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41. 发明专利

JPH029567A POLISHING DEVICE EMPLOYING MAGNETIC FLUID 失效
公开(公告)号：JPH029567A
公开(公告)日：1990-01-12
申请号：JP15822688
申请日：1988-06-28
申请人： KATO YASUSHI , JGC CORP
发明人： KATO YASUSHI , UMEHARA TOKUJI , ADACHI SHIGERU , SATO SHIN
IPC分类号： B24B11/02 , B24B37/025
摘要： PURPOSE:To reduce vibration of a guide ring during polishing and to improve roundness and the polishing efficiency of a ball body by a method wherein the inner wall surface of the guide ring is lined with friction resistant rubber. CONSTITUTION:A spherical substance 3 to be polished is polished in roundness in a way that a drive lap 1 is rotated in a state that the substance to be polished is held in magnetic fluid 7 by means of the drive lap 1, a float 5, on which buoyancy is exerted togetherwith the magnetic fluid 7 by means of a magnetic field generated by a magnetic field generating means 6, and the inner wall surface of a guide ring 4. In this case, in order that vibration of the guide ring 4 is suppressed during polishing of the substance 3 to be polished, the inner wall surface of the guide ring 4 is lined with a lining material, e.g. friction resistant polyurethane rubber. This constitution enables improvement of roundness of the substance 3 to be polished to an extremely high value and shortening of a polishing time.

42. 发明专利

JPH01135466A POLISHING DEVICE USING MAGNETIC FLUID 失效
公开(公告)号：JPH01135466A
公开(公告)日：1989-05-29
申请号：JP28743987
申请日：1987-11-16
申请人： JGC CORP , KATO YASUSHI
发明人： KATO YASUSHI , UMEHARA TOKUJI , ADACHI SHIGERU , SATO SHIN
IPC分类号： B24B31/112 , B24B37/00
摘要： PURPOSE:To improve the polishing efficiency by automatically keeping a constant working load during polishing by arranging a container filled with magnetic fluid under a driving jig and installing a mechanism for pressing the jig and the container by a constant load. CONSTITUTION:When the total weight B of a magnet 2, magnetic fluid 3, floating plate 4, container 5, and a basic board 6A is B, balance is generated with a weight 10 having the total weight B, and when the total weight of the weight 10 is B+W, the container 5 is slided upwardly together with the basic board 6A. Therefore, the container 5 and a driving jig 1 are always pressed each other by a constant weight W. The weight W is equal to the sum of the floating plate 4 and the buoyancy of a polished article 12, and forms the working load for the polished article 12. In this state, the polished article 12 is immersed into the magnetic fluid 3 containing abrasive grains in the container 5, and the driving jig 1 is operated, and the polished article 12 is polishing-worked by the working load W, pressed onto the driving surface of the driving jig 1.

43. 发明专利

JP2001070472A MACHINE FOR HEALTH 失效
公开(公告)号：JP2001070472A
公开(公告)日：2001-03-21
申请号：JP24742299
申请日：1999-09-01
申请人： NOZAWA MUTSUO , KATO YASUSHI
发明人： KATO YASUSHI , NOZAWA MUTSUO
IPC分类号： A61H1/02 , A63B21/005 , A63B23/04 , A63B24/00
摘要： PROBLEM TO BE SOLVED: To smoothly start the operation of a step type machine for health by providing a rectifying and control circuit and a secondary battery, charging generated electricity and arranging a switch in an electric circuit without pass ing through the rectifying and control circuit. SOLUTION: When a pair of left and right step boards are arranged in a machine for health so as to be freely and alternately rocking possible, both feet are put on the pair of step boards for doing step exercises. Then a rocking motion is converted into a rotary motion via a connecting rod, a power generator 1 commonly used as an electric motor is operated and power is generated. Generated electricity is supplied to equipment to be used 13 via the rectifying and control circuit 12. Besides, a current flowing in the power generator 1 is controlled and the load of the generator 1, that is, the operation load of the machine for health is controlled. Generated power is charged in the secondary battery 16 as necessary. Then the switch 14 is closed when the operation of the machine is started so that the power generator 1 works as the electric motor by the power of the secondary battery 16. Thus, the operation of the machine 1 is easily started.

