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71. 发明专利

JPH0674852A AUTOMATIC FIELD BALANCING MECHANISM OF ROTATOR 失效
公开(公告)号：JPH0674852A
公开(公告)日：1994-03-18
申请号：JP29781991
申请日：1991-09-19
申请人： HITACHI SHONAN DENSHI
发明人： MISAWA KENICHI
IPC分类号： G01M1/36
摘要： PURPOSE:To correct unbalance of a rotator without stopping it and to positively cope with the rotator changing with time. CONSTITUTION:When a detector 5 detects the amount of unbalance on rotation of a rotator 1, a controller 8 obtains the amount of control of a weight drive means 7 based on the detection. A weight drive means 7 is driven according to the obtained amount of control and each 6a-6d of a weight 6 moves in a direction for absorbing the amount of unbalance, thus changing the gravity position of the rotator 1. Therefore, since the gravity position of the rotator 1 can be changed easily during rotation, balance can be adjusted without stopping the rotator 1, thus coping with the rotator which changes the balance with time.

72. 发明专利

JPH0573154A PRESSURE CONTROLLER 失效
公开(公告)号：JPH0573154A
公开(公告)日：1993-03-26
申请号：JP23166991
申请日：1991-09-11
申请人： HITACHI SHONAN DENSHI
发明人： ARAYA TAKESHI , ASUWA NOBUKAZU , SATO KENICHI
IPC分类号： G05D16/20
摘要： PURPOSE:To shorten the processing time deciding the degree of opening of a solenoid valve and to improve the response. CONSTITUTION:A detection sensor 3 converts the detection pressure into the frequency and outputs, and a comparison part 4 compares detection frequency f2 with reference frequency f1 to be converted into the voltage at its output, thus adjusting the degree of opening of a flow control valve 2 based on the frequency of the result. Therefore, the processing time can be shortened because each pressure sensor 3, reference frequency generation part 7, and comparison part 4 takes the frequency as a unit at its input/output without the A/D conversion of a signal from the detection sensor 3 and without complicating the degree of opening of a control valve 2 based on a detection signal. The air with the required pressure can be accurately fed from a flow control valve 2 to a supply part.

73. 发明专利

JPH0541659A COUNTER CIRCUIT USING STORAGE ELEMENT 失效
公开(公告)号：JPH0541659A
公开(公告)日：1993-02-19
申请号：JP19626991
申请日：1991-08-06
申请人： HITACHI SHONAN DENSHI
发明人： NOZAKI HIDEYO
IPC分类号： H03K21/00
摘要： PURPOSE:To simplify the configuration of circuit and to easily perform N-ary counting operation (N is integer higher than 2) without changing the circuit configuration. CONSTITUTION:A storage element 1 stores a counting transition state data group corresponding to various type of counting operations, enabling selectively and successively reading one counting transition state data group by inputting a counting operation control signal 4 as a host address to the storage element 1. Namely, the counting transition state data to be read successively through a latch 2 acts on the storage element 1 as a low-order address, and the required counting transition state data can be successively obtained when successively updating the reading address.

74. 发明专利

JPH04367400A METHOD AND DEVICE FOR CONTROLLING PRESS 失效
公开(公告)号：JPH04367400A
公开(公告)日：1992-12-18
申请号：JP14009591
申请日：1991-06-12
申请人： HITACHI SHONAN DENSHI
发明人： MURAI TOSHIAKI
IPC分类号： B30B1/18 , B30B15/00 , B30B15/14 , B30B15/28 , G05B11/06 , G05D15/01
摘要： PURPOSE:To prevent the nonuniformization of the quality of a product with a fluctuation in pressuring force by detecting the pressuring force of a ram on a work and correcting the pressuring force in accordance with the detected value at the time of pressing the work by the ram which is driven by a servo motor. CONSTITUTION:A counter for the number of working is previously set and the reference value P for accumulation of the pressurization by the ram is set (41) at the time of operating the press device. The work is worked (42) after the ram descends at a high speed from a top dead under position down to a deceleration point position by the command from a controller. The controller adds the detected pressure obtd. when a pressure sensor detects (43) the pressuring force, by which the pressuring force P is updated (44). The ram ascends (45) from the bottom dead under to the top dead under position in a first time. Whether the number of working is the preset number N of times or not is decided (47) upon counting up (46) and the working is repeated (42) until the number N of times is attained when the number N of times is not attained. The average value P/N of P is calculated (48) when the number N of times is attained and is compared and computed (49) with the reference value P. The pressuring force of the ram is corrected (50) by the result thereof.

