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31. 发明专利

JPH04197989A ELEVATOR DOOR CONROL DEVICE 失效
公开(公告)号：JPH04197989A
公开(公告)日：1992-07-17
申请号：JP32315490
申请日：1990-11-28
申请人： HITACHI LTD
发明人： ONO YOICHI , TAKAHASHI HIDEAKI , KOMATSU TSUTOMU , AOKI KAZUMITSU
IPC分类号： B66B13/14
摘要： PURPOSE:To regulate control of door opening and closing time by rectifying door velocity command value based on the difference between the door velocity and the door range using door velocity and position detecting means, and controlling a motor based on the difference between the velocity command value thus rectified and the door actual velocity. CONSTITUTION:An opening and closing command is inputted in a door 21 control device in accordance with a velocity pattern set by time versus velocity, and the velocity command value of each time consumed from the start of opening and closing the door 21 and the prearranged range of the door 21 are calculated. Based on the difference between the actual door 21 velocity and the door 21 position and the velocity command value and the prearranged range detected by the door velocity and position detecting means 11, the velocity command value to compensate the velocity deviation and the distance deviation is rectified. By means of the deviations of the velocity command value and the door 21 velocity, the door 21 control circuit determines the voltage to be supplied to a motor 12. Thus by compensating the velocity deviation and the distance deviation simultaneously, the velocity pattern can be made to follow-up the door velocity with more fidelity. The door 21 opening and closing time can whereby be controlled to be regular.

32. 发明专利

JPH04189294A DOOR SAFETY DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH04189294A
公开(公告)日：1992-07-07
申请号：JP31415990
申请日：1990-11-21
申请人： HITACHI LTD
发明人： KOMATSU TSUTOMU , ONO YOICHI , TAKAHASHI HIDEAKI
IPC分类号： B66B13/26
摘要： PURPOSE:To ensure the safety of passengers by passing and amplifying only a voltage component changed at less than a second unit corresponding to the acess of a human body, of voltage components converted according to a change in electrostatic capacity, and comparing it with a standard voltage to detect the acess of the human body. CONSTITUTION:When a human body approaches, the electrostatic capacity between an antena 1 and the ground is changed from an electrostatic capacity 9 before the acess of the human body to an electrostatic capacity 9. Therefore, a high frequency signal voltage inputted to a converting circuit 3 is fluctuated by the changed amount of the electrostatic capacity, and inputted from the converting circuit 3 to arm AC amplifying circuit 4. Although the basic wave of this fluctuating input voltage is the high frequency signal voltage described above, the component obtained by connecting the peaks forms a low frequency signal having a time constant corresponding to the movement of the human body. The AC amplifying circuit 4 amplifies only the low frequency signal component and generates an output signal. When this output signal is larger than 8 standard value from a sensitivity setting circuit 7, a comparating circuit 5 outputs an output signal So through an output buffer 6.

33. 发明专利

JPH0432488A DOOR CONTROL DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH0432488A
公开(公告)日：1992-02-04
申请号：JP13830790
申请日：1990-05-30
申请人： HITACHI LTD
发明人： ONO YOICHI , TAKAHASHI HIDEAKI , KOMATSU TSUTOMU , AOKI KAZUMITSU
IPC分类号： B66B13/14 , B66B13/00 , B66B13/22
摘要： PURPOSE:To make reversal of a door, and reduce the striking sound of the door against the opening and closing end parts by selecting one pattern out of plural door speed command patterns preset in accordance with the door- position to control the speed of the door when an operating command of 'open' or 'close' of the door is inputted. CONSTITUTION:A MPU previously stores plural, preset door speed command patterns which correspond to a case where a door is opened or closed from the opening and closing end of the door, a case where the door is opened or closed on the way of closing or opening the door, etc. When the door-opening command signal 101 or a door-closing command signal 102 from a elevator-door control device 10 is inputted the MPU 1, the MPU 1 detects the door position based on a detection signal from a door-position and speed detecting means 11. The MPU selects a previously stored speed command pattern which corresponds to the position of the door to control a motor 12 in conformity to the pattern through a base drive circuit 4, a motor drive element 9.

