公开(公告)号：US08807836B2

公开(公告)日：2014-08-19

申请号：US13488865

申请日：2012-06-05

申请人： Mitsuo Kodama ,  Taketo Nonaka ,  Masafumi Mizuno

发明人： Mitsuo Kodama ,  Taketo Nonaka ,  Masafumi Mizuno

IPC分类号： F16C21/00 ,  F16C32/06

CPC分类号： F16C32/0659 ,  F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12

摘要： A rotating device includes a shaft body having a shaft, a first flange extending in the radial direction from the side face of the shaft, and a second flange extending outwardly of the radial direction from another end side, a freely rotatable bearing body including a shaft encircling member present between the second flange and the first flange in the axial direction, a radial dynamic pressure generating groove provided in either one of the shaft and the shaft encircling member, a first thrust dynamic pressure generating groove provided in either one of the first flange and the shaft encircling member, and a lubrication medium. An end of the region where the radial dynamic pressure generating groove is formed and which is distant from the second flange is located outwardly of the region where the first thrust dynamic pressure generating groove is disposed in the axial direction.

摘要翻译： 旋转装置包括轴体，其具有轴，从轴的侧面沿径向延伸的第一凸缘和从另一端侧向径向外延伸的第二凸缘，包括轴的自由旋转的轴承体 在轴向上存在于第二凸缘和第一凸缘之间的环绕构件，设置在轴和轴环绕构件中的任一个中的径向动压产生槽，设置在第一凸缘中的任一个中的第一推力动压生成槽 和轴环绕构件，以及润滑介质。 形成径向动压产生槽并且远离第二凸缘的区域的一端位于第一推力动压生成槽沿轴向设置的区域的外侧。

公开(公告)号：US20130322793A1

公开(公告)日：2013-12-05

申请号：US13488865

申请日：2012-06-05

申请人： Mitsuo KODAMA ,  Taketo Nonaka ,  Masafumi Mizuno

发明人： Mitsuo KODAMA ,  Taketo Nonaka ,  Masafumi Mizuno

IPC分类号： F16C32/06

CPC分类号： F16C32/0659 ,  F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12

摘要： A rotating device includes a shaft body having a shaft, a first flange extending in the radial direction from the side face of the shaft, and a second flange extending outwardly of the radial direction from another end side, a freely rotatable bearing body including a shaft encircling member present between the second flange and the first flange in the axial direction, a radial dynamic pressure generating groove provided in either one of the shaft and the shaft encircling member, a first thrust dynamic pressure generating groove provided in either one of the first flange and the shaft encircling member, and a lubrication medium. An end of the region where the radial dynamic pressure generating groove is formed and which is distant from the second flange is located outwardly of the region where the first thrust dynamic pressure generating groove is disposed in the axial direction.

摘要翻译： 旋转装置包括轴体，其具有轴，从轴的侧面沿径向延伸的第一凸缘和从另一端侧向径向外延伸的第二凸缘，包括轴的自由旋转的轴承体 在轴向上存在于第二凸缘和第一凸缘之间的环绕构件，设置在轴和轴环绕构件中的任一个中的径向动压产生槽，设置在第一凸缘中的任一个中的第一推力动压生成槽 和轴环绕构件，以及润滑介质。 形成径向动压产生槽并且远离第二凸缘的区域的一端位于第一推力动压生成槽沿轴向设置的区域的外侧。

