公开(公告)号：US20070227005A1

公开(公告)日：2007-10-04

申请号：US11730248

申请日：2007-03-30

申请人： Takehito Tamaoka ,  Masato Gomyo

发明人： Takehito Tamaoka ,  Masato Gomyo

IPC分类号： B21D53/10

CPC分类号： F16C17/107 ,  B22F5/106 ,  B22F2998/10 ,  F16C17/045 ,  F16C33/12 ,  F16C33/14 ,  F16C2220/20 ,  F16C2220/60 ,  F16C2220/82 ,  F16C2223/32 ,  F16C2226/10 ,  F16C2226/32 ,  F16C2370/12 ,  Y10T29/49636 ,  Y10T29/49645 ,  B22F3/225 ,  B22F3/10

摘要： A sleeve has a thrust dynamic pressure generating groove arrangement for generating a dynamic pressure in a thrust direction between another member and the sleeve. The sleeve is formed in the following manner. First, a mold is prepared which is provided with a portion corresponding to the thrust dynamic pressure generating groove arrangement. Injection molding is carried out by using this mold and material containing binders and metal particulates, thereby forming a work-in-process piece having the thrust dynamic pressure groove arrangement in a cavity of the mold. Then, binders in the work-in-process piece are removed by heating, and thereafter metal particulates in the work-in-process piece are sintered.

摘要翻译： 套筒具有用于在另一构件和套筒之间的推力方向上产生动压的推力动压产生槽装置。 套筒以下列方式形成。 首先，准备设置有与推力动压生成槽配置对应的部分的模具。 通过使用该模具和含有粘合剂和金属微粒的材料进行注射成型，从而在模具的空腔中形成具有推力动压槽布置的加工件。 然后，通过加热除去在制品中的粘合剂，然后烧结在加工件中的金属微粒。

公开(公告)号：US07650697B2

公开(公告)日：2010-01-26

申请号：US10908191

申请日：2005-05-02

申请人： Masato Gomyo ,  Takehito Tamaoka

发明人： Masato Gomyo ,  Takehito Tamaoka

IPC分类号： B21D53/10 ,  B21K1/10 ,  B23P17/00 ,  H02K5/16 ,  F16C32/06 ,  F16C33/74

CPC分类号： G11B19/2018 ,  F16C17/107 ,  F16C33/103 ,  F16C33/745 ,  F16C2202/60 ,  F16C2370/12 ,  H02K5/1675 ,  H02K5/1677 ,  H02K7/085 ,  H02K7/086 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49696 ,  Y10T29/49705

摘要： In spindle motors journaled on fluid-dynamic-pressure bearings, especially in such spindle motors employed in recording-disk drives in implementations that subject the drives to vibration and shock, sealing performance of a capillary seal formed between motor rotor-side and stator-side bearing surfaces, cohesiveness of oil-repellant on rotor-side/stator-side dry-area surfaces adjoining the capillary seal section, and motor inter-component adhesive strength are improved. The capillary-seal-constituting rotor-side/stator-side surface(s) are exposed to a plasma or to ultraviolet rays under predetermined conditions to improve the wettability of the surface(s) for the bearing fluid. The dry-area surface(s) are similarly irradiated so as to improve their wettability for the oil-repellant. Adhesively bonded component surfaces are likewise irradiated so as to improve their wettability for the adhesive, enhancing adhesive strength. Exposed surfaces may be constituted of a synthetic resin to enhance their wettability further, or may be made of metal, to yield a cleaning efficacy from the plasma/UV exposure.

