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1. 发明专利

JP2001239444A STRAIGHT CUP GRINDING WHEEL MEMBER AND METHOD AND DEVICE FOR MACHINING WORKPIECE END FACE BY USE OF THE SAME 失效
公开(公告)号：JP2001239444A
公开(公告)日：2001-09-04
申请号：JP2000049087
申请日：2000-02-25
申请人： SEIKO SEIKI KK
发明人： ARAI SHIGEHIRO
IPC分类号： B24B55/02 , B24B1/00 , B24B19/00 , B24B57/02
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive straight cup grinding wheel member capable of performing machining providing satisfactory surface coarseness efficiently in a short time and forming a curved face having a plurality of curvatures (R) on a workpiece end face and a method and a device for machining a workpiece end face using the straight cup grinding wheel member. SOLUTION: Two kinds of straight cup grinding wheels 8-1, 8-2 having different diameters are arranged on a coaxial shaft like a double inner and outer structure at a tip of one grinding wheel shaft 7. Among both inner and outer straight cup grinding wheels, the straight cup grinding wheel 8-1 on the outer side employs a comparatively coarse mesh for rough machining, and the straight cup grinding wheel 8-2 on the inner side employs a comparatively fine mesh for finish machining.

2. 发明专利

JP2001207983A GAS COMPRESSOR 失效
公开(公告)号：JP2001207983A
公开(公告)日：2001-08-03
申请号：JP2000017360
申请日：2000-01-26
申请人： SEIKO SEIKI KK
发明人： YODA SEIICHIRO
IPC分类号： F04C23/00 , F04C18/344 , F25B1/00 , F25B1/04 , F25B1/10 , F25B9/00 , F25B31/00
摘要： PROBLEM TO BE SOLVED: To provide a vane rotary type gas compressor implementing high pressure difference required for a CO2 refrigeration cycle. SOLUTION: A low pressure intake compressing portion 23 takes therein low pressure CO2 gas from low pressure intake ports 19, 19-2, compresses the CO2 gas to be intermediate pressure, and discharges the compressed CO2 gas to an intermediate pressure discharge port 21. A high pressure compression intake compressing portion 24 takes therein the intermediate pressure CO2 gas which is discharged from the intermediate pressure discharge port 21, from intermediate pressure intake ports 20, 20-2. The high pressure compression intake compressing portion compresses the intermediate pressure CO2 to be high pressure, and discharges the high pressure gas to a high pressure discharge port 22. Intermediate pressure CO2 gas is replenished with CO2 gas from an external refrigerant gas supply port 28 to make up for shortage of capacity by two state compression.

3. 发明专利

JP2001175195A DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME 失效
公开(公告)号：JP2001175195A
公开(公告)日：2001-06-29
申请号：JP36052099
申请日：1999-12-20
申请人： SEIKO SEIKI KK
发明人： ISHII KAZUNORI , SHIZAWA YOSHIHIRO
IPC分类号： G09F9/00 , G02F1/1345
摘要： PROBLEM TO BE SOLVED: To improve the quality of a display device by automating the connection of panel terminals disposed on the two sides of a liquid crystal display panel and substrate terminals disposed on the two sides of a film substrate on the back of the panel. SOLUTION: A spacer 3 having ruggedness at both side end faces 3a and 3b is previously adhered to the back of a substrate terminal part 2a of the film substrate 2 and fasteners 10 are engaged with the ruggedness at both side end faces of the spacer 3. While the spacer 3 is grasped by the fasteners 10 from both sides, the spacer 3 and the parts near the substrate terminal 2 of the film substrate 2 are turned back and the substrate terminal 2b is disposed to oppose the substrate terminal 2b to the panel terminal 1b. Both are then aligned and press bonded by image processing.