公开(公告)号：US07901138B2

公开(公告)日：2011-03-08

申请号：US11525020

申请日：2006-09-22

申请人： Mitsuo Kodama ,  Taketo Nonaka

发明人： Mitsuo Kodama ,  Taketo Nonaka

IPC分类号： F16C32/06

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C2370/12

摘要： A fluid bearing device (50B, 50AB) is composed of a shaft (1, 51); a sleeve (9, 59) into which the shaft (1, 51) is inserted; and lubrication fluid (20) intervening in a gap between the shaft (1, 51) and the sleeve (9, 59), the fluid bearing device (50B, 50AB) supporting the shaft (1, 51) so as to be relatively rotatable freely with respect to the sleeve (9, 59), wherein an end portion of the sleeve (9, 59) is provided with a taper ring (4, 54) in annular shape, wherein at least either one of an inner circumferential surface (4a, 54a) of the taper ring (4, 54) and an outer circumferential surface (1a, 91b) of the shaft (1, 51) facing towards the inner circumferential surface (4a, 54a) of the taper ring (4, 54) is formed into a tapered surface (4a, 54a), which inclines in a direction as a gap between the inner circumferential surface (4a, 54a) of the taper ring (4, 54) and the outer circumferential surface (1a, 91b) of the shaft (1, 51) widens in accordance with leaving from the sleeve (9, 59) and forms a taper seal section (50TS, 50ATS) that prevents the lubrication fluid (20) from leaking out, and wherein the taper ring (4, 54) is formed by a material having coefficient of thermal expansion larger than that of the sleeve (9, 59) and the shaft (1, 51).

摘要翻译： 流体轴承装置（50B，50AB）由轴（1,51）构成。 套筒（9,59），轴（1,51）插入其中; 以及介于所述轴（1,51）和所述套筒（9,59）之间的间隙中的润滑流体（20），所述流体轴承装置（50B，50AB）支撑所述轴（1,51）以相对旋转 自由地相对于套筒（9,59），其中套筒（9,59）的端部设置有环形的锥形环（4,54），其中内圆周表面（ 锥形环（4,44）的内周面（4a，54a）和与所述锥形环（4,54）的内周面（4a，54a）相对的轴（1,51a）的外周面（1a，91b） ）形成为在锥环（4,54）的内周面（4a，54a）与外周面（1a，91b）之间的间隙的方向上倾斜的锥形面（4a，54a） 根据从套管（9,59）离开，轴（1,51）的宽度变宽，形成防止润滑流体（20）泄漏的锥形密封部分（50TS，50ATS），其中th 锥形环（4,54）由热膨胀系数大于套筒（9,59）和轴（1,51）的热膨胀系数的材料形成。

公开(公告)号：US20130216166A1

公开(公告)日：2013-08-22

申请号：US13400912

申请日：2012-02-21

申请人： Mitsuo KODAMA ,  Taketo Nonaka

发明人： Mitsuo KODAMA ,  Taketo Nonaka

IPC分类号： F16C32/06

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C33/103 ,  F16C2370/12 ,  G11B19/2009

摘要： The rotating device includes a fixing body having a shaft and a shaft holder fixing the shaft, a rotating body having a shaft encircling member with a cylinder part encircling a shaft and a disk part, and a middle encircling member encircling the cylinder part and facing the disk part via a clearance in the direction of a rotational axis, a radial dynamic pressure generating groove disposed in either one of a surface of the cylinder part and a surface of the shaft facing with each other in the radial direction, a thrust dynamic pressure generating groove disposed in either one of a surface of the disk part and a surface of the shaft holder facing with each other in the rotational axis direction, and a lubricant continuously present from a first air-liquid interface to a second air-liquid interface between the rotating body and the fixing body.

摘要翻译： 旋转装置包括具有轴的固定体和固定轴的轴保持架，具有轴环绕构件的旋转体，具有环绕轴的圆筒部和盘部，以及围绕圆筒部并且面向所述圆筒部的中间环绕构件 通过沿旋转轴线的方向通过间隙的圆盘部分，设置在所述圆筒部分的表面和所述轴的在径向方向上相对的表面中的任一个中的径向动压产生槽，产生推力动压力 凹槽，其布置在所述盘部分的表面中的任一个表面和所述轴保持器在旋转轴线方向上彼此面对的表面;以及润滑剂，其从所述第一空气 - 液体界面连续地存在于所述第二空气 - 液体界面之间， 旋转体和固定体。