摘要翻译： 在流体动压轴承中记录的主轴电机中，特别是在驱动器受振动和冲击的实施中用于记录磁盘驱动器的这种主轴电机中，形成在电动机转子侧和定子侧之间的毛细管密封件的密封性能 轴承表面，与毛细管密封部分相邻的转子侧/定子侧干燥区域表面上的防油剂的粘合性以及电动机部件间粘合强度提高。 毛细管密封构成的转子侧/定子侧表面在预定条件下暴露于等离子体或紫外线，以改善轴承流体表面的润湿性。 类似地照射干燥区域表面以改善其对拒油剂的润湿性。 粘合组分表面同样被照射，以提高其对粘合剂的润湿性，提高粘合强度。 露出的表面可以由合成树脂构成，以进一步增强其润湿性，或者可以由金属制成，从而产生从等离子体/ UV暴露的清洁效果。

公开(公告)号：US08087156B2

公开(公告)日：2012-01-03

申请号：US12632051

申请日：2009-12-07

申请人： Masato Gomyo ,  Takehito Tamaoka

发明人： Masato Gomyo ,  Takehito Tamaoka

IPC分类号： B21D53/10 ,  H02K15/00 ,  H02K21/12 ,  G11B5/127

CPC分类号： G11B19/2018 ,  F16C17/107 ,  F16C33/103 ,  F16C33/745 ,  F16C2202/60 ,  F16C2370/12 ,  H02K5/1675 ,  H02K5/1677 ,  H02K7/085 ,  H02K7/086 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49696 ,  Y10T29/49705

摘要： In spindle motors journaled on fluid-dynamic-pressure bearings, especially in such spindle motors employed in recording-disk drives in implementations that subject the drives to vibration and shock, sealing performance of a capillary seal formed between motor rotor-side and stator-side bearing surfaces, cohesiveness of oil-repellant on rotor-side/stator-side dry-area surfaces adjoining the capillary seal section, and motor inter-component adhesive strength are improved. The capillary-seal-constituting rotor-side/stator-side surface(s) are exposed to a plasma or to ultraviolet rays under predetermined conditions to improve the wettability of the surface(s) for the bearing fluid. The dry-area surface(s) are similarly irradiated so as to improve their wettability for the oil-repellant. Adhesively bonded component surfaces are likewise irradiated so as to improve their wettability for the adhesive, enhancing adhesive strength. Exposed surfaces may be constituted of a synthetic resin to enhance their wettability further, or may be made of metal, to yield a cleaning efficacy from the plasma/UV exposure.

摘要翻译： 在流体动压轴承中记录的主轴电机中，特别是在驱动器受振动和冲击的实施中用于记录磁盘驱动器的这种主轴电机中，形成在电动机转子侧和定子侧之间的毛细管密封件的密封性能 轴承表面，与毛细管密封部分相邻的转子侧/定子侧干燥区域表面上的防油剂的粘合性以及电动机部件间粘合强度提高。 毛细管密封构成的转子侧/定子侧表面在预定条件下暴露于等离子体或紫外线，以改善轴承流体表面的润湿性。 类似地照射干燥区域表面以改善其对拒油剂的润湿性。 粘合组分表面同样被照射，以提高其对粘合剂的润湿性，提高粘合强度。 露出的表面可以由合成树脂构成，以进一步增强其润湿性，或者可以由金属制成，从而产生从等离子体/ UV暴露的清洁效果。

公开(公告)号：US20100085662A1

公开(公告)日：2010-04-08

申请号：US12632051

申请日：2009-12-07

申请人： Masato Gomyo ,  Takehito Tamaoka

发明人： Masato Gomyo ,  Takehito Tamaoka

IPC分类号： G11B17/02 ,  H02K15/00

CPC分类号： G11B19/2018 ,  F16C17/107 ,  F16C33/103 ,  F16C33/745 ,  F16C2202/60 ,  F16C2370/12 ,  H02K5/1675 ,  H02K5/1677 ,  H02K7/085 ,  H02K7/086 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49696 ,  Y10T29/49705

摘要： In spindle motors journaled on fluid-dynamic-pressure bearings, especially in such spindle motors employed in recording-disk drives in implementations that subject the drives to vibration and shock, sealing performance of a capillary seal formed between motor rotor-side and stator-side bearing surfaces, cohesiveness of oil-repellant on rotor-side/stator-side dry-area surfaces adjoining the capillary seal section, and motor inter-component adhesive strength are improved. The capillary-seal-constituting rotor-side/stator-side surface(s) are exposed to a plasma or to ultraviolet rays under predetermined conditions to improve the wettability of the surface(s) for the bearing fluid. The dry-area surface(s) are similarly irradiated so as to improve their wettability for the oil-repellant. Adhesively bonded component surfaces are likewise irradiated so as to improve their wettability for the adhesive, enhancing adhesive strength. Exposed surfaces may be constituted of a synthetic resin to enhance their wettability further, or may be made of metal, to yield a cleaning efficacy from the plasma/UV exposure.

