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1. 发明授权

US07371010B2 Hydrodynamic bearing device and compact motor including hydrodynamic bearing device 有权
标题翻译：流体动力轴承装置和紧凑型电动机，包括流体动力轴承装置
公开(公告)号：US07371010B2
公开(公告)日：2008-05-13
申请号：US11305163
申请日：2005-12-19
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C17/026 , F16C33/107 , F16C2370/12 , H02K5/1675
摘要： A shaft is rotatably inserted through a bearing hole of a sleeve, a screw hole for fastening a clamp to the shaft is formed along a direction of an axis from an upper end portion of the shaft, an operating fluid is charged in a gap between an inner peripheral surface of the sleeve and an outer peripheral surface of the shaft, and radial bearing parts constituted of dynamic pressure generating grooves are provided on the inner peripheral surface of the sleeve. As for an inside diameter of the sleeve, an inside diameter in a predetermined range from the opening upper end part is formed to be larger by an expected deformation amount in a diameter direction of the shaft than an inside diameter in a range at a lower end side from the predetermined range. The predetermined range corresponds to a range including a radial bearing part located at the upper end side.
摘要翻译：轴可旋转地插入穿过套筒的轴承孔，从轴的上端部沿着轴线的方向形成用于将夹具紧固到轴的螺孔，工作流体被填充在轴的间隙中套筒的内周面和轴的外周面以及由动压产生槽构成的径向轴承部分设置在套筒的内周面上。对于套筒的内径，从开口上端部的预定范围内的内径形成为比轴的直径方向上的期望变形量大于在下端的范围内的内径侧从预定范围。预定范围对应于包括位于上端侧的径向轴承部的范围。

2. 发明授权

US07241050B2 Hydrodynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US07241050B2
公开(公告)日：2007-07-10
申请号：US11189827
申请日：2005-07-27
申请人： Kaoru Uenosono , Yosei Yoshikawa , Akira Sakata , Takafumi Asada
发明人： Kaoru Uenosono , Yosei Yoshikawa , Akira Sakata , Takafumi Asada
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C33/726 , F16C33/745 , F16C2240/40 , F16C2370/12
摘要： A hydrodynamic bearing device in which an introducing minimum clearance for causing capillary phenomenon is formed from the location in the proximity of the opening of a communicating path to the open end of the bearing hole in between the cover and the end face on the open end of the sleeve so that the operating fluid from the communicating path in the sleeve flows into the bearing hole by the capillary phenomenon; a vent hole leading to the outside air is formed on the cover; a fluid storage space for storing the operating fluid is formed on the inside surface of the cover or the end face on the open end of the sleeve to communicate the introducing minimum clearance and the vent hole in the circumferential direction; and the air bubbles separated at the fluid storage space are exhausted outward from the vent hole.
摘要翻译：一种流体动力轴承装置，其中从连接路径的开口附近的位置到在盖和开口端之间的端面之间的轴承孔的开口端的位置处形成用于引起毛细现象的引入最小间隙使得来自套筒中的连通路径的工作流体通过毛细管现象流入轴承孔; 在盖上形成通向外部空气的通气孔; 在套筒的内表面或套筒的开口端的端面上形成用于储存工作流体的流体储存空间，以在周向上连通引入最小间隙和通气孔; 并且在流体存储空间分离的气泡从通气孔向外排出。

3. 发明申请

US20060133704A1 Hydrodynamic bearing device and spindle motor 有权
标题翻译：流体动力轴承装置和主轴电机
公开(公告)号：US20060133704A1
公开(公告)日：2006-06-22
申请号：US11296538
申请日：2005-12-08
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , F16C33/1085 , F16C43/02
摘要： The invention provides a hydrodynamic bearing device with a function of circulating the operating fluid by supplying the operating fluid to between the cover and the sleeve by way of a circular communication path, the hydrodynamic bearing device allowing the cover for covering the sleeve to be satisfactorily bonded, preventing the operating fluid from leaking outward, and preventing the adhesive from blocking the opening of the circular communication path; and a spindle motor. An adhesive inflow allowing space for allowing the adhesive from the adhesive setting and bonding part to flow in is formed between the adhesive setting and bonding part for setting the adhesive and bonding the cover and the sleeve, and a space region on the open end side between the cover and the sleeve for circulating and introducing the operating fluid so as to create a space in the cover.
摘要翻译：本发明提供了一种流体动力轴承装置，其具有通过通过圆形连通路径将操作流体供应到盖和套筒之间来循环工作流体的功能，允许盖覆盖套筒的流体动力轴承装置令人满意地结合防止工作流体向外泄漏，防止粘合剂堵塞圆形连通路径的开口; 和主轴电机。在粘合剂凝固和粘合部分之间形成用于使粘合剂从粘合剂凝固和粘合部分流入的粘合剂流入允许空间，用于设置粘合剂并粘合盖和套筒，并且在开口端侧之间的间隔区域所述盖和所述套筒用于循环和引入所述工作流体，以在所述盖中产生空间。

