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1. 发明授权

US07037386B2 Rolling bearing for continuously variable transmission 失效
公开(公告)号：US07037386B2
公开(公告)日：2006-05-02
申请号：US10410342
申请日：2003-04-10
申请人： Susumu Tanaka , Nobuaki Mitamura , Hiromichi Takemura , Yoshitaka Hayashi , Yasuo Murakami
发明人： Susumu Tanaka , Nobuaki Mitamura , Hiromichi Takemura , Yoshitaka Hayashi , Yasuo Murakami
IPC分类号： C22C38/24 , C22C38/46
CPC分类号： F16C33/62 , C21D9/36 , C21D9/40 , C22C38/02 , C22C38/04 , C22C38/18 , F16C33/30 , F16C33/6688 , F16C2361/63 , F16C2361/65 , Y10S148/906 , Y10S384/912
摘要： A rolling bearing for belt-type continuously variable transmission with a metal belt including pieces has an inner ring; an outer ring; and rolling elements, wherein at least one of the inner ring, the outer ring and the rolling element is made of an iron alloy having a chromium content of from 2.5 to 20.0% by weight.

2. 发明申请

US20050092396A1 Rolling bearing for a belt-type continuously variable transmission 有权
标题翻译：用于带式无级变速器的滚动轴承
公开(公告)号：US20050092396A1
公开(公告)日：2005-05-05
申请号：US10947393
申请日：2004-09-17
申请人： Hiromichi Takemura , Yoshitaka Hayashi
发明人： Hiromichi Takemura , Yoshitaka Hayashi
IPC分类号： C21D1/78 , C21D9/40 , C22C38/04 , C22C38/18 , C23C8/32 , C23C8/80 , F16C33/62 , F16C33/64 , F16H9/18 , F16H61/662
CPC分类号： C21D9/40 , C21D1/78 , C21D2211/001 , C21D2261/00 , C22C38/04 , C22C38/18 , C22C38/22 , C22C38/24 , C23C8/32 , C23C8/80 , F16C19/06 , F16C33/62 , F16C33/64 , F16C2204/62 , F16C2204/64 , F16C2240/18 , F16C2240/64 , F16C2361/63 , F16H9/18 , F16H61/662
摘要： A bearing is provided to have sufficient durability even when CVT fluid having a low viscocity is used, with its flow rate kept small, so that the efficiency of the belt-type continuously variable transmission is improved. The material of the races including the outer race 4 is made of a iron-base alloy containing, by weight, C of from 0.15% to 0.5%, Si of 0.1% to 1.5%, Mn of 0.1% to 1.5%, and Cr of 0.5% to 3.0%. This material is subjected to carbonitriding, quenching, tempering and quenching finish. The surface portion of the outer raceway 6 on the inner peripheral surface of the outer race 4 is formed with a surface layer containing C of from 0.8 weight % to 1.2 weight % and N of from 0.05 weight % to 0.50 weight %.
摘要翻译：即使使用具有低粘度的CVT流体，其流量保持较小，也提供了具有足够的耐久性的轴承，从而提高了带式无级变速器的效率。包括外圈4的种族材料由铁基合金制成，该铁基合金含有重量百分比为0.15％至0.5％的Si，0.1％至1.5％的Si，0.1％至1.5％的Mn和0.1％至1.5％的Mn，为0.5％〜3.0％。该材料经过碳氮共渗，淬火，回火和淬火处理。外圈4的内周面上的外滚道6的表面部分形成有C为0.8重量％至1.2重量％，N为0.05重量％至0.50重量％的表面层。

