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1. 发明授权

US08388226B2 Dynamic bearing device 有权
标题翻译：动态轴承装置
公开(公告)号：US08388226B2
公开(公告)日：2013-03-05
申请号：US13425083
申请日：2012-03-20
申请人： Kazutoyo Murakami , Masaki Egami , Eiichiro Shimizu , Kenji Ito , Fuminori Satoji
发明人： Kazutoyo Murakami , Masaki Egami , Eiichiro Shimizu , Kenji Ito , Fuminori Satoji
IPC分类号： F16C17/10 , F16C35/02
CPC分类号： H02K7/085 , B29C45/34 , B29K2081/04 , B29K2105/12 , B29K2707/04 , F16C17/107 , F16C35/02 , F16C2370/12
摘要： A dynamic bearing device allows production of a smaller housing at low cost and suppresses ion elution from the resin portion to thereby maintain cleanliness in the dynamic bearing device and exert a desired bearing performance. A dynamic bearing device 1 is equipped with a bearing sleeve 8 fixed to the inner periphery of the housing 7, and a rotary member rotatable relative to the bearing sleeve 8 and the housing 7, in which the rotary member is supported in the radial direction and the thrust direction in a non-contact manner by a dynamic pressure action of a lubricant fluid generated in a bearing clearance. The housing 7 is formed by injection molding of a resin composition containing polyphenylene sulfide (PPS) as the base resin and PAN type carbon fibers as a filler.
摘要翻译：动态轴承装置允许以低成本生产较小的壳体，并且抑制从树脂部分的离子洗脱，从而保持动态轴承装置的清洁度并发挥期望的轴承性能。动态轴承装置1配备有固定到壳体7的内周的轴承套筒8和可相对于轴承套筒8和壳体7旋转的旋转构件，旋转构件沿径向方向被支撑，通过在轴承间隙中产生的润滑剂流体的动态压力作用以非接触方式推动推力方向。外壳7通过以聚苯硫醚（PPS）为基础树脂和PAN型碳纤维作为填料的树脂组合物的注射成型而形成。

2. 发明申请

US20120175984A1 DYNAMIC BEARING DEVICE 有权
标题翻译：动态轴承装置
公开(公告)号：US20120175984A1
公开(公告)日：2012-07-12
申请号：US13425083
申请日：2012-03-20
申请人： Kazutoyo Murakami , Masaki Egami , Eiichiro Shimazu , Kenji Ito , Fuminori Satoji
发明人： Kazutoyo Murakami , Masaki Egami , Eiichiro Shimazu , Kenji Ito , Fuminori Satoji
IPC分类号： F16C32/06 , H02K7/08
CPC分类号： H02K7/085 , B29C45/34 , B29K2081/04 , B29K2105/12 , B29K2707/04 , F16C17/107 , F16C35/02 , F16C2370/12
摘要： Disclosed is a dynamic bearing device which allows production of a smaller housing at low cost and which suppresses ion elution from the resin portion to thereby maintain cleanliness in the dynamic bearing device and exert a desired bearing performance. A dynamic bearing device 1 is equipped with a bearing sleeve 8 fixed to the inner periphery of the housing 7, and a rotary member rotatable relative to the bearing sleeve 8 and the housing 7, in which the rotary member is supported in the radial direction and the thrust direction in a non-contact manner by a dynamic pressure action of a lubricant fluid generated in a bearing clearance. The housing 7 is formed by injection molding of a resin composition containing polyphenylene sulfide (PPS) as the base resin and PAN type carbon fibers as a filler.
摘要翻译：公开了一种动态轴承装置，其允许以低成本生产较小的壳体，并且其抑制了从树脂部分的离子洗脱，从而保持动态轴承装置的清洁度并发挥期望的轴承性能。动态轴承装置1配备有固定到壳体7的内周的轴承套筒8和可相对于轴承套筒8和壳体7旋转的旋转构件，旋转构件沿径向方向被支撑，通过在轴承间隙中产生的润滑剂流体的动态压力作用以非接触方式推动推力方向。外壳7通过以聚苯硫醚（PPS）为基础树脂和PAN型碳纤维作为填料的树脂组合物的注射成型而形成。