公开(公告)号：US08608384B2

公开(公告)日：2013-12-17

申请号：US13400912

申请日：2012-02-21

申请人： Mitsuo Kodama ,  Taketo Nonaka

发明人： Mitsuo Kodama ,  Taketo Nonaka

IPC分类号： F16C32/06

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C33/103 ,  F16C2370/12 ,  G11B19/2009

摘要： The rotating device includes a fixing body having a shaft and a shaft holder fixing the shaft, a rotating body having a shaft encircling member with a cylinder part encircling a shaft and a disk part, and a middle encircling member encircling the cylinder part and facing the disk part via a clearance in the direction of a rotational axis, a radial dynamic pressure generating groove disposed in either one of a surface of the cylinder part and a surface of the shaft facing with each other in the radial direction, a thrust dynamic pressure generating groove disposed in either one of a surface of the disk part and a surface of the shaft holder facing with each other in the rotational axis direction, and a lubricant continuously present from a first air-liquid interface to a second air-liquid interface between the rotating body and the fixing body.

摘要翻译： 旋转装置包括具有轴的固定体和固定轴的轴保持架，具有轴环绕构件的旋转体，具有环绕轴的圆筒部和盘部，以及围绕圆筒部并且面向所述圆筒部的中间环绕构件 通过沿旋转轴线的方向通过间隙的圆盘部分，设置在所述圆筒部分的表面和所述轴的在径向方向上相对的表面中的任一个中的径向动压产生槽，产生推力动压力 凹槽，其布置在所述盘部分的表面中的任一个表面和所述轴保持器在旋转轴线方向上彼此面对的表面;以及润滑剂，其从所述第一空气 - 液体界面连续地存在于所述第二空气 - 液体界面之间， 旋转体和固定体。

公开(公告)号：US20130266463A1

公开(公告)日：2013-10-10

申请号：US13439440

申请日：2012-04-04

申请人： Mitsuo KODAMA ,  Taketo Nonaka ,  Akira Nishio

发明人： Mitsuo KODAMA ,  Taketo Nonaka ,  Akira Nishio

IPC分类号： F04D25/06

CPC分类号： F04D25/0613 ,  F04D29/329 ,  F04D29/646

摘要： A fan motor includes a static body, a rotating body that has a shaft, a hub encircling a first end of the shaft and joined with the first end, and a blade joined around an outer periphery of the hub, a sleeve that retains thereinside a portion of the shaft at a second end side, a rotating flange which encircles the sleeve and which rotates together with the hub, a static flange which is disposed in an area at a side of the first end of the shaft, and which is joined with the static body so as to overlap the rotating flange in a radial direction, a dynamic pressure generating groove provided in either one of surfaces of the static body and the rotating body facing with each other in the axial direction, and a lubricant present between the static body and the rotating body.

摘要翻译： 风扇电动机包括静止体，具有轴的旋转体，环绕轴的第一端并与第一端连接的轮毂，以及围绕轮毂的外周连接的叶片，保持在其外侧的套筒 所述轴的第二端侧的部分，环绕所述套筒并与所述毂一起旋转的旋转凸缘，设置在所述轴的所述第一端侧的区域中的静态凸缘，并且其与 所述静止体沿径向与所述旋转凸缘重叠，设置在所述静止体的所述表面和所述旋转体的轴向方向上彼此相对的表面中的任一个中的动压生成槽以及静态 身体和旋转体。

