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1. 发明授权

US08876388B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08876388B2
公开(公告)日：2014-11-04
申请号：US13481282
申请日：2012-05-25
申请人： Hiroshi Niwa , Isao Komori
发明人： Hiroshi Niwa , Isao Komori
IPC分类号： F16C33/02 , H02K7/08 , F16C17/02 , F16C33/14
CPC分类号： H02K7/085 , F16C17/02 , F16C17/102 , F16C17/107 , F16C33/14 , F16C2220/82 , F16C2223/12 , F16C2223/14 , F16C2223/70 , F16C2226/14 , F16C2370/12
摘要： A fluid dynamic bearing device which exhibits high bearing performance at low cost has a highly accurate bearing gap. At least a region in the outer circumferential surface of a shaft, which faces the radial bearing gap, is constituted of an electroformed part, and the region of the shaft excluding the electroformed part is constituted of a resin portion.
摘要翻译：以低成本呈现高轴承性能的流体动力轴承装置具有高精度的轴承间隙。至少在轴的外周面中面向径向轴承间隙的区域由电铸部构成，除电铸部以外的轴的区域由树脂部构成。

2. 发明申请

US20130272634A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20130272634A1
公开(公告)日：2013-10-17
申请号：US13976816
申请日：2012-01-06
申请人： Hiromichi Kokumai , Kazuyoshi Harada , Isao Komori
发明人： Hiromichi Kokumai , Kazuyoshi Harada , Isao Komori
IPC分类号： F16C32/06
CPC分类号： F16C32/06 , F16C17/026 , F16C33/107 , F16C2370/12
摘要： A fluid dynamic bearing device (1), comprising a dynamic pressure generating groove region (B) being provided on an inner peripheral surface (3a) of a bearing member (3), which forms a radial bearing gap, the region (B) comprising: a first region (B1) for generating a fluid dynamic pressure when the bearing member (3) and a shaft member (2) are rotated relative to each other in a forward direction; and a second region (B2) for generating a fluid dynamic pressure when the bearing member (3) and the shaft member (2) are rotated relative to each other in a reverse direction. A portion of the region (B), corresponds to an end portion on an open-to-air side of the radial bearing gap, comprises an annular projecting portion (6) provided closer to the shaft member (2) with respect to a groove bottom of each of the plurality of dynamic pressure generating grooves (4).
摘要翻译：一种流体动力轴承装置（1），包括形成径向轴承间隙的轴承构件（3）的内周面（3a）上的动压产生槽区域（B），所述区域（B）包括：当所述轴承构件（3）和轴构件（2）沿向前方向相对于彼此旋转时产生流体动压的第一区域（B1）以及用于当轴承构件（3）和轴构件（2）相对于彼此相反地旋转时产生流体动压的第二区域（B2）。所述区域（B）的一部分对应于所述径向轴承间隙的空对空侧的端部，包括相对于所述轴构件（2）更靠近所述轴构件（2）设置的环形突出部分（6）所述多个动压产生槽（4）中的每一个的底部。

3. 发明授权

US08454239B2 Fluid dynamic bearing device and assembling method thereof 有权
标题翻译：流体动力轴承装置及其组装方法
公开(公告)号：US08454239B2
公开(公告)日：2013-06-04
申请号：US12665384
申请日：2008-07-18
申请人： Kimihiko Bitou , Isao Komori , Tetsuya Kurimura
发明人： Kimihiko Bitou , Isao Komori , Tetsuya Kurimura
IPC分类号： F16C32/06
CPC分类号： F16C17/08 , F16C17/026 , F16C33/745 , F16C43/02 , F16C2370/12 , Y10T29/49639
摘要： A first axial gap (L1) is formed between a seal portion (9) and a sleeve portion (8). With this, it is possible to set a moving amount of a shaft member (2) in an axial direction with high accuracy irrespective of accuracy of members such as the sleeve portion (8).
摘要翻译：第一轴向间隙（L1）形成在密封部分（9）和套筒部分（8）之间。由此，与轴套（8）等构件的精度无关地，能够高精度地设定轴构件（2）的轴向移动量。

4. 发明申请

US20120237148A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20120237148A1
公开(公告)日：2012-09-20
申请号：US13481282
申请日：2012-05-25
申请人： Hiroshi Niwa , Isao Komori
发明人： Hiroshi Niwa , Isao Komori
IPC分类号： F16C32/06
CPC分类号： H02K7/085 , F16C17/02 , F16C17/102 , F16C17/107 , F16C33/14 , F16C2220/82 , F16C2223/12 , F16C2223/14 , F16C2223/70 , F16C2226/14 , F16C2370/12
摘要： A fluid dynamic bearing device which exhibits high bearing performance at low cost has a highly accurate bearing gap. At least a region in the outer circumferential surface of a shaft, which faces the radial bearing gap, is constituted of an electroformed part, and the region of the shaft excluding the electroformed part is constituted of a resin portion.
摘要翻译：以低成本呈现高轴承性能的流体动力轴承装置具有高精度的轴承间隙。至少在轴的外周面中面向径向轴承间隙的区域由电铸部构成，除电铸部以外的轴的区域由树脂部构成。

