公开(公告)号：US20080137229A1

公开(公告)日：2008-06-12

申请号：US11948432

申请日：2007-11-30

申请人： Junichi Nakamura ,  Kaoru Uenosono ,  Toshifumi Hino

发明人： Junichi Nakamura ,  Kaoru Uenosono ,  Toshifumi Hino

IPC分类号： F16C32/06 ,  H02K7/08 ,  G11B17/02

CPC分类号： H02K7/085 ,  F16C17/10 ,  F16C33/1045 ,  F16C33/1075 ,  F16C2370/12

摘要： A hydrodynamic bearing device which can enhance operating efficiency of a step of filling a lubricant and also effectively suppress leakage of the lubricant to an outer peripheral portion of the hydrodynamic bearing device; a spindle motor including the same; and an information recording and reproducing apparatus are providedA hydrodynamic bearing device includes a sleeve, a shaft, a lubricant, a plurality of lube repellent application areas, and a lube repellent non-application area. The sleeve has an insertion hole as a bearing hole on at least one end. The shaft is inserted into the insertion hole of the sleeve and is supported so as to be relatively rotatable with respect to the sleeve. The lubricant is interposed in a clearance between the sleeve and the shaft. The plurality of lube repellent application areas are formed into a circular pattern with the shaft being a substantial center on at positions outside the insertion hole of an open upper surface of the sleeve in a radial direction of the shaft. The lube repellent non-application area is formed between two of the lube repellent application areas which are adjacent to each other.

摘要翻译： 一种流体动力轴承装置，其可以提高填充润滑剂的步骤的操作效率，并且还有效地抑制润滑剂泄漏到流体动力轴承装置的外周部分; 包括其的主轴电动机; 并提供信息记录和再现装置。流体动力轴承装置包括套筒，轴，润滑剂，多个润滑剂驱避应用区域和润滑剂驱避剂非涂覆区域。 套筒在至少一端具有作为轴承孔的插入孔。 轴被插入到套筒的插入孔中并且被支撑成相对于套筒可相对旋转。 润滑剂插入在套筒和轴之间的间隙中。 多个润滑剂驱避应用区域形成为圆形图案，其中该轴在轴的径向方向上位于套筒的敞开的上表面的插入孔的外侧的大致中心处。 润滑剂驱避剂不施加区域形成在彼此相邻的两个润滑剂驱避应用区域之间。

公开(公告)号：US20080298731A1

公开(公告)日：2008-12-04

申请号：US12128447

申请日：2008-05-28

申请人： Toshifumi Hino ,  Nobuhiko Sato

发明人： Toshifumi Hino ,  Nobuhiko Sato

IPC分类号： F16C32/06

CPC分类号： F16C33/1085 ,  F16C17/107 ,  F16C2370/12

摘要： A hydrodynamic bearing device 30 comprises a sleeve 32 having a bearing hole 32d, a shaft 31, and a flange cover 33. The shaft 31 is disposed in the bearing hole 32d of the sleeve in a state of being capable of relative rotation, and has a large diameter flange portion 31b. The flange cover 33 is disposed opposite the bottom surface of the flange portion 31b. A bubble suppression portion 36, which is formed as a recess on the bottom surface of the shaft 31, communicates with the upper surface of the flange portion 31b through a communicating hole 31e in the flange portion 31b. This provides a hydrodynamic bearing device with which negative pressure is prevented from being generated in the bearing even when it is subjected to impact or vibration, and durability and reliability can be enhanced, as well as a spindle motor and a recording and reproducing apparatus equipped with this hydrodynamic bearing device.

摘要翻译： 流体动力轴承装置30包括具有轴承孔32d，轴31和凸缘盖33的套筒32.轴31以能够相对旋转的状态设置在套筒的轴承孔32d中，并且具有 大直径凸缘部31b。 凸缘盖33与凸缘部分31b的底表面相对设置。 形成为轴31的底面上的凹部的气泡抑制部36通过凸缘部31b中的连通孔31e与凸缘部31b的上表面连通。 这提供了一种流体动力轴承装置，其即使在受到冲击或振动的情况下也能够防止在轴承中产生负压，并且可以提高耐久性和可靠性，以及配备有主轴电机和记录和再现装置 该流体动力轴承装置。

