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1. 发明申请

US20080212908A1 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：US20080212908A1
公开(公告)日：2008-09-04
申请号：US11795410
申请日：2006-05-15
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： F16C32/06 , B29C45/14
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（8 a 1）和（8 a 2），并且通过使用树脂进行注塑成型，同时插入电铸部（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。

2. 发明授权

US08931175B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08931175B2
公开(公告)日：2015-01-13
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： F16C32/06 , F16C33/10 , F16C17/02 , F16C17/10
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。

3. 发明申请

US20110097025A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20110097025A1
公开(公告)日：2011-04-28
申请号：US12997784
申请日：2009-06-11
申请人： Fuminori Satoji , Toshiyuki Mizutani , Tetsuya Yamamoto , Isao Komori , Tetsuya Kurimura
发明人： Fuminori Satoji , Toshiyuki Mizutani , Tetsuya Yamamoto , Isao Komori , Tetsuya Kurimura
IPC分类号： F16C32/06
CPC分类号： F16C33/723 , F16C17/107 , F16C32/0633 , F16C33/745 , F16C43/02 , F16C2370/12
摘要： In order to improve retention strength of a lid member without increase in size and reduction in bearing property of a bearing device, a fluid dynamic bearing device (1) includes: a shaft member (2); a bearing sleeve (8) which forms a radial bearing gap between the bearing sleeve and an outer peripheral surface of the shaft member (2); a housing (4) which accommodates the bearing sleeve (8) and is opened at both ends; and a lid member (10) which closes an opening on one end side of the housing (9) and forms thrust bearing portions (T1 and T2). The housing (9) is an injection-molded product into which the bearing sleeve (8) is inserted, and the housing (9) has another end with which a seal portion (9b) forming a seal space (S) is integrally formed. The lid member (10) is fitted with the outer peripheral surface of the housing (9) by loose fitting so that the lid member (10) and the housing (9) are bonded and fixed to each other.
摘要翻译：为了提高盖构件的保持强度而不增加轴承装置的尺寸和减小轴承特性，流体动力轴承装置（1）包括：轴构件（2）; 轴承套筒（8），其在所述轴承套筒和所述轴构件（2）的外周表面之间形成径向轴承间隙; 容纳所述轴承套（8）并在两端敞开的壳体（4）; 以及盖构件（10），其封闭所述壳体（9）的一端侧的开口并形成止推轴承部（T1和T2）。壳体（9）是轴承套（8）插入其中的注塑产品，并且壳体（9）具有形成密封空间（S）的密封部分（9b）的另一端。盖构件（10）通过松动配合与壳体（9）的外周面嵌合，使得盖构件（10）和壳体（9）彼此结合固定。

4. 发明授权

US09200674B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US09200674B2
公开(公告)日：2015-12-01
申请号：US14062273
申请日：2013-10-24
申请人： Fuminori Satoji , Toshiyuki Mizutani , Tetsuya Yamamoto , Isao Komori , Tetsuya Kurimura
发明人： Fuminori Satoji , Toshiyuki Mizutani , Tetsuya Yamamoto , Isao Komori , Tetsuya Kurimura
IPC分类号： F16C32/06 , F16C33/72 , F16C17/10 , F16C43/02 , F16C33/74
CPC分类号： F16C33/723 , F16C17/107 , F16C32/0633 , F16C33/745 , F16C43/02 , F16C2370/12
摘要： A fluid dynamic bearing device (21) includes: a shaft member (22); a housing (29) as an outer member which is arranged on a radially outer side of the shaft member (22) and is opened at both ends; a radial bearing gap which is formed on a radially inner side of the housing (29) and faces an outer peripheral surface of the shaft member (22); and a lid member (30) closing an opening on one end side of the housing (29), wherein the lid member (30) is fitted to an outer peripheral surface of the housing (29) with a fastening allowance which does not affect accuracy of a surface defining an outer diameter dimension of the radial bearing gap so that the housing (29) and the lid member (30) are bonded and fixed to each other.
摘要翻译：流体动力轴承装置（21）包括：轴构件（22）; 作为外部构件的壳体（29），其布置在所述轴构件（22）的径向外侧上并且在两端开口; 径向轴承间隙，其形成在所述壳体（29）的径向内侧并且面向所述轴构件（22）的外周面; 以及盖构件（30），其封闭所述壳体（29）的一端侧的开口，其中，所述盖构件（30）以不影响精度的紧固余量装配到所述壳体（29）的外周面限定径向轴承间隙的外径尺寸的表面，使得壳体（29）和盖构件（30）彼此结合并固定。

