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1. 发明专利

JPH1026143A DEVICE FOR SEALING UP ROLLING BEARING 失效
公开(公告)号：JPH1026143A
公开(公告)日：1998-01-27
申请号：JP19529896
申请日：1996-07-05
申请人： KOYO SEIKO CO , TOYO SEAL KOGYO KK
发明人： OKUMURA TAKASHI , NAKAGAWA YOSHITAKA , WAKABAYASHI JITSUGEN
IPC分类号： F16C33/78
摘要： PROBLEM TO BE SOLVED: To provide a rolling bearing sealing-up device capable of ensuring the sealing-up property for a long period even if a lip is worn by excessive tightening allowance. SOLUTION: A rolling bearing sealing-up device is provided on the shoulder part of the inner ring 1 with a peripheral stage part 6. A portion of an inner peripheral seal lip 12 extending radically along the side 7 of the peripheral stage part 6 from the inner peripheral part of an annular seal body 11 fixed to an outer ring 2 is adapted to contact the side 7 of the peripheral stage part 6. Then, the inner peripheral seal lip 12 of the annular seal body 11 is formed of a plurality of inside lips 13, 14 extending in the direction of the side 7 of the peripheral stage part 6 and a plurality of outside lips 15, 16 extending in the opposite direction to the side 7 of the peripheral stage part 6 from base parts of the respective inside lips 13, 14, while respective connecting parts 17, 18 between the inner peripheral part 11a of the annular seal body 11 and the inner peripheral lip 13 and between the respective inside lips 13, 14 are formed to extend axially and obliquely outward, and only the inside tip lip 13 of the respective inside lips always contacts the side 7 of the peripheral stage part 6, while the other inside lip 14 is formed to contact the side 7 of the peripheral stage part 6 first after the inside to lip 13 is worn by a predetermined amount.

2. 发明专利

JPH07332380A FIXING STRUCTURE FOR ROLLING BEARING 失效
公开(公告)号：JPH07332380A
公开(公告)日：1995-12-22
申请号：JP12871694
申请日：1994-06-10
申请人： KOYO SEIKO CO
发明人： OKUMURA TAKASHI , TAZUMI HAJIME
IPC分类号： F16C35/067
摘要： PURPOSE:To provide a fixing structure which permits the easy assembly and can apply a specific pilot pressure independently of the assembly precision, on a roller bearing and is free from the occurrence of the deflection in the attitude of an outer race. CONSTITUTION:A wave-shaped washer 6 having a slit at a place on the circumference is interposed between the end surface in the axial direction of an outer race 4 and the inner end surface 2a of a housing 2, and on the end surface of the outer race 4 and the inner end surface 2a of the housing, the engagement recessed parts 7 and 8 for the engagement of the split end parts 6u and 6d of a washer 6 which are curved to the side of each end surface are formed, and the slip in one direction of the revolution of the outer race 4 is prevented by the engagement in the revolution direction of both the split end parts 6u and 6d with the engagement recessed parts 7 and 8 on the outer race 4 side and on the housing 2 side.

3. 发明专利

JPH01175502A BEARING UNIT FOR WHEEL OF AUTOMOBILE 失效
公开(公告)号：JPH01175502A
公开(公告)日：1989-07-12
申请号：JP33375287
申请日：1987-12-28
申请人： KOYO SEIKO CO
发明人： OKUMURA TAKASHI
IPC分类号： G01P3/488 , B60B27/00 , B60B35/18 , G01P3/44
摘要： PURPOSE:To detect rotation with high accuracy by installing an inner ring to an outer ring with a nut via rolling members, providing an encoder portion on the nut side of the inner ring, covering the nut with a cover, and providing a rotation detector in a position opposite to the encoder portion in the cover. CONSTITUTION:Rolling bodies 7, 8 are installed between inner and outer rings 1, 2 through cages 9 and the fitting portion 4a of the inner ring member 4 of the inner ring 2 is fitted to an axle 3 and fixed with a nut 6. An annular pulser 10 is installed on the fitting portion 4a of the inner ring member 4. A cover case 11 is installed so as to cover the pulser 10 and the nut 6 and a rotation detector 12 is provided opposite to the pulser 10 between the inner periphery of the cover case 11 and the outer periphery of the nut 6. Due to this structure, the entrance of earth or muddy water can be prevented obtaining a wheel bearing unit which can detect the number of revolutions with high accuracy.

