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1. 发明申请

US20120230618A1 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：US20120230618A1
公开(公告)日：2012-09-13
申请号：US13509910
申请日：2010-11-24
申请人： Kouyou Suzuki , Hiroshi Niwa , Fuminori Satoji , Kimihiko Bito , Yoshiharu Inazuka
发明人： Kouyou Suzuki , Hiroshi Niwa , Fuminori Satoji , Kimihiko Bito , Yoshiharu Inazuka
IPC分类号： F16C32/06
CPC分类号： F16C32/0629 , F16C17/107 , F16C33/1085 , F16C33/74 , F16C33/743 , F16C33/745
摘要： A weld line formed by injection molding of a sealing member is formed at a circumferential position out of deepest portions of axial grooves, which form thinned portions of the sealing member (optimally, in a region of a cylindrical surface between the axial grooves in a circumferential direction). Thus, the sealing member is prevented from being provided with parts having locally markedly low strength, and hence damage to be caused by press-fitting is prevented.
摘要翻译：通过密封部件的注射成形形成的焊接线形成在轴向槽的最深部的圆周位置处，形成密封部件的薄壁部（最好是在圆周面的轴向槽之间的圆筒面的区域方向）。因此，防止密封构件设置有局部显着低强度的部件，因此防止由压配合引起的损坏。

2. 发明申请

US20140145366A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20140145366A1
公开(公告)日：2014-05-29
申请号：US14168108
申请日：2014-01-30
申请人： Kouyou Suzuki , Hiroshi Niwa , Fuminori Satoji , Kimihiko Bito , Yoshiharu Inazuka
发明人： Kouyou Suzuki , Hiroshi Niwa , Fuminori Satoji , Kimihiko Bito , Yoshiharu Inazuka
IPC分类号： F16C32/06
CPC分类号： F16C32/0629 , F16C17/107 , F16C33/1085 , F16C33/74 , F16C33/743 , F16C33/745
摘要： A weld line formed by injection molding of a sealing member is formed at a circumferential position out of deepest portions of axial grooves, which form thinned portions of the sealing member (optimally, in a region of a cylindrical surface between the axial grooves in a circumferential direction). Thus, the sealing member is prevented from being provided with parts having locally markedly low strength, and hence damage to be caused by press-fitting is prevented.
摘要翻译：通过密封部件的注射成形形成的焊接线形成在轴向槽的最深部的圆周位置处，形成密封部件的薄壁部（最好是在圆周面的轴向槽之间的圆筒面的区域方向）。因此，防止密封构件设置有局部显着低强度的部件，因此防止由压配合引起的损坏。

3. 发明授权

US09154012B2 Fluid dynamic bearing device and assembly method for same 有权
标题翻译：流体动力轴承装置及其装配方法相同
公开(公告)号：US09154012B2
公开(公告)日：2015-10-06
申请号：US13580091
申请日：2011-03-28
申请人： Masaharu Hori , Jun Hirade , Tatsuya Hayashi , Yasuhiro Yamamoto , Natsuhiko Mori , Fuminori Satoji , Toshiaki Niwa , Tetsuya Kurimura , Kimihiko Bito
发明人： Masaharu Hori , Jun Hirade , Tatsuya Hayashi , Yasuhiro Yamamoto , Natsuhiko Mori , Fuminori Satoji , Toshiaki Niwa , Tetsuya Kurimura , Kimihiko Bito
IPC分类号： F16C32/06 , H02K5/167 , F16C17/10 , F16C33/14 , F16C43/02 , F16C33/10 , F16C33/12
CPC分类号： H02K5/1672 , F16C17/107 , F16C33/107 , F16C33/128 , F16C33/14 , F16C43/02 , F16C2220/04 , F16C2220/20 , F16C2226/12 , F16C2226/14 , F16C2226/40 , F16C2360/46 , H02K2205/03 , H02K2213/09
摘要： Providing a fluid dynamic bearing device, wherein the outer member comprises a member formed by a pressing process on a plate member, the radial bearing surface and at least the one of the thrust bearing surfaces of the outer member being formed by the pressing process, and wherein at least a part of the inner member, which forms the radial bearing surface and the thrust bearing surfaces of the inner member, is made of a sintered metal.
摘要翻译：提供一种流体动力轴承装置，其中外部构件包括通过在板构件上的压制工艺形成的构件，径向支承表面和外部构件的至少一个推力支承表面通过压制工艺形成，并且其中形成所述径向支承面的所述内部构件的至少一部分和所述内部构件的推力承载面由所述烧结金属制成。