5. 发明授权

US08591113B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08591113B2
公开(公告)日：2013-11-26
申请号：US12997784
申请日：2009-06-11
申请人： Fuminori Satoji , Toshiyuki Mizutani , Tetsuya Yamamoto , Isao Komori , Tetsuya Kurimura
发明人： Fuminori Satoji , Toshiyuki Mizutani , Tetsuya Yamamoto , Isao Komori , Tetsuya Kurimura
IPC分类号： F16C32/06
CPC分类号： F16C33/723 , F16C17/107 , F16C32/0633 , F16C33/745 , F16C43/02 , F16C2370/12
摘要： A fluid dynamic bearing device includes: a shaft member; a bearing sleeve which forms a radial bearing gap between the bearing sleeve and an outer peripheral surface of the shaft member; a housing which accommodates the bearing sleeve and is opened at both ends; and a lid member which closes an opening on one end side of the housing and forms thrust bearing portions. The housing is an injection-molded product into which the bearing sleeve is inserted, and the housing has another end with which a seal portion forming a seal space is integrally formed. The lid member is fitted with the outer peripheral surface of the housing by loose fitting so that the lid member and the housing are bonded and fixed to each other.
摘要翻译：流体动力轴承装置包括：轴构件; 轴承套筒，其在所述轴承套筒和所述轴构件的外周面之间形成径向轴承间隙; 容纳所述轴承套并在两端开口的壳体; 以及盖构件，其封闭壳体的一端侧的开口并形成止推轴承部。壳体是轴承套筒插入其中的注模产品，壳体具有形成密封空间的密封部分的另一端。盖部件通过松动配合装配在壳体的外周面上，使得盖部件和壳体彼此结合固定。

6. 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。

7. 发明申请

US20130336604A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20130336604A1
公开(公告)日：2013-12-19
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
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。

8. 发明授权

US08387246B2 Shaft member for fluid lubrication bearing apparatuses and a method for producing the same 有权
标题翻译：流体润滑轴承装置的轴构件及其制造方法
公开(公告)号：US08387246B2
公开(公告)日：2013-03-05
申请号：US13090452
申请日：2011-04-20
申请人： Nobuyoshi Yamashita , Natsuhiko Mori , Toshiyuki Mizutani , Takeshi Shimazaki , Koji Yamagata
发明人： Nobuyoshi Yamashita , Natsuhiko Mori , Toshiyuki Mizutani , Takeshi Shimazaki , Koji Yamagata
IPC分类号： B21K1/12
CPC分类号： B24B5/01 , B21K1/12 , B24B7/16 , F16C3/02 , F16C17/107 , F16C33/107 , F16C33/14 , F16C35/02 , F16C2220/46 , F16C2220/70 , F16C2226/12 , F16C2226/60 , Y10T29/49348
摘要： A low-cost shaft member for hydrodynamic bearing apparatuses restores the pressure balance in a thrust bearing gap formed on both axial sides of the flange portion in an early stage. A shaft material integrally having a shaft portion and a flange portion with a through-hole between both end faces of the flange portion is formed in a common forging step. As a result, the through-hole is formed to open to an inner diameter side of the bearing gaps avoiding the thrust bearing gaps formed on both end faces of the flange portion of the shaft member as a finished product.
摘要翻译：用于流体动力轴承装置的低成本轴构件在早期阶段恢复形成在凸缘部分的两个轴向侧面上的止推轴承间隙中的压力平衡。在一般的锻造步骤中形成一体地具有轴部的轴材料和在凸缘部的两个端面之间具有通孔的凸缘部。结果，通孔形成为向轴承间隙的内径侧开口，避免形成在轴构件的凸缘部分的两个端面上的推力轴承间隙作为成品。

