CN102092608B - Elevator with high electronization safety device - Google Patents
Elevator with high electronization safety device Download PDFInfo
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- CN102092608B CN102092608B CN 201010583263 CN201010583263A CN102092608B CN 102092608 B CN102092608 B CN 102092608B CN 201010583263 CN201010583263 CN 201010583263 CN 201010583263 A CN201010583263 A CN 201010583263A CN 102092608 B CN102092608 B CN 102092608B
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Abstract
An elevator with a high electronization safety device in the invention si used fro preventing abnormal operation of an elevator control system controlling operation of an elevator car, in the elevator, a safety circuit (4) and a brake (8) are included, wherein, the safety circuit (4) is used for controlling power supply and power cut-off of an elevator control system (3), the brake (8) is controlled by the elevator control system (3), and is used for braking the elevator car, the safety circuit (4) and the brake (8) can be controlled by a safety controller (1) capable of realizing multi safety functions and according to each safety function. According to the elevator in the invention, while satisfying requirements for high functions of the elevator control system, the elevator can appropriately dispose the safety controller, thereby really improving reliability and facilitating maintenance related to safety.
Description
Technical field
The present invention relates to a kind of elevator, this elevator setting has safety sensor and safety device (safety governor, emergency braking apparatus etc.), can prevent abnormal operation and the operation that may cause danger, the present invention is particularly useful for the elevator of high function electronization.
Background technology
In recent years, High Level along with the control function of elevator device, be provided with the control of controlling and suppress the various complexity such as control of shock of elevator car be used to the group management of controlling many lift cars in elevator device, linking between the operation control of elevator and security-related control is intricate, beyond thought fault may occur.
As prior art, a kind of electronic safety system is for example disclosed in patent documentation 1, it is in order to strengthen the safe operation of elevator, and in order elevator to be stopped when precarious position being detected, adopt communication bus to carry out the exchange of control signal and data-signal between the controller that is mainly consisted of by microprocessor and various sensor.In addition, a kind of scheme is for example disclosed in patent documentation 2, it is for fear of in fact not having the electronic security(ELSEC) controller to occur at the state of controlling, to be arranged to and to communicate between elevator control part and electronic security(ELSEC) controller, and can confirm the communications status between elevator control part and electronic security(ELSEC) controller in the timing of regulation.
In above-mentioned prior art, owing to carrying out the transmission of data between the controller that is mainly consisted of by microprocessor and various sensor by communication, so can confirm whether the communication function between those controllers and sensor is normal, the situation such as not delay but fully take into account speed of response required concerning various sensors (safety device group) and response.
especially, in end floor forced deceleration function (ETS function), require emergency braking apparatus and drg etc. to have very sensitive response performance, in the disclosed scheme of patent documentation 2, the ETS device is according to the signal by the governor coder output that can produce the detection signal corresponding with the rope sheave rotating photo of governor, obtain moving velocity and the position of lift car, and whether the moving velocity that monitors near the lift car the floor of end has reached the mistake speed that ETS monitors, and according to the detection signal that is arranged on the reference position sensor in hoist trunk, information to the elevator car position obtained in the ETS device is revised.
Therefore, no matter safety governor is arranged on hoist trunk also is arranged on lift car, all very long transmission path need to be set in order to communicate, so emergency braking apparatus and drg possibly can't reach desired performance fully.
Patent documentation 1: the special table 2002-538061 of Japan communique
Patent documentation 2: the international communique that discloses No. 2006/106575
Summary of the invention
The object of the invention is to solve existing problem in above-mentioned prior art, when the multifunction of satisfying elevator device requires, can safety governor suitably be set for various sensors (safety device group), thereby can improve effectively reliability, and can be easy to carry out and security-related maintenance.
to achieve these goals, the invention provides a kind of elevator of safety device height electronization, it is used for preventing that the apparatus for controlling elevator that the operation of lift car is controlled from carrying out abnormal operation, the elevator of described safety device height electronization has vital circuit and drg, described vital circuit is used for controlling power supply supply and the supply disconnecton to described apparatus for controlling elevator, described drg is controlled by described apparatus for controlling elevator, be used for described lift car is braked, and described vital circuit and described drg can be controlled according to each described security function by the safety governor that can realize multiple security function.