4. 发明申请

US20090103841A1 Hydrodynamic bearing device and inspection method of amount of working fluid 审中-公开
标题翻译：流体动力轴承装置和工作液量检查方法
公开(公告)号：US20090103841A1
公开(公告)日：2009-04-23
申请号：US12314573
申请日：2008-12-12
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C17/243 , F16C33/103 , F16C33/726 , F16C33/745 , F16C2370/12
摘要： A hydrodynamic bearing device in a hydrodynamic bearing device in which a sleeve (2) is covered with a cover (5), which is capable of easily confirming that a working fluid is favorably filled between the cover and the sleeve, and easily confirming that an adhesive (21) which bonds the cover and the sleeve is favorably filled, and an inspection method of an amount of the working fluid are provided. By using the cover having translucency, the filled state of the working fluid is visually recognized through the cover, and is confirmed with an image recognition apparatus.
摘要翻译：一种流体动力轴承装置中的流体动力轴承装置，其中套筒（2）被盖（5）覆盖，所述盖（5）能够容易地确认工作流体有利地填充在盖和套筒之间，并且容易地确认粘合剂封盖和套筒的粘合剂（21）有利地被填充，并且提供了工作流体的量的检查方法。通过使用具有半透明度的盖，通过盖子目视识别工作流体的填充状态，并且用图像识别装置确认。

5. 发明申请

US20090116148A1 HYDRODYNAMIC BEARING DEVICE AND SPINDLE MOTOR EQUIPPED WITH SAME, AND INFORMATION APPARATUS 审中-公开
标题翻译：装有水动力轴承装置和配有其的主动马达和信息装置
公开(公告)号：US20090116148A1
公开(公告)日：2009-05-07
申请号：US12259519
申请日：2008-10-28
申请人： Hisaaki Yano , Hiroshi Nishiyama , Yosei Yoshikawa , Kaoru Uenosono
发明人： Hisaaki Yano , Hiroshi Nishiyama , Yosei Yoshikawa , Kaoru Uenosono
IPC分类号： G11B17/32 , F16C32/06 , H02K5/167
CPC分类号： F16C33/103 , F16C17/107 , F16C33/107 , F16C2370/12 , H02K5/1675
摘要： A hydrodynamic bearing device (30) comprises a shaft (31), a sleeve (32) in which the shaft (31) is installed so as to be able to rotate in relative fashion, a lubricant (34) filled into a minute gap between the shaft (31) and the sleeve (32), a sleeve cover (35) attached to the upper end surface of the sleeve (32), a lubricant reservoir (50) for retaining the lubricant (34) between the sleeve (32) and the sleeve cover (35), and flow suppressing parts (51a, 51b) formed inside the lubricant reservoir (50) so as to protrude in an axial direction.
摘要翻译：流体动力轴承装置（30）包括轴（31），套筒（32），轴（31）安装在轴（31）中以便能够以相对方式旋转，润滑剂（34）填充到所述轴（31）和所述套筒（32），连接到所述套筒（32）的上端表面的套筒盖（35），用于将所述润滑剂（34）保持在所述套筒（32）和套筒盖35，以及形成在润滑剂储存器50内的轴向突出的流动抑制部51a，51b。

6. 发明授权

US07350975B2 Hydrodynamic bearing device and spindle motor 有权
标题翻译：流体动力轴承装置和主轴电机
公开(公告)号：US07350975B2
公开(公告)日：2008-04-01
申请号：US11296538
申请日：2005-12-08
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , F16C33/1085 , F16C43/02
摘要： The invention provides a hydrodynamic bearing device with a function of circulating the operating fluid by supplying the operating fluid to between the cover and the sleeve by way of a circular communication path, the hydrodynamic bearing device allowing the cover for covering the sleeve to be satisfactorily bonded, preventing the operating fluid from leaking outward, and preventing the adhesive from blocking the opening of the circular communication path; and a spindle motor. An adhesive inflow allowing space for allowing the adhesive from the adhesive setting and bonding part to flow in is formed between the adhesive setting and bonding part for setting the adhesive and bonding the cover and the sleeve, and a space region on the open end side between the cover and the sleeve for circulating and introducing the operating fluid so as to create a space in the cover.
摘要翻译：本发明提供了一种流体动力轴承装置，其具有通过通过圆形连通路径将操作流体供应到盖和套筒之间来循环工作流体的功能，允许盖覆盖套筒的流体动力轴承装置令人满意地结合防止工作流体向外泄漏，防止粘合剂堵塞圆形连通路径的开口; 和主轴电机。在粘合剂凝固和粘合部分之间形成用于使粘合剂从粘合剂凝固和粘合部分流入的粘合剂流入允许空间，用于设置粘合剂并粘合盖和套筒，并且在开口端侧之间的间隔区域所述盖和所述套筒用于循环和引入所述工作流体，以在所述盖中产生空间。