4. 发明申请

US20120315169A1 FLUID DYNAMIC BEARING DEVICE AND ASSEMBLY METHOD FOR SAME 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：US20120315169A1
公开(公告)日：2012-12-13
申请号：US13580091
申请日：2011-03-28
申请人： Masaharu Hori , Jun Hirade , Tatsuya Hayashi , Yasuhiro Yamamoto , Natsuhiko Mori , Fuminori Satoji , Toshiaki Niwa , Tetsuya Kurimura , Kimihiko Bito
发明人： Masaharu Hori , Jun Hirade , Tatsuya Hayashi , Yasuhiro Yamamoto , Natsuhiko Mori , Fuminori Satoji , Toshiaki Niwa , Tetsuya Kurimura , Kimihiko Bito
IPC分类号： F16C32/06 , F04D13/06
CPC分类号： H02K5/1672 , F16C17/107 , F16C33/107 , F16C33/128 , F16C33/14 , F16C43/02 , F16C2220/04 , F16C2220/20 , F16C2226/12 , F16C2226/14 , F16C2226/40 , F16C2360/46 , H02K2205/03 , H02K2213/09
摘要： Providing a fluid dynamic bearing device, wherein the outer member comprises a member formed by a pressing process on a plate member, the radial bearing surface and at least the one of the thrust bearing surfaces of the outer member being formed by the pressing process, and wherein at least a part of the inner member, which forms the radial bearing surface and the thrust bearing surfaces of the inner member, is made of a sintered metal.
摘要翻译：提供一种流体动力轴承装置，其中外部构件包括通过在板构件上的压制工艺形成的构件，径向支承表面和外部构件的至少一个推力支承表面通过压制工艺形成，并且其中形成所述径向支承面的所述内部构件的至少一部分和所述内部构件的推力承载面由所述烧结金属制成。

5. 发明申请

US20100202715A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20100202715A1
公开(公告)日：2010-08-12
申请号：US12670437
申请日：2008-08-12
申请人： Jun Hirade , Kimihiko Bito , Tetsuya Yamamoto
发明人： Jun Hirade , Kimihiko Bito , Tetsuya Yamamoto
IPC分类号： F16C32/06
CPC分类号： G11B19/2036 , F16C17/107 , F16C2370/12
摘要： To manufacture a shaft member, which is excellent in both accuracy and strength at low cost, a shaft member (2) includes a shaft portion (21) and a flange portion (22) provided to one end of the shaft portion (21). The flange portion (22) has an annular shape, and the shaft portion (21) and the flange portion (22) are fixed by a welded portion (23), which is formed by applying a laser beam (35) to an upper end of an inner periphery thereof.
摘要翻译：为了制造精密度和强度低的轴构件，轴构件（2）包括轴部（21）和设置在轴部（21）的一端的凸缘部（22）。凸缘部22具有环状，轴部21和凸缘部22由焊接部23固定，焊接部23通过将激光束（35）施加到上端的内周。