(invention effect)
According to the present invention, because vital circuit and drg can be controlled according to each described security function by safety governor, so can distinguishing individually, the control function of apparatus for controlling elevator and multiple security function realize, thus, safety governor can corresponding with the multifunction of elevator device and suitably be set, thereby can improve reliability, and can be easy to carry out the maintenance of secure context.
Description of drawings
Fig. 1 means the block diagram of one embodiment of the present invention.
Fig. 2 means the lateral plan of the arrangement structure of one embodiment of the present invention.
Fig. 3 is the diagram of circuit of one embodiment of the present invention.
Fig. 4 is the diagram of circuit of one embodiment of the present invention.
Fig. 5 means the block diagram of other embodiments of the present invention.
Fig. 6 means the lateral plan of the arrangement structure of other embodiments of the present invention.
Fig. 7 means the block diagram of another other embodiments.
Fig. 8 means the block diagram of another other embodiments.
Fig. 9 is the reference diagram that the embodiment to Fig. 8 describes.
Nomenclature
1 safety governor
2 second safety governors
3 apparatus for controlling elevator
4 vital circuits
5 emergency braking apparatus
6 position transdusers
7 speed sensors
8 drgs
9 electrical motors
11 safety device groups
The specific embodiment
Below, with reference to accompanying drawing, elevator device involved in the present invention is described.
Fig. 1 means the block diagram of the basic structure of elevator device, Fig. 2 means the lateral plan of the arrangement structure of the elevator device that comprises elevator lifting channel, in elevator, in hoist trunk in being formed on building, cross over the lift car 20 that a plurality of floors move and link by hoist cable 21 and counterbalanced weight 22.
The movement of lift car 20 is undertaken by electrical motor 9.Apparatus for controlling elevator 3 carries out power conversion and the electric power after power conversion is supplied to electrical motor 9 as driving with electric power.The impulse generator of coder etc. is installed on electrical motor 9,3 pairs of pulses that generate along with the rotation of electrical motor 9 of apparatus for controlling elevator are counted, come thus speed, lift car 20 to electrical motor 9 equivalent locations and the miles of relative movement etc. on the hoist trunk moving direction to calculate, so that lift car rests in elevator lobby.Be provided with in lift car 20 and make the elevator cab door that opens and closes together with elevator hall door 23 with elevator hall door 23 engaging.
Be provided with limit switch 24 in hoist trunk, this limit switch 24 is safety switchs, and it moves when lift car 20 has surpassed common moving range, cuts off the electricity supply and emergency braking apparatus is moved, and elevator is stopped rapidly.
In Fig. 1, apparatus for controlling elevator 3 is connected with power supply 10 by vital circuit 4, for the fundamental operation of enforcement elevator, is driving motor 9 specifically so that lift car moves, and makes lift car rest in the floor of the regulation in a plurality of floors.Power supply 10 is generally three phase mains, vital circuit 4 is contactless switch (electromagnetic contactor or the solid-state relay) circuit with a plurality of input terminals, when elevator is carried out emergency braking or occuring when abnormal, vital circuit 4 cuts off the electricity supply 10, to stop the power supply to apparatus for controlling elevator 3.
The safety governor 1 that is consisted of by microprocessor, the position detector 6 of floor is especially detected and for detection of incoming signal the roller type speed sensor 7 of elevator car speed in its position for detection of lift car on being arranged on lift car, and an input terminal outputting cutting severed finger in a plurality of input terminals of vital circuit 4 makes, the action command of the drg 8 (lift car is braked) of electrical motor or winch and instruction that the electrodynamic type emergency braking apparatus 5 that is arranged on lift car is moved.Detect when abnormal at apparatus for controlling elevator 3, safety governor 1 is according to another input terminal outputting cutting severed finger order to vital circuit 4 of the detection signal of apparatus for controlling elevator 3.
Safety device group 11 (safety switch) has the limit switch 24 that is arranged in hoist trunk, be arranged on the elevator lobby door switch that opens and closes for detection of elevator hall door of elevator lobby side and be arranged on the elevator hole switch etc. of hoist trunk bottom, and the signal of safety device group 11 is input in safety governor 1.