9. 发明申请

US20110192210A1 SHAFT MEMBER FOR FLUID LUBRICATION BEARING APPARATUSES AND A METHOD FOR PRODUCING THE SAME 有权
标题翻译：用于流体润滑轴承装置的轴件及其制造方法
公开(公告)号：US20110192210A1
公开(公告)日：2011-08-11
申请号：US13090452
申请日：2011-04-20
申请人： Nobuyoshi YAMASHITA , Natsuhiko Mori , Toshiyuki Mizutani , Takeshi Shimazaki , Koji Yamagata
发明人： Nobuyoshi YAMASHITA , Natsuhiko Mori , Toshiyuki Mizutani , Takeshi Shimazaki , Koji Yamagata
IPC分类号： B21J5/12 , B21K1/10
CPC分类号： B24B5/01 , B21K1/12 , B24B7/16 , F16C3/02 , F16C17/107 , F16C33/107 , F16C33/14 , F16C35/02 , F16C2220/46 , F16C2220/70 , F16C2226/12 , F16C2226/60 , Y10T29/49348
摘要： A low-cost shaft member for hydrodynamic bearing apparatuses restores the pressure balance in a thrust bearing gap formed on both axial sides of the flange portion in an early stage. A shaft material integrally having a shaft portion and a flange portion with a through-hole between both end faces of the flange portion is formed in a common forging step. As a result, the through-hole is formed to open to an inner diameter side of the bearing gaps avoiding the thrust bearing gaps formed on both end faces of the flange portion of the shaft member as a finished product.
摘要翻译：用于流体动力轴承装置的低成本轴构件在早期阶段恢复形成在凸缘部分的两个轴向侧面上的止推轴承间隙中的压力平衡。在一般的锻造步骤中形成一体地具有轴部的轴材料和在凸缘部的两个端面之间具有通孔的凸缘部。结果，通孔形成为向轴承间隙的内径侧开口，避免形成在轴构件的凸缘部分的两个端面上的推力轴承间隙作为成品。

10. 发明申请

US20100266225A1 SHAFT MEMBER FOR FLUID LUBRICATION BEARING APPARATUSES AND A METHOD FOR PRODUCING THE SAME 有权
标题翻译：用于流体润滑轴承装置的轴件及其制造方法
公开(公告)号：US20100266225A1
公开(公告)日：2010-10-21
申请号：US12827014
申请日：2010-06-30
申请人： Nobuyoshi Yamashita , Natsuhiko Mori , Toshiyuki Mizutani , Takeshi Shimazaki , Koji Yamagata
发明人： Nobuyoshi Yamashita , Natsuhiko Mori , Toshiyuki Mizutani , Takeshi Shimazaki , Koji Yamagata
IPC分类号： F16C32/06
CPC分类号： B24B5/01 , B21K1/12 , B24B7/16 , F16C3/02 , F16C17/107 , F16C33/107 , F16C33/14 , F16C35/02 , F16C2220/46 , F16C2220/70 , F16C2226/12 , F16C2226/60 , Y10T29/49348
摘要： A shaft member for hydrodynamic bearing apparatuses which can restore the pressure balance in a thrust bearing gap formed on both axial sides of the flange portion in an early stage is provided at low costs.A shaft material 10 integrally having a shaft portion 11 and a flange portion 12 is formed as a through-hole 19 opening to its both end faces 12a, 12b on the flange portion 12 of the shaft material 10 is formed in a common forging step. As a result, the through-hole 29 is formed to open to the inner diameter side of these bearing gap W1, W2 avoiding thrust bearing gaps W1, W2 formed on both end faces of the flange portion 22 of the shaft member 2 as a finished product.
摘要翻译：能够以低成本提供用于流体动力轴承装置的轴构件，其能够在早期阶段恢复形成在凸缘部的两个轴向侧上的推力轴承间隙中的压力平衡。形成有轴部11和凸缘部12一体地形成的轴材10，在通常的锻造工序中形成有贯通孔19，该贯通孔19在轴材10的凸缘部12上的两端面12a，12b开口。结果，通孔29形成为向这些轴承间隙W1，W2的内径侧开口，避免形成在轴构件2的凸缘部22的两个端面上的推力轴承间隙W1，W2作为成品产品。

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