7. 发明申请

US20060023982A1 Hydrodynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20060023982A1
公开(公告)日：2006-02-02
申请号：US11189827
申请日：2005-07-27
申请人： Kaoru Uenosono , Yosei Yoshikawa , Akira Sakata , Takafumi Asada
发明人： Kaoru Uenosono , Yosei Yoshikawa , Akira Sakata , Takafumi Asada
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C33/726 , F16C33/745 , F16C2240/40 , F16C2370/12
摘要： A hydrodynamic bearing device in which an introducing minimum clearance for causing capillary phenomenon is formed from the location in the proximity of the opening of a communicating path to the open end of the bearing hole in between the cover and the end face on the open end of the sleeve so that the operating fluid from the communicating path in the sleeve flows into the bearing hole by the capillary phenomenon; a vent hole leading to the outside air is formed on the cover; a fluid storage space for storing the operating fluid is formed on the inside surface of the cover or the end face on the open end of the sleeve to communicate the introducing minimum clearance and the vent hole in the circumferential direction; and the air bubbles separated at the fluid storage space are exhausted outward from the vent hole.
摘要翻译：一种流体动力轴承装置，其中从连接路径的开口附近的位置到在盖和开口端之间的端面之间的轴承孔的开口端的位置处形成用于引起毛细现象的引入最小间隙使得来自套筒中的连通路径的工作流体通过毛细管现象流入轴承孔; 在盖上形成通向外部空气的通气孔; 在套筒的内表面或套筒的开口端的端面上形成用于储存工作流体的流体储存空间，以使周向上的引入最小间隙和通气孔相通; 并且在流体存储空间分离的气泡从通气孔向外排出。

8. 发明授权

US07513688B2 Hydrodynamic bearing device and inspection method of amount of working fluid 有权
公开(公告)号：US07513688B2
公开(公告)日：2009-04-07
申请号：US11294445
申请日：2005-12-06
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C17/243 , F16C33/103 , F16C33/726 , F16C33/745 , F16C2370/12
摘要： A hydrodynamic bearing device in a hydrodynamic bearing device in which a sleeve (2) is covered with a cover (5), which is capable of easily confirming that a working fluid is favorably filled between the cover and the sleeve, and easily confirming that an adhesive (21) which bonds the cover and the sleeve is favorably filled, and an inspection method of an amount of the working fluid are provided. By using the cover having translucency, the filled state of the working fluid is visually recognized through the cover, and is confirmed with an image recognition apparatus.

9. 发明申请

US20060140521A1 Hydrodynamic bearing device and compact motor including hydrodynamic bearing device 有权
标题翻译：流体动力轴承装置和紧凑型电动机，包括流体动力轴承装置
公开(公告)号：US20060140521A1
公开(公告)日：2006-06-29
申请号：US11305163
申请日：2005-12-19
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C17/026 , F16C33/107 , F16C2370/12 , H02K5/1675
摘要： A shaft is rotatably inserted through a bearing hole of a sleeve, a screw hole for fastening a clamp to the shaft is formed along a direction of an axis from an upper end portion of the shaft, an operating fluid is charged in a gap between an inner peripheral surface of the sleeve and an outer peripheral surface of the shaft, and radial bearing parts constituted of dynamic pressure generating grooves are provided on the inner peripheral surface of the sleeve. As for an inside diameter of the sleeve, an inside diameter in a predetermined range from the opening upper end part is formed to be larger by an expected deformation amount in a diameter direction of the shaft than an inside diameter in a range at a lower end side from the predetermined range. The predetermined range corresponds to a range including a radial bearing part located at the upper end side.
摘要翻译：轴可旋转地插入穿过套筒的轴承孔，从轴的上端部沿着轴线的方向形成用于将夹具紧固到轴的螺孔，工作流体被填充在轴的间隙中套筒的内周面和轴的外周面以及由动压产生槽构成的径向轴承部分设置在套筒的内周面上。对于套筒的内径，从开口上端部的预定范围内的内径形成为比轴的直径方向上的期望变形量大于在下端的范围内的内径侧从预定范围。预定范围对应于包括位于上端侧的径向轴承部的范围。

10. 发明申请

US20060126979A1 Hydrodynamic bearing device and inspection method of amount of working fluid 有权
标题翻译：流体动力轴承装置和工作液量检查方法
公开(公告)号：US20060126979A1
公开(公告)日：2006-06-15
申请号：US11294445
申请日：2005-12-06
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C17/243 , F16C33/103 , F16C33/726 , F16C33/745 , F16C2370/12
摘要： A hydrodynamic bearing device in a hydrodynamic bearing device in which a sleeve (2) is covered with a cover (5), which is capable of easily confirming that a working fluid is favorably filled between the cover and the sleeve, and easily confirming that an adhesive (21) which bonds the cover and the sleeve is favorably filled, and an inspection method of an amount of the working fluid are provided. By using the cover having translucency, the filled state of the working fluid is visually recognized through the cover, and is confirmed with an image recognition apparatus.
摘要翻译：一种流体动力轴承装置中的流体动力轴承装置，其中套筒（2）被盖（5）覆盖，所述盖（5）能够容易地确认工作流体有利地填充在盖和套筒之间，并且容易地确认粘合剂封盖和套筒的粘合剂（21）有利地被填充，并且提供了工作流体的量的检查方法。通过使用具有半透明度的盖，通过盖子目视识别工作流体的填充状态，并且用图像识别装置确认。

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