Safe condition shown in safety governor 1, it is output in the maintenance device 17 that is connected with safety governor 1, and it is as the situation of the signal of inputting in safety governor 1 and be output with the security-related running-active status of operating state.Be displayed on telltale and LED with security-related running-active status, the maintenance personnel maintain device by confirmation, can more successfully maintain operation.
Below, the detection that is the action of safety device group 11 to the function of safety governor 1 with reference to Fig. 3 describes.This function is for the function that is arranged on the safety switch in hoist trunk, is other functions except the overspeed protection function of lift car 20 are obtained respectively the function of processing.In addition, when certain switch in the safety switch in being arranged on hoist trunk has carried out action, be judged as elevator and precarious position occurred.That is to say, when variation has occured in the input of obtaining (S101), safety governor 1 is judged as " precarious position has appearred in elevator " (S102), export the instruction of cutting off the electricity supply to vital circuit 4, and for elevator is stopped, exporting the instruction (S103) that drg 8 is moved.
Represent that by record which safety device (safety switch) abnormal daily record (resume of recording exceptional information) has occured (S104), make show log information in maintenance device 17, thus, the maintenance personnel can confirm maintenance information when needed at any time.
Below, illustrate that with reference to Fig. 4 another function of safety governor 1 is the ETS function.The ETS function is to detect overrunning and the function that when overrunning, elevator is stopped being detected of lift car 20, and it obtains the location information of lift car by position transduser 6, and obtains the velocity information of lift car by roller type speed sensor 7.Be used for processing that lift car 20 is stopped, and its minute in two stages (S201～S203 and S206～S208) carry out.
Detect current location and the velocity information (S201) of lift car by position transduser 6 and speed sensor 7, with lift car the speed of current position with compare (S202) based on the threshold value in the drg action command output table of current location and speed.When lift car, is judged as elevator and is in normal operating condition and end process during less than the threshold value in drg action command output table (S204) in the speed of current position.That is to say, drg action command output table is to record lift car in the data sheet of the permissible velocity value of each position.
When lift car in the speed of current position during greater than the threshold value of regulation, as the processing of F/s, the instruction (S206) that the instruction of cutting off the electricity supply to vital circuit 4 outputs and the drg 8 that makes electrical motor move.
With lift car the speed of current position with compare (S207) based on the threshold speed in the emergency braking apparatus action command table of present speed and current location., before lift car stops fully, continue by braking and cut off the electricity supply to make elevator to stop (S209) during less than threshold speed in current speed.In current speed during greater than threshold speed, as the processing of subordinate phase, the instruction (S211) that output is moved electrodynamic type emergency braking apparatus 5.
Roller type speed sensor 7 from the lift car side with roller by being pressed on guide rail, by the coder that is arranged on roller, the speed of lift car 20 is detected thus.Speed sensor can use and anyly can detect the speed sensor of elevator car speed on lift car 20, for example, as the non-contact type speed sensor, can list the sensor that detects by sound wave or electric wave, by tape or make guide rail magnetization etc. utilize the sensor that magnetic field detects and utilize reflective photoelectric sensor that reflection of light detects etc.
According to above embodiment, vital circuit 4 and drg 8 can by safety governor 1 according to for the function that is arranged on the safety device group 16 in hoist trunk and each security function such as function of carrying out end floor forced deceleration according to position and the velocity information of lift car, be controlled individually.Therefore, can consider with various sensors (safety device group) bases that when communicating, required speed of response or response are delayed etc. on, as shown in drawings, safety governor 1 is arranged in the control panel of hoist trunk side, and also safety governor 1 can be arranged on the lift car side, so, can be according to the needs of various and security-related function, safety governor is carried out optimal placement or dispersed placement, thereby can be easy to prevent that response from delaying with blackout etc.Especially, the degree of freedom by increase designs can reduce that response is delayed etc. when adopting the ETS function, thereby can shorten the length of hoist trunk.
And, can make each and security-related function separate by apparatus for controlling elevator, and can show and security-related running-active status, thus maintenance and become more convenient with the checking of security-related function, thus can improve the reliability of secure context.