44. 发明专利

JPH0541394B2 失效
公开(公告)号：JPH0541394B2
公开(公告)日：1993-06-23
申请号：JP17315885
申请日：1985-08-08
申请人： JGC CORP , KATO YASUSHI
发明人： KATO YASUSHI , UMEHARA TOKUJI
IPC分类号： B24B31/112 , B24B37/00

45. 发明专利

JPH0248169A GRINDER WITH MAGNETIC FLUID 失效
公开(公告)号：JPH0248169A
公开(公告)日：1990-02-16
申请号：JP19714188
申请日：1988-08-09
申请人： KATO YASUSHI , JGC CORP
发明人： KATO YASUSHI , UMEHARA TOKUJI , ADACHI SHIGERU , SATO SHIN
IPC分类号： B24B37/00
摘要： PURPOSE:To completely separating the abrasive grain and shavings from magnetic fluid to reduce the quantity of magnetic fluid required for grinding a spherical work by turning a driving lap with a spherical work held by both the internal face of a vessel-like float in the lap liquid inside the flat. CONSTITUTION:With a vessel-like float 5 floating in magnetic fluid 9 in an external vessel 4, the magnetic field is generated for the magnetic fluid 9 by a magnetic field generating means 8 to give the floating force to the float 5. While a spherical work 3 to be ground is held in the lap liquid 10 contained in the float 5 by both the internal face 6 of the float 5 and the driving lap 1, the driving lap 1 is turned to grind the spherical work 3. During the grinding since the abrasive grain contained in the lap liquid 10 and shavings are completely separated from the magnetic fluid 9, the quantity thereof required for grinding may be reduced and the replacement of abrasive grain be facilitated.

46. 发明专利

JPH01284736A SPHERE ROLLING FRICTION TESTING MACHINE 失效
公开(公告)号：JPH01284736A
公开(公告)日：1989-11-16
申请号：JP11263088
申请日：1988-05-11
申请人： KATO YASUSHI , AKAZAWA MAKOTO , JGC CORP
发明人： AKAZAWA MAKOTO , KATO YASUSHI
IPC分类号： G01N3/56
摘要： PURPOSE:To easily conduct a test in a short time by clamping a sphere to be tested so that the axis of rotation of a sphere holding shaft runs in the center of the sphere to be tested, and placing a load and further rotating the sphere. CONSTITUTION:The sphere 2 to be tested which is clamped between sphere support shafts 1a and 1b and is loaded between a driving roller 4 and a driven roller 7 rotates by receiving a frictional force by the rotation of the driving roller 4. Simultaneously, the driven roller 7 also rotates by receiving a frictional force from the sphere 2 to be tested. Thus, the sphere 2 to be tested rolls between the driving roller 4 and driven roller 7 and rolling friction increases at the equator part in contact with them. During this period, the sphere 2 to be tested and driven roller 7 follow up the friction to move toward the driving roller 4 by the load from a loading device 11 according to sphere holding base guide rods 9a and 9b and a guide means such as a ball slide unit, so that the sphere 2 to be tested is applied with an invariably constant load.

47. 发明专利

JPH01271168A POLISHING DEVICE USING MAGNETIC FLUID 失效
公开(公告)号：JPH01271168A
公开(公告)日：1989-10-30
申请号：JP9837788
申请日：1988-04-22
申请人： KATO YASUSHI , JGC CORP
发明人： KATO YASUSHI , UMEHARA TOKUJI , ADACHI SHIGERU , SATO SHIN
IPC分类号： B24B11/02 , B24B37/00
摘要： PURPOSE:To enable a rolling unit of high quality, used in a bearing, and a constitutional member, well familiarized with this rolling unit, to be simultaneously manufactured by using a member, constituting the bearing with a workpiece, for at least one part of the parts for a driving lamp, guide ring internal wall and a float to come into contact with the workpiece. CONSTITUTION:A spherical workpiece 3 is used serving as the rolling unit of a bearing, while holding the workpiece 3 in abrasive grain-contained magnetic fluid 7 by a driving lap 1, internal wall surface of a guide ring 4 and a flat 5 receiving levitating force by a magnetic field formed in the magnetic fluid 7 by a magnet 6, the workpiece 3 is polished into high sphericity by rotating the driving lap 1. Here the bearing polishes its inner ring member 8a mounted to the bottom end part of the driving lap 1 brought into contact with the workpiece 3, outer ring member 9a mounted to a part containing a contact surface with the workpiece 3 in the internal wall surface of the guide ring 4 and even the inner ring member 8b mounted to the flat 5 simultaneously being well familiarized with the workpiece (rolling unit) 3.

