公开(公告)号：US06830248B2

公开(公告)日：2004-12-14

申请号：US10311630

申请日：2002-12-18

申请人： Yoshimi Imamoto ,  Hiroshi Anzai

发明人： Yoshimi Imamoto ,  Hiroshi Anzai

IPC分类号： F16J1543

CPC分类号： F16J15/43 ,  G02B7/02 ,  G02B7/20

摘要： A high-performance magnetic fluid sealer which maintains light-shielding property even when an interval change of a gap is large and a method for easily mounting a magnetic fluid sealer. A pair of annular magnets are supported by levitation from a lens barrel by magnetic levitation force which a magnetic fluid imparts in a fitting groove in the inner peripheral face of a lens barrel. Therefore, even when the lens barrel is greatly eccentric to the lens barrel, the pair of annular magnets move radially so as to keep a constant gap from the lens barrel with the magnetic fluid.

摘要翻译： 即使当间隙的间隔变化大时也能够保持遮光性的高性能的磁性流体密封剂以及容易地安装磁性流体密封剂的方法。 一对环形磁体通过磁悬浮力从镜筒悬浮而被支撑，磁性流体在透镜镜筒的内周面中的配合凹槽中施加。 因此，即使当透镜镜筒对透镜镜筒偏心时，一对环形磁体也能径向移动，从而与透镜镜筒保持与磁性流体的恒定间隙。

公开(公告)号：US07100923B2

公开(公告)日：2006-09-05

申请号：US10477760

申请日：2002-05-22

申请人： Hiroshi Anzai ,  Takao Kanno ,  Yoshimi Imamoto

发明人： Hiroshi Anzai ,  Takao Kanno ,  Yoshimi Imamoto

IPC分类号： F16J15/43

CPC分类号： F16J15/43

摘要： A magnetic fluid seal device that increases a permissible value of eccentricity for two members to improve sealability and decreases a variation of quality by injecting a magnetic fluid before assembling of parts, that saves structural members to achieve thinning, and that is easy to produce. An annular magnet 3 is buoyantly supported by the magnetic fluid 4 and 5 retained, and the space between a housing 1 and a shaft 2 is sealed by the annular magnet 3 and magnetic fluid 4 and 5.

摘要翻译： 一种磁性流体密封装置，其通过在组装零件之前注入磁性流体而增加两个构件的偏心度的允许值以提高密封性，并且通过在组装零件之前注入磁性流体来减小质量变化，从而节省结构构件以实现变薄，并且易于制造。 环形磁体3被保持的磁性流体4和5浮力地支撑，壳体1和轴2之间的空间被环形磁体3和磁性流体4,5分隔开。

公开(公告)号：US06733143B1

公开(公告)日：2004-05-11

申请号：US09926649

申请日：2001-11-28

申请人： Hiroshi Anzai ,  Takemi Namba ,  Hirokazu Yamamoto ,  Yoshimi Imamoto ,  Takao Kanno

发明人： Hiroshi Anzai ,  Takemi Namba ,  Hirokazu Yamamoto ,  Yoshimi Imamoto ,  Takao Kanno

IPC分类号： G02B2700

CPC分类号： G02B7/20 ,  F16J15/43

摘要： There is provided a light shielding apparatus with a light shielding seal 1 that reduces a sliding resistance and, at the same time, improves light shielding property and realizes saving of a space. There is provided a light shielding structure that is provided between a plurality of members 13 and 14, which are arranged to be able to move relatively to each other spaced a predetermined distance apart, and is capable of preventing light from entering from a gap to be formed between these plurality of members 13 and 14, having magnetic force generating means 2 and 3 that are disposed in any one of the above-mentioned plurality of members 13 and 14 and magnetic fluid 4 which is magnetically held by the magnetic force generating means 2 and 3 and contacts the other member and shielding a gap, which is formed between the above-mentioned plurality of members 13 and 14, by the above-mentioned magnetic fluid 4.