It is decentralized and be provided with other embodiments of two safety governors that Fig. 5 and Fig. 6 are expressed as the function that makes safety governor, in this embodiment, is provided with the second safety governor 2 in the control panel side, is provided with safety governor 1 in the lift car side.
The signal that is arranged on the safety device group 11 (safety switch) in hoist trunk 16 is imported in the second safety governor 2.The second safety governor 2 is according to the action of safety device group 11, the instruction that input terminal outputting cutting severed finger order in a plurality of input terminals of vital circuit 4 and output are moved the drg 8 of electrical motor or winch.
As shown in Figure 6, safety governor 1 is independent of the second safety governor 2 and arranges, for example, safety governor 1 is arranged on lift car, and formed by different microprocessors, from be arranged on equally on lift car for detection of the position transduser 6 of elevator car position and be transfused to signal for detection of the roller type speed sensor 7 of speed, and input terminal outputting cutting severed finger order in a plurality of input terminals of vital circuit 4 and output instruction that the electrodynamic type emergency braking apparatus 5 that is arranged on lift car is moved.The motion detection functionality of the safety device group 11 shown in the diagram of circuit of second responsible enforcement Fig. 3 of safety governor 2, the ETS function shown in the diagram of circuit of the responsible enforcement Fig. 4 of safety governor 1.
Because safety governor 1 is arranged on lift car 20, so can share security function with the second safety governor 2, can improve reliability, especially can shorten the transmission distance when communicating with the device relevant with the ETS function of position transduser 6, speed sensor 7 and electrodynamic type emergency braking apparatus 5 etc., can further improve speed and the reliability of communication, reduce operating lag etc., thereby can further improve performance.
That is to say, in the ETS function, the operating lag of various sensors is larger, the idling stopping distance of lift car (free running distance) is longer, thereby the elevator that needs to deepen hoist trunk is cheated the degree of depth to guarantee surplus capacity, affected by it, for hoist trunk, its length that can shorten is restricted.
Especially, as prior art, be arranged on governor in hoist trunk and coder be arranged on the pulley of governor when detecting the speed of lift car, because the electrodynamic type emergency braking apparatus 5 that lift car 20 is braked is arranged on lift car, so no matter which position safety governor is arranged on, communication delay during from from hoist trunk to lift car speed of transmission information all can increase, and makes the length that is difficult to shorten hoist trunk.In addition, due to the length lengthening of information transfer channel, so the risk that garble and broken string etc. occur rises.Therefore, will realize as present embodiment that preferably all required structure important documents of ETS function all concentrate on lift car 20.
And the safe condition shown in the second safety governor 2 is output in the first maintenance device 17 that is connected with the second safety governor 2, and the operating state shown in safety governor 1 is output in the second maintenance device 18.
According to above embodiment, for the holding function of the safety device group 11 (safety switch) of being controlled by apparatus for controlling elevator and the second safety governor 2 and the ETS function of being controlled by safety governor 1, can adopting respectively separately independently, microprocessor comes construction system, so can to verifying respectively operation with security-related various functions, can improve the reliability of secure context.In addition, can also for security-related various functions, safety governor being arranged on suitable place, the speed of carrying out the safety governor 1 of ETS function can be arranged to the speed higher than the second safety governor 2.Thus, can get rid of respectively response between each equipment according to the needs of various security functions and delay delaying and the impact of blackout etc. with communicating by letter, can improve controller performance and reliability.
Fig. 7 represents another other embodiments, be provided with in the present embodiment drg braking instruction and supply disconnecton instruction etc. is transferred to the transfer unit 20 of the second safety governor 2 from safety governor 1, and only be provided with maintenance device 21 in the second safety governor 2.
In the situation that shown in Figure 5 directly braking maneuver and supply disconnecton being controlled by safety governor 1, need between safety governor 1 and drg and between safety governor 1 and vital circuit, distribution be set, but by adopting the structure of present embodiment, only need between safety governor 1 and the second safety governor 2, distribution be set gets final product, thus, can save distribution reducing costs, and have the effect that reduces failure risk.