6. 发明申请

US20110176758A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20110176758A1
公开(公告)日：2011-07-21
申请号：US13121807
申请日：2009-09-16
申请人： Kimihiko Bito , Jun Hirade
发明人： Kimihiko Bito , Jun Hirade
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/1085 , F16C43/02 , F16C2370/12
摘要： In order to easily and inexpensively manufacture a shaft member provided with a flange, which is capable of stably yielding excellent bearing performance, a shaft member (2) is provided with a shaft portion (2a) and a flange portion (2b) coupled with a lower end surface (2a2) of the shaft portion (2a). The shaft portion (2a) is formed into a complete circular shape in cross section, and the flange portion (2b) is provided with a through-hole (2c) in which a part of a circumferential region is retracted to a radially outer side with respect to a lower end of the shaft portion (2a) so as to exhibit a non-circular shape. The shaft portion (2a) and the flange portion (2b) are coupled with each other in a state of butting the lower end surface (2a2) of the shaft portion (2a) and an upper end surface (2b1) of the flange portion (2b) against each other. With this, a fluid path (11) is formed by opening both end surfaces (2b1) and (2b2) of the flange portion (2b) while being constituted by the following: an upper end opening portion defined by an upper end opening portion of the through-hole (2c) and a lower end portion of the shaft portion (2a); and a lower end opening portion constituted by a lower end opening portion of the through-hole (2c).
摘要翻译：为了容易且廉价地制造设置有能够稳定地产生优异的轴承性能的凸缘的轴构件，轴构件（2）设置有轴部（2a）和凸缘部（2b），凸缘部轴部（2a）的下端面（2a2）。轴部（2a）的横截面形成为圆形，凸缘部（2b）设置有贯通孔（2c），其中周向部分的一部分缩回到径向外侧，相对于轴部（2a）的下端，以呈现非圆形形状。轴部分（2a）和凸缘部分（2b）在轴部分（2a）的下端表面（2a2）和凸缘部分的上端面（2b1）对接的状态下彼此联接 2b）彼此。由此，通过打开凸缘部分（2b）的两个端面（2b1）和（2b2）同时形成流体路径（11），同时由以下构成：上端开口部分由上端开口部分通孔（2c）和轴部分（2a）的下端部分; 以及由通孔（2c）的下端开口部构成的下端开口部。

7. 发明授权

US08876385B2 Bearing member and fluid dynamic bearing device using same 有权
标题翻译：轴承构件和流体动力轴承装置使用相同
公开(公告)号：US08876385B2
公开(公告)日：2014-11-04
申请号：US13699257
申请日：2011-04-21
申请人： Kazuyoshi Harada , Kimihiko Bito , Fuyuki Ito
发明人： Kazuyoshi Harada , Kimihiko Bito , Fuyuki Ito
IPC分类号： F16C32/06 , F16C33/10 , F16C17/10
CPC分类号： F16C32/0629 , F16C17/107 , F16C33/1065 , F16C33/107
摘要： A sintered metal bearing member is provided that includes radial bearing surfaces arranged at two regions spaced apart from each other in an axial direction on an inner peripheral surface. The bearing member includes radial dynamic pressure generating portions in contact with the radial bearing surfaces. The radial dynamic pressure generating portions are formed on the radial bearing surfaces. The bearing member includes a thrust bearing surface arranged on at least one of the end surfaces and a thrust dynamic pressure generating portion for generating a dynamic pressure in the lubricating oil in contact with the thrust bearing surface. The thrust dynamic pressure generating portion is formed on the thrust bearing surface. The bearing member includes a middle relief portion arranged between the radial bearing surfaces in the axial direction. The middle relief portion has a larger diameter than the radial bearing surfaces.
摘要翻译：提供一种烧结金属轴承构件，其包括在内周面上沿轴向彼此间隔开的两个区域布置的径向支承表面。轴承构件包括与径向支承表面接触的径向动压产生部分。径向动压产生部分形成在径向支承表面上。轴承构件包括布置在至少一个端面上的止推轴承表面和用于在与止推轴承表面接触的润滑油中产生动态压力的推力动压产生部分。推力动压产生部形成在推力支承面上。轴承构件包括在轴向方向上布置在径向支承表面之间的中间浮雕部分。中间的释放部分具有比径向支承表面更大的直径。

8. 发明授权

US08297844B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08297844B2
公开(公告)日：2012-10-30
申请号：US12670437
申请日：2008-08-12
申请人： Jun Hirade , Kimihiko Bito , Tetsuya Yamamoto
发明人： Jun Hirade , Kimihiko Bito , Tetsuya Yamamoto
IPC分类号： F16C32/06
CPC分类号： G11B19/2036 , F16C17/107 , F16C2370/12
摘要： To manufacture a shaft member, which is excellent in both accuracy and strength at low cost, a shaft member (2) includes a shaft portion (21) and a flange portion (22) provided to one end of the shaft portion (21). The flange portion (22) has an annular shape, and the shaft portion (21) and the flange portion (22) are fixed by a welded portion (23), which is formed by applying a laser beam (35) to an upper end of an inner periphery thereof.
摘要翻译：为了制造精密度和强度低的轴构件，轴构件（2）包括轴部（21）和设置在轴部（21）的一端的凸缘部（22）。凸缘部22具有环状，轴部21和凸缘部22由焊接部23固定，焊接部23通过将激光束（35）施加到上端的内周。