4. 发明专利

JP2001162464A COIL SPRING INSTALLATION SYSTEM 失效
公开(公告)号：JP2001162464A
公开(公告)日：2001-06-19
申请号：JP35391699
申请日：1999-12-14
申请人： SEIKO SEIKI KK
发明人： MAKISHIMA YUTAKA
IPC分类号： B23P21/00
摘要： PROBLEM TO BE SOLVED: To provide a system requiring no previous alignment of coil springs for the purpose of allowing a grip of a pick and place device or the like when installing the coil spring to a work by the pick and place device, a robot or the like, to omit a tray storage operation or the alignment by a parts feeder. SOLUTION: In this system, the coil spring 1 fed out of a coil spring forming machine 20 one by one is directly received and gripped by the pick and place device 17 or the robot. The gripped coil spring 1 is directly installed to the work 11 conveyed on a conveyer 15. By gripping and installing the coil spring 1 one by one, the conventional alignment or the like is unnecessary.

5. 发明专利

JP2001115978A GAS COMPRESSOR 失效
公开(公告)号：JP2001115978A
公开(公告)日：2001-04-27
申请号：JP29630599
申请日：1999-10-19
申请人： SEIKO SEIKI KK
发明人： SEKIGUCHI HIROAKI
IPC分类号： F04C18/344
摘要： PROBLEM TO BE SOLVED: To prevent generation of vane chattering by preventing jumping delay of the vane at starting of a gas suction stroke in a low-speed-rotation operation and a low-compression-ratio operation in a steady state. SOLUTION: An angle range of a block portion 8A is narrowed, and lubricating oil is supplied to the rear end of a vane in a back pressure chamber 5 when a vane groove 3 comes to a position corresponding to a circular arc portion 14 with short diameter. An angle interval between the circular arc portion 14 with short diameter and a gas suction window portion 9A is shortened, and a high gas G contained between the tip 4a of the vane and the circular arc portion 14 with short diameter is rapidly escaped to the gas suction window portion 9 as soon the tip 4a of the vane passes through the circular arc portion 14 with short diameter of the inner cylindrical surface 1b of a cylinder.

6. 发明专利

JP2001056026A MAGNETIC BEARING SYSTEM 失效
公开(公告)号：JP2001056026A
公开(公告)日：2001-02-27
申请号：JP22855699
申请日：1999-08-12
申请人： SEIKO SEIKI KK
发明人： TOKI NAGATAKE , ODATE YOSHINOBU
IPC分类号： H02K7/09 , F16C32/04 , F16C39/06
摘要： PROBLEM TO BE SOLVED: To provide a magnetic bearing system miniaturized by shortening length of an overall system in the axial direction of a rotor. SOLUTION: Radial sensors 24b, 24f detect displacement in the radial direction in the Xs axial direction separated by an angle αfrom radial electromagnets 24a, 24e to regulate displacement in the radial direction in the X axial direction. Additionally, radial sensors 24d, 24h detect displacement in the radial direction in the Ys axial direction separated by an angle β from radial electromagnets 24c, 24g to regulate displacement in the radial direction in the Y axial direction. Consequently, the detected displacement in the radial direction is converted to the X axial direction and the Y axial direction which are arranged directions of each of the radial electromagnets 24a, 24c, 24e, 24g, each of the radial electromagnets 24a, 24c, 24e, 24g is magnetized, and adjustment of the displacement in the radial direction is carried out.

7. 发明专利

JP2001041239A MAGNETIC BEARING DEVICE 失效
公开(公告)号：JP2001041239A
公开(公告)日：2001-02-13
申请号：JP21442499
申请日：1999-07-28
申请人： SEIKO SEIKI KK
发明人： YAMAUCHI AKIRA
IPC分类号： F16C32/04
摘要： PROBLEM TO BE SOLVED: To remarkably reduce the number of coils of which an electromagnet consists as static rigidity and high frequency responsiveness are improved, in a radial magnetic bearing consisting of an electromagnet having a bias coil and a control coil. SOLUTION: An electromagnet 1 comprises an annular core 2 consisting of four-division annular core pieces 2a-2d and eight magnetic holes 21-28 situated at equal intervals on the same periphery: four bias coils 3a-3d wound around the respective magnetic poles; and four control coils 4a-4d. In the electromagnet, four electrode magnet parts of an electromagnet part 1a on the +Y-axis side, an electromagnet part 1b on the -Y-axis side, an electromagnet part 1c on the +X-axis side, and an electromagnet part 1d on the -X-axis side. Gaps 5a-5d working as a high magnetic resistance means are provided between adjoining annular core pieces 2a-2d and mutually independent so that the magnetic passages of the electromagnet parts 1a, 1b, 1c, and 1d do not interfere with each other.