48. 发明专利

JPH01271165A POLISHING DEVICE USING MAGNETIC FLUID 失效
公开(公告)号：JPH01271165A
公开(公告)日：1989-10-30
申请号：JP9463188
申请日：1988-04-19
申请人： KATO YASUSHI , JGC CORP
发明人： KATO YASUSHI , UMEHARA TOKUJI , ADACHI SHIGERU , SATO SHIN
IPC分类号： B24B11/02 , B24B37/00
摘要： PURPOSE:To obtain a ball unit of high sphericity while continuing a workpiece to be properly held and facilitated in its setting to a proper position by providing a movement preventing surface, which prevents the workpiece from moving in the radial direction of a driving lap, in a float in its upper end part. CONSTITUTION:While a spherical workpiece 3 is held is magnetic fluid 7, containing an abrasive grain, by a driving lap 1, float 5 receiving levitating force by a magnetic field formed by a magnet 6 and the internal peripheral surface of a guide ring 4, the workpiece 3 is polished by rotating the driving lap 1. Here the flat 5 forms in its upper end part a movement preventing surface 8 for preventing the workpiece 3 from moving in the axial direction of the driving lap 1. As a result, the workpiece 3 can be easily arranged along this movement preventing surface 8 in a peripheral edge part of the flat 5, and setting the driving lap 1 from the upper enabling the workpiece 3 to be surely held to a proper position, a ball unit of high sphericity can be obtained by preventing movement of the workpiece 3, when it is polished, by rotating the driving lap 1.

49. 发明专利

JPH01271163A POLISHING DEVICE USING MAGNETIC FLUID 失效
公开(公告)号：JPH01271163A
公开(公告)日：1989-10-30
申请号：JP9462988
申请日：1988-04-19
申请人： KATO YASUSHI , JGC CORP
发明人： KATO YASUSHI , UMEHARA TOKUJI , ADACHI SHIGERU , SATO SHIN
IPC分类号： B24B11/02 , B24B37/00
摘要： PURPOSE:To obtain a ball unit of very excellent sphericity and surface roughness by using a driving lap, consisting of one kind of resin and cast iron or ceramics, for finish polishing a workpiece. CONSTITUTION:While holding a spherical workpiece (for instance, ball unit used for a ball bearing) 3 in magnetic fluid 7 by a driving lap 1, float 5 given floating force by the magnetic field formed in the magnetic fluid 7 by a magnetic field forming means (magnet) 6 and the internal peripheral surface of a guide ring 4, the driving lap 1 is rotated, polishing the workpiece 3 into a ball of high sphericity. Here for finish polishing the workpiece 3, the driving lap 1, consisting of one kind of resin and cast iron or ceramics, is used. In this way, the spherical workpiece 3 enables its sphericity and surface roughness to be improved.

50. 发明专利

JPH01271162A POLISHING DEVICE USING MAGNETIC FLUID 失效
公开(公告)号：JPH01271162A
公开(公告)日：1989-10-30
申请号：JP9462888
申请日：1988-04-19
申请人： KATO YASUSHI , JGC CORP
发明人： KATO YASUSHI , UMEHARA TOKUJI , ADACHI SHIGERU , SATO SHIN
IPC分类号： B24B11/02 , B24B37/00
摘要： PURPOSE:To enable a ball unit of high sphericity to be stably further efficiently manufactured over a long time with no replacement of a driving lap by forming it into a cylindrical shape and specifying its thickness. CONSTITUTION:While holding a spherical workpiece 3 in magnetic fluid 7, containing an abrasive grain, by a float 5 receiving floating force by the magnetic field formed in the magnetic fluid by a magnet 6, driving lap 1 and the internal peripheral surface of a guide ring 4, this driving lap 1 is rotated, polishing the spherical workpiece 3. Here the driving lap 1 forms a cylindrical shape, setting its thickness B larger than 0.2D and smaller than (D-A). Here the alphabet D shows a diameter of the spherical workpiece 3, while the alphabet A shows a distance between the internal peripheral surface of the guide ring 4 and the external wall surface of the driving lap 1. Thus by setting the thickness B, a ball unit of high sphericity can be stably further efficiently manufactured over a long time with no replacement of the driving lap 1.

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