摘要翻译： 在流体动压轴承中记录的主轴电机中，特别是在驱动器受振动和冲击的实施中用于记录磁盘驱动器的这种主轴电机中，形成在电动机转子侧和定子侧之间的毛细管密封件的密封性能 轴承表面，与毛细管密封部分相邻的转子侧/定子侧干燥区域表面上的防油剂的粘合性以及电动机部件间粘合强度提高。 毛细管密封构成的转子侧/定子侧表面在预定条件下暴露于等离子体或紫外线，以改善轴承流体表面的润湿性。 类似地照射干燥区域表面以改善其对拒油剂的润湿性。 粘合组分表面同样被照射，以提高其对粘合剂的润湿性，提高粘合强度。 露出的表面可以由合成树脂构成，以进一步增强其润湿性，或者可以由金属制成，从而产生从等离子体/ UV暴露的清洁效果。

公开(公告)号：US20050274018A1

公开(公告)日：2005-12-15

申请号：US10908191

申请日：2005-05-02

申请人： Masato Gomyo ,  Takehito Tamaoka

发明人： Masato Gomyo ,  Takehito Tamaoka

IPC分类号： F16C32/06 ,  F16C33/10 ,  F16C33/74 ,  G11B19/20 ,  H02K1/00 ,  H02K5/167 ,  H02K7/08

CPC分类号： G11B19/2018 ,  F16C17/107 ,  F16C33/103 ,  F16C33/745 ,  F16C2202/60 ,  F16C2370/12 ,  H02K5/1675 ,  H02K5/1677 ,  H02K7/085 ,  H02K7/086 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49696 ,  Y10T29/49705

摘要： In spindle motors journaled on fluid-dynamic-pressure bearings, especially in such spindle motors employed in recording-disk drives in implementations that subject the drives to vibration and shock, sealing performance of a capillary seal formed between motor rotor-side and stator-side bearing surfaces, cohesiveness of oil-repellant on rotor-side/stator-side dry-area surfaces adjoining the capillary seal section, and motor inter-component adhesive strength are improved. The capillary-seal-constituting rotor-side/stator-side surface(s) are exposed to a plasma or to ultraviolet rays under predetermined conditions to improve the wettability of the surface(s) for the bearing fluid. The dry-area surface(s) are similarly irradiated so as to improve their wettability for the oil-repellant. Adhesively bonded component surfaces are likewise irradiated so as to improve their wettability for the adhesive, enhancing adhesive strength. Exposed surfaces may be constituted of a synthetic resin to enhance their wettability further, or may be made of metal, to yield a cleaning efficacy from the plasma/UV exposure.

摘要翻译： 在流体动压轴承中记录的主轴电机中，特别是在驱动器受振动和冲击的实施中用于记录磁盘驱动器的这种主轴电机中，形成在电动机转子侧和定子侧之间的毛细管密封件的密封性能 轴承表面，与毛细管密封部分相邻的转子侧/定子侧干燥区域表面上的防油剂的粘合性以及电动机部件间粘合强度提高。 毛细管密封构成的转子侧/定子侧表面在预定条件下暴露于等离子体或紫外线，以改善轴承流体表面的润湿性。 类似地照射干燥区域表面以改善其对拒油剂的润湿性。 粘合组分表面同样被照射，以提高其对粘合剂的润湿性，提高粘合强度。 露出的表面可以由合成树脂构成，以进一步增强其润湿性，或者可以由金属制成，从而产生从等离子体/ UV暴露的清洁效果。

