WO2005121005A1 - エレベータシステム - Google Patents
エレベータシステム Download PDFInfo
- Publication number
- WO2005121005A1 WO2005121005A1 PCT/JP2004/008564 JP2004008564W WO2005121005A1 WO 2005121005 A1 WO2005121005 A1 WO 2005121005A1 JP 2004008564 W JP2004008564 W JP 2004008564W WO 2005121005 A1 WO2005121005 A1 WO 2005121005A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elevator
- pressure control
- rescue
- failure
- car
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 42
- 230000005856 abnormality Effects 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 230000002159 abnormal effect Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 6
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009474 immediate action Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
- B66B11/024—Ventilation systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
Definitions
- the present invention relates to an elevator system provided with a pneumatic pressure control device for controlling the internal pressure of a car when the elevator is moved up and down.
- a pressure control device for controlling the air pressure in the car has been provided to reduce the influence in the car due to changes in air pressure such as ⁇ . It is considered that the atmospheric pressure is always kept at the minimum (for example, Japanese Patent Application No. 10-877-189).
- the elevator system requires immediate action to ensure passenger safety in the event of any abnormalities. This is because, for example, the driving of the car could be hindered and the vehicle could not run normally, and in some cases, abnormalities occurred in the white body of the vehicle.
- Always available for pressure control device operation The same is true in the case of failure.
- the sealing inside the car is extremely high. Ensuring proper ventilation is an important issue
- the purpose of the present invention is to ensure the safety of the passengers in the car by taking appropriate action promptly in response to the operating state of the eletricator and the state of the air pressure control in the event of an abnormality.
- the goal is to provide a possible elevator system.
- an elevator control device for controlling the operation of a vehicle, and a pressure control device for controlling a pressure by rotating a blower installed in a passenger car are provided.
- the elevator operating state monitoring means for monitoring the operating state of the elevator controller and the air pressure control state for monitoring the operating state of the upper pressure controller in the elevator system having When the monitoring means and the elevator operation state monitoring means detect an abnormality in the elevator operation, or when the pneumatic control state monitoring means detects an abnormality in the pneumatic control.
- a rescue control means for selectively executing a specific rescue process according to the importance of the fault at that time.
- the importance of the failure is determined based on the operation state of the elevator and the state of the barometric pressure control in the event of an abnormality.
- the rescue process is performed promptly with due consideration for the importance of the obstacle.In other words, for example, if an abnormality in the barometric pressure control is detected, it is determined that a serious failure has occurred, and The forced ventilation mode to secure airflow is executed.
- the elevator can be landed on the nearest floor or a specific designated floor, and the car in the above-mentioned car is in a normal state. If there is, the operation state of the barometric pressure control
- the rescue operation mode for dropping the passenger in the above-mentioned passenger at the nearest floor or a specific designated floor is executed.
- the elevator cannot land on the nearest floor or a specific designated floor. If it is determined that the fault is minor or serious depending on the operation state of the control, ⁇ , if the pressure control is normal, it is determined that a minor failure has occurred.
- the ventilation control mode is executed to ensure the exchange of air pressure.On the other hand, if the pressure control is different, the forced ventilation Be executed.
- the door of the upper 6L car is manually opened to be opened with restrictions, or By forcibly rotating the blower installed in the
- FIG. 1 is a block diagram showing a schematic configuration of an elevator system according to an embodiment of the present invention.
- Fig. 2 is a block diagram showing the functional configuration of the above-mentioned electronic system.
- FIG. 3 is a flow chart for explaining the operation of the above-described electronic system.
- FIG. 4 is a flowchart for explaining the operation of the above-mentioned elevator system.
- FIG. 5 is a characteristic diagram showing the relationship between the amount of change in air pressure and time for explaining the air pressure control operation.
- FIG. 6 is a characteristic diagram showing the relationship between the amount of change in air pressure and time for explaining the ventilation control operation.
- FIG. 1 is a block diagram showing a schematic configuration of an elerator system according to an embodiment of the present invention.
- This elevator system has a configuration in which a pressure system is added to the normal elevator system.
- the normal elevator system is different from the normal elevator system in that the operation of the entire elevator including, for example, group control is performed.
- This is a control system.- This is an elevator control device installed in a machine room, etc.
