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1. 发明专利

JP2002174229A REVOLUTION SEAT BEARING 失效
公开(公告)号：JP2002174229A
公开(公告)日：2002-06-21
申请号：JP2000372484
申请日：2000-12-07
申请人： KOYO SEIKO CO
发明人： MATSUSHITA TSUGIO
IPC分类号： F16C19/36 , F16C33/58
摘要： PROBLEM TO BE SOLVED: To provide a revolution seat bearing capable of easily performing a disassembling work of a bearing. SOLUTION: This revolution seat bearing in which a hole 13 for insertion of a rolling element 12 is formed on an outer ring 10 by being radially passed through, a plug body 14 is fitted and fixed into/to the hole 13 for insertion and the rolling element 12 is arranged between the same inner raceway ring 15 formed on the plug body 14 and an inner peripheral surface of the outer ring 10 and an outer peripheral raceway track 16 formed on an outer peripheral surface of an inner ring 11 is characterized by forming a bearing surface 18 on a peripheral surface of the hole 13 by making an outside diameter part of the hole 13 for insertion of the rolling element 12 on the outer ring 10 as a stepped part 17, forming a flange 19 joined to the bearing surface 18 on an outside diameter part of the plug body 14 and providing a detent device 20 and a falling prevention device 21 of the plug body 14 between the flange 19 and the bearing surface 18.

2. 发明专利

JP2000257641A SEAL DEVICE FOR ROLLING BEARING 失效
公开(公告)号：JP2000257641A
公开(公告)日：2000-09-19
申请号：JP6362499
申请日：1999-03-10
申请人： KOYO SEIKO CO
发明人： MATSUSHITA TSUGIO , MORITA YOSHIYUKI
IPC分类号： F16C33/78
摘要： PROBLEM TO BE SOLVED: To provide a seal device for a rolling bearing preventing coming-off of a seal member from a peripheral groove of an outer ring and eliminating a factor increasing torque and heating, even when the device is mounted in the rolling bearing of relatively large diameter in thin thickness. SOLUTION: In a peripheral groove 11 formed in an internal peripheral surface in the vicinity of an end face of an outer ring 1, an inner side lock ring 61 formed of a ring-shaped metal plate, seal member 62 formed of elastic material, and an outer side lock ring 63 formed of ring-shaped metal plate are fitted successively from an axial direction inner side, also the inner side lock ring 61 and the seal member 62 are integrally bonded to each other or integrally molded, so as to prevent coming-off of the seal member 62 from the peripheral groove 11 of the outer ring 1 by sliding contact with inner rings 2a, 2a of a seal lip 62a of the seal member 62.

3. 发明专利

JP2000104741A BALL BEARING DEVICE AND MANUFACTURE THEREOF 失效
公开(公告)号：JP2000104741A
公开(公告)日：2000-04-11
申请号：JP27555198
申请日：1998-09-29
申请人： KOYO SEIKO CO
发明人： MATSUSHITA TSUGIO , YAMAKAWA KAZUYOSHI , SEKIMOTO HIROSHI , ONO HIROSHI
IPC分类号： F16C43/06 , F16C19/06 , F16C33/58
摘要： PROBLEM TO BE SOLVED: To make a whole thickness thinner and to increase a load capacity by integrally forming an inner ring and a shaft to a circular plate shape or an annular shape, integrally forming an outer ring and a housing to an annular shape and interposing balls between respective tracks with approximately no gap. SOLUTION: A ball bearing device X has loaded balls and non-loaded balls 4 as a rolling body between an outer ring 1 and an inner ring 2 and between an outer ring track 1a and an inner ring track 2a and a housing H for retaining the outer ring 1 and a shaft S for linking the inner ring 2 are integrally formed respectively. The loaded balls 3 and the non-loaded balls 4 are alternately arranged with approximately no gap without using a retainer and a mutual space of the loaded balls 3 is restricted by the non-loaded balls 4. Thus, since the inner/outer track is formed in a single line, a thickness of a whole device can be outstandingly made thinner. A loading capacity of the bearing can be enhanced by interposing the balls with approximately no gap without using the retainer.

