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1. 发明授权

US5289067A Bearing device 失效
标题翻译：轴承装置
公开(公告)号：US5289067A
公开(公告)日：1994-02-22
申请号：US11980
申请日：1993-02-01
申请人： Katsuhiko Tanaka , Ikunori Sakatani , Takeyuki Yoshiba , Shigeru Endo
发明人： Katsuhiko Tanaka , Ikunori Sakatani , Takeyuki Yoshiba , Shigeru Endo
IPC分类号： F16C33/10 , F16C39/06 , H02K5/16 , H02K7/09
CPC分类号： F16C32/044 , F16C17/026 , F16C17/107 , F16C32/0402 , F16C33/107 , H02K5/1677 , H02K7/09
摘要： A bearing device comprising a fixed shaft having a first radial bearing surface, a sleeve provided in a fitting relationship with the fixed shaft and having a second radial bearing surface opposed to the first radial bearing surface, the second radial bearing surface having herring-bone grooves thereon to form a radial gas bearing to support the sleeve with respect to the fixed shaft, and the fixed shaft having one end portion forming part of a magnetic thrust bearing of aspirating type to support the sleeve with respect to the fixed shaft.
摘要翻译：一种轴承装置，包括具有第一径向支承表面的固定轴，与所述固定轴配合关系的套筒，并具有与所述第一径向支承表面相对的第二径向支承表面，所述第二径向支承表面具有鲱鱼骨槽形成用于相对于固定轴支撑套筒的径向气体轴承，并且固定轴具有一个端部，该端部构成吸气型磁力推力轴承的一部分，以相对于固定轴支撑套筒。

2. 发明授权

US4934836A Dynamic pressure type fluid bearing device 失效
标题翻译：动压式流体轴承装置
公开(公告)号：US4934836A
公开(公告)日：1990-06-19
申请号：US393700
申请日：1989-08-14
申请人： Katsuhiko Tanaka , Ikunori Sakatani , Takeyuki Yoshiba , Takanobu Sato , Kiyoshi Haginuma , Toshimi Takajou , Hiromi Sugi
发明人： Katsuhiko Tanaka , Ikunori Sakatani , Takeyuki Yoshiba , Takanobu Sato , Kiyoshi Haginuma , Toshimi Takajou , Hiromi Sugi
IPC分类号： F16C17/10 , F16C33/10
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107
摘要： A housing has a vertically extending cylindrical bore, with a radical bearing surface formed on the inner peripheral surface, and a thrust bearing surface formed on the inner bottom surface of the cylindrical bore. A shaft member which is supported rotatably in the cylindrical bore of the housing has a radial receiving surface and a thrust receiving surface respectively formed on the outer peripheral surface and the bottom surface. A dynamic pressure generating groove of a spiral shape is formed in at least one of the radial bearing surface and ther radial receiving surface. When the shaft member is rotated, a gas in the housing is sucked by the pumping action of the dynamic pressure generating groove and flows into a pressure chamber between the thrust bearing surface and the thrust receiving surface through a radial space between the radial bearing surface and the radial receiving surface. The pressure in the pressure chamber maintains the shaft member in a floating position by a predetermined amount. The shaft member has a passage bore formed along a center axis line. The passage bore includes a restricted aperture of a smaller diameter which opens at the thrust receiving surface of the shaft member to thereby allow the gas in the pressure chamber to be exhausted into the housing through the passage bore.
摘要翻译：壳体具有竖直延伸的圆柱形孔，内圆周表面上形成有自由基轴承表面，以及形成在圆柱孔内底表面上的止推轴承表面。可旋转地支撑在壳体的圆筒孔中的轴构件具有分别形成在外周表面和底表面上的径向接收表面和止推接收表面。在径向轴承表面和径向接收表面中的至少一个中形成螺旋形状的动态压力产生槽。当轴构件旋转时，壳体中的气体通过动压产生槽的泵送作用被吸入，并通过径向支承表面和径向轴承表面之间的径向空间流入推力轴承表面和推力承受表面之间的压力室中径向接收面。压力室中的压力将轴构件保持在浮动位置预定量。轴构件具有沿着中心轴线形成的通道孔。通道孔包括较小直径的限制孔径，其在轴构件的推力接收表面处开口，从而允许压力室中的气体通过通道孔排出到壳体中。