9. 发明授权

US08926183B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08926183B2
公开(公告)日：2015-01-06
申请号：US14002037
申请日：2012-02-28
申请人： Hiroyuki Noda , Natsuhiko Mori , Tetsuya Kurimura , Isao Komori , Masaharu Hori , Kimihiko Bito , Toshiyuki Mizutani
发明人： Hiroyuki Noda , Natsuhiko Mori , Tetsuya Kurimura , Isao Komori , Masaharu Hori , Kimihiko Bito , Toshiyuki Mizutani
IPC分类号： F16C32/06 , F16C17/02 , F16C43/02 , F16C17/10 , F16C33/10 , F16C33/14 , G11B19/20
CPC分类号： F16C32/0633 , F16C17/026 , F16C17/107 , F16C33/107 , F16C33/14 , F16C43/02 , F16C2220/20 , F16C2220/40 , F16C2220/44 , F16C2220/70 , F16C2223/02 , F16C2226/12 , F16C2226/52 , F16C2240/40 , F16C2370/12 , G11B19/2036
摘要： An inner peripheral surface and a lower end surface of a bearing sleeve made of a sintered metal are each formed into a smooth cylindrical surface or a flat surface that does not have a dynamic pressure generating portion. Thus, a step of forming the dynamic pressure generating portion can be omitted from a manufacturing step of the bearing sleeve, and cost of dies can be markedly reduced. Further, the inner peripheral surface of the bearing sleeve is formed into the smooth cylindrical surface, and hence a radial dynamic pressure generating portion is formed on an outer peripheral surface of a shaft member. However, the outer peripheral surface of the shaft portion is accessible to tools, and hence the radial dynamic pressure generating portion can be formed easily with high accuracy. As a result, accuracy of a radial bearing gap is enhanced so that a bearing rigidity is enhanced.
摘要翻译：由烧结金属制成的轴承套的内周面和下端面分别形成为没有动压产生部的光滑圆柱面或平面。因此，可以从轴承套筒的制造步骤中省略形成动压产生部的步骤，并且可以显着降低模具的成本。此外，轴承套筒的内周面形成为平滑的圆筒形表面，因此在轴构件的外周面上形成径向动压产生部。然而，轴部的外周面能够被工具接近，因此能够容易地高精度地形成径向动压产生部。结果，径向轴承间隙的精度提高，从而提高了轴承刚度。

10. 发明申请

US20130071054A1 BEARING MEMBER AND FLUID DYNAMIC BEARING DEVICE USING SAME 有权
标题翻译：使用相同的轴承座和流体动力轴承装置
公开(公告)号：US20130071054A1
公开(公告)日：2013-03-21
申请号：US13699257
申请日：2011-04-21
申请人： Kazuyoshi Harada , Kimihiko Bito , Fuyuki Ito
发明人： Kazuyoshi Harada , Kimihiko Bito , Fuyuki Ito
IPC分类号： F16C32/06
CPC分类号： F16C32/0629 , F16C17/107 , F16C33/1065 , F16C33/107
摘要： When a bearing member (bearing sleeve (8)) is formed of a sintered metal comprising a middle relief portion (E), a lubricating oil can be impregnated and retained in inner pores of the sintered metal. Thus, when the lubricating oil in a middle relief space (E0) is drawn into a radial bearing gap side and lubricating oil pressure in the middle relief space (E0) decreases, the lubricating oil impregnated in the inner pores of the bearing sleeve (8) is drawn out from surface pores of the middle relief portion (E) and supplied into the middle relief space (E0). Thus, generation of negative pressure is prevented.
摘要翻译：当轴承构件（轴承套筒（8））由包括中间浮雕部分（E）的烧结金属形成时，可以将润滑油浸渍并保留在烧结金属的内孔中。因此，当中间浮雕空间（E0）中的润滑油被拉入径向轴承间隙侧并且中间浮雕空间（E0）中的润滑油压力降低时，浸渍在轴承套筒（8）的内孔中的润滑油）从中间浮雕部（E）的表面孔拉出并供给到中间浮雕空间（E0）。因此，防止产生负压。

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