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公开(公告)号：US20120033330A1
公开(公告)日：2012-02-09
申请号：US13198797
申请日：2011-08-05
Applicant: Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Takehito TAMAOKA , Takashi YAMAMOTO , Kazunori USUI , Akira MUKAI
Inventor： Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Takehito TAMAOKA , Takashi YAMAMOTO , Kazunori USUI , Akira MUKAI
CPC classification number: F16C17/107 , F16C33/745 , F16C2370/12 , H02K5/1677
Abstract: In a motor, a stationary portion includes a shaft portion and an upper thrust portion arranged to define a single continuous monolithic member together with the shaft portion, and arranged to extend radially outward from an upper portion of the shaft portion. The shaft portion includes a female screw portion recessed axially downward from an upper end thereof. An upper end of the single continuous monolithic member defined by the shaft portion and the upper thrust portion includes an upper end annular surface arranged to extend radially outward from the female screw portion perpendicularly or substantially perpendicularly to the central axis. An outside diameter of the upper end annular surface is greater than a diameter of an outer circumferential surface of the shaft portion.
Abstract translation: 在电动机中，固定部分包括轴部分和上推力部分，所述上部推力部分布置成与所述轴部分一起限定单个连续的整体部件，并且被布置成从所述轴部分的上部径向向外延伸。 轴部包括从其上端轴向向下凹陷的阴螺纹部。 由所述轴部分和所述上推力部分限定的所述单个连续整体构件的上端包括上端环形表面，所述上端环形表面布置成垂直地或基本垂直于所述中心轴线从所述内螺纹部分径向向外延伸。 上端环状面的外径大于轴部的外周面的直径。
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公开(公告)号：US20110134566A1
公开(公告)日：2011-06-09
申请号：US12873430
申请日：2010-09-01
Applicant: Yoichi SEKII , Hirokazu SHIRAI , Junya MIZUKAMI , Kazuyoshi SAITO , Hideki NISHIMURA , Atsushi YAWATA
Inventor： Yoichi SEKII , Hirokazu SHIRAI , Junya MIZUKAMI , Kazuyoshi SAITO , Hideki NISHIMURA , Atsushi YAWATA
IPC: G11B17/02
CPC classification number: G11B19/2027 , G11B19/2009 , H02K5/24 , H02K7/085 , H02K7/09
Abstract: A stationary portion of a spindle motor includes a base member and a magnetic member. The magnetic member is arranged below a magnet and fixed to the base member. The magnetic member includes an annular plate portion arranged on an upper surface of the base member, and a projecting portion arranged to extend from the plate portion in an axial direction. At least a portion of the projecting portion is press fitted to a wall surface of the base member.
Abstract translation: 主轴电动机的固定部分包括基座部件和磁性部件。 磁性构件布置在磁体下方并固定到基座构件。 磁性构件包括布置在基底构件的上表面上的环形板部分和布置成沿轴向从板部延伸的突出部分。 突出部分的至少一部分压配合到基部构件的壁表面。
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公开(公告)号：US20080307447A1
公开(公告)日：2008-12-11
申请号：US12129731
申请日：2008-05-30
Applicant: Masato GOMYO , Yoichi SEKII , Kazuyoshi SAITO , Tadashi HASEGAWA , Tsuyoshi KATO
Inventor： Masato GOMYO , Yoichi SEKII , Kazuyoshi SAITO , Tadashi HASEGAWA , Tsuyoshi KATO
CPC classification number: G11B17/0287 , Y10T156/1052
Abstract: In a manufacturing method of a disk-driving spindle motor, a disc-support member includes a base portion and a positioning portion. The disc-support member is fixed to a hub member. The base portion is in contact with a lower surface of a disc. The positioning portion extends axially upwardly from the base portion, and is disposed around the center axis. The positioning portion is in contact with an inner circumferential face or an inner circumferential rim of the disc.The disc-support member is preferably made from a resin material having a cutting resistance smaller than that of a metal material from which the hub member is made.
Abstract translation: 在盘驱动主轴电机的制造方法中，盘支撑部件包括基部和定位部。 盘支撑构件固定到轮毂构件。 基部与盘的下表面接触。 定位部分从基部轴向向上延伸，并且围绕中心轴设置。 定位部与盘的内周面或内周缘接触。 盘支撑构件优选由具有小于由其制成轮毂构件的金属材料的切割阻力的树脂材料制成。
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公开(公告)号：US20130083426A1
公开(公告)日：2013-04-04
申请号：US13613106
申请日：2012-09-13
Applicant: Takehito TAMAOKA , Shuji IWASAKI , Yoichi SEKII , Hideki NISHIMURA
Inventor： Takehito TAMAOKA , Shuji IWASAKI , Yoichi SEKII , Hideki NISHIMURA
CPC classification number: G11B19/2009 , F16C17/107 , F16C33/745 , F16C2370/12 , H02K5/1677
Abstract: A motor includes a shaft portion, an upper plate cylindrical portion, a lower plate cylindrical portion, and a sleeve portion disposed between an upper plate portion and a lower plate portion. The sleeve portion includes an inner sleeve cylindrical portion and an outer sleeve cylindrical portion. An upper seal portion is arranged between the outer circumferential surface of the upper plate cylindrical portion and the inner circumferential surface of the outer sleeve cylindrical portion. A lower seal portion is arranged between the outer circumferential surface of the outer sleeve cylindrical portion and the inner circumferential surface of the lower plate cylindrical portion. At least a portion of the upper seal portion and at least a portion of the lower seal portion radially overlap with a radial gap between the outer circumferential surface of the shaft portion and the inner circumferential surface of the inner sleeve cylindrical portion.
