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1. 发明申请

US20090129710A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20090129710A1
公开(公告)日：2009-05-21
申请号：US11910316
申请日：2006-04-17
申请人： Kenji Ito , Isao Komori , Fuminori Satoji , Fuyuki Ito , Yoshiharu Inazuka
发明人： Kenji Ito , Isao Komori , Fuminori Satoji , Fuyuki Ito , Yoshiharu Inazuka
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C33/745 , F16C2220/04 , H02K7/085 , H02K7/086
摘要： The present invention aims to achieve a reduction in cost for a fluid dynamic bearing device. The fluid dynamic bearing device supports a shaft member (2) radially in a non-contact fashion by a dynamic pressure action generated in a radial bearing gap between an outer peripheral surface of the shaft member (2) and an inner peripheral surface (7a) of a bearing member (7), and is composed of the shaft member (2), the bearing member (7), a cover member (8), and a seal member (9). The shaft member (2) is inserted into an inner periphery of the bearing member (7), and an opening at a lower end thereof is sealed by the cover member (8). The seal member (9) is attached to an opening at an upper end of the bearing member (7), forming a seal space (S) between itself and the outer peripheral surface of the shaft member (2). Dynamic pressure grooves (G) of radial bearing portions (R1 and R2) are formed in an inner peripheral surface (7a) of the bearing member (7) by molding.
摘要翻译：本发明旨在实现流体动力轴承装置的成本的降低。流体动力轴承装置通过在轴构件（2）的外周表面和内周表面（7a）之间的径向轴承间隙中产生的动压作用以非接触的方式径向地支撑轴构件（2）轴承部件（7），由轴部件（2），轴承部件（7），盖部件（8）和密封部件（9）构成。轴构件（2）插入到轴承构件（7）的内周，并且其下端的开口被盖构件（8）密封。密封构件（9）安装在轴承构件（7）的上端的开口处，在其与轴构件（2）的外周面之间形成密封空间（S）。径向轴承部分（R1和R2）的动态压力槽（G）通过模制形成在轴承件（7）的内周表面（7a）中。

2. 发明授权

US08256962B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08256962B2
公开(公告)日：2012-09-04
申请号：US11910316
申请日：2006-04-17
申请人： Kenji Ito , Isao Komori , Fuminori Satoji , Fuyuki Ito , Yoshiharu Inazuka
发明人： Kenji Ito , Isao Komori , Fuminori Satoji , Fuyuki Ito , Yoshiharu Inazuka
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C33/745 , F16C2220/04 , H02K7/085 , H02K7/086
摘要： The present invention aims to achieve a reduction in cost for a fluid dynamic bearing device. The fluid dynamic bearing device supports a shaft member (2) radially in a non-contact fashion by a dynamic pressure action generated in a radial bearing gap between an outer peripheral surface of the shaft member (2) and an inner peripheral surface (7a) of a bearing member (7), and is composed of the shaft member (2), the bearing member (7), a cover member (8), and a seal member (9). The shaft member (2) is inserted into an inner periphery of the bearing member (7), and an opening at a lower end thereof is sealed by the cover member (8). The seal member (9) is attached to an opening at an upper end of the bearing member (7), forming a seal space (S) between itself and the outer peripheral surface of the shaft member (2). Dynamic pressure grooves (G) of radial bearing portions (R1 and R2) are formed in an inner peripheral surface (7a) of the bearing member (7) by molding.
摘要翻译：本发明旨在实现流体动力轴承装置的成本的降低。流体动力轴承装置通过在轴构件（2）的外周表面和内周表面（7a）之间的径向轴承间隙中产生的动压作用以非接触的方式径向地支撑轴构件（2）轴承部件（7），由轴部件（2），轴承部件（7），盖部件（8）和密封部件（9）构成。轴构件（2）插入到轴承构件（7）的内周，并且其下端的开口被盖构件（8）密封。密封构件（9）安装在轴承构件（7）的上端的开口处，在其与轴构件（2）的外周面之间形成密封空间（S）。径向轴承部分（R1和R2）的动态压力槽（G）通过模制形成在轴承件（7）的内周表面（7a）中。

3. 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。

4. 发明授权

US08177434B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08177434B2
公开(公告)日：2012-05-15
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 includes a housing injection molded with a bearing sleeve as an insert. Accordingly, the molding of the housing and the assembly of the housing and the bearing sleeve can be performed in a single step. In addition to this, by simply increasing the die precisions the housing and the bearing sleeve can be fixed easily with high precision. Since the housing is opened at both ends, it is possible to sandwich the bearing sleeve, and accordingly, the bearing sleeve can be accurately positioned inside the dies with reliability.
摘要翻译：流体动力轴承装置包括注射成型的轴承套筒作为插入件的壳体。因此，壳体的模制和壳体和轴承套的组装可以在一个步骤中进行。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和轴承套筒。由于壳体在两端开口，因此可以夹持轴承套筒，因此可以可靠地将轴承套筒精确地定位在模具内部。