75. 发明专利

JPH04364440A THERMAL-SHOCK TESTING APPARATUS 失效
公开(公告)号：JPH04364440A
公开(公告)日：1992-12-16
申请号：JP13997491
申请日：1991-06-12
申请人： HITACHI LTD , HITACHI SHONAN DENSHI
发明人： SONODA HIDEHIRO , HAYASHIDA TATSUO
IPC分类号： G01N3/60
摘要： PURPOSE:To omit the introduction of outer air which is the cause of frosting and to eliminate the interruption time of a test due to frost removal by providing an independent dry-air storing chamber, and circulating the air in a test chamber. CONSTITUTION:The air in a high temperature chamber 2 is returned to heater 3 by way of the heater 3, a blower 4 and a heat accumulator 5. Heating is performed to a specified temperature. The air in a low temperature chamber 10 is also returned to a cooler 11 by way of the cooler 11, a blower 13 and a cool-air accumulator 24. Cooling is performed to a specified temperature. The temperature is kept constant with a heater 12. After the high-temperature air and the low-temperature air are prepared in this way, high-temperature dampers 7 and 9 are opened, and the high- temperature air is made to flow into a test chamber through a hot air diffusing port 6 and circulated in the chamber. The air is returned into the high-temperature chamber through a hot-air sucking port 8. Temperature stress at the high temperature is imparted by the circulation of the hot air. By the same way, temperature stress at the low temperature is imparted with the constitution of low-temperature dampers 15 and 17, a cool-air diffusing port 16 and a cool-air sucking port 16. Frosting is eliminated by omitting the introduction of outer air in this way.

76. 发明专利

JPH04295936A DATA BASE IDENTIFICATION SYSTEM FOR DUPLEX PERSONAL COMPUTER SYSTEM AND PROTECTIVE RECOVERY SYSTEM FROM TROUBLE 失效
公开(公告)号：JPH04295936A
公开(公告)日：1992-10-20
申请号：JP6072691
申请日：1991-03-26
申请人： HITACHI SHONAN DENSHI
发明人： NAGANO MAKOTO
IPC分类号： G06F11/16 , G06F11/20 , G06F12/16 , G06F15/16
摘要： PURPOSE:To enable a subordinate personal computer side to perform a data gathering process as a substitute when trouble occurs to a main personal computer side in a data base identification state. CONSTITUTION:Various inspection data are gethered to the main personal computer 1 through each terminals 5, but when the personal computer 1 and subordinate personal computer 3 perform specific processes automatically corresponding to events except in trouble occurrence, the personal computers 1 and 3 can identify a data base at all times. When the terminals 5 are switched to the personal computer 3 in case of trouble occurrence on the side of the personal computer 1 and the personal computer 3 operates as a substitute for the personal computer 1, the personal computer 3 serves as the main personal computer thereafter.

77. 发明专利

JPH04180853A CONSISTENT TREATMENT MACHINE FOR GARBAGE CRUSHING, GRINDING AND DEHYDRATING 失效
公开(公告)号：JPH04180853A
公开(公告)日：1992-06-29
申请号：JP30614790
申请日：1990-11-14
申请人： HITACHI KIYOUSHIYOU KK , HITACHI SHONAN DENSHI
发明人： ENOMOTO KURAJIROU , MORITA SHINJI , SUGANO KAZUO , KUROSAKI MINORU
IPC分类号： B09B5/00 , B02C21/00 , B04B3/04
摘要： PURPOSE:To separate a liquid component and a solid component with high efficiency by automatically and consistently crushing, grinding and dehydrating intermittently charged garbage by providing a crusher, a grinder and a dehydrator. CONSTITUTION:A hopper 1a, a spline shaft 11b, the pulley 1d externally fitted to the spline shaft 1b in a freely slidable manner and the drive means 1e thereof, a rotary cutter 1c, a spline pipe shaft 1f, a stirring arm 1k, a pulley 1g and the drive means 1h thereof and a cylinder 11 are provided to a crusher 1. A grinding screw 3b, a perforated plate 3d and a grinding blade 3e are arranged to a grinder 3. Further, a centrifugal dehydrating cylinder 4a and a dehydrating screw 4c are provided to a dehydrator 4. As a result, intermittently charged garbage is continuously, automatically and consistently crushed, ground and dehydrated and a liquid component and a solid component can be separated with high efficiency.

