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公开(公告)号：US07448804B2
公开(公告)日：2008-11-11
申请号：US11727226
申请日：2007-03-26
申请人： Fuminori Satoji , Seiji Shimizu , Kenji Ito , Isao Komori , Ryouichi Nakajima
发明人： Fuminori Satoji , Seiji Shimizu , Kenji Ito , Isao Komori , Ryouichi Nakajima
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C2370/12 , H02K5/1675
摘要： The preset invention aims to improve the assembly accuracy and rotation accuracy of a fluid bearing device, and to further reduce the cost thereof. A bearing sleeve is fixed on the inner periphery of a housing. An axial member is supported in a non-contact manner in a radial direction by an oil film formed in a radial bearing gap. The housing made of resin is injection molded with the use of a substrate as an insert part. On the substrate, a control circuit for controlling a polygon scanner motor is mounted.
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公开(公告)号：US07399121B2
公开(公告)日：2008-07-15
申请号：US11727227
申请日：2007-03-26
申请人： Fuminori Satoji , Seiji Shimizu , Kenji Ito , Isao Komori , Ryouichi Nakajima
发明人： Fuminori Satoji , Seiji Shimizu , Kenji Ito , Isao Komori , Ryouichi Nakajima
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C2370/12 , H02K5/1675
摘要： The preset invention aims to improve the assembly accuracy and rotation accuracy of a fluid bearing device, and to further reduce the cost thereof. A bearing sleeve is fixed on the inner periphery of a housing. An axial member is supported in a non-contact manner in a radial direction by an oil film formed in a radial bearing gap. The housing made of resin is injection molded with the use of a substrate as an insert part. On the substrate, a control circuit for controlling a polygon scanner motor is mounted.
摘要翻译： 本发明旨在提高流体轴承装置的组装精度和旋转精度，并进一步降低成本。 轴承套固定在壳体的内周上。 轴向构件通过形成在径向轴承间隙中的油膜以径向方式非接触地支撑。 由树脂制成的壳体通过使用基板作为插入部件进行注射成型。 在基板上安装有用于控制多边形扫描仪马达的控制电路。
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公开(公告)号：US07267484B2
公开(公告)日：2007-09-11
申请号：US10843672
申请日：2004-05-12
申请人： Fuminori Satoji , Seiji Shimizu , Kenji Ito , Isao Komori , Ryouichi Nakajima
发明人： Fuminori Satoji , Seiji Shimizu , Kenji Ito , Isao Komori , Ryouichi Nakajima
IPC分类号： F16C17/10
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C2370/12 , H02K5/1675
摘要： The preset invention aims to improve the assembly accuracy and rotation accuracy of a fluid bearing device, and to further reduce the cost thereof. A bearing sleeve is fixed on the inner periphery of a housing. An axial member is supported in a non-contact manner in a radial direction by an oil film formed in a radial bearing gap. The housing made of resin is injection molded with the use of a substrate as an insert part. On the substrate, a control circuit for controlling a polygon scanner motor is mounted.
摘要翻译： 本发明旨在提高流体轴承装置的组装精度和旋转精度，并进一步降低成本。 轴承套固定在壳体的内周上。 轴向构件通过形成在径向轴承间隙中的油膜以径向方式非接触地支撑。 由树脂制成的壳体通过使用基板作为插入部件进行注射成型。 在基板上安装有用于控制多边形扫描仪马达的控制电路。
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公开(公告)号：US20070104400A1
公开(公告)日：2007-05-10
申请号：US10570144
申请日：2004-10-12
申请人： Kenji Ito , Ryouichi Nakajima
发明人： Kenji Ito , Ryouichi Nakajima
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C2370/12
摘要： It is an object to improve bearing rigidity in a thrust direction at high temperatures and reduce a torque at low temperatures. An axial member 2 is arranged in such a manner that an outer circumferential surface of an axial part 2a is opposed to an inner circumferential surface of a bearing sleeve with a radial bearing gap interposed therebetween, and both end faces 2b1 and 2b2 of a flange part 2b are opposed to one end face of the bearing sleeve and a bottom face of a housing with thrust bearing gaps interposed therebetween, respectively. In this manner, the axial member 2 is supported by dynamic pressures generated in the respective bearing gaps in the thrust direction in a non-contact manner. The flange part of the axial member 2 is formed of a resin in such a manner that its linear expansion coefficient in its axial direction is equal to or larger than that of the housing 7.