4. 发明专利

JP2004036782A Rolling bearing device 有权
标题翻译：滚动轴承装置
公开(公告)号：JP2004036782A
公开(公告)日：2004-02-05
申请号：JP2002195736
申请日：2002-07-04
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： IWATA TAKASHI , OKUMURA TAKASHI
IPC分类号： F16C19/54 , F16C19/18 , F16C33/58
CPC分类号： F16C19/18 , F16C33/588 , F16C33/60 , F16C2240/80 , F16C2300/02
摘要： PROBLEM TO BE SOLVED: To suppress a torque, prevent a bearing life from being shortened and balls from riding on the shoulder of a raceway, and increase a moment rigidity in a rolling bearing device supporting a cantilever rotating shaft on a fixed part. SOLUTION: This rolling bearing device comprises concentrically disposed inner and outer races 2 and 3 having a radial ball bearing 1a and a slant-contacted ball bearing 1b and a ball row 6 for the radial ball bearing and a ball row 7 for the slant-contacted ball bearing rollably installed between these inner and outer races 2 and 3 parallel with each other. A ball raceway for the radial ball bearing and a ball raceway for the slant-contacted ball bearing are formed integrally with each other in at least either of the inner and outer races 2 and 3. Only a moment load by a fitted rotating shaft is substantially applied to the slant-contacted ball bearing 1b. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了抑制转矩，防止轴承寿命缩短，滚珠不会滚动在滚道的肩部上，并且在固定部件上支撑悬臂旋转轴的滚动轴承装置中增加力矩刚度。解决方案：该滚动轴承装置包括同心配置的内圈和外圈2和3，其具有径向球轴承1a和倾斜接触球轴承1b以及用于径向球轴承的球排6和用于可滚动地安装在彼此平行的内外圈2和3之间的倾斜接触球轴承。用于径向球轴承的滚珠滚道和用于倾斜接触的滚珠轴承的滚珠滚道在内圈2和外圈3中的至少任一个上彼此一体地形成。仅通过配合的旋转轴的力矩载荷基本上应用于倾斜接触的滚珠轴承1b。版权所有（C）2004，JPO

5. 发明专利

JP2001304280A SEALING STRUCTURE OF ROLLING BEARING 失效
公开(公告)号：JP2001304280A
公开(公告)日：2001-10-31
申请号：JP2000116513
申请日：2000-04-18
申请人： KOYO SEIKO CO
发明人： OKUMURA TAKASHI , TAZUMI HAJIME , NAKAGAWA YOSHITAKA
IPC分类号： F16C33/80 , F16C33/78
摘要： PROBLEM TO BE SOLVED: To provide a sealing structure of a rolling bearing capable of improving water resistance of the bearing by improving a bearing mounting structure. SOLUTION: Ring dents are formed on both ends in the axial direction of an outer ring 7 of the rolling bearing 6, and sealing members 15, 16 are fitted and fixed in these ring dents. Seal lips 17, 18 of these sealing members 15, 16 make contact with ring dents formed on both ends in the axial direction of an inner ring 8 to slide. A covered part 18A of the seal lip 18 to cover the outside in the axial direction of a core bar 30 forms a narrow passage 31 facing against the axial direction aganst a bearing collar 11. The narrow passage 31 is set so that its clearance d1 comes to be in a range of 0.05-0.5 mm. Additionally, an area S1 where the covered part 18A and the bearing collar 11 face against each other is set to be 100 mm2 on the narrow passage 31.

