公开(公告)号：US07648281B2

公开(公告)日：2010-01-19

申请号：US11583800

申请日：2006-10-20

申请人： Rikuro Obara ,  Kyoji Kato

发明人： Rikuro Obara ,  Kyoji Kato

IPC分类号： F16C32/06

CPC分类号： F16C17/10 ,  F16C17/045 ,  F16C33/103 ,  F16C33/745

摘要： A fluid dynamic bearing is provided. A structure in which a shaft member and an annular member fitted about the shaft member are rotatably supported by a bearing member and an annular member on the bearing member has a fifth gap for storing a lubricating fluid and supplying it to a second gap below the annular member on the shaft member and a third gap around its outer periphery through a fourth gap. The fourth and fifth gaps are tapered to produce a capillary drawing force toward the third and second gaps, so that the lubricating fluid may be supplied effectively from the fifth gap to the second and third gaps. This makes it possible to suppress any sudden formation of a reduced pressure upon exposure to impact or vibration to prevent the leakage of any lubricating fluid caused by the generation of bubbles, while making up for the loss of any lubricating fluid by vaporization.

摘要翻译： 提供流体动力轴承。 其中轴构件和围绕轴构件安装的环形构件由轴承构件可旋转地支撑并且在轴承构件上的环形构件的结构具有用于存储润滑流体并将其提供到环形以下的第二间隙的第五间隙 构件，并且通过第四间隙围绕其外周缘具有第三间隙。 第四和第五间隙是锥形的，以产生朝向第三和第二间隙的毛细抽吸力，使得润滑流体可以有效地从第五间隙供应到第二和第三间隙。 这使得可以在暴露于冲击或振动时抑制任何突然形成的减压，以防止由于产生气泡而导致的润滑流体的泄漏，同时弥补通过汽化而导致的任何润滑流体的损失。

公开(公告)号：US20070092172A1

公开(公告)日：2007-04-26

申请号：US11583800

申请日：2006-10-20

申请人： Rikuro Obara ,  Kyoji Kato

发明人： Rikuro Obara ,  Kyoji Kato

IPC分类号： F16C32/06

CPC分类号： F16C17/10 ,  F16C17/045 ,  F16C33/103 ,  F16C33/745

摘要： A fluid dynamic bearing is provided. A structure in which a shaft member and an annular member fitted about the shaft member are rotatably supported by a bearing member and an annular member on the bearing member has a fifth gap for storing a lubricating fluid and supplying it to a second gap below the annular member on the shaft member and a third gap around its outer periphery through a fourth gap. The fourth and fifth gaps are tapered to produce a capillary drawing force toward the third and second gaps, so that the lubricating fluid may be supplied effectively from the fifth gap to the second and third gaps. This makes it possible to suppress any sudden formation of a reduced pressure upon exposure to impact or vibration to prevent the leakage of any lubricating fluid caused by the generation of bubbles, while making up for the loss of any lubricating fluid by vaporization.

摘要翻译： 提供流体动力轴承。 其中轴构件和围绕轴构件安装的环形构件由轴承构件可旋转地支撑并且在轴承构件上的环形构件的结构具有用于存储润滑流体并将其提供到环形以下的第二间隙的第五间隙 构件，并且通过第四间隙围绕其外周缘具有第三间隙。 第四和第五间隙是锥形的，以产生朝向第三和第二间隙的毛细抽吸力，使得润滑流体可以有效地从第五间隙供应到第二和第三间隙。 这使得可以在暴露于冲击或振动时抑制任何突然形成的减压，以防止由于产生气泡而导致的润滑流体的泄漏，同时弥补通过汽化而导致的任何润滑流体的损失。

公开(公告)号：US5333957A

公开(公告)日：1994-08-02

申请号：US18088

申请日：1993-02-16

申请人： Kee K. Yip ,  Hirofumi Shigenobu ,  Kyoji Kato ,  Takuya Sato ,  Nobuo Yagami

发明人： Kee K. Yip ,  Hirofumi Shigenobu ,  Kyoji Kato ,  Takuya Sato ,  Nobuo Yagami

IPC分类号： F16C33/78 ,  F16C33/76

CPC分类号： F16C33/7853 ,  F16C2300/12

摘要： In a ball bearing, a shielding plate (5), which is injection-molded into one piece from a polyacetal resin which is adequate in all of rigidity, Flexibility and resiliency, is interposed between an inner race (1) and an outer race (2) in a side off the bearing to protect the interior of the bearing from dust and moisture. In assembling, the shielding plate ( 5 ) has its outer peripheral portion resiliently deformed and fitted into an inner annular groove (2a) of the outer race (2), and does not affect the outer race (2) in dimension thereof at all after completion of the assembling.

摘要翻译： 在滚珠轴承中，从内侧座圈（1）和外座圈（1）和内座圈（1）之间插入由聚合树脂注射成型而成的全部刚性，弹性和弹性足够的遮蔽板（5） 2）在轴承的一侧，以保护轴承内部免受灰尘和潮湿。 在组装时，屏蔽板（5）的外周部分弹性变形并装配到外座圈（2）的内环形槽（2a）中，并且在其外侧不会影响外圈（2）的尺寸 完成组装。