摘要翻译： 本发明的目的是在高温下提高推力方向的轴承刚性并降低低温下的转矩。 轴向构件2以轴向部分2a的外周面与轴承套筒的内周面相对的方式配置，其中径向轴承间隙插入其中，并且两个端面2b 1和2b 凸缘部分2b的两个分别与轴承套筒的一个端面和一个具有止推轴承间隙的壳体的底面相对。 以这种方式，轴向构件2以不接触的方式在推力方向上在相应的轴承间隙中产生的动压力支撑。 轴向构件2的凸缘部由树脂形成，使得其轴向的线膨胀系数等于或大于壳体7的线膨胀系数。
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公开(公告)号：US07591591B2
公开(公告)日：2009-09-22
申请号：US10570144
申请日：2004-10-12
申请人： Kenji Ito , Ryouichi Nakajima
发明人： Kenji Ito , Ryouichi Nakajima
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C2370/12
摘要： It is an object to improve bearing rigidity in a thrust direction at high temperatures and reduce a torque at low temperatures. An axial member is arranged in such a manner that an outer circumferential surface of an axial part is opposed to an inner circumferential surface of a bearing sleeve with a radial bearing gap interposed therebetween, and both end faces of a flange part are opposed to one end face of the bearing sleeve and a bottom face of a housing with thrust bearing gaps interposed therebetween, respectively. In this manner, the axial member is supported by dynamic pressures generated in the respective bearing gaps in the thrust direction in a non-contact manner. The flange part of the axial member is formed of a resin in such a manner that its linear expansion coefficient in its axial direction is equal to or larger than that of the housing.
摘要翻译： 本发明的目的是在高温下提高推力方向的轴承刚性并降低低温下的转矩。 轴向构件以轴向部分的外周面与轴承套筒的内周面相对的方式配置，其间插入径向轴承间隙，凸缘部的两端面与一端 轴承套的表面和分别具有推力轴承间隙的壳体的底面。 以这种方式，轴向构件以非接触的方式在推力方向上在相应的轴承间隙中产生的动压力支撑。 轴向构件的凸缘部由树脂形成，使得其轴向的线膨胀系数等于或大于壳体的线膨胀系数。
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6.发明授权公开(公告)号：US07005768B2
公开(公告)日：2006-02-28
申请号：US10705241
申请日：2003-11-12
CPC分类号： F16C33/107 , F16C17/107 , F16C17/26 , F16C33/104 , F16C33/74 , F16C2370/12 , G11B19/2009
摘要： A securing surface of a housing comprises a deformation region, which deforms radially outward by a predetermined quantity during press fitting of a thrust member, and another region. The deformation region has a tapered shape that gradually reduces in diameter in the downward direction, and is receded radially inward relative to the other region of the securing surface, by an amount equivalent to the amount of outward deformation thereof during press fitting. When the thrust member is press fitted into the inner periphery of a press fitting portion of the housing, the securing surface of the housing becomes substantially straight along entire axial region L thereof.
摘要翻译： 壳体的固定表面包括变形区域，其在推压构件的压配合期间和另一区域的径向向外变形预定量。 变形区域具有在向下方向上直径逐渐减小的锥形形状，并且相对于固定面的其他区域径向向内退出与压配合期间的向外变形量相当的量。 当将推力构件压配合到壳体的压配合部分的内周中时，壳体的固定表面沿其整个轴向区域L基本上是直的。
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公开(公告)号：US08002471B2
公开(公告)日：2011-08-23
申请号：US12754100
申请日：2010-04-05
申请人： Fuminori Satoji , Ryouichi Nakajima , Isao Komori , Kazuo Okamura , Masafumi Okuma , Kenichi Mitani
发明人： Fuminori Satoji , Ryouichi Nakajima , Isao Komori , Kazuo Okamura , Masafumi Okuma , Kenichi Mitani
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , F16C2370/12 , H02K5/163 , H02K5/1675
摘要： Assembly precision in a motor is improved and greater cost reduction is achieved.A fluid dynamic bearing apparatus 1 comprising a housing 7 and bearing sleeve 8 as fixed-side members 2, a shaft member 9 as a rotational-side member 3 having a portion 3c for mounting a rotor magnet 5, and a disk hub 10, the shaft member 9 being supported by the bearing sleeve 8 in the radial direction in a non-contact manner by the hydrodynamic effect of a lubricating oil produced in a radial bearing gap between the inner circumferential surface 8a of the bearing sleeve 8 and the outer circumferential surface 9a of the shaft member while the shaft member 9 is in rotation, the apparatus 1 comprising a disk hub 10 which is fixed on the shaft member 9 and has a portion 3c for mounting the rotor magnet 5, and the disk hub 10 being a molded resin article formed by insert-molding using the shaft member 9 as an insert piece.
