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1. 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。

2. 发明授权

US08821021B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08821021B2
公开(公告)日：2014-09-02
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： A shaft member is provided with a shaft portion and a flange portion coupled with a lower end surface of the shaft portion. The shaft portion is formed into a complete circular shape in cross section, and the flange portion is provided with a through-hole 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 so as to exhibit a non-circular shape. The shaft portion and the flange portion are coupled with each other in a state of butting the lower end surface of the shaft portion and an upper end surface of the flange portion against each other. With this, a fluid path is formed by opening both end surfaces of the flange portion.
摘要翻译：轴构件设置有轴部和与轴部的下端面联接的凸缘部。轴部形成为圆形的整个圆形，并且凸缘部设置有通孔，周向区域的一部分相对于轴部的下端缩回到径向外侧以呈现非圆形形状。轴部和凸缘部在轴部的下端面和凸缘部的上端面彼此抵接的状态下彼此联接。由此，通过打开凸缘部的两个端面来形成流体路径。

3. 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。

4. 发明申请

US20160176005A1 SHAFT MEMBER FOR FLUID DYNAMIC BEARING DEVICE AND MANUFACTURING METHOD FOR SHAFT MEMBER 有权
标题翻译：用于流体动力轴承装置的轴件和用于轴件的制造方法
公开(公告)号：US20160176005A1
公开(公告)日：2016-06-23
申请号：US14908259
申请日：2014-07-29
申请人： Jun HIRADE , Shuichi KOMATSU
发明人： Jun HIRADE , Shuichi KOMATSU
IPC分类号： B24B5/307 , B24B5/04 , F16C33/14 , F16C3/02
CPC分类号： B24B5/307 , B24B5/04 , F16C3/02 , F16C17/107 , F16C33/14 , F16C2220/70 , F16C2226/10
摘要： Grinding is performed on an outer peripheral surface of a shaft member (2) while rotationally driving the shaft member (2) under a state in which both end surfaces of the shaft member (2) are sandwiched between a pair of support portions (a backing plate (74) and a pressure plate (75)). A convex surface (2a6) is formed on one axial end surface of the shaft member by swelling an inner-diameter portion thereof, and a flat surface is formed on an end surface (75a) of the pressure plate (75) configured to support the convex surface in a contact manner. The end surface (75a) of the pressure plate (75) and an apex (2a7) of the convex surface (2a6) of the shaft member (2) are brought into contact with each other to support one axial end portion of the shaft member (2).
摘要翻译：在轴构件（2）的两个端面夹在一对支撑部（背衬）之间的状态下，同时在轴构件（2）的旋转驱动的同时，在轴构件（2）的外周面上进行研磨板（74）和压板（75））。通过使其内径部分膨胀而在轴构件的一个轴向端面上形成凸面（2a6），在压板（75）的端面（75a）上形成平坦表面，凸面以接触方式。压板（75）的端面（75a）和轴构件（2）的凸面（2a6）的顶点（2a7）彼此接触以支撑轴构件的一个轴向端部（2）。

5. 发明授权

US08240918B2 Shaft member for fluid bearing device and method of producing the same 有权
标题翻译：流体轴承装置用轴构件及其制造方法
公开(公告)号：US08240918B2
公开(公告)日：2012-08-14
申请号：US12518298
申请日：2007-12-18
申请人： Kimihiko Bitou , Jun Hirade , Kazuto Shimizu , Tetsuya Yamamoto , Isao Komori
发明人： Kimihiko Bitou , Jun Hirade , Kazuto Shimizu , Tetsuya Yamamoto , Isao Komori
IPC分类号： F16C32/06 , B21D53/10
CPC分类号： B23P11/00 , F16C17/107 , F16C33/14 , F16C43/02 , F16C2220/40 , F16C2226/12 , F16C2370/12 , F16D1/072 , Y10T29/49636 , Y10T29/49639
摘要： A shaft portion is press-fitted to a flange portion, and a plastic working portion of a first jig is pressed against an upper end surface of the flange portion, whereby the flange portion is partially subjected to plastic deformation toward an inner peripheral side. With this, a caulked portion is formed between the flange portion and the shaft portion. Further, press-fitting and caulking are performed in a state in which both end surfaces of the flange portion are bound by a second jig and a third jig.
摘要翻译：将轴部压配合到凸缘部，将第一夹具的塑料加工部压在凸缘部的上端面上，由此凸缘部朝向内周侧部分受到塑性变形。由此，在凸缘部和轴部之间形成有铆接部。此外，在凸缘部的两个端面被第二夹具和第三夹具结合的状态下进行压配合和铆接。