5. 发明申请

US20120186983A1 FLUID DYNAMIC BEARING DEVICE 审中-公开
标题翻译：流体动力轴承装置
公开(公告)号：US20120186983A1
公开(公告)日：2012-07-26
申请号：US13435915
申请日：2012-03-30
申请人： Natsuhiko MORI , Nobuyoshi YAMASHITA , Fuminori SATOJI , Isao KOMORI , Toshiyuki MIZUTANI , Masafumi OKUMA , Kenichi MITANI
发明人： Natsuhiko MORI , Nobuyoshi YAMASHITA , Fuminori SATOJI , Isao KOMORI , Toshiyuki MIZUTANI , Masafumi OKUMA , Kenichi MITANI
IPC分类号： C25D1/02
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C2370/12 , Y10T29/49025 , Y10T29/49705
摘要： It is an object of the present invention to provide a bearing member having a highly accurate dynamic pressure generating portion stably at low cost. Dynamic pressure grooves (8a1) and (8a2) are formed as the dynamic pressure generating portions on an inner circumferential surface of the electroforming portion (10) by an electroforming process, and injection molding is performed by using a resin while inserting the electroforming portion (10), thereby forming a bearing member (8). A shaft member (2) is inserted into an inner circumference of the bearing member.
摘要翻译：本发明的目的是提供一种以低成本稳定地具有高精度的动压产生部的轴承部件。在电铸部（10）的内周面通过电铸工序形成作为动压产生部的动压槽8a1和8a2，并且在插入电铸部的同时通过使用树脂进行注塑成型（ 10），从而形成轴承部件（8）。轴构件（2）插入到轴承构件的内周中。

6. 发明授权

US08113715B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08113715B2
公开(公告)日：2012-02-14
申请号：US12294485
申请日：2007-02-02
申请人： Kenji Ito , Isao Komori
发明人： Kenji Ito , Isao Komori
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , F16C2370/12
摘要： In this type of fluid dynamic bearing device, a dynamic pressure generating part having high molding accuracy is formed at low cost.A rotating member 2 includes a shaft part 9, and a holding member 10 as a thrust member provided in one end of the shaft part 9. In a partial annular region of a lower end surface 10a1 of a disk part 10a making up the holding member 10, a region where a plurality of dynamic pressure grooves 10a2 and a plurality of sectioning parts 10a3 formed between the plurality of dynamic pressure grooves 10a2 to section the respective dynamic pressure grooves 10a2 are arrayed spirally is formed. The above-described dynamic-pressure-groove 10a2 arrayed region is opposed to an upper end surface 8a of a housing part 8, and forms a thrust bearing clearance of a thrust bearing part T between the dynamic-pressure-groove 10a2 and the upper end surface 8a during the rotation of the shaft part 9. The above-described dynamic-pressure-groove 10a2 arrayed region is molded in the lower end surface 10a1 of the holding member 10 by press working.
摘要翻译：在这种类型的流体动力轴承装置中，以低成本形成具有高成型精度的动压产生部件。旋转构件2包括轴部9和设置在轴部9的一端的推力构件的保持构件10.在构成保持构件的盘部10a的下端面10a1的部分环状区域如图10所示，形成有多个动压槽10a2和形成在多个动压槽10a2之间的多个切断部10a3，以使各个动压槽10a2分段的区域螺旋地排列。上述动压槽10a2排列区域与壳体部8的上端面8a相对，并且在动压槽10a2与上端部之间形成推力轴承部T的推力轴承间隙表面8a在轴部9的旋转期间。上述动压槽10a2排列区域通过冲压加工模制在保持构件10的下端面10a1中。

7. 发明授权

US08104964B2 Fluid dynamic bearing unit 有权
标题翻译：流体动力轴承单元
公开(公告)号：US08104964B2
公开(公告)日：2012-01-31
申请号：US12294331
申请日：2007-03-19
申请人： Masaharu Hori , Masaaki Toda , Isao Komori
发明人： Masaharu Hori , Masaaki Toda , Isao Komori
IPC分类号： F16C32/06
CPC分类号： F16C33/745 , F16C17/107 , F16C33/107 , F16C43/02 , F16C2370/12
摘要： A fluid dynamic bearing unit is provided which has a high load capacity against a moment load, whose bearing sleeves can be manufactured and fixed easily, and which can provide a required fixing power. The bearing sleeve is inserted into an inner periphery of a housing, and its bottom end is fixed to the top end of a spacer part with an adhesive. Another bearing sleeve is inserted into another part of the inner periphery of the housing, and its top end is fixed to the bottom end of the spacer part with an adhesive.
摘要翻译：提供一种流体动力轴承单元，其具有针对力矩负载的高负载能力，其轴承套筒可以容易地制造和固定，并且可以提供所需的固定力。轴承套筒插入壳体的内周，其底端用粘合剂固定在间隔件的顶端。另一个轴承套被插入壳体的内周的另一部分中，并且其顶端用粘合剂固定到间隔件部分的底端。