4. 发明专利

JPH07158642A ROLLING BEARING USED IN MAGNETIC FIELD ENVIRONMENT 失效
公开(公告)号：JPH07158642A
公开(公告)日：1995-06-20
申请号：JP30410993
申请日：1993-12-03
申请人： KOYO SEIKO CO
发明人： YAMAMOTO KENJI , MATSUSHITA TSUGIO
IPC分类号： F16C19/00 , C10M103/00 , C10N40/02 , C10N50/08 , F16C33/32 , F16C33/58 , F16C33/62
摘要： PURPOSE:To make rotation smooth in the case of being used under the magnetic field environment by forming inner and outer bearing rings of steel, and forming rolling elements between both bearing rings of ceramics. CONSTITUTION:When a first joint member 3 is rotated by drive mechanism, attracting force acts between the permanent magnets 8A, 8B of the magnet ring 7 of the first joint member 3 and the permanent magnets 19A, 19B of the magnet ring 18 of a second joint member 15, and the second joint member 15 is rotated by the same quantity in the same direction as the first joint member 3. Since both inner and outer rings 11, 12 and 22, 23 of ball bearings 9, 21 are formed of steel, and the balls 13, 24 of the ball bearings 9, 21 are formed of ceramics, the increase and fluctuation of torque under the influence of the magnetic field can be suppressed. Also, since the magnetic flux is concentrated on the groove 14 of the outer ring 12 and the groove 25 of the inner ring 22, abrasive powder generated from both inner and outer rings 11, 12 and 22, 23 made of steel is collected into the grooves 14, 25 by the attracting force. The abrasive powder is thereby prevented from biting into a raceway track so as to make rotation smooth.

5. 发明专利

JPH06330939A AUTOMATIC ALIGNING ROLLER BEARING DEVICE 失效
公开(公告)号：JPH06330939A
公开(公告)日：1994-11-29
申请号：JP11700493
申请日：1993-05-19
申请人： KOYO SEIKO CO
发明人： MATSUSHITA TSUGIO , KAWAKAMI YOSHIHISA
IPC分类号： F16C23/08 , F16C33/58
摘要： PURPOSE:To prevent abnormal wear or premature exfoliation by forming cogs at the periphery, and interposing rollers in the form of an hour-glass between an outer ring, at whose internal circumference a convex spherical surface track is formed, and an inner ring at whose periphery a convex spherical surface track is formed. CONSTITUTION:Cogs 12 are formed at the periphery of an outer ring 1, and a convex spherical surface track 11 is formed at the internal circumference. A convex spherical surface track 21 is formed at the periphery of the inner ring 2, and a shaft 4 is fitted in the bore. Between the spherical surface tracks 11, 21, rollers 3 in the form of hour-glass whose running surfaces are identical to the tracks 11, 21 are interposed at a certain spacing. The motion of each roller 3 in the axial direction is restrained by the outer ring 1, and when a relative inclination is produced between the outer ring 1 and inner ring 2, the roller 3 makes relative movement in pursuit to the outer ring 1, and the outer ring 1 rotating direction becomes identical to the running direction of the roller 3. This prevents generation of relative slippage between the two to lead to preclusion of abnormal wear or premature exfoliation of the track surface of the outer ring 1 and the running surface of the roller 3.

6. 发明专利

JPS54121348A SINGLEETRAIN AUTOMATIC SELFFALIGNING ROLLER BEARING 失效
公开(公告)号：JPS54121348A
公开(公告)日：1979-09-20
申请号：JP2966478
申请日：1978-03-14
申请人： KOYO SEIKO CO
发明人： WAKAMATSU YOSHIAKI , MATSUSHITA TSUGIO , KASHIWARA YOSHINOBU
IPC分类号： F16C19/36 , F16C23/08 , F16C33/58
摘要： PURPOSE:To raise the thrust load capacity, by machining meet face portions on the end faces of each roller and the inside surface of an inner race flange. CONSTITUTION:A meet face portion C1, which is shaped like a cone or other, is formed on the peripheral part 12 of the end face 11 of the spherical-surface roller 10. A meet face portion C3, which is conical, is formed on the conical inside surface 22 of the inner race flange 21. The meet face portion C3 is so machined that the portion C3 extends with an angular bend to the conical inside surface C2 of the inner race flange 21.