- the barometric pressure system is a system for controlling the barometric pressure inside the car 13 when the elevator rises and descends. This barometric pressure system detects the riding power and the barometric pressure inside the car 13. Barometric pressure sensor 1
- Riding force intake air for raising the air pressure in the vehicle 13 5
- Riding power air pressure for reducing the air pressure in the 13
- It consists of duct pipes 16a, 16b connecting 3 to blowers 15a, 15b, and a pressure control device 12, which drives and controls these devices.
- the barometric pressure control device 12 is installed in the boarding space 13.
- the air pressure control device 12 is used to reduce the riding comfort due to the change in air pressure inside the vehicle 13 when the elevator is traveling at an extremely high speed on a high floor.
- the air intake pro 15 a and the exhaust blower 15 installed in the rider 13 are provided.
- the number of rotations of b is controlled by an inverter.
- the pressure control device 12 also serves to adjust the ventilation in the car 13 by rotating the intake blower 15a and the exhaust gas fan 15b. .
- each of the elevator controller 11 and the barometric pressure controller 12 is realized by a computer whose operation is controlled by a program.
- FIG. 2 is a block diagram showing the functional configuration of the elevator system. Functionally showing the elevator system of the present invention, together with the elevator controller 11 and the barometric pressure controller 12 described above, the elevator operating state monitoring unit 21, the barometric pressure control state monitoring unit 22, It is composed of a major failure judgment section 23, a rescue mode switching section 24, a first table 25, a second table 26, and the like.
- the elevator control device 11 is a device for controlling the operation of the elevator.
- the elevator control device 11 is provided with an elevator operation state monitoring unit 21 for monitoring the operation state (normal Z abnormal state) of the elevator.
- the air pressure control device 12 is a device that controls the air pressure in the car 13 in synchronization with the elevating operation of the elevator (car 13).
- the main operation control of this barometric pressure controller 12 is as follows.
- -Ventilation control operation Intake / exhaust operation using a constant air flow instead of air pressure control according to the elevator abnormality or running conditions (constant air flow A, B as shown in Fig. 6). Air intake / exhaust operation), and circulate the air in the car 13 to ventilate.
- the pressure control device 12 also includes a pressure control state monitoring unit 22 for monitoring the operation state of the pressure control (normal Z abnormal state).
- the light / heavy failure determination unit 23, the rescue mode switching unit 24, the first table 25, and the second table 26 constitute a rescue control device 27.
- This rescue controller 27 When an abnormality in the beta operation is detected or an abnormality in the barometric pressure control is detected, a specific rescue process is selectively executed according to the importance of the fault at that time.
- the light / heavy failure determination section 23 acquires the elevator operating state from the elevator operating state monitoring section 21 and the air pressure control operating state from the atmospheric pressure control state monitoring section 22 to obtain the elevator operation and air pressure. If an abnormality is detected with less than the first control, the first
- the first staple 25 has two failure levels, a minor failure and a major failure.
- the rescue module switching unit 2 in which various conditions for judging as a minor failure or a major failure according to the operating state of the collector and the operating state of the air pressure control are registered in advance. 4 means j 'if the minor or major failure is judged by the minor / major failure judging section 23 to ensure the safety of the passengers in the ride 13
- the rescue mode is then switched to the rescue mode.For example, if the elevator can run at low speed, the elevator (ride 13) is used. Move to the nearest floor or a designated floor (floor designated as evacuation floor).
- the second table 26 shows various conditions and when to apply which rescue mode and when. Both are registered in advance
- the rescue controller 27 which is composed of a light / major failure judgment section 23, a rescue mode switching section 24, a first table 25, and a second table 26, is a soft It is realized by a controller, and is provided, for example, as one function of the level control unit 11.
- a power source 32 is an inverter device
- Reference numeral 3 3 denotes a hoisting machine, which is installed in the machine room together with the elevator controller 11, and a power supply 31 is a drive source of the elevator.
- the inverter device 32 operates with the power supply 31 as a drive source, and is wound in accordance with a drive command from the machining level controller 11.
- main opening 34 is wound around a sieve provided on the rotating shaft of the hoisting machine 33 for rotating the upper machine 33, and the main A car 13 and a counterweight 35 of a predetermined weight are attached to both ends of the package 34, respectively.
- the rider 13 and the power cutout 35 are lifted and lowered in the hoistway in a hoistway with the rotation of the sheave.
- the air pressure detected by the air pressure sensor 14 is input to the pressure control device 12.