公开(公告)号：US20080204929A1

公开(公告)日：2008-08-28

申请号：US12031099

申请日：2008-02-14

申请人： Shoji Masazuki ,  Toshifumi Hino ,  Kenichi Yano ,  Nobuhiko Sato

发明人： Shoji Masazuki ,  Toshifumi Hino ,  Kenichi Yano ,  Nobuhiko Sato

IPC分类号： G11B5/33 ,  F16C32/06 ,  H02K7/08

CPC分类号： G06G7/14 ,  F16C17/107 ,  F16C33/14 ,  F16C2220/70 ,  F16C2223/04 ,  F16C2223/80

摘要： An object of the present invention is to provide a method of manufacturing a fluid dynamic bearing device and a bearing part for a thrust bearing, both of which are applied to a flat and thin bearing part and are capable of preventing abrasion and scratching even if two parts make contact with each other. A fluid dynamic bearing mechanism 40 includes a shaft 1 functioning as an axis of rotational, a sleeve, a flange 3, a thrust plate 4, and a thrust bearing portion 22. The sleeve is disposed on the outer peripheral side of the shaft. The flange is disposed in the vicinity of the end portion of the shaft, and includes a bottom surface 3c perpendicular to a central axis direction of the shaft. A thrust receiver includes a front surface 4a opposed to the bottom surface. The thrust bearing portion is formed between the bottom surface and the front surface, and includes a plurality of thrust dynamic generation grooves 3a formed on the bottom surface. Particulates with hardness higher than that of the top surface are diffused and disposed on the bottom surface, and are then implanted in the bottom surface by applying pressure such that a portion of the particulates extends therefrom.

摘要翻译： 本发明的目的是提供一种用于制造流体动力轴承装置的方法和用于推力轴承的轴承部件，两者都被应用于平坦且薄的轴承部件，并且即使两个轴承部件也能够防止磨损和划伤 零件互相接触。 流体动力轴承机构40包括用作旋转轴线的轴1，套筒，凸缘3，止推板4和止推轴承部分22。 套筒设置在轴的外周侧。 凸缘设置在轴的端部附近，并且包括垂直于轴的中心轴线方向的底面3c。 推力接收器包括与底表面相对的前表面4a。 止推轴承部分形成在底表面和前表面之间，并且包括形成在底表面上的多个推力动力产生槽3a。 硬度高于上表面的颗粒被扩散并设置在底表面上，然后通过施加压力使得一部分微粒从其延伸而被植入到底表面中。

公开(公告)号：US06698931B2

公开(公告)日：2004-03-02

申请号：US09959350

申请日：2001-10-24

申请人： Toshifumi Hino

发明人： Toshifumi Hino

IPC分类号： F16C3206

CPC分类号： F16C33/74 ,  F16C17/026 ,  F16C33/107 ,  H02K5/1677 ,  H02K7/086

摘要： The present invention relates to a dynamic pressure-type liquid bearing unit which can prevent lubricating oil from flowing outside by discharging air that is trapped in the bearing. A sleeve and a thrust plate that is attached to one end side of the sleeve sandwich a thrust bearing leaving a gap around the thrust bearing. Unsymmetrical herringbone-shaped dynamic pressure-generating grooves are formed on at least one of the outer circumferential surface of the stationary shaft and the inner circumferential surface of the sleeve. A first capillary sealing portion is formed between one end of the stationary shaft and the sleeve, and a second capillary sealing portion is formed between the other end of the stationary shaft and the thrust plate. Groove portions for removing air are formed between the first capillary sealing portion and the second capillary sealing portion.

摘要翻译： 动压式液体承载单元技术领域本发明涉及一种动态压力型液体轴承单元，其可以通过排出被捕获在轴承中的空气来防止润滑油流出外部。 连接到套筒的一端侧的套筒和推力板夹着推力轴承，在止推轴承周围留有间隙。 在固定轴的外周面和套筒的内周面中的至少一个上形成有非对称的人字形动态压力产生槽。 第一毛细管密封部分形成在固定轴的一端和套筒之间，第二毛细管密封部分形成在固定轴的另一端和止推板之间。 在第一毛细管密封部分和第二毛细管密封部分之间形成用于除去空气的槽部。