7. 发明专利

JP2003278744A Ball bearing for supporting horizontal rotor 审中-公开
标题翻译：球轴承用于支持水平转子
公开(公告)号：JP2003278744A
公开(公告)日：2003-10-02
申请号：JP2002080475
申请日：2002-03-22
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： FUJIWARA ARIHIRO , MATSUSHITA TSUGIO , OTSUKI MASAAKI
IPC分类号： F16C19/04 , F16C33/32 , F16C33/38
CPC分类号： F16C19/166
摘要： PROBLEM TO BE SOLVED: To provide a ball bearing for supporting a horizontal rotor such as a supporting bearing for a CT scanner restraining collisional sound of a ball 113 and a holder 116 while preventing ball clogging in a pocket and also preventing electrocorrosion.
SOLUTION: This ball bearing has a specified pocket clearance by the holder 116 between a pair of bearing rings 111, 112 and has balls 113 arranged with equal intervals in the circumference in it. A relational expression of BPCD≥700 [mm] and Bc/Bd≥0.05 is satisfied by specifying a diameter of each of the ball 113 as Bd, a pitch circular diameter of each of the ball 113 as BPCD and a pocket clearance as Bc, and each of the balls 113 is made of ceramics. In the meantime, the holder 116 is, for example, made of resin.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于支撑水平转子的球轴承，例如用于CT扫描器的支撑轴承，其限制球113和保持器116的碰撞声，同时防止球窝堵塞在口袋中并且还防止电腐蚀。
解决方案：该滚珠轴承具有通过保持器116在一对轴承环111,112之间具有指定的袋空隙，并且具有在其周围等间隔布置的滚珠113。通过将球113的每一个的直径指定为Bd，将球113的节圆直径作为BPCD，并将袋空隙设定为Bc来满足BPCD≥700[mm]和Bc /Bd≥0.05的关系式，并且每个球113由陶瓷制成。同时，保持器116例如由树脂制成。版权所有（C）2004，JPO

8. 发明专利

JP2002155950A CAGE OF PLASTIC FOR BALL BEARING 失效
公开(公告)号：JP2002155950A
公开(公告)日：2002-05-31
申请号：JP2000351037
申请日：2000-11-17
申请人： KOYO SEIKO CO
发明人： MATSUSHITA TSUGIO
IPC分类号： F16C33/41
摘要： PROBLEM TO BE SOLVED: To provide a segment type plastic cage for a ball beating in which effects of molding shrinkage are less given to extraordinarily eliminate falling. SOLUTION: This segment type plastic cage for a ball bearing comprises combination of plural cage segments parted along a circle, where plural pockets opened on one end side of an axial direction for holding balls are formed in each cage segment at a constant interval in a circumferential direction. Between the pockets 3 in each cage segment 2, cuts 10 are formed from an end surface 9 on the opposite side to a pocket opening 8 toward the pocket opening 8 to be cut in a range from a supposed line 6 connecting bottom parts of the pockets 3 to each other to a center line 5 of each pocket.

9. 发明专利

JP2002130259A SUPPORT BEARING FOR ROTARY BODY OF CT SCANNER 失效
公开(公告)号：JP2002130259A
公开(公告)日：2002-05-09
申请号：JP2000323532
申请日：2000-10-24
申请人： KOYO SEIKO CO
发明人： KAWAKAMI YOSHIHISA , MATSUSHITA TSUGIO
IPC分类号： F16C19/08 , F16C33/58
摘要： PROBLEM TO BE SOLVED: To improve rigidity of an inner ring of an assembled angular contact ball bearing as a support bearing for a rotating body of CT scanner. SOLUTION: In the support bearing for the rotary body of CT scanner comprising of a journal box 1, a rotating body 2 supported in the journal box 1 via the assembled angular contact ball bearings 3 and 4 and also arranging a rotationally driving portion 5 at an end portion, and an installing member 6 for a X-ray generating apparatus fixed on an other end face of the rotating body 2, both the inner rings or both the outer rings of the assembled angular contact ball bearings 3 and 4 are characterized to be integral members 18 and 21.

10. 发明专利

JP2000130442A HOLDER FOR BEARING 失效
公开(公告)号：JP2000130442A
公开(公告)日：2000-05-12
申请号：JP30792798
申请日：1998-10-29
申请人： KOYO SEIKO CO
发明人： MATSUSHITA TSUGIO , ASHIDA SHIGETAKA
IPC分类号： B29D99/00 , B29C53/00 , B29K77/00 , F16C19/16 , F16C33/38 , F16C33/44 , F16C33/56 , F16C33/66 , B29D31/00
摘要： PROBLEM TO BE SOLVED: To provide a structure which can be inexpensively manufactured, in a holder for a bearing. SOLUTION: For forming a shape in which a plurality of plate-shaped segments 10 constituting a holder 5 for a bearing are warped in arched shape, heat shrinkage after molding is utilized without transcription from a molding metal mold as in the past. In this way, necessity for using the molding metal mold of particular shape curved as in the past is eliminated, so that a molding metal mold of general flat shape can be utilized. Consequently, a molding cost can be markedly reduced.

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