3. 发明授权

US5046863A Dynamic pressure bearing device 失效
标题翻译：动压轴承装置
公开(公告)号：US5046863A
公开(公告)日：1991-09-10
申请号：US610000
申请日：1990-11-07
申请人： Ikunori Sakatani , Takeyuki Yoshiba , Katushiko Tanaka
发明人： Ikunori Sakatani , Takeyuki Yoshiba , Katushiko Tanaka
IPC分类号： F16C17/02 , F16C17/04 , F16C17/08 , F16C17/10 , F16C33/10 , G11B5/53
CPC分类号： G11B5/53 , F16C17/02 , F16C17/026 , F16C17/10 , F16C33/102 , F16C33/107
摘要： A dynamic pressure bearing device induced a housing having a sleeve and a thrust receiver and a shaft fit into the sleeve. Herringbone-shaped grooves for generating dynamic pressure comprising outer groove segments and inner group segments are disposed to at least one of the inner cylindrical surface of the sleeve and the outer cylindrical surface of the shaft at two axially spaced apart positions. The axial length of the outer groove segment is longer than that of the inner groove segment, and the difference of the axial length for the outer and the inner groove segments is greater in the lower herringbone-shaped grooves than in the upper herringbone-shaped grooves.
摘要翻译：动态压力承载装置引起具有套筒和推力接收器的壳体和装配到套筒中的轴。用于产生包含外槽段和内组段的动压的人字形槽设置在套筒的内圆柱形表面和轴的外圆柱形表面中的至少一个在两个轴向间隔开的位置。外槽段的轴向长度大于内槽段的轴向长度，并且外槽和内槽段的轴向长度差在下人字形槽中大于上人字形槽。

4. 发明授权

US5114245A Dynamic pressure bearing device 失效
标题翻译：动压轴承装置
公开(公告)号：US5114245A
公开(公告)日：1992-05-19
申请号：US551549
申请日：1990-07-11
申请人： Katsuhiko Tanaka , Takeyuki Yoshiba , Takanobu Sato , Ikunori Kawakami , Koichi Kawakami
发明人： Katsuhiko Tanaka , Takeyuki Yoshiba , Takanobu Sato , Ikunori Kawakami , Koichi Kawakami
IPC分类号： F16C33/10
CPC分类号： F16C33/107 , F16C17/026
摘要： A dynamic pressure bearing device includes a sleeve and a shaft member which is rotatably fitted into the sleeve. The sleeve is made of an aluminum alloy containing a carbon fiber and has a radial bearing surface formed in an inner peripheral surface and a thrust bearing surface formed in a lower end surface. The shaft member includes a base portion having a thrust receiving surface formed on an upper surface, and a shaft portion extending upright from the base portion and having a radial receiving surface formed on an outer peripheral surface. A first dynamic pressure generating groove is formed in at least one of the radial bearing surface and the radial receiving surface, and a second dynamic pressure generating groove is formed in at least one of the thrust bearing surface and the thrust receiving surface. The shaft member including the shaft portion and the base portion is molded from a synthetic resin as a unitary body. The thrust bearing surface is tapered so that a thrust bearing gap formed between the thrust bearing surface and the thrust receiving surface increases gradually, radially and outwardly.
摘要翻译：动压轴承装置包括套筒和可旋转地装配到套筒中的轴构件。套筒由含有碳纤维的铝合金制成，并具有形成在内周面的径向支承面和形成于下端面的止推轴承面。轴构件包括：基部，其具有形成在上表面上的推力接收表面;以及轴部，其从基部垂直延伸并且具有形成在外周面上的径向接收表面。第一动压产生槽形成在径向支承面和径向接收面中的至少一方，第二动压产生槽形成在止推轴承面和推力承受面的至少一方。包括轴部和基部的轴构件由作为整体的合成树脂模制而成。止推轴承表面是锥形的，使得形成在止推轴承表面和推力接收表面之间的推力轴承间隙逐渐地径向和向外增加。