34. 发明专利

JPH0420492A DEVICE FOR CONTROLLING DOOR 失效
公开(公告)号：JPH0420492A
公开(公告)日：1992-01-24
申请号：JP12128790
申请日：1990-05-14
申请人： HITACHI LTD
发明人： TAKAHASHI HIDEAKI , KOMATSU TSUTOMU , ONO YOICHI , AOKI KAZUMITSU
IPC分类号： B66B3/00 , B66B5/02 , B66B13/14 , B66B13/26
摘要： PURPOSE:To avoid increase of torque of a door driving motor in the case where a passenger is caught in doors, and also to change a door speed quickly in a normal state by controlling driving torque of the door driving motor so that the motor can output the driving torque without time lag so as to correspond to a detected value of a rotational speed of the motor, which depends upon a moving speed of the door. CONSTITUTION:If a passenger has been caught in doors while the doors are closing at a constant speed, the doors will stop, and then an electric motor will reduce its rotational speed, and will stop finally. At that time, as the rotational speed of the motor 5 decreases, torque command from a torque commanding circuit 10 increases, on the contrary, a speed value 6a sensed by a speed sensor 6 decreases much more than the increase of the torque command. Accordingly, sum of the torque command 10a and the sensed speed value 6a decreases. Consequently, when the rotational speed of the motor 5 decreases, voltage command 11a from a voltage commanding circuit 11 decreases. For this reason, voltage to be supplied to the motor 5 also decreases. Thus, even if a passenger has been caught in the doors, it is possible to prevent a state dangerous to the passenger by suppressing sudden increase of closing force of the doors.

35. 发明专利

JPH03152084A ELEVATOR DOOR CONTROL DEVICE 失效
公开(公告)号：JPH03152084A
公开(公告)日：1991-06-28
申请号：JP28747889
申请日：1989-11-06
申请人： HITACHI LTD
发明人： ONO YOICHI , KOMATSU TSUTOMU , SASAKI KAZUHIKO
IPC分类号： B66B13/14
摘要： PURPOSE:To obtain a safe elevator door control device by storing in memory an operating position of a position switch which produces a door speed pattern, and by comparing the position with an actual operating position so as to detect a positional defect or a malfunction of the position switch or the like. CONSTITUTION:An elevator control device device 10 inputs data corresponding to a frontage of a door 21, to a door control device so as to inform the door control device of the frontage. Further, the door control device stores in memory positional data from position switches 13 through 16 in accordance with the frontage of the door so as to compute and store in memory the positions of the positions switches 13 to 16 from the positional data. Further, during actual opening and closing of the door 21, the operating positions of the position switches 13 through 16 are stored in memory and compared with the computed positions. If they are above or below, it is determined that the switches are abnormal, and accordingly, the door 21 is operated at a lower speed. With this arrangement, it is possible to prevent the door from bumping upon one end part of the frontage being caused by no deceleration due to a positional defect or a malfunction of the position switches 13 through 16.

36. 发明专利

JPH0364842A NEGATIVE ION SOURCE 失效
公开(公告)号：JPH0364842A
公开(公告)日：1991-03-20
申请号：JP19940489
申请日：1989-08-02
申请人： HITACHI LTD
发明人： YAMASHITA YASUO , ONO YOICHI , GOTO SADANOBU , KAMIIDE YASUO
IPC分类号： H01J27/08 , H01J37/08
摘要： PURPOSE:To raise the transparency of an electrode while keeping an angle of divergence, exclude trouble resulting from material deterioration due to brazing and reduce the number of processes by making up a drawing electrode with a number of square pipes combined, each of which has holes for incorporating a permanent magnet and for carrying electrode cooling water. CONSTITUTION:A drawing electrode, in which permanent magnets are built to separate and remove electrons, drawn out of a plasma together with negative ions, from the negative ions is made up with a number of square pipes 1 combined, each of which has holes 2, 3 for incorporating the permanent magnet and for carrying electrode cooling water. Accordingly, there is no need to braze cooling pipes on the surface of an electrode plate, eliminating trouble such as water leakage and vacuum leak resulting from material deterioration due to brazing. It is thus possible to reduce the number of electrode processes and raise the reliability of ion source because of previous removal of trouble factor.

37. 发明专利

JPH02191877A CRYOPUMP 失效
公开(公告)号：JPH02191877A
公开(公告)日：1990-07-27
申请号：JP975889
申请日：1989-01-20
申请人： HITACHI LTD
发明人： SAHO NORIHIDE , KAMIIDE YASUO , ONO YOICHI , OGATA HISANAO , NEMOTO TAKEO
IPC分类号： F04B37/08
摘要： PURPOSE:To enable an exhaust speed to be increased with passing probability increased by arranging a radiation shield plate parallelly with a gas molecular inflow port surface further with equal width in a multi-stage in the interior direction of a cryopump and providing a cryopanel in a shield plate back surface. CONSTITUTION:A gas molecule to be exhausted in a direction of arrow head from between radiation heat shield plates 1, arranged in a front surface, is allowed to flow in a cryopump. Here the shield plate 1 is arranged in an interior direction of the pump further with a predetermined space on an equal line and cooled by liquid nitrogen or the like to a low temperature held to about 80K. The shield plate 1 arranges in its back surface a cryopanel 2 cooled by liquid helium or the like to a very low temperature, and the cryopump provides in its behind and upper and lower surfaces respectively cooled radiation heat shield plate 3. Black color surface treatment is applied to a pump internal surface side of the shield plates 1 and 3 after the second row increasing a radiation factor. Consequently, the gas molecule is drawn deeper into the pump, further the gas molecule, reflected by the shield plate 1, increases the probability of arriving at the panel 2 opposed facing in a preceding stage.

