公开(公告)号：US08508882B1

公开(公告)日：2013-08-13

申请号：US13568207

申请日：2012-08-07

申请人： Takehito Tamaoka ,  Hiroyuki Abe

发明人： Takehito Tamaoka ,  Hiroyuki Abe

IPC分类号： G11B19/20

CPC分类号： H02K5/24 ,  G11B19/2018 ,  H02K3/18 ,  H02K21/22 ,  H02K2213/03

摘要： A spindle motor includes a base portion; a stator arranged above the base portion; a rotor hub including a cover portion positioned above the stator, and a side wall portion arranged to extend downward from an outer edge of the cover portion; a rotor magnet positioned radially outward of the stator, and fixed to an inner circumferential surface of the side wall portion of the rotor hub; and a bearing mechanism arranged to support the rotor hub and the rotor magnet to be rotatable. A height of the rotor magnet as measured in an axial direction is preferably in a range of about 2 mm to about 3 mm (both inclusive), and a height of a stator core of the stator as measured in the axial direction is preferably in a range of about 50% to about 75% (both inclusive) of the height of the rotor magnet.

摘要翻译： 主轴电动机包括基部; 定子，其布置在所述基部上方; 转子毂，其包括定位在定子上方的盖部分，以及设置成从盖部分的外边缘向下延伸的侧壁部分; 定子的径向外侧的转子磁体，固定在转子毂的侧壁部的内周面上; 以及轴承机构，其布置成支撑转子毂和转子磁体以可旋转。 在轴向上测量的转子磁体的高度优选在大约2mm至大约3mm（包括两端）的范围内，并且沿轴向测量的定子的定子芯的高度优选为 范围为转子磁体的高度的约50％至约75％（包括）。

公开(公告)号：US08379345B2

公开(公告)日：2013-02-19

申请号：US13198793

申请日：2011-08-05

申请人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

发明人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

IPC分类号： G11B17/08

CPC分类号： H02K7/085 ,  F16C17/107

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07988810B2

公开(公告)日：2011-08-02

申请号：US11857520

申请日：2007-09-19

申请人： Takehito Tamaoka

发明人： Takehito Tamaoka

IPC分类号： B29C65/00 ,  B29C67/00 ,  B32B37/00 ,  C09J5/06 ,  B31F5/00 ,  B65H29/00

CPC分类号： H02K15/14 ,  F16C17/107 ,  F16C33/08 ,  F16C2380/26 ,  H02K5/1675 ,  Y10T29/49826 ,  Y10T156/1744

摘要： An adhesive is applied to an inner surface of a sleeve housing, and a sleeve is relatively moved toward the sleeve housing from inserted into the sleeve housing. The adhesive is cured while a predetermined distance is maintained between a first bearing surface of the sleeve and a lower surface of a flange portion of the sleeve housing.

摘要翻译： 粘合剂被施加到套筒壳体的内表面，并且套筒相对于套筒壳体移动以插入到套筒壳体中。 在套筒的第一支承表面和套筒壳体的凸缘部分的下表面之间保持预定距离的同时固化粘合剂。

公开(公告)号：US07940493B2

公开(公告)日：2011-05-10

申请号：US12389450

申请日：2009-02-20

申请人： Takehito Tamaoka ,  Hiroomi Ogawa

发明人： Takehito Tamaoka ,  Hiroomi Ogawa

IPC分类号： G11B17/02 ,  H02K5/16

CPC分类号： G11B19/2009 ,  H02K1/185 ,  H02K3/522 ,  H02K21/16

摘要： Using a simple and inexpensive method, a reliable spindle motor having a simple and inexpensive structure is afforded, in which contact failure of the FPC does not occur even when the motor undergoes external impact. An extending portion is provided radially outer side of an annular recess of a base. The extending portion has a step whose radially outer side is higher, and a through hole formed such as to pass through the base from its inside to outside. A FPC is disposed on an upper surface of a stator. The FPC is fixed to a lower surface of the base through the through hole. The bending height and the bending angle of the FPC are minimized by providing the step having appropriate height so that the FPC is not easily peeled off even when subject to external impact.