- the suction port V 15 a and the exhaust port 15 b are driven to rotate by a drive signal output from the air pressure control device 12. Sucking
- the air in the riding basket 13 is produced by the rotation of the air blower 15a and the intake of the ride 13 by the rotation of the exhaust pipe 15b. Next, the operation of the present system will be described.
- the processing operation of this system can be divided into (a) basic operation ⁇ (b) operation at power failure and (C) operation at abnormal
- the air pressure control device 12 controls the intake air blower 15a and the exhaust blower 15b to rotate and ride.
- you ventilate the inside of car 13 you will not be able to get around anymore.
- the door can be opened manually with restrictions and the intake blower installed in the car 13 using a battery etc. can be used.
- the riding power and ventilation in the passenger compartment 13 shall be forcibly secured by a method such as forcibly rotating the exhaust blower 15a or the exhaust blower 15b. This is referred to as “ventilation forced securing mode K j”.
- ventilation control mode J Rotate 5a and exhaust blower 15b to secure ventilation in car 13 and wait for rescue. This is called “ventilation control mode J”.
- the elevator rescue Possible state regardless of the operation state of the barometric pressure control, the state at that time is regarded as a minor failure, and the elevator is located on the nearest floor or a specified designated floor. After moving to 1, open the door and drop the passengers in car 13. This is called the “x-beta rescue operation mode”.
- the air pressure in the car 13 is always maintained at the minimum value by the operation control of the air pressure control device 12. This prevents a sense of incongruity caused by a change in air pressure during elevating and lowering, and also ensures ventilation of the passenger car 13 ⁇ .
- An abnormality in elevator operation refers to a state in which normal operation services (such as moving to a target floor at a rated speed in response to a hall call or a car call) cannot be performed. Let's review.
- the minor / major failure determination unit 23 determines whether the importance of the failure is minor or major according to the state of elevator operation and air pressure control at the time of abnormality. In this case, can the landing E elevators force s most Yadorikikai or a particular designated floor to the (evacuation floor) (Step Tsu-flops S 1 2
- part 2 4 convey the (stearyl class tap S 1 4) rescue mode K switching it 2 4, light - Ri switch to ⁇ current a a ivy best rescue mode based on the major fault determination unit 2 3 determination result Replace.
- the rescue mode switching unit 24 reads “2nd table 2
- step S12 when abnormal operation of the elevator is detected, the elevator does not land on the nearest floor or a specific designated floor (No at step S12). If the floor of the car 13 is broken even if landing on that floor is possible (step S1
- minor / major failure judging unit 23 is a minor or major failure based on the operation state of barometric pressure control monitored by barometric pressure monitoring unit 22 Judge. In this case, if the air pressure control is normal (No in step S16), the light / heavy fault judging section 23 sets the first table 25 under these conditions. By retrieving the information, the state at that time is determined to be a minor failure, and the fact is notified to the rescue mode switching unit 24 (step Three
- the rescue mode switching unit 24 displays the following condition under the condition that ⁇ level operation error + normal pressure control + minor fault ''.
- At least one of the exhaust valves 15a and 15b rotates under the control of the pressure control device 12 so that the exchange in the car 13 is ensured.
- the barometric pressure control abnormality means that the rider: The intake blower 15a and the exhaust
- the rescue mode switching unit 24 searches for the second technical record 26 under the condition of ⁇ ("Elector operation error + atmospheric pressure control error + severe fault"). By doing so, switch to the “forced ventilation secure mode J” (Step S20). Specifically, for example, the door of the car 13 is manually operated. The air intake blower 15a and the exhaust blower 15b in the passenger car 13 by forcibly rotating the vehicle. Or forcibly secure ventilation within 13.
- ⁇ Electric operation error + atmospheric pressure control error + severe fault
- an announcement such as “Please pour the door open” may be output «9, and a message may be displayed on the screen.
- a small window dedicated to ventilation which can be used only in emergency situations, is provided in the boarding area, or for example, a voice such as "Please open the ventilation window” is output as voice. It is also good to encourage the passengers in the car 13 to ventilate by displaying messages on the screen, etc.
- the elevator operation is normal (step (No at S11)
- the barometric pressure control is abnormal (Ye at step S12)
- the minor / major failure judging section 23 refers to the first table 25 » and then judges that the state is a minor failure, and rescues the rescue mode. Inform switching unit 24. Rescue mode switching unit 2
- the passenger in the car 13 is moved by moving the elevator (car 13) to the nearest floor or a specific designated floor. To rescue.