3. 发明授权

US07189171B2 Rolling bearing for belt driven continuously variable transmission 有权
标题翻译：滚动轴承用于带式无级变速传动
公开(公告)号：US07189171B2
公开(公告)日：2007-03-13
申请号：US10947393
申请日：2004-09-17
申请人： Hiromichi Takemura , Yoshitaka Hayashi
发明人： Hiromichi Takemura , Yoshitaka Hayashi
IPC分类号： F16H55/56
CPC分类号： C21D9/40 , C21D1/78 , C21D2211/001 , C21D2261/00 , C22C38/04 , C22C38/18 , C22C38/22 , C22C38/24 , C23C8/32 , C23C8/80 , F16C19/06 , F16C33/62 , F16C33/64 , F16C2204/62 , F16C2204/64 , F16C2240/18 , F16C2240/64 , F16C2361/63 , F16H9/18 , F16H61/662
摘要： A bearing is provided to have sufficient durability even when CVT fluid having a low viscocity is used, with its flow rate kept small, so that the efficiency of the belt-type continuously variable transmission is improved.The material of the races including the outer race 4 is made of a iron-base alloy containing, by weight, C of from 0.15% to 0.5%, Si of 0.1% to 1.5%, Mn of 0.1% to 1.5%, and Cr of 0.5% to 3.0%. This material is subjected to carbonitriding, quenching, tempering and quenching finish. The surface portion of the outer raceway 6 on the inner peripheral surface of the outer race 4 is formed with a surface layer containing C of from 0.8 weight % to 1.2 weight % and N of from 0.05 weight % to 0.50 weight %.
摘要翻译：即使使用具有低粘度的CVT流体，其流量保持较小，也提供了具有足够的耐久性的轴承，从而提高了带式无级变速器的效率。包括外圈4的种族材料由铁基合金制成，该铁基合金含有重量百分比为0.15％至0.5％的Si，0.1％至1.5％的Si，0.1％至1.5％的Mn和0.1％至1.5％的Mn，为0.5％〜3.0％。该材料经过碳氮共渗，淬火，回火和淬火处理。外圈4的内周面上的外滚道6的表面部分形成有C为0.8重量％至1.2重量％，N为0.05重量％至0.50重量％的表面层。

4. 发明授权

US6152605A Ball bearing 失效
标题翻译：滚珠轴承
公开(公告)号：US6152605A
公开(公告)日：2000-11-28
申请号：US379748
申请日：1999-08-24
申请人： Hiromichi Takemura , Kazuo Sekino , Nobuaki Mitamura , Yasuo Murakami , Hiroshi Suzuki , Yoshitaka Hayashi
发明人： Hiromichi Takemura , Kazuo Sekino , Nobuaki Mitamura , Yasuo Murakami , Hiroshi Suzuki , Yoshitaka Hayashi
IPC分类号： F16C33/58 , F16C33/66
CPC分类号： F16C33/6685 , F16C33/585 , F16C33/6659 , F16C19/06
摘要： A ball bearing in which races are well prevented from flaking in early stages under an environment using lubricating oil having a high traction coefficient so that a long life of the ball bearing is attained, while the cost of the bearing is reduced. The ball bearing has a plurality of balls disposed between a fixed race and a rotating race, and the ball bearing is used under an environment using lubricating oil having a traction coefficient of 0.07 or more under the conditions that a slip factor is 5% and a temperature is 40.degree. C. At least the groove radius of the rotating race is set to be in a range of from 0.53 Dw to 0.58 Dw both inclusive when Dw designates the diameter of balls. In addition, the hardness of the race is set to be in a range of from HRC 58 to HRC 64 both inclusive.
摘要翻译：一种滚珠轴承，其中在使用具有高牵引系数的润滑油的环境下，在早期阶段很好地防止了种族脱落，从而在轴承的成本降低的同时实现了滚珠轴承的使用寿命长。滚珠轴承具有设置在固定座圈和旋转座圈之间的多个球，并且在滑动系数为5％的条件下，在具有0.07以上的牵引系数的润滑油的环境下使用滚珠轴承，温度为40℃。当Dw表示球的直径时，至少将旋转座圈的槽半径设定在0.53Dw〜0.58Dw的范围内。另外，将该种族的硬度设定在HRC58〜HRC64的范围内。

5. 发明授权

US07249892B2 Rolling bearing 有权
标题翻译：滚动轴承
公开(公告)号：US07249892B2
公开(公告)日：2007-07-31
申请号：US10520184
申请日：2003-07-18
申请人： Hiromichi Takemura , Yoshiaki Sakajiri
发明人： Hiromichi Takemura , Yoshiaki Sakajiri
IPC分类号： F16C19/06
CPC分类号： F16H57/0489 , F16C19/06 , F16C33/58 , F16C2240/40 , F16C2240/60 , F16C2240/70 , F16C2240/76 , F16C2361/63 , F16H9/16 , F16H9/18
摘要： When a minimum thickness of a part where an outer ring raceway is provided on a middle portion in the axial direction of an outer ring is h, and a diameter of each rolling element is Da, the relationship 0.4 Da≦h 0.8 Da is satisfied. As a result, even when the outer ring 4a is fixed in a transmission case of low-rigidity, elastic deformation of the outer ring can be prevented without needlessly increasing the thickness h of the outer ring.When an outer diameter of an outer ring is D, a width of this outer ring in the axial direction is W, a minimum thickness of a part where the outer ring raceway is provided on a middle portion in the axial direction of the outer ring is h, and a diameter of each ball is Da, the respective dimensions are controlled such that a value K calculated by {(h1.5·W)/(Da1.1·.D0.5)} satisfies the relationship 1.20≦K≦2.00. As a result, sufficient rigidity of the outer ring can be maintained, and early exfoliation based on elastic deformation of the outer ring can be prevented without needlessly increasing the size of the outer ring.
摘要翻译：当在外圈的轴向的中间部分设置外圈滚道的部分的最小厚度为h，并且每个滚动元件的直径为Da时，满足关系0.4 Da <= h 0.8 Da 。结果，即使当外圈4a固定在低刚性的变速箱中时，也可以防止外圈的弹性变形而不用增加外圈的厚度h。当外圈的外径为D时，该外圈的轴向宽度为W，在外圈的轴向的中间部设置有外圈滚道的部分的最小厚度为 h，并且每个球的直径为Da，各个尺寸被控制为使得通过{（h <1.5 W）/（Da> 1.1）计算的值K D <0.5>}}满足关系1.20 <= K <= 2.00。结果，可以保持足够的外圈的刚性，并且可以防止基于外圈的弹性变形的早期剥离，而不用增加外圈的尺寸。