In addition, in occasion shown in Figure 5, due to fully independent between safety governor 1 and the second safety governor 2, so when the electrodynamic type emergency braking apparatus has carried out action, can not grasp in the second safety governor 2 sides the action situation of electrodynamic type emergency braking apparatus.Therefore, be provided with the maintenance device in each safety governor.On the other hand, when adopting structure shown in Figure 7, owing to can synthetically grasp the action situation of safety device in the second safety governor 2, so the situation that a maintenance device 21 just can be grasped all and security-related function only need to be set.
According to above embodiment, transmit the instruction delivery unit of braking maneuver instruction and supply disconnecton instruction by arranging from safety governor 1 to the second safety governor 2, can save the interior distribution of hoist trunk and adaptor union etc., and can reduce costs and failure risk, thereby can make contributions for improving system reliability, simultaneously, due to only by being arranged on the maintenance device in the second safety governor 2, just can grasp the state of the safety device in hoist trunk, so, can improve maintenance personnel's operating efficiency.
Fig. 8 represents another other embodiments, is provided with in the present embodiment for send the transmitting element 30 of information from the second safety governor 2 to apparatus for controlling elevator.This transmitting element 30 connects or wire transmission by bus, communicates with the second safety governor 2 and apparatus for controlling elevator.In addition, the second safety governor 2 is used for implementing the instruction of braking maneuver and supply disconnecton action from safety governor 1 input.Owing between the second safety governor 2 and apparatus for controlling elevator 3, connection being arranged, so also can use the signal of safety device group 11 in elevator cage operation is controlled in apparatus for controlling elevator 3 sides.For example, the switch that detects the elevator hall door switching is a safety device in safety device group 11, but when carrying out the elevator operation, identify the open and-shut mode of elevator doors and lift car is moved in apparatus for controlling elevator 3 sides by this switch, so, this switch not only can be used for security function, but also can be used in the control function.
When also the signal of safety device being input to apparatus for controlling elevator 3, for example, as shown in Figure 9, when the signal of safety device is input to the second safety governor 2 and apparatus for controlling elevator 3 simultaneously, need to be provided for respectively to be input to the distribution of the second safety governor 2 and apparatus for controlling elevator 3 and adaptor union etc., thereby cause amount of parts to increase, reliability reduces.
, by the 3 necessary signals of transmission from the second safety governor 2 to apparatus for controlling elevator, can save distribution and parts, reduce failure risk, improve the reliability of system.
And, apparatus for controlling elevator 3 is diagnosed abnormal with prior discovery safety device and other lift facilities according to the signal that is sent by the combination of safety device, thus, can make elevator notify fault and elevator is stopped by apparatus for controlling elevator before stopping at safety governor.
Diagnosis is carried out in normal operation procedure or in diagnosis operational mode etc. usually.In the diagnosis of being undertaken by elevator device, according to the degree of fault, judge that elevator is moved to be stopped after nearest floor or make elevator proceed normal operation etc.Trouble location by the notice maintenance such as long-distance service care device center to use as maintenance information.
According to above embodiment, by being provided for the transmitting element 30 of the 3 transmission information from the second safety governor 2 to apparatus for controlling elevator, can save distribution and parts, improve the reliability of system.In addition, by at apparatus for controlling elevator 3, diagnosis function being set, can making elevator the abnormal of equipment be detected before stopping at the second safety governor 2, and it is used as maintenance information.
Claims (8)
1. the elevator of a safety device height electronization, it is used for preventing that the apparatus for controlling elevator that the operation of lift car is controlled from carrying out abnormal operation, the elevator of described safety device height electronization is characterised in that to have:
Vital circuit, described vital circuit can arrange a plurality of input terminals, is used for controlling power supply supply and supply disconnecton to described apparatus for controlling elevator;
Drg, described drg is controlled by described apparatus for controlling elevator, is used for described lift car is braked;
Position transduser, described position transduser are arranged on described lift car, for detection of the position of described lift car;
Safety governor, the signal of this position transduser of input in described safety governor; With
Speed sensor, described speed sensor are arranged on described lift car, the speed of described lift car be input in described safety governor,
Described vital circuit and described drg can be controlled according to each described security function by the safety governor that can realize multiple security function,
Described safety governor to described vital circuit and the instruction of described drg output action, is controlled described drg according to the position of described lift car and the speed of described lift car according to the signal of described position transduser.