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

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。

8. 发明申请

US20100226601A1 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：US20100226601A1
公开(公告)日：2010-09-09
申请号：US12377293
申请日：2007-08-28
申请人： Yoshiharu Inazuka , Jun Hirade , Tetsuya Kurimura , Isao Komori , Kimihiko Bitou
发明人： Yoshiharu Inazuka , Jun Hirade , Tetsuya Kurimura , Isao Komori , Kimihiko Bitou
IPC分类号： F16C32/06
CPC分类号： F16C33/745 , F16C17/107 , F16C33/107 , F16C2370/12 , G11B19/2036 , H02K5/1675
摘要： A hub (10) is a product formed by injection molding of a resin together with a core metal (13) as an inserted component, and the core metal (13) is exposed on a surface of the hub (10). With this configuration, a cavity of a die for molding the hub (10) is not divided by the core metal (13), and hence it is possible to suppress deterioration in fluidity of a resin due to arrangement of the core metal (13) in the cavity.
摘要翻译：轮毂（10）是通过将树脂与作为插入部件的芯金属（13）一起注射成型而形成的产品，并且芯部金属（13）暴露在轮毂（10）的表面上。利用这种构造，用于模制轮毂（10）的模具的空腔不被芯金属（13）分割，因此可以抑制由于芯金属（13）的布置导致的树脂的流动性的劣化，在腔里。

9. 发明申请

US20100129014A1 SHAFT MEMBER FOR FLUID BEARING DEVICE AND METHOD OF PRODUCING THE SAME 有权
标题翻译：用于流体轴承装置的轴件及其制造方法
公开(公告)号：US20100129014A1
公开(公告)日：2010-05-27
申请号：US12518298
申请日：2007-12-18
申请人： Kimihiko Bitou , Jun Hirade , Kazuto Shimizu , Tetsuya Yamamoto , Isao Komori
发明人： Kimihiko Bitou , Jun Hirade , Kazuto Shimizu , Tetsuya Yamamoto , Isao Komori
IPC分类号： F16C17/10 , B21D53/10
CPC分类号： B23P11/00 , F16C17/107 , F16C33/14 , F16C43/02 , F16C2220/40 , F16C2226/12 , F16C2370/12 , F16D1/072 , Y10T29/49636 , Y10T29/49639
摘要： [Object] To manufacture at lower cost a shaft member for a fluid dynamic bearing device, which is excellent in accuracy of bearing surfaces and shape accuracy between the bearing surfaces, and which has high fixation strength between a shaft portion and a flange portion.[Solving Means] A shaft portion (21) is press-fitted to a flange portion (22), and a plastic working portion (31c) of a first jig (31) is pressed against an upper end surface (22a) of the flange portion (22), whereby the flange portion (22) is partially subjected to plastic deformation toward an inner peripheral side. With this, a caulked portion (23) is formed between the flange portion (22) and the shaft portion (21). Further, press-fitting and caulking are performed in a state in which both end surfaces (22a and 22b) of the flange portion (22) are bound by a second jig (32) and a third jig (33).
摘要翻译：为了以较低的成本制造用于流体动力轴承装置的轴构件，其轴承表面的精度和轴承表面之间的形状精度优异，并且在轴部和凸缘部之间具有高的固定强度。 [解决方案]将轴部（21）压配合到凸缘部（22），将第一夹具（31）的塑料加工部（31c）压靠在凸缘的上端面（22a）部分（22），由此凸缘部分（22）部分地朝向内周侧进行塑性变形。由此，在凸缘部（22）和轴部（21）之间形成有铆接部（23）。此外，在凸缘部（22）的两个端面（22a和22b）由第二夹具（32）和第三夹具（33）结合的状态下进行压入和铆接。

10. 发明申请

US20080037918A1 Hydrodynamic Bearing Device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20080037918A1
公开(公告)日：2008-02-14
申请号：US10584314
申请日：2005-01-12
申请人： Yukitaka Hayakawa , Jun Hirade , Tetsuya Kurimura
发明人： Yukitaka Hayakawa , Jun Hirade , Tetsuya Kurimura
IPC分类号： F16C17/10
CPC分类号： F16C17/10 , F16C17/028 , F16C33/1075 , F16C35/02 , F16C2370/12 , G11B19/2009 , Y10T29/49636
摘要： In order to prevent degradation of accuracy and decrease of strength when a hydrodynamic bearing device is assembled and to reduce a cost of the hydrodynamic bearing device, a guide face 2c serving as a guide when a disc hub 3 is press fitted into a shaft member 2 is formed on the shaft member 2. Then, the guide face 2c, an outer circumferential surface 2a3 of the shaft member 2 adjacent to the guide face 2c, and a boundary portion between the guide face 2c and the outer circumferential surface 2a3 are ground simultaneously, thereby forming a blunting portion 2d having a radius r in the boundary portion. Thus, no edge remains between the guide face 2c and the outer circumferential surface 2a3. Therefore, press-fitting resistance when the disc hub is press fitted to an end of the shaft member 2 can be reduced.
摘要翻译：为了防止流体动力轴承装置组装时的精度降低和强度降低，并且降低流体动压轴承装置的成本，当盘毂3压配合到轴构件中时用作导向件的导向面2c 2形成在轴构件2上。然后，引导面2c，轴构件2的与引导面2c相邻的外周面2a，以及引导面2c和外周面2a之间的边界部分同时被磨削，从而形成在边界部分具有半径r的钝化部分2d。因此，引导面2c和外周面2a之间没有边缘残留。因此，当将盘毂压配合到轴构件2的端部时，可以减小压配阻力。

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