3. 发明申请

US20080309183A1 Dynamic Bearing Device 审中-公开
标题翻译：动态轴承装置
公开(公告)号：US20080309183A1
公开(公告)日：2008-12-18
申请号：US11659079
申请日：2005-08-01
申请人： Kazutoyo Murakami , Masaki Egami , Eiichiro Shimazu , Kenji Ito , Fuminori Satoji
发明人： Kazutoyo Murakami , Masaki Egami , Eiichiro Shimazu , Kenji Ito , Fuminori Satoji
IPC分类号： H02K7/08 , F16C35/02 , F16C32/06
CPC分类号： H02K7/085 , B29C45/34 , B29K2081/04 , B29K2105/12 , B29K2707/04 , F16C17/107 , F16C35/02 , F16C2370/12
摘要： Disclosed is a dynamic bearing device which allows production of a smaller housing at low cost and which suppresses ion elution from the resin portion to thereby maintain cleanliness in the dynamic bearing device and exert a desired bearing performance. A dynamic bearing device 1 is equipped with a bearing sleeve 8 fixed to the inner periphery of the housing 7, and a rotary member rotatable relative to the bearing sleeve 8 and the housing 7, in which the rotary member is supported in the radial direction and the thrust direction in a non-contact manner by a dynamic pressure action of a lubricant fluid generated in a bearing clearance. The housing 7 is formed by injection molding of a resin composition containing polyphenylene sulfide (PPS) as the base resin and PAN type carbon fibers as a filler.
摘要翻译：公开了一种动态轴承装置，其允许以低成本生产较小的壳体，并且其抑制了从树脂部分的离子洗脱，从而保持动态轴承装置的清洁度并发挥期望的轴承性能。动态轴承装置1配备有固定到壳体7的内周的轴承套筒8和可相对于轴承套筒8和壳体7旋转的旋转构件，旋转构件沿径向方向被支撑，通过在轴承间隙中产生的润滑剂流体的动态压力作用以非接触方式推动推力方向。外壳7通过以聚苯硫醚（PPS）为基础树脂和PAN型碳纤维作为填料的树脂组合物的注射成型而形成。

4. 发明申请

US20090297076A1 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：US20090297076A1
公开(公告)日：2009-12-03
申请号：US12063174
申请日：2006-08-10
申请人： Kazutoyo Murakami , Masaki Egami , Kenji Ito , Isao Komori , Mitsuo Sasabe
发明人： Kazutoyo Murakami , Masaki Egami , Kenji Ito , Isao Komori , Mitsuo Sasabe
IPC分类号： F16C32/06
CPC分类号： H02K7/085 , F16C17/107 , F16C35/02
摘要： A hub portion of a fluid dynamic bearing device is formed from a resin composition in which polyphenylene sulfide (PPS) is employed as a base resin and with which carbon fibers are mixed. In this manner, the wear resistance and the conductivity can be improved. Alternatively, both portions of a stationary body and a rotating body of the fluid dynamic bearing device which portions face to each other through a bearing gap are formed from a resin composition in which polyphenylene sulfide (PPS) is employed as the base resin. In this manner, excellent wear resistance can be obtained.
摘要翻译：流体动力轴承装置的轮毂部由树脂组合物形成，其中使用聚苯硫醚（PPS）作为基础树脂并与其混合碳纤维。以这种方式，可以提高耐磨性和导电性。或者，通过使用聚苯硫醚（PPS）作为基础树脂的树脂组合物形成通过轴承间隙彼此面对的流体动力轴承装置的固定体和旋转体的两部分。以这种方式，可以获得优异的耐磨性。

5. 发明申请

US20090302697A1 HOUSING FOR FLUID DYNAMIC BEARING DEVICE 审中-公开
标题翻译：流体动力轴承装置的外壳
公开(公告)号：US20090302697A1
公开(公告)日：2009-12-10
申请号：US12063073
申请日：2006-04-11
申请人： Kazutoyo Murakami , Masaki Egami , Kenji Ito , Isao Komori
发明人： Kazutoyo Murakami , Masaki Egami , Kenji Ito , Isao Komori
IPC分类号： H02K5/167 , F16C35/00
CPC分类号： F16C17/107 , F16C43/02 , F16C2370/12
摘要： Provided is a housing for a resin fluid dynamic bearing device in which deterioration with time of a fixing force for another member is mitigated and which can maintain a high bearing performance for a long period of time. The housing formed of a resin composition exhibiting a compression creep amount of 8% or less when a compressive pressure of 80 MPa is applied for 168 hours at an atmosphere temperature of 80° C., provides a sufficient fixing force for the another member fixed with a press-fitting force, for example, a bearing sleeve press-fitted into an inner periphery of the housing even after a long term use. Thus, there is no fear of fixing positions of the another member with respect to the housing being deviated and a high bearing performance is maintained for a long period of time.
摘要翻译：本发明提供一种用于树脂流体动力轴承装置的壳体，其中减轻了另一构件的固定力随时间的劣化，并且能够长期保持较高的轴承性能。当在80℃的气氛温度下施加80MPa的压缩压力168小时时，由表现出8％以下的压缩蠕变量的树脂组合物形成的壳体，为固定在其上的另一构件提供足够的固定力压配合力，例如即使在长期使用后也被压配合到壳体的内周的轴承套筒。因此，不会担心另一构件相对于壳体偏离的位置固定，并且长时间保持较高的轴承性能。

