公开(公告)号：US06485179B1

公开(公告)日：2002-11-26

申请号：US09656077

申请日：2000-09-06

申请人： Takeshi Takahashi ,  Yasuo Takamura ,  Daiji Hiraoka

发明人： Takeshi Takahashi ,  Yasuo Takamura ,  Daiji Hiraoka

IPC分类号： F16C3372

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C2300/02

摘要： A dynamic pressure bearing is provided in which leakage of liquid lubricant due to precession of a housing can be prevented from occurring. In the dynamic pressure bearing, the inner diameter of a tapered inner peripheral face 20 of the housing 1 which constitutes a capillary sealing portion 23 is gradually increased as moving from an opening 17 toward the inner area in the axial direction. When the housing 1 is rotated, therefore, a centrifugal force applied on liquid lubricant existing on the tapered inner peripheral face 20 acts in the direction along which the liquid lubricant is pushed toward the inner area, as indicated by an arrow 19. Consequently, the centrifugal force which is due to precession of the housing 1, and which pushes the liquid lubricant 15 toward the outside as indicated by an arrow 29 can be cancelled by the force acting in the direction toward the inner area, with the result that leakage of the liquid lubricant due to precession of the housing 1 can be prevented from occurring.

摘要翻译： 提供动态压力轴承，其中可以防止由于壳体的进动而导致的液体润滑剂的泄漏。 在动压轴承中，构成毛细管密封部23的壳体1的锥形内周面20的内径随着从开口17向轴向的内侧区域移动而逐渐增大。 因此，当壳体1旋转时，施加在锥形内周面20上的液体润滑剂上的离心力沿箭头19所示向液体润滑剂被推向内侧的方向作用。因此， 由于壳体1的进动引起的离心力，如箭头29所示将液体润滑剂15推向外部的离心力可以通过朝向内部区域的方向作用的力来抵消，结果是泄漏 可以防止由于壳体1的进动引起的液体润滑剂的发生。

公开(公告)号：US5787579A

公开(公告)日：1998-08-04

申请号：US796812

申请日：1997-02-06

申请人： Takeshi Takahashi ,  Yasuo Takamura

发明人： Takeshi Takahashi ,  Yasuo Takamura

IPC分类号： F16C17/04 ,  F16C33/10 ,  F16C33/14 ,  B21D22/00

CPC分类号： F16C33/107 ,  F16C17/045 ,  Y10T29/49673

摘要： A dynamic pressure bearing has a large load-carrying capacity, and a ridge portion defined between adjacent grooves is prevented from damaging an opposite surface. The bearing includes an axial bearing surface having dynamic pressure generating grooves formed thereon by plastic working. The bearing has ridge portions defined between the adjacent dynamic pressure generating grooves. A top end of the ridge portion has rounded edge portions and a flat bearing surface defined between the edge portions. Since the edge portions of the top end are rounded, an opposite surface is prevented from being damaged. Further, the presence of the flat bearing surface defined between the edge portions results in increased load-carrying capacity.

摘要翻译： 动压轴承具有大的承载能力，并且防止相邻槽之间限定的脊部损坏相对的表面。 轴承包括具有通过塑性加工在其上形成的动态压力产生槽的轴向轴承表面。 轴承具有限定在相邻动压产生槽之间的脊部。 脊部的顶端具有圆形边缘部分和限定在边缘部分之间的平坦支承表面。 由于顶端的边缘部分是圆形的，所以防止相反的表面被损坏。 此外，限定在边缘部分之间的平坦轴承表面的存在导致增加的承载能力。

公开(公告)号：US06499882B2

公开(公告)日：2002-12-31

申请号：US09842220

申请日：2001-04-25

申请人： Takeshi Takahashi ,  Yasuo Takamura

发明人： Takeshi Takahashi ,  Yasuo Takamura

IPC分类号： F16C1710

CPC分类号： F16C35/02

摘要： The improved sliding bearing provides fitting of a cap into a sleeve with steadily fixation of adhesive, and prevention of the remained adhesive outside of the desired area. The sliding bearing comprises a sleeve, a shaft enclosed in said sleeve, and, a cap fitted into the sleeve, the sleeve having a shouldered hole with a first shoulder on which the cap is held, wherein the internal circumferential surface of the sleeve or the external circumferential surface of the cap includes a second shoulder circumferentially formed thereon. The second shoulder of the sleeve is of an outer diameter larger than the diameter of the cap, and an inner diameter approximately same as or slightly larger than the outer diameter of the cap, while the second shoulder of the cap is of an inner diameter smaller than that of the sleeve, and an outer diameter approximately same as or slightly smaller than the inner diameter of the sleeve.