公开(公告)号：US20090196154A1

公开(公告)日：2009-08-06

申请号：US12360172

申请日：2009-01-27

申请人： Masato Gomyo

发明人： Masato Gomyo

IPC分类号： G11B23/00 ,  B21D53/10

CPC分类号： G11B25/043 ,  G11B33/12 ,  Y10T29/49696

摘要： A method for manufacturing a bearing mechanism used in an electric motor includes (a) inserting an annular member into a substantially cylindrical closed-bottom cup member to bring a first end portion of a shaft fitted to the annular member into contact with a thermoplastic resin member arranged on an inner bottom surface of the cup member, bringing the annular member into contact with the shaft in a direction leading from an opening of the cup member to a bottom portion of the cup member, and fixing the annular member to the cup member; and (b) deforming the resin member by externally heating the bottom portion of the cup member and applying a load acting toward the bottom portion on a second end portion of the shaft. Further, an electric motor includes a rotor unit, a stator unit, and the bearing mechanism manufactured by this method.

摘要翻译： 一种用于制造在电动机中使用的轴承机构的方法包括：（a）将环形构件插入大致圆筒形的封闭底杯构件中，使装配到环形构件的轴的第一端部与热塑性树脂构件 布置在杯形件的内底表面上，使得环形构件沿着从杯构件的开口引导到杯构件的底部的方向与轴接触，并将环形构件固定到杯构件; 和（b）通过对杯形件的底部进行外部加热而使树脂构件变形，并向轴的第二端部施加朝向底部的作用力。 此外，电动机包括转子单元，定子单元和通过该方法制造的轴承机构。

公开(公告)号：US20090080817A1

公开(公告)日：2009-03-26

申请号：US12234743

申请日：2008-09-22

申请人： Masato Gomyo

发明人： Masato Gomyo

IPC分类号： F16C32/06 ,  H02K5/00 ,  B21D53/10

CPC分类号： F16C17/107 ,  F16C17/08 ,  F16C33/107 ,  F16C2370/12 ,  G11B19/2036 ,  Y10T29/49639

摘要： A thrust plate used in a fluid dynamic pressure bearing of the present invention includes a concave portion in which a lower end portion of a shaft is accommodated. The thrust plate is immersed in a lubricant, and is disposed between the lower end portion of the shaft and a bottom-portion upper surface of a bearing housing without being fixed to the bearing housing.Accordingly, the thrust plate radially moves in accordance with the position in which the lower end portion of the shaft is in contact with the concave portion of the thrust plate. As a result, the centers of the shaft and the thrust plate motor can be aligned satisfactorily.

摘要翻译： 在本发明的流体动压轴承中使用的止推板包括容纳轴的下端部的凹部。 推力板浸入润滑剂中，并且被设置在轴的下端部分和轴承壳体的底部上表面之间，而不固定到轴承壳体。 因此，推力板根据轴的下端部与止推板的凹部接触的位置而径向移动。 结果，轴和推力板马达的中心可以令人满意地对准。

公开(公告)号：US20070154123A1

公开(公告)日：2007-07-05

申请号：US11712610

申请日：2007-02-27

申请人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

发明人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

IPC分类号： F16C32/06

CPC分类号： G11B19/2018 ,  F16C17/026 ,  F16C17/105 ,  F16C33/107 ,  F16C33/1085 ,  F16C2370/12

摘要： A hydrodynamic bearing device comprises a shaft bush having a substantially conical inclined dynamic pressure surface around the outer circumference thereof which is relatively rotatably inserted in a bearing sleeve having a substantially conical inclined dynamic pressure surface around the inner circumference thereof. A substantially conical inclined bearing space is created in the gap between the inclined dynamic pressure surfaces of the bearing sleeve and shaft bush. Lubricant fluid is filled inside the inclined bearing space. A proper dynamic pressure generating means is formed on at least one of the inclined dynamic pressure surfaces of the shaft bush and bearing sleeve. The lubricant fluid is pressurized by the dynamic pressure generating means to generate dynamic pressure, by which the shaft bush and the bearing sleeve are relatively elevated in the radial and thrust directions so that their rotations are supported in a non-contact manner. A fluid sealing portion is provided in the inclined bearing space to prevent the lubricant fluid from leaking outside of the inclined bearing space. A fluid pressurizing means is provided between the inclined bearing space and the fluid sealing portion to pressurize the lubricant fluid in the direction to push it toward the inside of the inclined bearing space.