摘要翻译： 提供了一种具有遮光密封件1的遮光装置，其减小了滑动阻力，同时提高了遮光性能并实现了空间的节省。 提供了一种遮光结构，其设置在多个构件13和14之间，所述多个构件13和14被布置成能够相对于彼此间隔开预定距离相对移动，并且能够防止光从间隙进入 形成在这些多个构件13和14之间，具有设置在上述多个构件13和14中的任一个中的磁力产生装置2和3以及由磁力产生装置2磁力保持的磁性流体4 并且通过上述磁性流体4与另一个构件接触并屏蔽形成在上述多个构件13和14之间的间隙。

公开(公告)号：US20100038864A1

公开(公告)日：2010-02-18

申请号：US12440402

申请日：2007-08-08

申请人： Yoshihiro Kuzumaki ,  Yuichi Shuto ,  Yoshimi Imamoto

发明人： Yoshihiro Kuzumaki ,  Yuichi Shuto ,  Yoshimi Imamoto

IPC分类号： F16J15/32

CPC分类号： F16J15/3232 ,  F16C33/7823 ,  F16C33/7876 ,  F16C2326/02

摘要： A sealing device with a side lip contacting with a surface angled relative to its axis in which the cross sectional shape of the side lip is optimized. Where the thickness of the tip end (5c) of the side lip (5) is T1, the thickness of the base (5a) of the lip (5) is T3, the length of the tip end (5c) is L1, and the length of the base (5a) is L2, T1/T3 is set to be not less than 0.7 and less than 0.8 and L2/L1 is set to be not less than 0.5 and less than 0.6.

摘要翻译： 密封装置，其具有与相对于其轴线成角度的表面接触的侧唇，其中侧唇的横截面形状被优化。 在侧唇（5）的前端（5c）的厚度为T1的情况下，唇部（5）的基部（5a）的厚度为T3，前端（5c）的长度为L1， 基部（5a）的长度为L2，T1 / T3设定为0.7以上且小于0.8，L2 / L1设定为0.5以上且0.6以下。

公开(公告)号：US20100201078A1

公开(公告)日：2010-08-12

申请号：US12439808

申请日：2007-10-05

申请人： Yoshihiro Kuzumaki ,  Yuichi Shuto ,  Yoshimi Imamoto

发明人： Yoshihiro Kuzumaki ,  Yuichi Shuto ,  Yoshimi Imamoto

IPC分类号： F16J15/32

CPC分类号： F16J15/3232 ,  F16C19/00 ,  F16C33/7823 ,  F16C33/7876 ,  F16C2326/02 ,  F16J15/3456

摘要： A sealing device includes a side lip contacting with a surface angled to the axis. To optimize the cross sectional shape of the side lip, T1/T3 is set to not less than 0.5 and less than 0.8 and L2/L1 is set to 0.2 to 0.4, where the thickness of the lip end (5c) of the side lip (5) is T1, the thickness of the lip base (5a) is T3, the length of the lip end (5c) is L1, and the length of the lip base (5a) is L2. Further, in a sealing device which includes a side lip (5) contacting with a surface angled to the axis over its contact width, the maximum value of the surface pressure in the side lip (5) is set at the most leading end (5d) of the lip.

摘要翻译： 密封装置包括与与轴成角度的表面接触的侧唇。 为了优化侧唇的横截面形状，将T1 / T3设定为不小于0.5且小于0.8，并且将L2 / L1设定为0.2至0.4，其中侧唇的唇端（5c）的厚度 （5）为T1时，唇基（5a）的厚度为T3，唇端（5c）的长度为L1，唇基（5a）的长度为L2。 此外，在包括与在其接触宽度上与轴线成一定角度的表面接触的侧唇（5）的密封装置中，侧唇（5）中的表面压力的最大值被设定在最前端（5d） ）的嘴唇。