5. 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。

6. 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。

7. 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。

8. 发明授权

US08128289B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08128289B2
公开(公告)日：2012-03-06
申请号：US12304837
申请日：2007-03-01
申请人： Tetsuya Yamamoto , Isao Komori , Yoshiharu Inazuka , Masaharu Hori
发明人： Tetsuya Yamamoto , Isao Komori , Yoshiharu Inazuka , Masaharu Hori
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/08 , F16C17/107 , F16C2370/12
摘要： An outer peripheral surface (8d) of a bearing sleeve (8) is formed on a radially inside with respect to a first dynamic pressure generation portion (B1). In this case, it is possible to reduce a thickness of the bearing sleeve (8) while securing a first thrust dynamic pressure generating portion (B1) which has a thrust load capacity equivalent to that in a conventional case where a thrust dynamic pressure generating portion is formed in an end surface of the bearing sleeve. Accordingly, it is possible to reduce the thickness of the bearing sleeve (8) without sacrificing a bearing performance in a thrust direction. With this structure, a total amount of a lubricating oil sealed in a bearing device can be reduced, thereby reducing a capacity of a buffering function so as to downsize a sealing portion (9), and by extension, downsizing a fluid dynamic bearing device (1).
摘要翻译：在第一动压产生部（B1）的径向内侧形成有轴承套（8）的外周面（8d）。在这种情况下，可以在确保推力载荷能力等同于推力动压产生部分（B1）的第一推力动压产生部分（B1）的同时，减小轴承套筒（8）的厚度，形成在轴承套的端面上。因此，可以在不牺牲推力方向的轴承性能的情况下减小轴承套（8）的厚度。利用这种结构，可以减少密封在轴承装置中的润滑油的总量，从而降低缓冲功能的能力，从而减小密封部分（9）的尺寸，并且通过扩展来减小流体动态轴承装置（ 1）。

9. 发明申请

US20090324149A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20090324149A1
公开(公告)日：2009-12-31
申请号：US12304837
申请日：2007-03-01
申请人： Tetsuya Yamamoto , Isao Komori , Yoshiharu Inazuka , Masaharu Hori
发明人： Tetsuya Yamamoto , Isao Komori , Yoshiharu Inazuka , Masaharu Hori
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/08 , F16C17/107 , F16C2370/12
摘要： An outer peripheral surface (8d) of a bearing sleeve (8) is formed on a radially inside with respect to a first dynamic pressure generation portion (B1). In this case, it is possible to reduce a thickness of the bearing sleeve (8) while securing a first thrust dynamic pressure generating portion (B1) which has a thrust load capacity equivalent to that in a conventional case where a thrust dynamic pressure generating portion is formed in an end surface of the bearing sleeve. Accordingly, it is possible to reduce the thickness of the bearing sleeve (8) without sacrificing a bearing performance in a thrust direction. With this structure, a total amount of a lubricating oil sealed in a bearing device can be reduced, thereby reducing a capacity of a buffering function so as to downsize a sealing portion (9), and by extension, downsizing a fluid dynamic bearing device (1).
摘要翻译：在第一动压产生部（B1）的径向内侧形成有轴承套（8）的外周面（8d）。在这种情况下，可以在确保推力载荷能力等同于推力动压产生部分（B1）的第一推力动压产生部分（B1）的同时，减小轴承套筒（8）的厚度，形成在轴承套的端面上。因此，可以在不牺牲推力方向的轴承性能的情况下减小轴承套（8）的厚度。利用这种结构，可以减少密封在轴承装置中的润滑油的总量，从而降低缓冲功能的能力，从而减小密封部分（9）的尺寸，并且通过扩展来减小流体动态轴承装置（ 1）。

10. 发明授权

US08403565B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08403565B2
公开(公告)日：2013-03-26
申请号：US12293514
申请日：2007-03-13
申请人： Masaharu Hori , Yoshiharu Inazuka
发明人： Masaharu Hori , Yoshiharu Inazuka
IPC分类号： F16C32/06
CPC分类号： F16C33/745 , F16C17/107 , F16C33/103 , F16C2220/04 , F16C2370/12
摘要： An oil film is formed in a radial bearing clearance of a first radial bearing portion (R1) and a second radial bearing portion (R2) so as to rotatably support a shaft member (2). A bearing sleeve (8) and the shaft member (2) are accommodated in a housing (7), and the housing (7) has an inner space filled with a lubricant oil and has an opening sealed by a seal member (9). A first seal space (S1) is formed by means of an inner peripheral surface (9a2) of the seal member (9). The housing (7) and the seal member (9) are formed through injection molding of a resin.
摘要翻译：在第一径向轴承部分（R1）和第二径向支承部分（R2）的径向轴承间隙中形成油膜，以便可旋转地支撑轴件（2）。轴承套（8）和轴构件（2）容纳在壳体（7）中，并且壳体（7）具有填充有润滑油的内部空间，并且具有由密封构件（9）密封的开口。第一密封空间（S1）通过密封构件（9）的内周面（9a2）形成。壳体（7）和密封构件（9）通过树脂的注模成型而形成。

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