6. 发明专利

JPH07301233A SLIDE BALL BEARING 失效
公开(公告)号：JPH07301233A
公开(公告)日：1995-11-14
申请号：JP9621394
申请日：1994-05-10
申请人： KOYO SEIKO CO
发明人： OKUMURA TAKASHI
IPC分类号： F16C31/04 , F16C29/04
摘要： PURPOSE:To easily assemble a cage into an outer ring, surely preventing the fall-off of the cage and improve reliability. CONSTITUTION:A slide ball bearing has a cylindrical outer ring 1, a cage 3 with plural pockets 2 being long in the axial direction and balls 4 fitted into the respective pockets 2. A stopper portion 1A annularly or partially bent to the inner diameter side and a claw-shape engagement portion 7 are formed at one end of the outer ring 1 in the axial direction and at least one end of the cage 3 in the axial direction, respectively. A portion 8 swollen to the inner diameter side is formed at the root of the engagement portion 7, an engagement depth k2 between the engagement portion 7 and the stopper portion 1A being set larger than a clearance k1 between the swollen portion 8 and a shaft 5.

7. 发明专利

JPH07279970A CAGE FOR BALL BEARING AND BALL BEARING 失效
公开(公告)号：JPH07279970A
公开(公告)日：1995-10-27
申请号：JP17709094
申请日：1994-07-28
申请人： KOYO SEIKO CO
发明人： TAZUMI HAJIME , KITAMURA MASAYUKI , UENO HIROSHI , OKUMURA TAKASHI , ASHIDA SHIGETAKA
IPC分类号： F16C19/06 , F16C33/38 , F16C33/41 , F16C33/42
摘要： PURPOSE:To prevent generation of abnormal sound, to decrease a required torque of a ball bearing and to prolong the use life of lubricant. CONSTITUTION:A ball bearing cage 4 incorporates a plurality of pockets 7 each having a concave spherical pocket surface 6 similar as a ball shape. Those of all pockets 7 which are spaced from one another are formed with protrusions 8 projected, inward of the pockets 7, from the outer race side edge parts of their pocket surfaces 6. With this arrangement, the resistance force against the slide contact, can be decreased.

8. 发明专利

JPH04133801A BEARING UNIT 失效
公开(公告)号：JPH04133801A
公开(公告)日：1992-05-07
申请号：JP25603490
申请日：1990-09-25
申请人： KOYO SEIKO CO
发明人： OKUMURA TAKASHI
IPC分类号： B60B35/18 , F16C19/28 , F16C19/38 , F16C41/00 , G01P3/488
摘要： PURPOSE:To prevent the position slippage of a pulser ring and correctly retain a gap between a sensor and the pulser ring in a fixed dimension by engagedly mounting the pulser ring on only one side parting inner ring member, and making the pulser ring untouchable to the other side parting inner ring member or spacer. CONSTITUTION:Each of small diameter step parts 11e and 11f, having the same diameter and mutually continued, is formed on each of inner end parts 11c and 11d of two parting inner ring members 11a and 11b respectively. Meantime a pulser ring 15, inserted in the small diameter parts 11e and 11f, is positioned on one side in an axis direction by abutting its one end surface 15a to the shoulder part 11h of the small diameter step part 11f of one side parting inner ring member 11b and pressing a small diameter innerly peripheral surface 15c, having the same width W3, in the outer periphery of the small diameter step part 11f, on the other hand, the other end surface 15b is separated by a gap t1 from the shoulder part 11g of the small diameter step part 11e of the other side parting inner ring member 11a. Also a gap t2 is formed between a large diameter innerly peripheral surface 15d continued to the small diameter innerly peripheral surface 15c and the outerly peripheral surface of the small diameter step part lie of the other side parting inner ring member 11a.