Abstract translation: 电动机包括轴部，上板圆筒部，下板圆筒部和设置在上板部和下板部之间的套筒部。 套筒部分包括内套筒部分和外套筒部分。 在上板圆筒部的外周面与外套筒筒部的内周面之间配置有上密封部。 在外筒筒部的外周面与下板圆筒部的内周面之间配置有下密封部。 上密封部分的至少一部分和下密封部分的至少一部分径向地与轴部的外圆周表面和内套筒圆筒部分的内圆周表面之间的径向间隙重叠。
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Patent Agency Ranking
公开(公告)号：US20130050872A1
公开(公告)日：2013-02-28
申请号：US13564934
申请日：2012-08-02
Applicant: Yoichi SEKII , Takehito TAMAOKA , Kazuhiro SATO , Kazuhiko FUKUSHIMA , Hiroyuki ABE
Inventor： Yoichi SEKII , Takehito TAMAOKA , Kazuhiro SATO , Kazuhiko FUKUSHIMA , Hiroyuki ABE
CPC classification number: H02K5/22 , G11B25/043 , H02K1/146 , H02K3/44 , H02K3/522 , H02K5/00 , H02K5/225 , H02K2203/03 , H02K2213/03
Abstract: A motor includes a stationary unit and a rotary unit. The stationary unit includes a stator, a base portion having at least one hole extending in the up-down direction, and a flexible wiring substrate. The flexible wiring substrate reaches a position higher than a lower surface of the base portion through at least one hole and is arranged to supply electric power to the stator. The flexible wiring substrate includes a connection portion arranged higher than the lower surface of the base portion and connected to the stator. The connection portion includes a solder portion arranged on a lower surface thereof to cover a portion of a lead wire extending from a coil of the stator. At least a portion of the solder portion is positioned within the hole.
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公开(公告)号：US20120033328A1
公开(公告)日：2012-02-09
申请号：US13198793
申请日：2011-08-05
Applicant: Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Hideki NISHIMURA , Takehito TAMAOKA , Takashi YAMAMOTO
Inventor： Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Hideki NISHIMURA , Takehito TAMAOKA , Takashi YAMAMOTO
CPC classification number: H02K7/085 , F16C17/107
Abstract: A spindle motor includes a stationary portion and a rotating portion. The stationary portion preferably includes a shaft portion, an upper thrust portion, and an outer tubular portion. The rotating portion preferably includes an inner tubular portion, a flange portion, an upper hub annular portion, and a lower hub annular portion. The flange portion includes a communicating hole. An upper surface of a lubricating oil is located in a fifth gap defined between an upper thrust portion and an upper hub annular portion, while a lower surface of the lubricating oil is located in a sixth gap defined between an outer tubular portion and a lower hub annular portion. The communicating hole and a space extending from the fifth gap to the sixth gap through a fourth gap, a first gap, a second gap, and a third gap are continuously filled with the lubricating oil.
Abstract translation: 主轴电动机包括固定部分和旋转部分。 固定部分优选地包括轴部分，上推力部分和外管状部分。 旋转部分优选包括内部管状部分，凸缘部分，上部轮毂环形部分和下部轮毂环形部分。 凸缘部包括连通孔。 润滑油的上表面位于限定在上推力部分和上轮毂环部分之间的第五间隙中，而润滑油的下表面位于限定在外管状部分和下轮毂之间的第六间隙中 环形部分。 连通孔和通过第四间隙，第一间隙，第二间隙和第三间隙从第五间隙延伸到第六间隙的空间连续地填充有润滑油。
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公开(公告)号：US20120033325A1
公开(公告)日：2012-02-09
申请号：US13198776
申请日：2011-08-05
Applicant: Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Hideki NISHIMURA , Takehito TAMAOKA , Takashi YAMAMOTO
Inventor： Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Hideki NISHIMURA , Takehito TAMAOKA , Takashi YAMAMOTO
CPC classification number: H02K7/085 , F16C17/105 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B19/2036 , G11B33/1473
Abstract: A dynamic pressure bearing is defined in a first gap between a shaft portion and a sleeve portion. An upper seal portion extending upward and a lower seal portion extending downward are arranged radially outward of the dynamic pressure bearing. Each of the upper seal portion and the lower seal portion includes a surface including a lubricating oil located therein. The upper seal portion and the lower seal portion are arranged in communication with each other through a communicating hole defined in the sleeve portion. The communicating hole and a space ranging from the upper seal portion to the lower seal portion through the first gap are filled with the lubricating oil. The axial distance between the surfaces of the lubricating oil in the upper seal portion and the lower seal portion is arranged to be shorter than the axial distance between an upper end and a lower end of the dynamic pressure bearing.