公开(公告)号：US20070071375A1

公开(公告)日：2007-03-29

申请号：US11525020

申请日：2006-09-22

申请人： Mitsuo Kodama ,  Taketo Nonaka

发明人： Mitsuo Kodama ,  Taketo Nonaka

IPC分类号： F16C32/06

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C2370/12

摘要： A fluid bearing device (50B, 50AB) is composed of a shaft (1, 51); a sleeve (9, 59) into which the shaft (1, 51) is inserted; and lubrication fluid (20) intervening in a gap between the shaft (1, 51) and the sleeve (9, 59), the fluid bearing device (50B, 50AB) supporting the shaft (1, 51) so as to be relatively rotatable freely with respect to the sleeve (9, 59), wherein an end portion of the sleeve (9, 59) is provided with a taper ring (4, 54) in annular shape, wherein at least either one of an inner circumferential surface (4a, 54a) of the taper ring (4, 54) and an outer circumferential surface (1a, 91b) of the shaft (1, 51) facing towards the inner circumferential surface (4a, 54a) of the taper ring (4, 54) is formed into a tapered surface (4a, 54a), which inclines in a direction as a gap between the inner circumferential surface (4a, 54a) of the taper ring (4, 54) and the outer circumferential surface (1a, 91b) of the shaft (1, 51) widens in accordance with leaving from the sleeve (9, 59) and forms a taper seal section (50TS, 50ATS) that prevents the lubrication fluid (20) from leaking out, and wherein the taper ring (4, 54) is formed by a material having coefficient of thermal expansion larger than that of the sleeve (9, 59) and the shaft (1, 51).

摘要翻译： 流体轴承装置（50B，50BB）由轴（1,51）构成。 套筒（9,59），轴（1,51）插入其中; 以及介于轴（1,51）和套筒（9,59）之间的间隙中的润滑流体（20），支撑轴（1,51）的流体轴承装置（50B，50BB），以便于 相对于套筒（9,59）相对自由地旋转，其中套筒（9,59）的端部设置有环形的锥形环（4,54），其中内圆周 所述锥形环（4,44）的表面（4a，54a）和所述轴（1,51）面向内周面（4a，54a）的外周面（1a，91b） 所述锥形环（4,44）形成为锥形表面（4a，54a），所述锥形表面（4a，54a）沿所述锥形环（4）的内圆周表面（4a，54a）之间的间隙倾斜， 54），并且轴（1,51）的外周面（1a，91b）根据从套筒（9,59）离开而变宽，并形成锥形密封部分（50TS，50ATS），其防止 路布里 阳离子流体（20）从泄漏出来，并且其中所述锥形环（4,44）由热膨胀系数大于套筒（9,59）和轴（1,51）的热膨胀系数的材料形成。

公开(公告)号：US08398308B2

公开(公告)日：2013-03-19

申请号：US12815289

申请日：2010-06-14

申请人： Taketo Nonaka ,  Toshiki Maeda

发明人： Taketo Nonaka ,  Toshiki Maeda

IPC分类号： F16C32/06 ,  F16C33/74

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C33/103 ,  F16C2240/40 ,  F16C2370/12

摘要： A bearing unit for a disk drive device is formed by a sleeve concave portion and a shaft concave portion, and is provided with a capillary seal portion in which the gap between the sleeve concave portion and the shaft concave portion is increased in diameter toward the hub side of the sleeve. Assuming that: the outer circumferential diameter at the tilt starting end on the base member side of the shaft concave portion is D0; the inner circumferential diameter at the tilt starting end on the hub side of the sleeve concave portion is D1; the facing outer circumferential diameter of the shaft concave portion, which faces, in the radial direction, the inner circumference at the tilt starting end of the sleeve concave portion, is D2; and the diameter of the most concave inner circumference of the sleeve concave portion is D3, D2 is smaller than D0, D3 is larger than D1, and the difference between D3 and D0 is larger than that between D0 and D2.

摘要翻译： 用于盘驱动装置的轴承单元由套筒凹部和轴凹部形成，并且设置有毛细管密封部，毛细管密封部中套筒凹部与轴凹部之间的间隙直径朝向轮毂 袖子的一侧。 假设：轴凹部的基体侧的倾斜起始端的外周径为D0; 套筒凹部的轮毂侧的倾斜起始端的内周径为D1; 在轴向凹部的倾斜起始端的径向的内周面上的轴凹部的面向外周径为D2， 并且套筒凹部的最凹陷的内周的直径为D3，D2小于D0，D3大于D1，D3和D0之间的差大于D0和D2之间的差。