6. 发明授权

US08778242B2 Housing for fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置外壳
公开(公告)号：US08778242B2
公开(公告)日：2014-07-15
申请号：US13361503
申请日：2012-01-30
申请人： Kazutoyo Murakami , Masaki Egami , Kenji Ito , Isao Komori
发明人： Kazutoyo Murakami , Masaki Egami , Kenji Ito , Isao Komori
IPC分类号： B29C45/76
CPC分类号： F16C17/107 , F16C43/02 , F16C2370/12
摘要： Provided is a housing for a resin fluid dynamic bearing device in which deterioration with time of a fixing force for another member is mitigated and which can maintain a high bearing performance for a long period of time. The housing formed of a resin composition exhibiting a compression creep amount of 8% or less when a compressive pressure of 80 MPa is applied for 168 hours at an atmosphere temperature of 80° C., provides a sufficient fixing force for the another member fixed with a press-fitting force, for example, a bearing sleeve press-fitted into an inner periphery of the housing even after a long term use. Thus, there is no fear of fixing positions of the another member with respect to the housing being deviated and a high bearing performance is maintained for a long period of time.
摘要翻译：本发明提供一种用于树脂流体动力轴承装置的壳体，其中减轻了另一构件的固定力随时间的劣化，并且能够长期保持较高的轴承性能。当在80℃的气氛温度下施加80MPa的压缩压力168小时时，由表现出8％以下的压缩蠕变量的树脂组合物形成的壳体，为固定在其上的另一构件提供足够的固定力压配合力，例如即使在长期使用后也被压配合到壳体的内周的轴承套筒。因此，不会担心另一构件相对于壳体偏离的位置固定，并且长时间保持较高的轴承性能。

7. 发明授权

US09694567B2 Fluid dynamic bearing apparatus and motor comprising the same 有权
公开(公告)号：US09694567B2
公开(公告)日：2017-07-04
申请号：US14495538
申请日：2014-09-24
申请人： Kazutoyo Murakami , Masaki Egami
发明人： Kazutoyo Murakami , Masaki Egami
IPC分类号： B32B37/14 , F16C17/10 , F16C33/10 , H02K7/08 , B32B37/12
CPC分类号： B32B37/144 , B32B37/12 , B32B2037/1253 , B32B2311/00 , B32B2386/00 , B32B2457/00 , F16C17/107 , F16C33/107 , H02K7/085
摘要： A fluid dynamic bearing apparatus with an increased adhesive strength between a component having an adhesion fixing face and a bracket is provided by appropriately controlling the adhesion gap. Materials for a bracket and a housing are selected so that the value obtained by dividing the linear expansion coefficient of the housing fixed to the inner periphery of the bracket by the linear expansion coefficient of the bracket having a portion for mounting a stator coil of a motor is not lower than 0.5 but not higher than 2.0. An adhesion fixing face formed on the outer periphery of the housing is adhesively fixed to the inner circumferential surface of the bracket with an anaerobic adhesive or an epoxy-based adhesive.

8. 发明授权

US08821024B2 Member for rolling bearing and rolling bearing 有权
标题翻译：滚动轴承和滚动轴承成员
公开(公告)号：US08821024B2
公开(公告)日：2014-09-02
申请号：US12735716
申请日：2009-02-20
申请人： Eiichirou Shimazu , Masaki Egami , Yoshihide Himeno , Kazutoyo Murakami
发明人： Eiichirou Shimazu , Masaki Egami , Yoshihide Himeno , Kazutoyo Murakami
IPC分类号： F16C33/62
CPC分类号： F16C33/62 , F16C33/3856 , F16C33/44 , F16C33/445 , F16C33/7843 , F16C2240/64
摘要： The present invention provides a member for a rolling bearing (1) which is capable of decreasing the amount of carbon dioxide generated from a polymeric member in discarding the rolling bearing, contributing to restraint or prevention of an increase in the concentration of the carbon dioxide in the atmosphere or a decrease of the concentration thereof in the atmosphere, and allows a continuous use temperature to be high and an endurance time to be long and a rolling bearing using the member. The member for the rolling bearing (1) is composed of a molding of a polymeric elastic body or a synthetic resin composition. The member is at least one member selected from among an inner ring (2), an outer ring (3), rolling elements (4), a retainer (5), and a sealing member (6). A raw material derived from a biomass is at least partially used for a producing raw material of a polymeric matrix composing the polymeric elastic body or the synthetic resin composition.
摘要翻译：本发明提供一种用于滚动轴承（1）的构件，其能够减少在丢弃滚动轴承时由聚合物构件产生的二氧化碳的量，有助于约束或防止二氧化碳浓度的增加气氛中的浓度降低，气氛中的浓度降低，能够使连续使用温度高，耐久时间长，使用该构件的滚动轴承。滚动轴承（1）的构件由聚合弹性体或合成树脂组合物的成型体构成。所述构件是从内圈（2），外圈（3），滚动元件（4），保持器（5）和密封构件（6）中选择的至少一个构件。衍生自生物质的原料至少部分地用于构成聚合弹性体或合成树脂组合物的聚合物基质的生产原料。