78. 发明专利

JPH0440357A ELECTROPHORESIS DEVICE 失效
公开(公告)号：JPH0440357A
公开(公告)日：1992-02-10
申请号：JP14531590
申请日：1990-06-05
申请人： HITACHI SHONAN DENSHI
发明人： MIYAZAWA TOMOYUKI , KOJIMA HIROOMI , UCHIDA YOSHIKAZU , BABA NORIO , NISHINO KENJI
IPC分类号： G01N27/26 , B01D57/02 , G01N27/447
摘要： PURPOSE:To prevent the destruction of a migration sample by constituting the device of electrodes of a superconductor ceramic material which has the superconducting transition temp. of ordinary temp. or above and below the destruction temp. of a migration sample and turns to an insulator at the temp. above the destruction temp. of the migration sample. CONSTITUTION:Both of the positive electrode 7 and the negative electrode 8 are constituted of the material of the superconductor ceramics. The superconducting transition temp. is the temp. exceeding ordinary temp. in order to maintain nearly 0 electric resistance at ordinary temp. These electrodes are the insulators so as not to be energized when the migration sample attains about the temp. at which the sample is destroyed. Then, the positive electrode 7 and the negative electrode 8 are the good conductors at the temp. above ordinary temp. and are the insulators and are not energized upon attainment of the destruction temp. of the migration sample and, therefore, the migration sepn. is not adversely affected in the event of an abnormal rise of the temp. of a migration chamber 1 by a cause, such as cooling water 22.

79. 发明专利

JPH0440356A ELECTROPHORESIS DEVICE 失效
公开(公告)号：JPH0440356A
公开(公告)日：1992-02-10
申请号：JP14531490
申请日：1990-06-05
申请人： HITACHI SHONAN DENSHI
发明人： BABA NORIO , KOJIMA HIROOMI , MIYAZAWA TOMOYUKI , UCHIDA YOSHIKAZU
IPC分类号： G01N27/447
摘要： PURPOSE:To enhance the sepn. performance of a migration sample and t automate the sepn. and refining of the migration sample by providing a bubble removing means which removes the bubbles existing in the buffer soln. in a migration chamber. CONSTITUTION:A buffer soln. is previously injected from an introducing hole 3 into the migration chamber 1 to form parallel flow. The migration sample is cracked to each of the respective components when the migration sample is injected from an injection pipe 4 into the chamber. These components are fraction collected from a fraction collection port via a fraction collection pipe 7. The bubbles float on the buffer soln. surface if the bubbles exist in the buffer soln. at this time. The bubbles are sucked through a pass filter 19 for gas, a filter retainer 21 and a suction pipe 23 into a vacuum pump 22 and are dis charged to the outside. Namely, the bubbles can be surely discharged even if the bubbles exist in the buffer soln. and, therefore, the sepn. performance of the migration sample is enhanced. In addition, the efficiency of the sepn. operation is enhanced as well as the bubbles can be removed even if a power source is not interrupted.

80. 发明专利

JPH047514A OPTICAL ISOLATOR 失效
公开(公告)号：JPH047514A
公开(公告)日：1992-01-10
申请号：JP10871190
申请日：1990-04-26
申请人： HITACHI SHONAN DENSHI
发明人： KOJIMA HIROOMI
IPC分类号： G02B27/28
摘要： PURPOSE:To obtain stable performance with a small size by integrating a Faraday element and a magnet and constituting the central part as a material having a Faraday effect and the outer peripheral part as the inclination function material of a superconducting material. CONSTITUTION:This optical isolator is constituted as the cylindrical inclination function material integrated with the coil of the superconducting material and the Faraday element. The superconducting material in the side face part of the cylindrical inclination function material, the central part of which is the Faraday element and the side face part of which is the superconducting material, functions as a toric coil to magnetize the Faraday element of the central part. The plane of polarization of the Faraday element is, therefore, rotated 45 deg. when the linearly polarized light passes this element. Although the operations and functions as the optical isolator are exactly the same as those of the conventional optical isolators, size over the entire part of the optical isolator is reduced by the integration of the Faraday element and the toric coil.

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