Abstract translation: 在轴部和套筒部之间的第一间隙中限定动态压力轴承。 向上延伸的上密封部分和向下延伸的下密封部分设置在动压轴承的径向外侧。 上密封部分和下密封部分中的每一个包括其中包括润滑油的表面。 上密封部分和下密封部分通过限定在套筒部分中的连通孔彼此连通。 连通孔和通过第一间隙从上密封部到下密封部的空间填充有润滑油。 上密封部中的润滑油的表面与下部密封部之间的轴向距离比动压轴承的上端和下端的轴向距离短。
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18.发明申请FLUID DYNAMIC PRESSURE BEARING DEVICE, SPINDLE MOTOR AND DISK DRIVE APPARATUS 有权流体动力压力轴承装置，主轴电机和磁盘驱动装置公开(公告)号：US20110299193A1
公开(公告)日：2011-12-08
申请号：US13197820
申请日：2011-08-04
Applicant: Yoichi SEKII , Hironao SASAKI , Takuro IGUCHI , Hironori ANDO , Toshihiro AKIYAMA , Takunori SHINAO , Yuichi SHIGEMATSU , Yasutaka INO , Tatsuyoshi NAKATANI
Inventor： Yoichi SEKII , Hironao SASAKI , Takuro IGUCHI , Hironori ANDO , Toshihiro AKIYAMA , Takunori SHINAO , Yuichi SHIGEMATSU , Yasutaka INO , Tatsuyoshi NAKATANI
CPC classification number: G11B19/2036 , F16C17/105 , F16C17/107 , F16C33/107 , F16C2370/12 , G11B17/0287
Abstract: A fluid dynamic bearing mechanism includes a stationary shaft, a sleeve portion arranged to rotate with respect to the shaft, and a thrust portion including an upper end surface arranged oppose to a lower end surface of the sleeve portion. An inside surface of the thrust portion includes an inside surface contact portion arranged in contact with an outside surface of the shaft, and an inside surface lower non-contact portion spaced away from the outside surface of the shaft, and arranged to extend downward from a lower end of the inside surface contact portion. An outside surface of the thrust portion includes an outside surface inclined portion arranged in contact with an interface of a lubricating oil. The lower end of the inside surface contact portion is arranged at a level axially higher than that of a lower end of the outside surface inclined portion.
Abstract translation: 流体动力轴承机构包括固定轴，布置成相对于轴旋转的套筒部分和包括与套筒部分的下端表面相对布置的上端表面的推力部分。 推力部的内表面包括与轴的外表面接触的内表面接触部和与轴的外表面间隔开的内表面下非接触部，并且从内侧面向下延伸 内表面接触部分的下端。 推力部的外表面包括与润滑油的界面接触配置的外表面倾斜部。 内表面接触部分的下端设置在比外表面倾斜部分的下端更高的轴向上。
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19.发明申请FLUID DYNAMIC PRESSURE BEARING DEVICE, SPINDLE MOTOR AND DISK DRIVE APPARATUS 有权流体动力压力轴承装置，主轴电机和磁盘驱动装置公开(公告)号：US20100195250A1
公开(公告)日：2010-08-05
申请号：US12765122
申请日：2010-04-22
Applicant: Yoichi SEKII , Hironao SASAKI , Takuro IGUCHI , Hironori ANDO , Toshihiro AKIYAMA , Takunori SHINAO , Yuichi SHIGEMATSU
Inventor： Yoichi SEKII , Hironao SASAKI , Takuro IGUCHI , Hironori ANDO , Toshihiro AKIYAMA , Takunori SHINAO , Yuichi SHIGEMATSU
CPC classification number: F16C17/107 , F16C17/105 , F16C33/107 , F16C33/745 , F16C43/02 , F16C2370/12 , G11B17/0287
Abstract: A bearing mechanism includes a shaft, a sleeve portion, a thrust portion, and a cover portion. Lubricating oil is arranged in a communicating channel in the sleeve portion, a thrust gap between the sleeve portion and the thrust portion, and a tapered gap between an outside surface of the thrust portion and the cover portion. A lower end opening of the communicating channel is defined in an outer circumferential portion of a lower surface of the sleeve portion radially outward of the thrust gap. A radially outermost portion of the thrust portion is arranged either tangent to a wall surface of the communicating channel or closer to a central axis than the wall surface. The tapered gap is arranged closer to the central axis than a radially outermost point of the wall surface. The outer circumferential portion and the cover portion define a guide gap therebetween.
Abstract translation: 轴承机构包括轴，套筒部分，推力部分和盖部分。 润滑油布置在套筒部分的连通通道中，套筒部分和推力部分之间的推力间隙以及推力部分的外表面与盖部分之间的锥形间隙。 连通通道的下端开口被限定在径向向外推动间隙的套筒部分的下表面的外圆周部分中。 推力部分的径向最外部分布置成与连通通道的壁表面相切或者比壁表面更靠近中心轴线。 锥形间隙布置成比壁表面的径向最外侧更靠近中心轴线。 外周部和盖部在其间限定引导间隙。
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