公开(公告)号：US20080279493A1

公开(公告)日：2008-11-13

申请号：US12111058

申请日：2008-04-28

申请人： Shouji MASAZUKI ,  Toshifumi Hino

发明人： Shouji MASAZUKI ,  Toshifumi Hino

IPC分类号： F16C32/06 ,  H02K7/08

CPC分类号： H02K7/085 ,  F16C17/107 ,  F16C33/1085 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2018

摘要： A bearing component 7 comprises a sleeve 2 having a bearing hole 2a in which a shaft 1 is inserted, a communicating hole 6 formed in the sleeve 2, a lubricant 20 held in the gap between the shaft 1 and the sleeve 2, for example, an inner peripheral seal portion 12 that holds the lubricant 20 in the bearing component 7, and a flow suppressing wall 30 formed between the communicating hole 6 and the inner peripheral seal portion 12. The flow suppressing wall 30 impedes the flow of the lubricant 20 toward the inner peripheral seal portion 12, and disperses it in the circumferential direction.

摘要翻译： 轴承部件7包括具有插入轴1的轴承孔2a的套筒2，形成在套筒2中的连通孔6，保持在轴1和套筒2之间的间隙中的润滑剂20，例如 ，将润滑剂20保持在轴承部件7中的内周密封部12和形成在连通孔6和内周密封部12之间的流动抑制壁30。 流动抑制壁30阻止润滑剂20朝向内周密封部12的流动，并使其沿圆周方向分散。

公开(公告)号：US07972065B2

公开(公告)日：2011-07-05

申请号：US12128447

申请日：2008-05-28

申请人： Toshifumi Hino ,  Nobuhiko Sato

发明人： Toshifumi Hino ,  Nobuhiko Sato

IPC分类号： F16C32/06

CPC分类号： F16C33/1085 ,  F16C17/107 ,  F16C2370/12

摘要： A hydrodynamic bearing device includes a sleeve having a bearing hole, a shaft, and a flange cover. The shaft is disposed in the bearing hole of the sleeve in a state of being capable of relative rotation, and has a large diameter flange portion. The flange cover is disposed opposite the bottom surface of the flange portion. A bubble suppression portion, which is formed as a recess on the bottom surface of the shaft, communicates with the upper surface of the flange portion through a communicating hole in the flange portion. This provides a hydrodynamic bearing device with which negative pressure is prevented from being generated in the bearing even when it is subjected to impact or vibration, and durability and reliability can be enhanced, as well as a spindle motor and a recording and reproducing apparatus equipped with this hydrodynamic bearing device.

摘要翻译： 流体动力轴承装置包括具有轴承孔，轴和凸缘盖的套筒。 轴以能够相对旋转的状态设置在套筒的轴承孔中，并且具有大直径的凸缘部。 凸缘盖与凸缘部分的底面相对设置。 形成为轴的底面上的凹部的气泡抑制部通过凸缘部的连通孔与凸缘部的上表面连通。 这提供了一种流体动力轴承装置，其即使在受到冲击或振动的情况下也能够防止在轴承中产生负压，并且可以提高耐久性和可靠性，以及配备有主轴电机和记录和再现装置 该流体动力轴承装置。

公开(公告)号：US07854552B2

公开(公告)日：2010-12-21

申请号：US12024502

申请日：2008-02-01

申请人： Toshifumi Hino ,  Nobuhiko Sato

发明人： Toshifumi Hino ,  Nobuhiko Sato

IPC分类号： F16C32/06

CPC分类号： F16C17/107 ,  F16C33/1085 ,  F16C33/74

摘要： A hydrodynamic bearing device comprises a sleeve, a shaft, and a flange cover. The sleeve has a bearing hole and a communicating hole which communicates between both end faces. The shaft is disposed in a state of being capable of relative rotation in the bearing hole of the sleeve, and has a main portion, a flange that is larger in diameter than the main portion, and a communicating hole that communicates with both end faces of the flange. The flange cover is disposed opposing to the lower face of the flange. The pressure loss at the communicating hole is smaller than the pressure loss at the communicating hole.