- the major failure determination unit 23 determines that the state at that time is a major failure, and notifies the rescue mode switching unit 24 of that.
- the rescue mode switching unit 24 When the power failure occurs, the ventilation forced
- the operating state of the eletricator and the operating state of the barometric pressure control are monitored, and if an abnormality occurs, the appropriate rescue mode is switched according to the situation at that time.
- the safety of passengers in the car can be ensured.
- the top priority is to secure ventilation inside the passenger compartment, and in highly sensitive elevators such as elevators with super-high speeds and high floors. It can improve safety.
- the failure when an abnormality occurs in the operation of the elevator or in the air pressure control, it is determined whether the failure is a minor failure or a major failure according to the state at that time.
- the importance of the failure is classified into Revenore 1 to 5, for example, and the severity of the failure is determined in more detail, and the rescue mode is selectively switched according to the importance. This can be achieved by setting conditions and countermeasures according to their importance in the first table 25 and the second table 26.
- the present invention is not limited to the above-described embodiment, and may be variously modified in the implementation stage without departing from the gist of the invention. Is possible
- the highest priority is to secure ventilation inside the rider, so that highly sensitive levels such as super-stagnation and high-floor level elevators can be used. It can increase the safety of the data.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Elevator Control (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/008564 WO2005121005A1 (ja) | 2004-06-11 | 2004-06-11 | エレベータシステム |
CNB2004800056105A CN100519387C (zh) | 2004-06-11 | 2004-06-11 | 电梯系统 |
US11/204,995 US7267203B2 (en) | 2004-06-11 | 2005-08-17 | Elevator including operation, atmospheric pressure and rescue control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/008564 WO2005121005A1 (ja) | 2004-06-11 | 2004-06-11 | エレベータシステム |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/204,995 Continuation US7267203B2 (en) | 2004-06-11 | 2005-08-17 | Elevator including operation, atmospheric pressure and rescue control |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005121005A1 true WO2005121005A1 (ja) | 2005-12-22 |
Family
ID=35502962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008564 WO2005121005A1 (ja) | 2004-06-11 | 2004-06-11 | エレベータシステム |
Country Status (3)
Country | Link |
---|---|
US (1) | US7267203B2 (ja) |
CN (1) | CN100519387C (ja) |
WO (1) | WO2005121005A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018043802A (ja) * | 2016-09-12 | 2018-03-22 | 株式会社日立製作所 | エレベータ装置 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006001082A1 (en) * | 2004-06-29 | 2006-01-05 | Toshiba Elevator Kabushiki Kaisha | Blower controller for elevator system |
US20170232978A1 (en) * | 2007-04-18 | 2017-08-17 | Thyssenkrupp Transrapid Gmbh | Method and device for preventing fast changes of the internal pressure in an enclosed space |
CA2696165C (en) * | 2007-08-06 | 2012-10-09 | Thyssen Elevator Capital Corp. | Control for limiting elevator passenger tympanic pressure and method for the same |
JP5225286B2 (ja) * | 2007-11-09 | 2013-07-03 | 三菱電機株式会社 | エレベータ気圧制御装置 |