9. 发明授权

US08267587B2 Housing for fluid lubrication bearing apparatuses 有权
标题翻译：流体润滑轴承装置的外壳
公开(公告)号：US08267587B2
公开(公告)日：2012-09-18
申请号：US11912244
申请日：2006-04-11
申请人： Kazutoyo Murakami , Masaki Egami
发明人： Kazutoyo Murakami , Masaki Egami
IPC分类号： F16C32/06
CPC分类号： H02K7/085 , F16C17/107 , F16C35/02
摘要： A housing for a fluid lubrication bearing apparatus is formed of a resin composition containing polyphenylene sulfide (PPS) as a base resin. The ratio of the base resin to the resin composition is not lower than 40 vol % but not higher than 70 vol %. Moreover, in the composition, an epoxy compound having two or more epoxy groups per molecule of the compound and epoxy value of 0.5 meq/g or more to the resin composition may be added so that the amount of epoxy groups in the resin composition is 8 meq/100 g or more. A carbon fiber may also be added to the resin composition in an amount of not less than 10 vol % but not more than 35 vol %. An inorganic compound may be further added to the resin composition to be the remainder of the resin composition.
摘要翻译：用于流体润滑轴承装置的壳体由含有聚苯硫醚（PPS）作为基础树脂的树脂组合物形成。基础树脂与树脂组合物的比例不低于40体积％但不高于70体积％。此外，在组合物中，可以添加每分子化合物具有两个以上环氧基的环氧化合物和树脂组合物的环氧值为0.5meq / g以上，使树脂组合物中的环氧基的量为8 meq / 100克以上。碳纤维也可以以不低于10体积％但不大于35体积％的量添加到树脂组合物中。另外，可以向树脂组合物中添加无机化合物作为树脂组合物的其余部分。

10. 发明申请

US20090206708A1 FLUID DYNAMIC BEARING APPARATUS AND MOTOR COMPRISING THE SAME 审中-公开
标题翻译：流体动力轴承装置和包括它的电动机
公开(公告)号：US20090206708A1
公开(公告)日：2009-08-20
申请号：US11915490
申请日：2006-04-11
申请人： Kazutoyo Murakami , Masaki Egami
发明人： Kazutoyo Murakami , Masaki Egami
IPC分类号： H02K5/16 , F16C32/06
CPC分类号： B32B37/144 , B32B37/12 , B32B2037/1253 , B32B2311/00 , B32B2386/00 , B32B2457/00 , F16C17/107 , F16C33/107 , H02K7/085
摘要： A fluid dynamic bearing apparatus with an increased adhesive strength between a component having an adhesion fixing face and a bracket is provided by appropriately controlling the adhesion gap.Materials for a bracket 6 and a housing 7 are selected so that the value obtained by dividing the linear expansion coefficient of the housing 7 fixed to the inner periphery of the bracket 6 by the linear expansion coefficient of the bracket 6 having a portion 6b for mounting a stator coil 4 of a motor is not lower than 0.5 but not higher than 2.0. An adhesion fixing face 7e formed on the outer periphery of the housing 7 is adhesively fixed to the inner circumferential surface 6a of the bracket 6 with an anaerobic adhesive or an epoxy-based adhesive.
摘要翻译：通过适当地控制粘合间隙，提供具有粘附固定面和支架的部件之间具有增加的粘合强度的流体动态轴承装置。选择用于支架6和壳体7的材料，使得通过将具有固定在支架6的内周上的壳体7的线膨胀系数除以具有用于安装的部分6b的支架6的线膨胀系数获得的值电机的定子线圈4不小于0.5但不高于2.0。形成在壳体7的外周上的粘合固定面7e用厌氧粘合剂或环氧类粘合剂粘合固定在支架6的内周面6a上。

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