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1. 发明专利

JPH08259157A DOOR SAFETY DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH08259157A
公开(公告)日：1996-10-08
申请号：JP6082295
申请日：1995-03-20
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： KOMATSU TSUTOMU , ONO YOICHI , HIROSE MASAYUKI
IPC分类号： B66B5/00 , B66B13/28
摘要： PURPOSE: To prevent an accident to be caught in a clearance existing on the landing side of a landing side door. CONSTITUTION: A catching detection device 1 to detect an object intruding into a clearance between a landing side door and a building side wall on which the landing side door works opened and closed is provided on the landing side, and it is devised so that when detection is carried out by the catching detection device 1, the door is stopped by a door control device 2 on the car side, thereafter, the door is moved at low speed by a prescribed distance in the reverse direction by an elevator control device 3 and when detection still continues, it is reported to an emergency liaison office by an external reporting device 4.

2. 发明专利

JPH11292438A SAFETY DEVICE FOR ELEVATOR LANDING DOOR 失效
公开(公告)号：JPH11292438A
公开(公告)日：1999-10-26
申请号：JP10083698
申请日：1998-04-13
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： YOSHIOKA TSUTOMU , ONO YOICHI , KUBO MASAHITO
IPC分类号： B66B3/00 , B66B5/00 , B66B13/28
摘要： PROBLEM TO BE SOLVED: To ensure the safety of a rescue worker when rescuing a passenger in a cage at the time of elevator emergency by external door-opening operation. SOLUTION: In safety for preventing the fall of a rescue worker when a landing side door is opened, in order to rescue a passenger in a cage in unoperatable due to an earthquake or power failure, etc., at emergency in particular, a safety device: for unifying a switch 1 for detecting external opening operation at a landing door, an annunciation device 3 actuated synchronously with this detection, a lighting system 2, and a power device 4 for these apparatuses, is provided near the external landing door opening hole or in an external opening jig.

3. 发明专利

JPH11139733A DOOR CONTROL DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH11139733A
公开(公告)日：1999-05-25
申请号：JP30527897
申请日：1997-11-07
申请人： HITACHI LTD
发明人： NISHIHARA CHIKAYOSHI , ONO YOICHI
IPC分类号： B66B13/14
摘要： PROBLEM TO BE SOLVED: To prevent the emergency stop of elevator due to mischief by detecting whether a door of car is closed or not, whether an elevator is traveling or not and whether the elevator exists in a door opening/closing zone or not, and calling attention with voice and/or a display unit when a passenger is going to forcibly open the door. SOLUTION: A signal (a) is a traveling signal, and a signal (b) is a door opening/closing zone signal, and a signal (c) is a door forcibly opening signal. These signals (a), (b), (c) are processed by an IC 1 of a NOT gate, an IC 2 of an OR gate and an IC 3 of an AND gate, and in the case where an elevator is traveling or exists out of the door opening/closing zone and a door inside the car or a door of a landing is going to be forcibly opened, it is informed by announce 1 or a display unit 3. Similarly, the signals (a), (b), (c) are processed by an IC 4 of the AND gate, and when the door is going to be forcibly opened in the car or the landing during the waiting of the elevator in the door opening/ closing zone, it is informed by announce 2 or a display unit 4.

4. 发明专利

JPH10291755A DOOR CONTROL DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH10291755A
公开(公告)日：1998-11-04
申请号：JP10167797
申请日：1997-04-18
申请人： HITACHI LTD
发明人： KUBOTA HIROKI , ONO YOICHI , HIROSE MASAYUKI , SAKURADA HIROAKI , INOUE KATSUHIRO
IPC分类号： B66B7/00 , B66B13/14
摘要： PROBLEM TO BE SOLVED: To have a control board for common use for new and old elevators at executing renewal by providing a plurality of door driving motor control systems in a door control device so as to enable the control device to control a plurality of door mechanism control, and performing changeover of the control system with a manual switch. SOLUTION: A control board 24 outputs a door opening/closing command to a microcomputer 19 for controlling a door. This door controlling microcomputer 19 can be changed over according to the used control system by a changeover switch circuit 21. Hence, a changeover signal is input to a base drive circuit 18, a pulse command by the program in a memory 26 is supplied to the base drive circuit 18, output voltage is generated by a switching element 16, and a door driving direct current motor 13 or a three-phase alternating current motor 20 is driven. The base drive circuit 18 is provided with a plurality of, for example, about six AND circuits, they are connected to the respective switching elements 16, and the command of the door controlling microcomputer 19 is received according to the control system. Hence, this door control device can deal with the existing door control device at renewal.