摘要翻译： 使用简单且廉价的方法，提供了具有简单且便宜的结构的可靠的主轴电机，其中即使当电动机经受外部冲击时也不会发生FPC的接触故障。 在基部的环形凹部的径向外侧设置有延伸部。 延伸部分具有径向外侧较高的台阶，以及形成为从内向外穿过底座的通孔。 FPC定位在上表面上。 FPC通过通孔固定在基座的下表面。 通过提供具有适当高度的台阶使FPC的弯曲高度和弯曲角度最小化，使得FPC即使经受外部冲击也不容易剥离。

公开(公告)号：US07866047B2

公开(公告)日：2011-01-11

申请号：US11276863

申请日：2006-03-17

申请人： Takehito Tamaoka

发明人： Takehito Tamaoka

IPC分类号： B23Q23/00 ,  B23P17/00 ,  B21K1/04 ,  B21K1/10

CPC分类号： H02K5/1675 ,  H02K15/14 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49696 ,  Y10T29/497 ,  Y10T29/53078

摘要： In the manufacture of a sleeve unit (22), when a sleeve (221) is to be glued to a sleeve housing (222), an endfaces (225) of the sleeve (221) while abutting on a sleeve retainer (51) is spring-biased along the center axis J1 in the direction toward the sleeve retainer (51). Meanwhile, an endface (226) on a side of the sleeve housing (222) opposite from the endface (225) of the sleeve (221) while abutting on a sleeve-housing retainer (52) is spring-biased along the center axis J1 in the direction toward the sleeve-housing retainer (52).

摘要翻译： 在制造套筒单元（22）时，当将套筒（221）胶合到套筒壳体（222）时，套筒（221）的端面（225）在与套筒保持器（51）邻接的同时是 沿着中心轴线J1朝向套筒保持架（51）的方向弹簧偏置。 同时，在套筒壳体（222）的与套筒（221）的端面（225）相对的一侧上的端面（226）在抵接在套筒壳体保持器（52）上时沿着中心轴线J1被弹簧偏置 在朝向套筒保持器（52）的方向上。

公开(公告)号：US07515379B2

公开(公告)日：2009-04-07

申请号：US11425152

申请日：2006-06-20

申请人： Takehito Tamaoka ,  Hiroomi Ogawa

发明人： Takehito Tamaoka ,  Hiroomi Ogawa

IPC分类号： G11B17/02

CPC分类号： G11B19/2009 ,  H02K1/185 ,  H02K3/522 ,  H02K21/16

摘要： Using a simple and inexpensive method, a reliable spindle motor having a simple and inexpensive structure is afforded, in which contact failure of the FPC does not occur even when the motor undergoes external impact. An extending portion is provided radially outer side of an annular recess of a base. The extending portion has a step whose radially outer side is higher, and a through hole formed such as to pass through the base from its inside to outside. A FPC is disposed on an upper surface of a stator. The FPC is fixed to a lower surface of the base through the through hole. The bending height and the bending angle of the FPC are minimized by providing the step having appropriate height so that the FPC is not easily peeled off even when subject to external impact.

摘要翻译： 使用简单且廉价的方法，提供了具有简单且便宜的结构的可靠的主轴电机，其中即使当电动机经受外部冲击时也不会发生FPC的接触故障。 在基部的环形凹部的径向外侧设置有延伸部。 延伸部分具有径向外侧较高的台阶，以及形成为从内向外穿过底座的通孔。 FPC定位在上表面上。 FPC通过通孔固定在基座的下表面。 通过提供具有适当高度的台阶使FPC的弯曲高度和弯曲角度最小化，使得FPC即使经受外部冲击也不容易剥离。

公开(公告)号：US20070230842A1

公开(公告)日：2007-10-04

申请号：US11730431

申请日：2007-04-02

申请人： Takehito Tamaoka ,  Ryouji Sugiura

发明人： Takehito Tamaoka ,  Ryouji Sugiura

IPC分类号： F16C32/06

CPC分类号： F16C17/08 ,  F16C17/026 ,  F16C33/107 ,  F16C33/14 ,  F16C2220/66 ,  F16C2220/70 ,  F16C2220/82 ,  F16C2220/84 ,  F16C2223/04 ,  F16C2223/06 ,  F16C2223/08 ,  F16C2223/32 ,  F16C2226/40 ,  F16C2370/12 ,  Y10T29/49636 ,  Y10T29/49645 ,  Y10T29/49995 ,  Y10T29/49996

摘要： A plate-like material is pressed and a middle concave portion centered on a center axis is formed in one axial surface of the material. Likely, an annular concave portion centered on a center axis and radially outwardly arranged is formed in one and/or the other axial surface of the material. The material is then cut along a radially outer rim of the middle concave portion, and between a radially outer rim and a radially inner rim of the annular concave portion. In this way, a thrust plate having indented portions at radially inside and outside portion of the one and/or the other axial surface thereof is manufactured. A burr formed in press working is accommodate within the indented portion and does not axially protrude from the one and/or the other axial surface of the thrust plate.