5. 发明授权

US06910948B2 Needle bearing and method for grinding bearing parts thereof 有权
标题翻译：针轴承及其轴承部件研磨方法
公开(公告)号：US06910948B2
公开(公告)日：2005-06-28
申请号：US10232570
申请日：2002-09-03
申请人： Takeyuki Yoshiba , Makoto Fujinami
发明人： Takeyuki Yoshiba , Makoto Fujinami
IPC分类号： F16C19/30 , F16C19/46 , F16C33/64 , B24B1/00
CPC分类号： F16C19/30 , F16C19/46 , F16C33/547 , F16C33/64
摘要： It is an object of the invention to provide a needle bearing which can prevent occurrence of flake and seizure in the bearing parts even under such severe lubricating condition as provided by a compressor for a car air conditioner or a planetary unit for an automatic transmission. The needle bearing is structured by barrel grinding the raceway surface of a ring and the surface of a rolling body without using a ceramic-related abrasive such as alumina or silicon carbide.
摘要翻译：本发明的目的是提供一种滚针轴承，即使在用于汽车空调的压缩机或用于自动变速器的行星单元所提供的严酷的润滑条件下，也能够防止轴承部件中的片状和卡滞。滚针轴承是通过在不使用诸如氧化铝或碳化硅的陶瓷相关磨料的情况下通过桶磨削环的滚道表面和滚动体的表面来构造的。

6. 发明申请

US20050238275A1 Needle bearing, shaft, compressor for car air-conditioner, and planetary gear mechanism for automatic transmission 审中-公开
标题翻译：汽车空调用轴承，轴，压缩机，以及用于自动变速器的行星齿轮机构
公开(公告)号：US20050238275A1
公开(公告)日：2005-10-27
申请号：US11136082
申请日：2005-05-24
申请人： Takeyuki Yoshiba , Makoto Fujinami
发明人： Takeyuki Yoshiba , Makoto Fujinami
IPC分类号： F04B39/00 , F04B27/08 , F04B27/10 , F16C19/44 , F16C19/46 , F16C33/34 , F16C33/44 , F16C33/48 , F16C33/54 , F16C33/56 , F16C33/62 , F16C33/64 , F16H41/24 , F16H57/021 , F16H57/08 , F16C33/00
CPC分类号： F16C33/62 , F04B27/1063 , F16C19/30 , F16C19/463 , F16C33/34 , F16C33/546 , F16C2361/61 , F16H41/24 , F16H57/027
摘要： In thrust needle bearings 16A and 16B, radial needle bearings 15A and 15B, and a shaft 14, each part is treated to have a nitrogen concentration of 0.3 weight % or more, and a Vickers hardness of Hv=653 to 832. Therefore, abrasion of the contacting portions is minimal, and it is possible to suppress premature abrasion, and extend the life, even if used under severe lubrication conditions.
摘要翻译：在推力滚针轴承16A和16B，径向滚针轴承15A和15B以及轴14中，每个部件被处理为具有0.3重量％以上的氮浓度，维氏硬度Hv = 653〜832 因此，接触部的磨损最小，即使在严酷的润滑条件下使用也能够抑制过早的磨损，延长使用寿命。

7. 发明申请

US20050185876A1 Needle bearing and method for grinding bearing parts thereof 审中-公开
公开(公告)号：US20050185876A1
公开(公告)日：2005-08-25
申请号：US11115208
申请日：2005-04-27
申请人： Takeyuki Yoshiba , Makoto Fujinami
发明人： Takeyuki Yoshiba , Makoto Fujinami
IPC分类号： F16C19/30 , F16C19/46 , F16C33/64 , F16C33/32 , F16C33/62
CPC分类号： F16C19/30 , F16C19/46 , F16C33/547 , F16C33/64
摘要： It is an object of the invention to provide a needle bearing which can prevent occurrence of flake and seizure in the bearing parts even under such severe lubricating condition as provided by a compressor for a car air conditioner or a planetary unit for an automatic transmission. The needle bearing is structured by barrel grinding the raceway surface of a ring and the surface of a rolling body without using a ceramic-related abrasive such as alumina or silicon carbide.

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