JP5235992B2 (ja) * | 2008-06-13 | 2013-07-10 | 三菱電機株式会社 | エレベータ制御装置およびエレベータ装置 |
CN102171126B (zh) * | 2008-11-12 | 2013-11-27 | 三菱电机株式会社 | 电梯装置 |
JP4607219B2 (ja) * | 2008-12-26 | 2011-01-05 | 東芝エレベータ株式会社 | エレベータの安全装置 |
JP4775826B2 (ja) * | 2009-01-22 | 2011-09-21 | 東芝エレベータ株式会社 | エレベータ装置 |
CN102414107B (zh) * | 2009-07-21 | 2014-11-05 | 三菱电机株式会社 | 电梯装置 |
CN102574663B (zh) * | 2009-12-16 | 2014-10-01 | 三菱电机株式会社 | 电梯的运转装置 |
US9114953B2 (en) | 2011-12-29 | 2015-08-25 | Inventio Ag | Emergency operation of elevators based on an indicated emergency condition |
CN103771221A (zh) * | 2012-10-24 | 2014-05-07 | 通用电梯(中国)有限公司 | 一种电梯空气压力控制系统 |
CN103787168A (zh) * | 2012-10-29 | 2014-05-14 | 通用电梯(中国)有限公司 | 一种电梯气压控制系统 |
TWI622548B (zh) * | 2012-12-13 | 2018-05-01 | 伊文修股份有限公司 | 用於人員輸送設備的監視裝置、人員輸送設備、以及用於監視人員輸送設備之方法 |
JP6258066B2 (ja) * | 2014-02-24 | 2018-01-10 | 株式会社日立製作所 | エレベーター装置及び気圧制御方法 |
JP2015165169A (ja) * | 2014-03-03 | 2015-09-17 | 株式会社日立製作所 | エレベータ装置 |
JP6272118B2 (ja) * | 2014-04-16 | 2018-01-31 | 株式会社日立製作所 | 気圧制御装置付きエレベータおよびその設定方法並びに製造方法 |
JP6602896B2 (ja) * | 2016-02-08 | 2019-11-06 | 株式会社日立製作所 | エレベータ装置 |
CN109368424B (zh) * | 2018-12-13 | 2020-12-01 | 日立楼宇技术(广州)有限公司 | 一种电梯的控制方法、装置、设备和存储介质 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5943780A (ja) * | 1982-09-07 | 1984-03-10 | 株式会社東芝 | 防爆エレベ−タの制御方法 |
JPH09100077A (ja) * | 1995-10-03 | 1997-04-15 | Hitachi Building Syst Co Ltd | エレベータの救出運転装置 |
JP2003118943A (ja) * | 2001-10-17 | 2003-04-23 | Toshiba Elevator Co Ltd | エレベータ装置 |
JP2004010286A (ja) * | 2002-06-07 | 2004-01-15 | Toshiba Elevator Co Ltd | エレベータ換気装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US1767988A (en) * | 1929-01-26 | 1930-06-24 | Otis Elevator Co | Ventilating apparatus |
US4592270A (en) * | 1984-07-16 | 1986-06-03 | Vener Alvin S | Smoke and fire protection system for elevators |
DE59002831D1 (de) * | 1989-09-22 | 1993-10-28 | Inventio Ag | Vorrichtung für die Belüftung von schnellaufenden Aufzugskabinen. |
JPH0798629B2 (ja) * | 1989-10-23 | 1995-10-25 | 三菱電機株式会社 | エレベータかご室の換気装置 |
US5354233A (en) * | 1992-10-02 | 1994-10-11 | Man-D-Tec, Inc. | Emergency ventilation system for elevator cab |
JP3251863B2 (ja) | 1996-09-17 | 2002-01-28 | 株式会社東芝 | エレベータ装置 |
JP4245392B2 (ja) * | 2003-03-27 | 2009-03-25 | 東芝エレベータ株式会社 | エレベータのかごドア装置 |
US7059958B2 (en) * | 2003-12-08 | 2006-06-13 | Inventio Ag | Elevator cabin with integrated ventilation system |
-
2004
- 2004-06-11 CN CNB2004800056105A patent/CN100519387C/zh not_active Expired - Fee Related
- 2004-06-11 WO PCT/JP2004/008564 patent/WO2005121005A1/ja active Application Filing
-
2005
- 2005-08-17 US US11/204,995 patent/US7267203B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943780A (ja) * | 1982-09-07 | 1984-03-10 | 株式会社東芝 | 防爆エレベ−タの制御方法 |
JPH09100077A (ja) * | 1995-10-03 | 1997-04-15 | Hitachi Building Syst Co Ltd | エレベータの救出運転装置 |
JP2003118943A (ja) * | 2001-10-17 | 2003-04-23 | Toshiba Elevator Co Ltd | エレベータ装置 |
JP2004010286A (ja) * | 2002-06-07 | 2004-01-15 | Toshiba Elevator Co Ltd | エレベータ換気装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018043802A (ja) * | 2016-09-12 | 2018-03-22 | 株式会社日立製作所 | エレベータ装置 |
Also Published As
Publication number | Publication date |
---|---|
US7267203B2 (en) | 2007-09-11 |
CN1774383A (zh) | 2006-05-17 |
CN100519387C (zh) | 2009-07-29 |
US20060051189A1 (en) | 2006-03-09 |
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