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公开(公告)号：US20080203838A1
公开(公告)日：2008-08-28
申请号：US11629458
申请日：2005-09-14
CPC分类号： H02K7/085 , F16C17/107 , F16C33/107 , F16C33/1085
摘要： A dynamic pressure generation portion is formed on the outer circumferential surface 2a1 of a shaft portion 2a. This allows for forming a bearing member 7 into which a housing and a sleeve-shaped member that were conventionally separately configured due to the machinability of the dynamic pressure generation portion are integrated. The opening at one end of the bearing member 7 is sealed with a cover member 8 integrated with the bearing member 7 or with a separate cover member 8 secured to the bearing member 7.
摘要翻译： 在轴部2a的外周面2a上形成动压产生部。 由此，能够形成由动压产生部的切削性而通常分开构成的壳体和套筒状部件的轴承部件7。 轴承构件7的一端的开口用与轴承构件7一体化的盖构件8或与固定在轴承构件7上的单独的盖构件8密封。
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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。
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公开(公告)号：US08128289B2
公开(公告)日：2012-03-06
申请号：US12304837
申请日：2007-03-01
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）。
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公开(公告)号：US20090324149A1
公开(公告)日：2009-12-31
申请号：US12304837
申请日：2007-03-01
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）。
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公开(公告)号：US20090136165A1
公开(公告)日：2009-05-28
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。
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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
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。
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公开(公告)号：US08419282B2
公开(公告)日：2013-04-16
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
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。
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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。
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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
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。
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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。
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