摘要翻译： 改进的滑动轴承提供了将帽安装到套筒中，并稳定地固定粘合剂，并且防止在所需区域外保留的粘合剂。 滑动轴承包括套筒，封闭在所述套筒中的轴和装配到套筒中的帽，所述套筒具有肩部孔，所述第一肩部保持在所述第一肩部上，所述套筒的内周表面或 盖的外周表面包括周向形成在其上的第二肩部。 套筒的第二肩部的外径大于盖的直径，内径大约等于或略大于盖的外径，而帽的第二肩部的内径较小 与套筒的外径大致相同或略小于套筒的内径的外径。

公开(公告)号：US20070183694A1

公开(公告)日：2007-08-09

申请号：US11655906

申请日：2007-01-22

申请人： Takeharu Ogimoto ,  Masayoshi Onishi ,  Takeshi Takahashi ,  Yasuo Takamura ,  Shinji Matsue

发明人： Takeharu Ogimoto ,  Masayoshi Onishi ,  Takeshi Takahashi ,  Yasuo Takamura ,  Shinji Matsue

IPC分类号： F16C32/06

CPC分类号： G01M13/04

摘要： First, an axial clearance is measured. Next, lubricating oil is filled between a sleeve and a shaft, and the shaft is disposed such that a flange is positioned above a shank. Further, in a state where the shaft rotates at a rated rotation speed (a predetermined rotation speed), an axial clearance b between the flange and a surface facing a receiving surface of the flange through a flange housing space in the sleeve is measured. Finally, a dynamic pressure bearing satisfying the condition 0.3≦b/a≦0.55 is judged as a dynamic pressure bearing not having leakage of lubricating oil and abnormal abrasion.

摘要翻译： 首先，测量轴向游隙。 接下来，润滑油被填充在套筒和轴之间，并且轴被布置成使得凸缘位于柄上方。 此外，在轴以额定转速（预定转速）旋转的状态下，测量凸缘与面对凸缘的容纳表面的表面之间的轴向间隙b，通过套筒中的凸缘容纳空间。 最后，满足条件0.3 <= b / a <= 0.55的动态压力轴承被判定为没有润滑油泄漏和异常磨损的动压轴承。

公开(公告)号：US5628568A

公开(公告)日：1997-05-13

申请号：US586402

申请日：1996-01-16

申请人： Takeshi Takahashi ,  Yasuo Takamura

发明人： Takeshi Takahashi ,  Yasuo Takamura

IPC分类号： F16C17/04 ,  F16C33/10 ,  F16C33/14

CPC分类号： F16C33/107 ,  F16C17/045 ,  Y10T29/49673

摘要： There is provided a dynamic pressure bearing which has a large load-carrying capacity and in which a ridge portion defined between adjacent grooves is prevented from damaging an opposite surface. The bearing includes an axial bearing surface having dynamic pressure generating grooves formed thereon by plastic working. The bearing has ridge portions defined between the adjacent dynamic pressure generating grooves. A top end of the ridge portion has rounded edge portions and a flat bearing surface defined between the edge portions. Since the edge portions of the top end are rounded, an opposite surface is prevented from being damaged. Further, the presence of the flat bearing surface defined between the edge portions results in increased load-carrying capacity.

摘要翻译： 提供了具有大承载能力的动压轴承，其中防止相邻槽之间限定的脊部损坏相对表面。 轴承包括具有通过塑性加工在其上形成的动态压力产生槽的轴向轴承表面。 轴承具有限定在相邻动压产生槽之间的脊部。 脊部的顶端具有圆形边缘部分和限定在边缘部分之间的平坦支承表面。 由于顶端的边缘部分是圆形的，所以防止相反的表面被损坏。 此外，限定在边缘部分之间的平坦轴承表面的存在导致增加的承载能力。

公开(公告)号：US06361216B1

公开(公告)日：2002-03-26

申请号：US09609417

申请日：2000-07-05

申请人： Takeshi Takahashi ,  Yasuo Takamura

发明人： Takeshi Takahashi ,  Yasuo Takamura

IPC分类号： F16C3206

CPC分类号： F16C33/107 ,  F16C17/107

摘要： A dynamic pressure bearing which can eliminate an unbalanced existence of a lubricant fluid without increasing the diameter of a flange is compact in size and requires a lower rotation torque. The dynamic pressure bearing, axial through holes 21 and 22 of a flange 2 are formed so as to be adjacent to a smaller diameter portion 1B of a shaft 1, and to be opposed to an end face 1A-1 of a larger diameter portion 1A. Thus, the axial through holes 21 and 22 do not reduce the area for forming a bearing surface of the flange 2, so that the unbalanced existence of a lubricant fluid can be eliminated by the axial through holes 21 and 22 without degrading the thrust supporting ability. The diameter of the flange can be reduced, and a stable supporting ability can be attained, and a compact size and a low rotation torque can be realized.