公开(公告)号：US07118278B2

公开(公告)日：2006-10-10

申请号：US10709986

申请日：2004-06-11

申请人： Masato Gomyo ,  Noboru Ashibe ,  Junya Mizukami

发明人： Masato Gomyo ,  Noboru Ashibe ,  Junya Mizukami

IPC分类号： F16C32/06 ,  F16C33/74

CPC分类号： G11B19/2018 ,  F16C17/102 ,  F16C33/103 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/163 ,  H02K5/165

摘要： A suitable the inner point is set on a vapor-liquid face of lubricating fluid formed in a composite capillary seal section that utilizes capillary force and rotational centrifugal force acted on the lubricating fluid. An inner peripheral surface of a ring-shaped portion is formed such that the minimum value R1 in radial-direction distances of the inner peripheral face of the ring-shaped portion becomes greater than a radial-direction distance R2 of the inner point (R1>R2). This can observe the inner point of the lubricating fluid from the immediately-above position, whereby the filling amount of the lubricating fluid can easily and surely be measured, thereby being capable of adjusting the filling amount of the lubricating fluid to a preset amount.

摘要翻译： 将合适的内点设置在复合毛细管密封部分中形成的润滑流体的气液面上，其利用作用在润滑流体上的毛细管力和旋转离心力。 环状部的内周面形成为使得环状部的内周面的径向距离的最小值R 1大于内点的径向距离R 2（ R 1> R 2）。 这样可以观察从上述位置起的润滑流体的内部点，从而容易且可靠地测量润滑流体的填充量，从而能够将润滑流体的填充量调节到预定量。

公开(公告)号：US07008109B2

公开(公告)日：2006-03-07

申请号：US10708105

申请日：2004-02-10

申请人： Masato Gomyo ,  Noboru Ashibe ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Nobutaka Nagao ,  Koichi Shoda ,  Akihito Kobayashi

发明人： Masato Gomyo ,  Noboru Ashibe ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Nobutaka Nagao ,  Koichi Shoda ,  Akihito Kobayashi

IPC分类号： F16C32/06

CPC分类号： F16C33/201 ,  F16C17/107 ,  F16C33/10 ,  F16C2370/12

摘要： A dynamic pressure bearing device includes a dynamic pressure face of a shaft member, a dynamic pressure face of a bearing member, lubricating fluid filled in a bearing space of a dynamic pressure bearing portion including a gap between the dynamic pressure faces, a dynamic pressure generation means for pressing so that the lubricating fluid generates a dynamic pressure that supports the shaft member in a non-contact manner with the bearing member and in a rotatable manner relatively to the bearing member, and a sliding surface layer having abrasion resistance provided to at least one of the dynamic pressure face of the shaft member and the dynamic pressure face of the bearing member. The sliding surface layer is made up of a resin lubricating film in which many particles of solid lubricating material is dispersed, and a maximum diameter of the particles constituting the solid lubricating material included in the sliding surface layer is smaller than a minimum gap size of the bearing space of the dynamic pressure bearing portion.

摘要翻译： 动压轴承装置包括轴构件的动压面，轴承构件的动压面，填充在包括动压面之间的间隙的动压承受部的轴承空间中的润滑流体，动压产生 用于压制的装置，使得润滑流体产生动态压力，该动态压力以与轴承构件非接触的方式相对于轴承构件以可旋转的方式产生支撑轴构件，并且具有至少提供耐磨性的滑动表面层 轴构件的动压面和轴承构件的动压面之一。 滑动面层由分散有许多固体润滑材料颗粒的树脂润滑膜构成，并且构成包含在滑动表面层中的固体润滑材料的颗粒的最大直径小于最小间隙尺寸 动压轴承部分的轴承空间。