8. 发明专利

JP2000337290A VACUUM PUMP 失效
公开(公告)号：JP2000337290A
公开(公告)日：2000-12-05
申请号：JP14909799
申请日：1999-05-28
申请人： SEIKO SEIKI KK
发明人： KABASAWA TSUYOSHI , NONAKA MANABU , OKADA TAKASHI
IPC分类号： F04D17/16 , F04D19/04 , F04D29/30 , F04D29/38
摘要： PROBLEM TO BE SOLVED: To provide a vacuum pump capable of increasing air molecular weight coming in an exhaust system and improving exhaust efficiency as much as possible. SOLUTION: A guide vane 80 is integrally installed on an upper end part of a rotor 60 on a vacuum pump 1 constituted by forming an exhaust system 13 to rotationally drive the rotor 60 in front of an air suction port 16 in a casing 12 having the air suction port 16 and to draw in air molecules A from the air suction port 16 nad exhaust in the peripheral direction along the axial direction on an peripheral outside part of this rotor 60. This guide vane 80 gives a kinetic component to reflect the air molecules A drawn in on the upper end part of the rotor 60 from the air suction port 16 to the inlet side of the exhaust system 13 toward the outside in the diametrical direction.

9. 发明专利

JP2000274385A GAS COMPRESSOR 失效
公开(公告)号：JP2000274385A
公开(公告)日：2000-10-03
申请号：JP7637899
申请日：1999-03-19
申请人： SEIKO SEIKI KK
发明人： IJIRI MAKOTO
IPC分类号： F04C29/12 , F04C18/344 , F04C28/10 , F04C29/00 , F04C29/02 , F04C29/06 , F04C29/10
摘要： PROBLEM TO BE SOLVED: To provide a gas compressor capable of surely preventing pressure fluctuation caused by a reverse flow from a compression chamber from being propagated without enlarging the whole of the gas comprresor. SOLUTION: In this gas compressore provided with a gas compression part 10 compressing gas by means of a rotor 17 rotatably provided in a cylinder chamber 16 whose inner circumference is in an ellipse shape, a gas feeding part 60 sucking gas from the outside for feeding it to the gas compression part 10, and with a control plate 30 controlling the volume of gas to be sucked in to the gas compression part 10, the gas feeding part 60 is formed out of the casing 11 of the gas compressor, and of a partitioning plate 19 partitioning the casing 11 in the vertical direction with respect to a rotor shaft 17a, and is provided with a large sized chamber 62 including an inner diametral cross section.

10. 发明专利

JP2000274384A GAS COMPRESSOR 失效
公开(公告)号：JP2000274384A
公开(公告)日：2000-10-03
申请号：JP7987899
申请日：1999-03-24
申请人： SEIKO SEIKI KK
发明人： TAKATSU HIDEHISA
IPC分类号： F04C23/02 , F04C18/344
摘要： PROBLEM TO BE SOLVED: To increase the inertial moment of a rotation part such as a rotor, rotor shaft, or pulley and suppress the compression torque fluctuation by providing an inertial moment addition part on the rotation part. SOLUTION: An annular inertial moment addition part 24 is extended from the circumferential part of a pulley 10 between the circumferential part of the pulley 10 and a case body 12 for covering a gas compressor body. The inertial moment addition part 24 is integrally formed with the pulley 10. When the inertial moment addition part 24 is provided between the pulley 10 and the case body 12, the inertial moment of a rotation part can be increased without enlarging the gas compressor. When the inertial moment addition part 24 is set to an annular form having a large diameter, the inertial moment/weight can be efficiently increased with hardly loosing the balance in rotation, and the manufacture is also facilitated. According to this, the compression torque fluctuation can be suppressed, and generation of an abnormal sound in a steering or piping system can be prevented.

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