摘要翻译： 能够消除润滑剂流体的不平衡存在而不增加凸缘直径的动态压力轴承尺寸紧凑，并且需要较低的旋转扭矩。凸缘2的轴向通孔21和22的动压轴承形成为 与轴1的较小直径部分1B相邻并且与较大直径部分1A的端面1A-1相对。 因此，轴向通孔21和22不会减小用于形成凸缘2的支承表面的区域，从而通过轴向通孔21和22可以消除润滑剂流体的不平衡的存在，而不会降低推力支撑能力 。 能够减小凸缘的直径，能够获得稳定的支撑能力，能够实现紧凑的尺寸和低的转矩。

公开(公告)号：US06206572B1

公开(公告)日：2001-03-27

申请号：US09243791

申请日：1999-02-03

申请人： Yasuhiro Kobayashi ,  Takeshi Takahashi ,  Yasuo Takamura ,  Shinji Matsue

发明人： Yasuhiro Kobayashi ,  Takeshi Takahashi ,  Yasuo Takamura ,  Shinji Matsue

IPC分类号： F16C3312

CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/105 ,  F16C17/22 ,  F16C33/12 ,  Y10S384/905

摘要： It is an object of the invention to provide a bearing device in which the bearing performance is not lowered even when the temperature is changed. In order to attain the object, the bearing device has a shaft and a sleeve. The shaft is made of stainless alloyed steel and has dynamic pressure generating grooves of a herringbone-like shape. The sleeve consists of the body made of a copper alloy, and an electroless nickel plated layer which covers the whole surface of the body. The electroless nickel plated layer has a coefficient of thermal expansion which is smaller than that of the body made of a copper alloy. The coefficient of thermal expansion of the shaft made of stainless alloyed steel is smaller than that of the body of the sleeve made of a copper alloy. When the temperature is raised, the electroless nickel plated layer suppresses the amount of thermal expansion of the body.

摘要翻译： 本发明的目的是提供一种轴承装置，即使在温度改变时也不降低轴承性能。为了达到该目的，轴承装置具有轴和套筒。 轴由不锈钢合金钢制成，并具有人字形形状的动态压力产生槽。 套筒由铜合金制成的主体和覆盖身体整个表面的化学镀镍层组成。 化学镀镍层的热膨胀系数小于铜合金体的热膨胀系数。 由不锈钢合金钢制成的轴的热膨胀系数小于由铜合金制成的套筒的热膨胀系数。 当温度升高时，化学镀镍层抑制体的热膨胀量。

公开(公告)号：US06299674B1

公开(公告)日：2001-10-09

申请号：US09440034

申请日：1999-11-12

申请人： Yasuo Takamura ,  Masaharu Shimizu ,  Takashi Fukuchi ,  Fujio Ishizawa ,  Akira Miyagi ,  Nobuyasu Ochiai ,  Atsushi Ikeda ,  Kiyoshi Okamura

发明人： Yasuo Takamura ,  Masaharu Shimizu ,  Takashi Fukuchi ,  Fujio Ishizawa ,  Akira Miyagi ,  Nobuyasu Ochiai ,  Atsushi Ikeda ,  Kiyoshi Okamura

IPC分类号： C09D1100

CPC分类号： A61B5/1172 ,  Y10T137/5689 ,  Y10T137/86501

摘要： A fingerprint detecting agent and a fingerprint detecting method using the agent, which can be used to detect latent fingerprints being in a wet condition, the fingerprint detecting agent includes a fixer containing silicone series compound, fluoride series compound, hydrocarbon series compound, animal or vegetable oil, higher fatty acid, or higher alcohol, and an arbitrary mixture thereof; a diluent containing polar soluent; a developer containing achromatic colored powder or chromatic colored powder. Latent fingerprints can be easily detected by spraying the fingerprint detecting agent; particularly, even if the latent fingerprints to be detected are in a wet condition, it is possible to detect them speedily and certainly.

摘要翻译： 指纹检测剂和使用该试剂的指纹检测方法，其可用于检测处于潮湿状态的潜在指纹，指纹检测剂包括含有硅酮系化合物，氟化物系列化合物，烃系化合物，动物或蔬菜的定影剂 油，高级脂肪酸或高级醇及其任意混合物; 含极性溶剂的稀释剂; 含有无色粉末或彩色有色粉末的显影剂。 通过喷涂指纹检测剂可以方便地检测潜在的指纹; 特别是，即使要检测到的潜在指纹处于潮湿状态，也能够迅速且可靠地进行检测。