5. 发明专利

JPH09290986A ELEVATOR DOOR CONTROL DEVICE 失效
公开(公告)号：JPH09290986A
公开(公告)日：1997-11-11
申请号：JP10682996
申请日：1996-04-26
申请人： HITACHI LTD
发明人： ONO YOICHI , HIROSE MASAYUKI , SAKAMOTO MASAHIRO , HASHIMOTO TAKAYUKI
IPC分类号： B66B13/26
摘要： PROBLEM TO BE SOLVED: To reliably protect a passenger by eliminating a voltage applied to a motor and a door speed command value for a prescribed period to reduce pinching force applied to the passenger when actual door driving torque exceeds a prescribed value. SOLUTION: When a passenger is pinched by a door, a motor current is increased and a MPU 1 judges that the motor is overloaded and makes a speed command zero to shut an ignition signal of a motor driving element 9 and outputs an overload detection signal 103 to an elevator control device 10. The elevator control device 10 turns off an opening command by the overload detection signal 103 and turns on a closing command. Since the speed command is in the direction of closing and the speed command value is high in the direction of closing, the MPU 1 controls the ignition of the motor driving element 9 such that the speed command value generates the torque in the direction of closing to follow the actual speed of the door, whereby the pinching force to the passenger is reduced, which can protect the passenger with ease and reliability.

6. 发明专利

JPH04260590A ELEVATOR DOOR CONTROLLER 失效
公开(公告)号：JPH04260590A
公开(公告)日：1992-09-16
申请号：JP11953691
申请日：1991-02-13
申请人： HITACHI LTD
发明人： ONO YOICHI , TAKAHASHI HIDEAKI , KOMATSU TSUTOMU , HIRATA AKIRA , HASHIMOTO TAKAYUKI
IPC分类号： B66B13/14 , B66B13/22
摘要： PURPOSE:To provide a safe and inexpensive elevator door controller which detects the improper disposure position and malfunction of a door position detecting switch to keep the door at a low speed. CONSTITUTION:An MPU 1 inside a door controller 25 calculated the door position based on a signal from the speed detecting means 11 of a motor 12 which drives a door 21 at the time of opening and closing the door actually, and compares the motion position of a door position detecting switch or an original start point switch 14 for opening and an original start point switch 15 for closing with the door position calculated in the above manner to detect the improper disposure position and malfunction of the door position detecting switch. If abnormality of the siwtch is detected, a door controller 25 controls the door to keep it at a low speed.

7. 发明专利

JPH0313487A DOOR CONTROL DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH0313487A
公开(公告)日：1991-01-22
申请号：JP14682489
申请日：1989-06-12
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 highly reliable door control device by constructing the device in such a way as to discriminate the failure of a door speed detecting means on the basis of speed signals indicating the failure and the on/off action of door position detecting switches, thus outputting a failure signal. CONSTITUTION:The title device is provided with an opening end detecting switch 13 for detecting a door in the opening position, a closing end detecting switch 16 for detecting the door in the closing position, an opening and a closing deceleration starting point detecting switches 14, 15 for detecting the door reaching the deceleration starting point at the opening/closing time. When the state of the speed command exceeding the set value and the state of the detected speed being zero continue for the specified time, and moreover, the action starting of either one of the deceleration starting point detecting switches 14, 15 and the closing end detecting switch 16 is detected at the time of the door closing command, and the action starting of either one of the deceleration starting point detecting switches 14, 15 and the opening end detecting switch 13 is detected at the time of the door opening command, the failure of a speed detecting means 11 is discriminated, and a failure signal TB is generated from a failure discrimination processing means.

8. 发明专利

JPH01190977A NATURAL CIRCULATION SYSTEM CRYOPUMP 失效
公开(公告)号：JPH01190977A
公开(公告)日：1989-08-01
申请号：JP1072588
申请日：1988-01-22
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： ONO YOICHI , SHIBANUMA KIYOSHI , SHIBATA TAKEYORI
IPC分类号： F04B37/08 , F25D3/10
摘要： PURPOSE:To ensure good natural circulation of liquid helium by coating a supply pipe with a heat shield brought into thermal contact with a gas vent pipe or a cryopanel. CONSTITUTION:A supply pipe 5 is coated in the adjacent part to a gas vent pipe 6 with a heat shield 11A formed by aluminum or the like brought into thermal contact with the gas vent pipe 6. This supply pipe 5 is coated in a part in the vicinity of a cryopanel 1A with a heat shield 11B formed by aluminum or the like brought into thermal contact with the cryopanel 1A. Thus because the heat shields 11A, 11B are cooled to a temperature of liquid helium, the supply pipe 5 enables its intrusion heat to be decreased as small as neglectable. Accordingly, even in a cryopump applying a measure of reducing the intrusion heat to the cryopanels 1A-1C, good natural circulation of the liquid helium can be ensured.

9. 发明专利

JPS63272768A DOOR CONTROLLER FOR ELEVATOR 失效
公开(公告)号：JPS63272768A
公开(公告)日：1988-11-10
申请号：JP10428687
申请日：1987-04-30
申请人： HITACHI LTD
发明人： KOMATSU TSUTOMU , SAKATA KAZUHIRO , ONO YOICHI
IPC分类号： B66B13/14

10. 发明专利

JPS6360887A ESCALATOR FOR WHEELCHAIR 失效
公开(公告)号：JPS6360887A
公开(公告)日：1988-03-16
申请号：JP20371686
申请日：1986-09-01
申请人： HITACHI LTD , HITACHI ELEVATOR ENG
发明人： KOJIMA WAHEI , UMEZAWA YUKIHIRO , SAKATA KAZUHIRO , ONO YOICHI
IPC分类号： B66B25/00 , B66B31/00

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