8. 发明申请

US20100002966A1 FLUID DYNAMIC BEARING DEVICE AND PROCESS FOR MANUFACTURING THE SAME 有权
标题翻译：流体动力轴承装置及其制造方法
公开(公告)号：US20100002966A1
公开(公告)日：2010-01-07
申请号：US12446870
申请日：2007-08-06
申请人： Masaharu Hori , Isao Komori
发明人： Masaharu Hori , Isao Komori
IPC分类号： F16C32/06 , B21D53/10
CPC分类号： F16C33/08 , F16C17/107 , F16C33/107 , F16C35/02 , F16C2370/12 , Y10T29/49639
摘要： Fixation strength of a bearing sleeve with respect to a housing is increased so that stable bearing performance can be achieved. A fluid dynamic bearing device (1) includes a housing (7) and a bearing sleeve (8) fixed to an inner periphery of the housing (7). The housing (7) and the bearing sleeve (8) have therebetween a press-fitting part (10) at which the housing (7) and the bearing sleeve (8) are fixed by press-fitting, and an adhesive-filled part (11) formed on an opening side with respect to the press-fitting part (10).
摘要翻译：轴承套相对于壳体的固定强度增加，从而可以实现稳定的轴承性能。流体动力轴承装置（1）包括壳体（7）和固定到壳体（7）的内周的轴承套筒（8）。壳体（7）和轴承套筒（8）之间具有压配合部件（10），壳体（7）和轴承套筒（8）通过压配固定在该压配部件上，并且具有粘合剂填充部分 11）形成在相对于压入部（10）的开口侧。

9. 发明申请

US20090092347A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20090092347A1
公开(公告)日：2009-04-09
申请号：US12282057
申请日：2007-02-28
申请人： Kenji Ito , Yoshiharu Inazuka , Isao Komori , Masaharu Hori , Masaaki Toda
发明人： Kenji Ito , Yoshiharu Inazuka , Isao Komori , Masaharu Hori , Masaaki Toda
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C17/026 , F16C17/045 , F16C33/107
摘要： A fluid dynamic bearing device capable of exercising high bearing performance is provided at low cost.A housing 7 is injection molded with a bearing sleeve 8 as an insert. Accordingly, the molding of the housing 7 and the assembly of the housing 7 and the bearing sleeve 8 can be performed in a single step. In addition to this, by simply increasing the die precisions the housing 7 and the bearing sleeve 8 can be fixed easily with high precision. Since the housing 7 is opened at both ends, it is possible to sandwich the bearing sleeve 8, and accordingly, the bearing sleeve 8 can be accurately positioned inside the dies with reliability.
摘要翻译：以低成本提供能够承受高轴承性能的流体动力轴承装置。外壳7被注塑成型，轴承套8作为插入件。因此，壳体7的模制和壳体7和轴承套筒8的组件可以在一个步骤中执行。除此之外，通过简单地增加模具精度，可以高精度地容易地固定壳体7和轴承套筒8。由于壳体7在两端开口，因此能够夹持轴承套筒8，因此可以可靠地将轴承套筒8精确地定位在模具内。

10. 发明申请

US20090022439A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20090022439A1
公开(公告)日：2009-01-22
申请号：US12281555
申请日：2007-02-21
申请人： Tetsuya Yamamoto , Kenji Ito , Isao Komori
发明人： Tetsuya Yamamoto , Kenji Ito , Isao Komori
IPC分类号： F16C33/20
CPC分类号： F16C33/103 , F16C17/107
摘要： A fluid dynamic bearing device having high bearing performance at low cost is provided.A bearing member 6 includes an inner diameter part 8 having a radial bearing surface and an outer diameter part 7 having a mounting surface for a bracket 5. Both the inner diameter part 8 and the outer diameter part 7 are made of a resin. The inner diameter part 8 is preferably formed of an oil-impregnated resin, and more preferably a porous resin, and the outer diameter part 7 is formed of a nonporous resin.
摘要翻译：提供了一种具有低轴承性能的流体动力轴承装置。轴承构件6包括具有径向支承表面的内径部分8和具有用于支架5的安装表面的外径部分7.内径部分8和外径部分7均由树脂制成。内径部8优选由油浸树脂形成，更优选为多孔树脂，外径部7由无孔树脂形成。

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