9. 发明专利

JP2005249037A Power transmission device 审中-公开
标题翻译：电力传输装置
公开(公告)号：JP2005249037A
公开(公告)日：2005-09-15
申请号：JP2004058956
申请日：2004-03-03
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： OKUMURA TAKASHI
IPC分类号： F16H55/36 , F16F15/12 , F16F15/123 , F16F15/124 , F16F15/127
摘要： PROBLEM TO BE SOLVED: To provide a power transmission device, attaining improvement of the generation of abnormal sound of a transmission belt and durability, and having excellent reliability over a long period of time in a pulley unit, for example.
SOLUTION: In this pulley unit 1, a pulley 2 which a belt 8 is wrapped round and a rotor shaft 3 are connected to each other through a power transmission medium member 4, the inner peripheral surface 23 of the pulley 2 and the outer peripheral surface 25 of the rotor shaft 3 are respectively provided with projecting parts 15, 17, 16, 18 formed on the surface 23 and the surface 25 alternately in the circumferential direction. Springs 19, 20 and dampers 21, 22 are stored to function in a pair in the circumferential direction in the storing spaces A1, A2, B1, B2 between the projecting parts 15, 17, 16, 18.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：例如，为了提供一种动力传递装置，能够实现传动带的异常声音的产生的改善和耐久性的提高，并且在滑轮单元中长时间地具有优异的可靠性。解决方案：在该滑轮单元1中，带8缠绕的皮带轮2和转子轴3通过动力传递介质构件4彼此连接，滑轮2的内周面23和转子轴3的外周面25分别在圆周方向上交替地设置有在表面23和表面25上形成的突出部分15,17,16,18。弹簧19,20和阻尼器21,22在突出部分15,17,16,18之间的存储空间A1，A2，B1，B2中沿圆周方向成对地起作用。版权所有：（C ）2005年，日本特许厅和NCIPI

10. 发明专利

JP2005214426A Sealing device for rolling bearing 有权
标题翻译：用于滚动轴承的密封装置
公开(公告)号：JP2005214426A
公开(公告)日：2005-08-11
申请号：JP2005125044
申请日：2005-04-22
申请人： Koyo Seiko Co Ltd , Toyo Seal Kogyo Kk , 光洋精工株式会社 , 東洋シール工業株式会社
发明人： OKUMURA TAKASHI , NAKAGAWA YOSHITAKA , WAKABAYASHI JITSUGEN
IPC分类号： F16C33/78 , F16C33/80
CPC分类号： F16C33/7853 , F16C19/06 , F16C33/805 , F16C2300/02
摘要： PROBLEM TO BE SOLVED: To provide a sealing device for a rolling bearing capable of ensuring sealing property for a long time even if wear of a lip occurs due to excessive tightening.
SOLUTION: This sealing device for the rolling bearing is provided with an inner peripheral seal lip extending in the radial direction along a side face of a peripheral step part provided in a shoulder part of an inner ring of the rolling bearing from an inner peripheal part of a seal annular body fixed to an outer ring of the rolling bearing to bring a part of the inner peripheral lip in contact with the side face of the peripheral step part. The inner peripheral seal lip 12 of the seal annular body 11 is formed by a plurality of inner lips 13, 14 extending in the direction of side face 7 of the peripheral step part 6 and a plurality of outer lips 15, 16 extending in the opposite direction to the side face of the peripheral step part from a basic part of each inner lip. An inner peripheral part of the seal annular body, a section between inner lips, and each connection part between inner lips are formed in such a way that they extend outward and obliquely in the axial direction. Only tip inner lip among the inner lips always comes into contact with the side face of the peripheral step part, and the other inner lip comes into contact with the side face of the peripheral step part for the first time after predetermined amount of wear of the tip inner lip.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种能够长时间确保密封性的滚动轴承的密封装置，即使由于过度的紧固而发生唇部的磨损。解决方案：该滚动轴承用密封装置具有内周密封唇缘，该内周密封唇沿着设置在滚动轴承的内圈的胎肩部的周边台阶部的侧面沿径向延伸，固定在滚动轴承的外圈上的密封环形体的周边部分，以使内周唇缘的一部分与周边台阶部分的侧面接触。密封环状体11的内周密封唇缘12由沿着周边台阶部6的侧面7的方向延伸的多个内侧唇缘13,14和在相对的周向延伸的多个外侧唇缘15,16形成。从每个内唇的基本部分到周边台阶部分的侧面的方向。密封环状体的内周部，内唇部与内唇部之间的各连接部分之间形成有使其向轴向倾斜延伸的方式形成。只有内唇之间的内唇部始终与周边台阶部的侧面接触，另一个内唇在预定量的磨损后首次与周边台阶部的侧面接触尖端内唇。版权所有（C）2005，JPO＆NCIPI

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