38. 发明专利

JPH02169486A DOOR CONTROLLER FOR ELEVATOR 失效
公开(公告)号：JPH02169486A
公开(公告)日：1990-06-29
申请号：JP32334488
申请日：1988-12-23
申请人： HITACHI LTD
发明人： KOMATSU TSUTOMU , ONO YOICHI , SASAKI KAZUHIKO , ARAHORI NOBORU
IPC分类号： B66B13/14
摘要： PURPOSE:To prevent the traveling of a cage in the door opened state by installing a rectifier in parallel to an opening/closing means for opening and closing the conduction electric current for the conduction of an opening door side driving element and connecting the anode side of the rectifier with the output side of a closing door side driving element and connections the cathode side with the output side of the opening door side driving element. CONSTITUTION:Even if the cage of an elevator is in traveling or in stop, an opening/ closing means 19 opens a door outside the door opening/closing permission range, and closes the door under other conditions. In the state where the opening/closing means 19 is in opened state, a rectifier 18 is connected in parallel with the opening/ closing means, setting an anode on a closing door side driving element 13 side and a cathode on an opening door side driving element 11 side, in order to suppress the conduction of electric current into the door opening side driving element 11. Therefore, during the traveling or stop of the cage, and outside the door opening/closing permission range, the opening/closing means 19 is in opening sate, and the rectifier 18 is in the conduction cut-off state, and the electric current does not flow in the door opening direction in an electric motor 20, even if the opening door side driving element 11 erroneously operates or is ON-operated because of troubles.

39. 发明专利

JPH01283743A ACCELERATION POWER SOURCE FOR ION SOURCE 失效
公开(公告)号：JPH01283743A
公开(公告)日：1989-11-15
申请号：JP11274788
申请日：1988-05-10
申请人： HITACHI LTD
发明人： YAMASHITA YASUO , ONO YOICHI , GOTO SADANOBU , KAMIIDE YASUO
IPC分类号： H05H5/02 , H01J27/02 , H01J37/248 , H02M9/00
摘要： PURPOSE:To make it possible to control the voltage to be applied to an acceleration electrode with a voltage lower than the voltage applied to the acceleration electrode, by controlling a converter and a high-frequency inverter so as to regulate the output voltage. CONSTITUTION:Converters 10, 20A, and 20B to convert an AC power into a DC power, high-frequency inverters 11, 21A, and 21B to convert the DC power to a DC power of the high-frequency higher than that of the converters, high-frequency transformers 12, 22A, and 22B to raise the output voltage of the high-frequency inverters, and, high-frequency converters 13, 23A, and 23B to convert the AC power into a high voltage of DC power are provided. As a result, the output voltage in each phase can be controlled with a low voltage, and a smoothed AC voltage can be applied to each acceleration electrode. Consequently, each DC power source can be controlled by a voltage lower than the voltage to be applied to each acceleration electrode, and the loss of the total power sources can be reduced.

40. 发明专利

JPH01147173A SUPPLY SYSTEM OF LIQUID HELIUM TO CRYOPUMP 失效
公开(公告)号：JPH01147173A
公开(公告)日：1989-06-08
申请号：JP30564787
申请日：1987-12-04
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： ONO YOICHI , KAMIIDE YASUO , OGATA HISANAO , SHIBATA TAKEYOSHI , SHIBANUMA KIYOSHI
IPC分类号： F04B37/08
摘要： PURPOSE:To feed a cryopanel with such liquid helium that is less in a gas-phasic portion by feeding the cryopanel with the liquid helium directly, not through a gas-liquid separator, at the time of cryopanel precooling. CONSTITUTION:When liquid helium is fed to a cryopanel 3, a stationary valve 4 and a supply valve 6 are opened, while a precooling valve 5 is closed, and such liquid helium that is plenty of a gas phasic portion is separated from the gas phase at a gas-liquid separator 1, then the liquid helium little in the gas phasic portion is fed out of a lower part of the cryopanel 3 through the supply valve 6 and a supply pipeline 7. When the cryopanel 3 is precooled, the stationary valve 4 and the supply valve 6 are closed, and the precooling valve 5 is opened, whereby precooling takes place with liquid helium gas from the lower part of the cryopanel 3. With this constitution, the gas phasic portion inside the cryopanel 3 is little, and since there is a supply of the liquid helium at all times, a surface temperature of the cryopanel 3 is always constant.

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