6. 发明授权

US06565677B1 Rolling bearing 有权
标题翻译：滚动轴承
公开(公告)号：US06565677B1
公开(公告)日：2003-05-20
申请号：US09575444
申请日：2000-05-22
申请人： Hiromichi Takemura , Yasuo Murakami
发明人： Hiromichi Takemura , Yasuo Murakami
IPC分类号： C22C3822
CPC分类号： F16C33/62 , Y10S148/906 , Y10S384/912
摘要： A rolling bearing includes races and rolling elements, at least the race including: 0.60 wt % to 0.95 wt % of C; 10.0 wt % to 13.0 wt % of Cr; and at least one kind of 0.5 wt % to 2.0 wt % of Mo and 0.5 wt % to 2.0 wt % of V with the balance of Fe. The surface hardness of a raceway surface of the race is not less than HRC 58, and the raceway surface of the race has a passive film with the thickness of 5 to 100 nm.
摘要翻译：滚动轴承包括种族和滚动元件，至少该种族包括：0.60wt％至0.95wt％的C; 10.0重量％〜13.0重量％的Cr; 和0.5重量％〜2.0重量％的Mo和0.5重量％〜2.0重量％的V中的至少一种，余量为Fe。赛道的轨道面的表面硬度不小于HRC58，并且赛道的轨道表面具有厚度为5至100nm的钝化膜。

7. 发明授权

US06342109B1 Rolling bearing 有权
标题翻译：滚动轴承
公开(公告)号：US06342109B1
公开(公告)日：2002-01-29
申请号：US09420836
申请日：1999-10-19
申请人： Hiromichi Takemura , Kazuo Sekino , Shigeru Okita , Yasuo Murakami
发明人： Hiromichi Takemura , Kazuo Sekino , Shigeru Okita , Yasuo Murakami
IPC分类号： C23C822
CPC分类号： F16C33/62 , F16C2240/54 , Y10S384/913
摘要： As a steel material for an inner race, an outer race and a rolling element constituting a rolling bearing, there is used one containing carbon (C) and chromium (Cr) in an amount of 0.65 wt % to 1.10 wt % and 2.0 wt % to 6.0 wt %, respectively. At least one of the inner race, the outer race and the rolling element is formed from the steel material. The inner race, outer race and the rolling element thus formed is then subjected to hardening, tempering and polishing. Further, a chromium oxide layer (Cr2O3) having a thickness of 5 nm to 300 nm is formed on a race track surface of at least one of the inner race, the outer race and the rolling element. If the rolling bearing is used in operation under the lubrication at a high traction coefficient with water mixed therein, finely particulate molybdenum carbide and/or vanadium carbide having a particle diameter of 50 nm to 300 nm is distributed in the matrix.
摘要翻译：作为构成滚动轴承的内圈，外圈和滚动体的钢材，使用含有0.65重量％〜1.10重量％的碳（C）和铬（Cr），2.0重量％至6.0重量％。内圈，外圈和滚动体中的至少一个由钢材形成。然后将如此形成的内圈，外圈和滚动元件进行硬化，回火和抛光。此外，在内圈，外圈和滚动体中的至少一个的座圈表面上形成有厚度为5nm〜300nm的氧化铬层（Cr 2 O 3）。如果在与水混合的高牵引系数的润滑下使用滚动轴承，则在基体中分布有粒径为50nm〜300nm的微细的碳化钼和/或碳化钒。