摘要翻译： 电机的组装精度得到提高，降低了成本。 一种流体动力轴承装置1，其包括壳体7和作为固定侧构件2的轴承套筒8，作为具有用于安装转子磁体5的部分3c的旋转侧构件3的轴构件9和盘毂10， 轴构件9通过在轴承套筒8的内周面8a与外周面之间的径向轴承间隙中产生的润滑油的流体动力学作用以非接触的方式在径向方向上被轴承套筒8支撑 在轴构件9旋转的同时，装置1包括固定在轴构件9上并具有用于安装转子磁体5的部分3c的盘毂10，并且盘毂10是模制的 树脂制品通过使用轴构件9作为插入件插入成型而形成。
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公开(公告)号：US07938583B2
公开(公告)日：2011-05-10
申请号：US11783696
申请日：2007-04-11
申请人： Hideaki Tanaka , Ryouichi Nakajima
发明人： Hideaki Tanaka , Ryouichi Nakajima
CPC分类号： F16C33/6688 , F16C33/44 , F16C33/6633 , Y10S384/907
摘要： A rolling bearing made of stainless steel for use in conditions where hydrofluoric acid or fluorine grease is present can prevent boundary lubrication due to the invasion of metal corrosion powder into rolling surface of the bearing, and thus prevent the rapid advance of internal wear. The rolling bearing is highly durable and has a long life even if used in metal corrosive environments. A deep-groove rolling bearing includes bearing rings (inner ring and outer ring), rolling elements, and a retainer all made of stainless steel, and solidified lubricating oil sealed in the rolling bearing. The solidified lubricating oil is made by heat curing a mixture of lubricating oil or grease containing perfluoropolyether and a thermoplastic resin. Contact seals made of fluorine rubber seal the solidified lubricating oil. Even if metal abrasion powder is produced by effect of perfluoropolyether or hydrofluoric acid, it will be held embedded in the solidified lubricating oil, so that abnormal wear will not occur.
摘要翻译： 用于存在氢氟酸或氟油脂的条件的不锈钢滚动轴承可以防止金属腐蚀粉末侵入轴承滚动面的边界润滑，从而防止内部磨损的快速进展。 滚动轴承高度耐用，即使用于金属腐蚀环境，寿命长。 深沟滚动轴承包括轴承环（内圈和外圈），滚动元件和全部由不锈钢制成的保持架，以及密封在滚动轴承中的固化润滑油。 固化润滑油是通过加热固化含有全氟聚醚和热塑性树脂的润滑油或油脂的混合物制成的。 接触密封由氟橡胶密封固化润滑油。 即使通过全氟聚醚或氢氟酸的作用产生金属磨损粉末，也将其保持在固化的润滑油中，从而不会发生异常磨损。
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公开(公告)号：US07819585B2
公开(公告)日：2010-10-26
申请号：US11587535
申请日：2005-05-16
申请人： Fuminori Satoji , Ryouichi Nakajima , Isao Komori , Kazuo Okamura , Masafumi Okuma , Kenichi Mitani
发明人： Fuminori Satoji , Ryouichi Nakajima , Isao Komori , Kazuo Okamura , Masafumi Okuma , Kenichi Mitani
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , F16C2370/12 , H02K5/163 , H02K5/1675
摘要： Assembly precision in a motor is improved and greater cost reduction is achieved. A fluid dynamic bearing apparatus includes a housing and bearing sleeve as fixed-side members, a shaft member as a rotational-side member having a portion for mounting a rotor magnet, and a disk hub. The shaft member is supported by the bearing sleeve in the radial direction in a non-contact manner by the hydrodynamic effect of a lubricating oil produced in a radial bearing gap between the inner circumferential surface of the bearing sleeve and the outer circumferential surface 9 of the shaft member while the shaft member is in rotation. The apparatus includes a disk hub which is fixed on the shaft member and has a portion for mounting the rotor magnet, and the disk hub is a molded resin article formed by insert-molding using the shaft member as an insert piece.
摘要翻译： 电机的组装精度得到提高，降低了成本。 流体动力轴承装置包括作为固定侧构件的壳体和轴承套筒，具有用于安装转子磁体的部分的旋转侧构件的轴构件和盘毂。 轴构件通过在轴承套的内周面和轴承套的内周面9之间的径向轴承间隙中产生的润滑油的流体动力学效应以非接触的方式以轴向套筒的径向方式被支撑。 轴构件旋转。 该装置包括固定在轴构件上并具有用于安装转子磁体的部分的盘毂，并且盘毂是通过使用轴构件作为插入件的嵌入成型形成的模制树脂制品。
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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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