摘要翻译： 流体动力轴承装置包括套筒，轴和凸缘盖。 套筒具有轴承孔和在两个端面之间连通的连通孔。 所述轴设置成能够在所述套筒的轴承孔中相对旋转的状态，并且具有主要部分，直径大于所述主要部分的凸缘，以及与所述主体部分的两个端面连通的连通孔 法兰。 凸缘盖与凸缘的下表面相对设置。 连通孔处的压力损失小于连通孔处的压力损失。

公开(公告)号：US07812489B2

公开(公告)日：2010-10-12

申请号：US12030272

申请日：2008-02-13

申请人： Toshifumi Hino ,  Nobuhiko Sato

发明人： Toshifumi Hino ,  Nobuhiko Sato

IPC分类号： H02K5/22 ,  H02K3/50

CPC分类号： H05K3/445 ,  H02K3/522 ,  H02K5/225 ,  H02K11/33 ,  H05K3/0061 ,  H05K3/306 ,  H05K3/3421 ,  H05K2201/09081 ,  H05K2201/091 ,  H05K2201/0949 ,  H05K2201/10287

摘要： The present invention provides a motor that enables a lead of a coil to be appropriately led through holes, while allowing the lead of the coil to be fixed without contacting a wall surface of the hole in a base. Cuts 14b are formed in an insulating sheet or a printed circuit board 14; the cuts 14b extend substantially radially or spirally from a lead lead-out portion 14a as a center. Thus, even if an end of the lead 7a abuts against an area located outside the lead lead-out portion 14a, the abutting area and a nearby area located in the vicinity of the abutting area are pushed open along the cuts 14b extending from the lead lead-out portion 14a and guide the end of the lead 7a toward the lead lead-out portion 14a. The end of the lead 7a is thus appropriately guided into the lead lead-out portion 14a.

摘要翻译： 本发明提供一种电动机，其能够使线圈的引线适当地引导通孔，同时允许线圈的引线固定而不接触基座中的孔的壁表面。 切屑14b形成在绝缘片或印刷电路板14中; 切口14b从作为中心的引出引出部分14a基本上径向或螺旋地延伸。 因此，即使引线7a的端部与引线引出部分14a的外侧的区域抵接，位于邻接区域附近的邻接区域和附近区域也沿着从引线延伸的切口14b被推开 引出部分14a并且引导引线7a的端部朝向引线引出部分14a。 引线7a的端部被适当地引导到引出引出部分14a中。

公开(公告)号：US20080218010A1

公开(公告)日：2008-09-11

申请号：US12030272

申请日：2008-02-13

申请人： Toshifumi Hino ,  Nobuhiko Sato

发明人： Toshifumi Hino ,  Nobuhiko Sato

IPC分类号： H02K11/00

CPC分类号： H05K3/445 ,  H02K3/522 ,  H02K5/225 ,  H02K11/33 ,  H05K3/0061 ,  H05K3/306 ,  H05K3/3421 ,  H05K2201/09081 ,  H05K2201/091 ,  H05K2201/0949 ,  H05K2201/10287

摘要： The present invention provides a motor that enables a lead of a coil to be appropriately led through holes, while allowing the lead of the coil to be fixed without contacting a wall surface of the hole in a base. Cuts 14b are formed in an insulating sheet or a printed circuit board 14; the cuts 14b extend substantially radially or spirally from a lead lead-out portion 14a as a center. Thus, even if an end of the lead 7a abuts against an area located outside the lead lead-out portion 14a, the abutting area and a nearby area located in the vicinity of the abutting area are pushed open along the cuts 14b extending from the lead lead-out portion 14a and guide the end of the lead 7a toward the lead lead-out portion 14a. The end of the lead 7a is thus appropriately guided into the lead lead-out portion 14a.

摘要翻译： 本发明提供一种电动机，其能够使线圈的引线适当地引导通孔，同时允许线圈的引线固定而不接触基座中的孔的壁表面。 切口14b形成在绝缘片或印刷电路板14中; 切口14b从作为中心的引线引出部分14a基本上径向或螺旋地延伸。 因此，即使引线7a的一端与位于引出引出部分14a外部的区域邻接，位于邻接区域附近的邻接区域和附近区域沿着延伸的切口14b被推开 从引出引出部分14a引导引线7a的端部朝向引出引出部分14a。 引线7a的端部被适当地引导到引出引出部分14a中。