8. 发明授权

US6036618A Continuously variable transmission of half-toroidal type 有权
标题翻译：半环型连续可变传动
公开(公告)号：US6036618A
公开(公告)日：2000-03-14
申请号：US190950
申请日：1998-11-12
申请人： Kouji Ishikawa , Hiromichi Takemura , Hiroyuki Itoh , Hiroshi Kato , Takashi Imanishi
发明人： Kouji Ishikawa , Hiromichi Takemura , Hiroyuki Itoh , Hiroshi Kato , Takashi Imanishi
IPC分类号： F16H15/38
CPC分类号： F16H15/38
摘要： A continuously variable transmission of the half-toroidal type, comprising an input shaft connected to a drive source, an input disc supported on the input shaft, an output disc supported on the input shaft and opposed to the input disc, and a power roller provided between the input and output discs for rocking motion and in rolling contact with the discs. In this transmission, the discs are shaped so that (R.multidot.d)/(D.multidot.t) is given by 0.5
摘要翻译：半环型无级变速器，包括连接到驱动源的输入轴，支撑在输入轴上的输入盘，支撑在输入轴上并与输入盘相对的输出盘，以及提供的动力辊在输入和输出盘之间进行摇摆运动并与盘滚动接触。在这种传输中，盘被成形为使得（Rxd）/（Dxt）由0.5 <（Rxd）/（Dxt）<1.5给出，其中R是每个牵引表面的曲率半径，D是曲率中心，d是每个盘的内径，t是每个盘的厚度。

9. 发明申请

US20130004111A1 Spacer for Radial Needle Roller Bearing 审中-公开
标题翻译：径向滚针轴承
公开(公告)号：US20130004111A1
公开(公告)日：2013-01-03
申请号：US13498065
申请日：2011-11-25
申请人： Masaki Sadamura , Hiromichi Takemura , Koichi Kitamura
发明人： Masaki Sadamura , Hiromichi Takemura , Koichi Kitamura
IPC分类号： F16C33/46
CPC分类号： F16C19/48 , F16C19/463 , F16C33/37 , F16C33/485 , F16C33/6651 , F16C2361/61 , F16H2057/085
摘要： Provided is a spacer for a radial needle roller bearing that keeps dynamic torque of a double-row radial needle roller bearing low, while suppressing wear in areas of rubbing with adjacent members by causing there to be a film of oil having a proper amount of oil to exist in the areas of rubbing without excessive surface area. Concave sections that are recessed in a direction away from the adjacent members of the column sections 13a or rim sections 12 are formed in the outside surfaces in the radial direction and/or circumferential direction of the column sections 13a, and/or in the outside surfaces in the radial and/or axial direction of the rim sections 12, and preferably radial concave sections 22 having bottom and that are recessed toward the inside in the radial direction are formed in the outside surfaces in the radial direction of the column sections 13a.
摘要翻译：提供一种用于径向滚针轴承的间隔件，其保持双列径向滚针轴承的动态扭矩低，同时通过使得存在具有适当油量的油膜而抑制邻近部件摩擦区域的磨损存在于没有过度表面积的摩擦区域。在柱部13a或边缘部12的相邻部件的方向上凹陷的凹部形成在柱部13a的径向和/或圆周方向的外表面和/或外表面在边缘部分12的径向和/或轴向方向上，并且优选地，在柱部分13a的径向方向上的外表面中形成具有底部并且在径向方向上朝内侧凹陷的径向凹部22。

10. 发明授权

US07488113B2 Roller bearing for belt-type stepless speed changer 有权
标题翻译：带式无级变速器滚子轴承
公开(公告)号：US07488113B2
公开(公告)日：2009-02-10
申请号：US10553070
申请日：2004-03-19
申请人： Hiromichi Takemura
发明人： Hiromichi Takemura
IPC分类号： F16C33/34 , F16C19/00
CPC分类号： F16C33/34 , F16C19/26 , F16C23/088 , F16C2240/50 , F16C2361/63 , F16H9/18
摘要： In a cylindrical roller bearing 20 for continuously variable belt and pulley transmissions which is used at rotational support portions of a continuously variable belt and pulley transmission and in which a plurality of cylindrical rollers 23 are rollably provided in a circumferential direction between an outer ring 21 and an inner ring 22, a raceway surface 23a of the cylindrical roller 23 is made to take the shape of a full crowning, and a radius curvature R of the full crowning is made to satisfy a relationship of 0.01≦L2/(Da×R)≦0.03 relative to a diameter Da and a roller length L of the cylindrical roller 23.
摘要翻译：在用于连续可变皮带和皮带轮传动装置的旋转支撑部分的无级变速皮带轮传动装置的圆柱滚子轴承20中，多个圆柱滚子23沿圆周方向在外圈21和使内圈22，圆筒滚子23的滚道面23a形成为全冠状，使全冠的半径曲率R满足0.01 <= L2 /（DaxR）< 圆柱滚子23的直径Da和滚子长度L为0.03。

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