摘要翻译： 压制板状材料，并且在该材料的一个轴向表面上形成以中心轴为中心的中间凹部。 可能地，在材料的一个和/或另一个轴向表面中形成以中心轴线为中心并径向向外布置的环形凹部。 然后沿着中间凹部的径向外边缘以及在环形凹部的径向外边缘和径向内边缘之间切割材料。 以这种方式，制造在其一个和/或另一个轴向表面的径向内侧和外侧部分具有凹入部分的止推板。 在压制加工中形成的毛刺容纳在凹入部分内并且不从止推板的一个和/或另一个轴向表面轴向突出。

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：US08823230B2

公开(公告)日：2014-09-02

申请号：US13198787

申请日：2011-08-05

申请人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

发明人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

IPC分类号： H02K5/167 ,  G11B33/14 ,  G11B25/04 ,  H02K7/08

CPC分类号： H02K7/085 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B25/043 ,  G11B33/1473

摘要： A motor includes a stationary portion and a rotating portion. The rotating portion includes a sleeve portion. The sleeve portion includes a communicating hole. A dynamic pressure bearing is defined in a first gap between a shaft portion and the sleeve portion. An upper seal portion and a lower seal portion are arranged radially outward of the dynamic pressure bearing. The upper seal portion and the lower seal portion are arranged in communication with each other through the communicating hole. The communicating hole and a space extending from the upper seal portion to the lower seal portion through the first gap are filled with a lubricating oil. A fixing region where an outer tubular portion and a base portion are fixed to each other is arranged to overlap with the dynamic pressure bearing in a radial direction in plan view.

摘要翻译： 电动机包括固定部分和旋转部分。 旋转部分包括套筒部分。 套筒部分包括连通孔。 在轴部和套筒部之间的第一间隙中限定动态压力轴承。 上密封部分和下密封部分布置在动压轴承的径向外侧。 上密封部分和下密封部分通过连通孔彼此连通。 连通孔和通过第一间隙从上密封部分延伸到下密封部分的空间填充有润滑油。 在外观管状部和基部彼此固定的固定区域在俯视图中与动压轴承重合。

公开(公告)号：US08711514B2

公开(公告)日：2014-04-29

申请号：US13613109

申请日：2012-09-13

申请人： Shuji Iwasaki ,  Yoichi Sekii ,  Takehito Tamaoka ,  Hideki Nishimura ,  Kazuto Miyajima ,  Takuro Iguchi ,  Kazuhiro Sato ,  Takeyuki Shuto

发明人： Shuji Iwasaki ,  Yoichi Sekii ,  Takehito Tamaoka ,  Hideki Nishimura ,  Kazuto Miyajima ,  Takuro Iguchi ,  Kazuhiro Sato ,  Takeyuki Shuto

IPC分类号： G11B5/39

CPC分类号： H02K5/167 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C33/745 ,  F16C2226/12 ,  F16C2226/40 ,  F16C2226/60 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1677 ,  H02K7/086

摘要： A motor includes a shaft component including an inner shaft portion and an outer shaft portion. A radial gap is defined between a sleeve portion and the outer shaft portion. A radial dynamic pressure generating groove array is arranged on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper and lower radial dynamic pressure generating groove array. The inner shaft portion is fixed to the outer shaft portion in an interference fit. An axial range of a fixing region of the inner shaft portion and the outer shaft portion which is in the interference fit is included in a range between the upper and lower radial dynamic pressure generating groove array.

摘要翻译： 电动机包括轴组件，其包括内轴部分和外轴部分。 径向间隙限定在套筒部分和外轴部分之间。 径向动压产生槽阵列布置在套筒部分的内圆周表面的至少一个表面和限定径向间隙的外轴部分的外圆周表面上。 径向动压产生槽阵列包括上和下径向动压产生凹槽阵列。 内轴部以过盈配合固定在外轴部。 内轴部和外轴部的紧固配合的固定区域的轴向范围包含在上部和下部径向动态压力产生槽阵列之间的范围内。