No need to interpose any sleeve allows to increase the thickness of the outer ring of the ball bearing and thus the rigidity thereof, thereby improving the rotating accuracy of the pivot assembly.

摘要翻译： 提供了一种用于磁盘存储的枢轴组件，其提高其旋转精度并降低制造成本。 枢轴组件包括一对球轴承，每个球轴承具有外圈，并且外圈直接配合到致动器块的轴向孔中。 这种布置不需要在一对球轴承和致动器块之间插入套筒，从而能够降低其制造成本。 不需要插入任何套筒允许增加球轴承的外圈的厚度并因此增加其刚度，从而提高枢轴组件的旋转精度。

公开(公告)号：US07056030B2

公开(公告)日：2006-06-06

申请号：US10228183

申请日：2002-08-27

申请人： Toshisada Koyama ,  Yasuhiro Mouri

发明人： Toshisada Koyama ,  Yasuhiro Mouri

IPC分类号： F16C19/10

CPC分类号： F16C19/08 ,  F16C2370/12 ,  G11B5/4813 ,  G11B5/5521

摘要： A pivot bearing includes a stepped shaft having an enlarged diameter shaft portion and a reduced diameter shaft portion; a plurality of balls of a lower row are interposed between the enlarged diameter shaft portion and a sleeve outer ring surrounding the enlarged diameter shaft portion; a ball bearing including inner and outer rings and a plurality of balls interposed therebetween is provided around the reduced diameter shaft portion so that the inner ring is secured around the reduced diameter shaft portion while applying an appropriate pre-load on the upper end surface of the inner ring, and the outer ring is urged to contact the lower surface thereof intimately onto the upper surface of the sleeve outer ring. The pivot bearing has a reduced number of parts, is facilitated in incorporation into a swing arm, and is expected to be manufactured at a reduced cost.

摘要翻译： 枢转轴承包括具有扩大直径轴部分和直径减小的轴部分的阶梯轴; 多个下列的滚珠插入在扩大直径轴部分和围绕扩大直径轴部分的套筒外圈之间; 包括内圈和外圈以及插入其间的多个滚珠的滚珠轴承围绕减径轴部分设置，使得内环被固定在减径轴部分周围，同时在其上端表面上施加适当的预载荷 内环，并且外环被迫使其下表面紧密地接触到套筒外圈的上表面上。 枢轴轴承具有减少的部件数量，便于结合到摆臂中，并且预期以较低成本制造。

公开(公告)号：US6010247A

公开(公告)日：2000-01-04

申请号：US998868

申请日：1997-12-29

申请人： Yasuhiro Mouri ,  Shinichi Mori

发明人： Yasuhiro Mouri ,  Shinichi Mori

IPC分类号： F16C25/08 ,  F16C19/06 ,  F16C19/08 ,  F16C19/52 ,  F16C19/54 ,  G11B5/48 ,  F16C33/60

CPC分类号： F16C19/52 ,  F16C19/06 ,  F16C19/54 ,  F16C35/07 ,  G11B5/4813 ,  F16C11/04

摘要： A bearing device is used as a bearing for a pivot of a head stack assembly to thereby make a hard disc drive thin. Widths of first and second inner races 12a and 13a are set to be smaller than the widths of first and second outer races 12b and 13b. Even if first and second bearings 12 and 13 (outer races 12b and 13b) are mounted on a shaft 9 in contact with each other, a space S is formed between the first and second inner races 12a and 13a. From this structure, in the case where a pre-pressure is applied to the second inner race 13a, it is possible to adjust the pre-pressure in a wide range. In the prior art, it has been necessary to provide an annular projection or a spacer for keeping a space for application of the pre-pressure. However, the present invention makes possible to dispense with the annular projection or the spacer. Corresponding to this, the width of the bearing device 10 is shortened. Finally, the thickness of the pivot portion of the swing arm is decreased to thereby make the hard disc drive thin.

摘要翻译： 轴承装置用作头部组件组件的枢轴的轴承，从而使硬盘驱动器变薄。 第一和第二内圈12a和13a的宽度被设定为小于第一和第二外圈12b和13b的宽度。 即使第一和第二轴承12和13（外圈12b和13b）安装在彼此接触的轴9上，在第一和第二内圈12a和13a之间形成空间S. 根据该结构，在向第二内座圈13a施加预压的情况下，可以在宽范围内调节预压力。 在现有技术中，必须提供用于保持用于施加预压力的空间的环形突起或间隔件。 然而，本发明使得可以省略环形突起或间隔件。 与此相对应，轴承装置10的宽度缩短。 最后，摆臂的枢转部分的厚度减小，从而使硬盘驱动器变薄。