2. the elevator of safety device height electronization as claimed in claim 1 is characterized in that:
Described multiple security function comprises for the function that is arranged on the safety device group in hoist trunk and the function of carrying out end floor forced deceleration according to position and the velocity information of described lift car.
3. the elevator of safety device height electronization as claimed in claim 1 is characterized in that:
Position transduser for detection of described elevator car position is arranged on described lift car with the described safety governor of reception from the signal of this position transduser.
4. the elevator of safety device height electronization as claimed in claim 1 is characterized in that:
The signal that is arranged on the safety device group of hoist trunk is imported in described safety governor,
Described safety governor is according to the signal of described safety device group, to described vital circuit and the instruction of described drg output action.
5. the elevator of safety device height electronization as claimed in claim 1 is characterized in that:
Have the emergency braking apparatus that is arranged on described lift car, this emergency braking apparatus is controlled by described safety governor.
6. the elevator of safety device height electronization as claimed in claim 1 is characterized in that:
Described safety governor by corresponding with described security function and independently microprocessor consist of.
7. the elevator of safety device height electronization as claimed in claim 1 is characterized in that:
Have the second safety governor,
The signal that is arranged on the safety device group of hoist trunk is imported in described the second safety governor,
Described the second safety governor according to the signal of described safety device group to described vital circuit and the instruction of described drg output action.
8. the elevator of safety device height electronization as claimed in claim 1 is characterized in that:
Have the second safety governor,
The signal that is arranged on the safety device group of hoist trunk is imported in described the second safety governor,
Described safety governor is according to the signal of described position transduser, via described the second safety governor to described vital circuit and the instruction of described drg output action.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009281106A JP5222833B2 (en) | 2009-12-11 | 2009-12-11 | Electronic safety elevator |
| JP2009-281106 | 2009-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102092608A CN102092608A (en) | 2011-06-15 |
| CN102092608B true CN102092608B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010583263 Active CN102092608B (en) | 2009-12-11 | 2010-12-06 | Elevator with high electronization safety device |
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| Country | Link |
|---|---|
| JP (1) | JP5222833B2 (en) |
| CN (1) | CN102092608B (en) |
| HK (1) | HK1153445A1 (en) |
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| CN104692206A (en) * | 2013-12-03 | 2015-06-10 | 株式会社日立制作所 | Elevator maintenance inspection brake controller |
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| JP6317077B2 (en) * | 2013-07-05 | 2018-04-25 | 株式会社日立製作所 | Elevator safety system |
| WO2015085527A1 (en) * | 2013-12-12 | 2015-06-18 | Otis Elevator Company | Safety system for use in a drive system |
| CN106232514B (en) * | 2013-12-17 | 2018-07-17 | 株式会社日立制作所 | The control device and its control method of elevator |
| CN104444689B (en) * | 2014-11-18 | 2016-08-17 | 苏州通润驱动设备股份有限公司 | A kind of traction sheave safety guard and the method for urgent stop elevator car thereof |
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| CN111788139B (en) * | 2018-02-26 | 2021-09-14 | 三菱电机株式会社 | Elevator safety control device |
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| CN109650212B (en) * | 2019-01-21 | 2021-06-08 | 日立电梯（中国）有限公司 | Safety protection device, elevator safety control method and elevator |
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| JP7328866B2 (en) * | 2019-10-29 | 2023-08-17 | 株式会社日立製作所 | multi car elevator |
| JP7355231B2 (en) | 2020-04-27 | 2023-10-03 | 三菱電機株式会社 | elevator equipment |
| CN113942904A (en) * | 2020-07-16 | 2022-01-18 | 苏州汇川技术有限公司 | Elevator safety control method, system, equipment and computer readable storage medium |
| CN112193950B (en) * | 2020-09-01 | 2022-04-29 | 日立楼宇技术（广州）有限公司 | Method and device for configuring elevator control system, elevator component and storage medium |
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| CN112408138B (en) * | 2020-12-07 | 2024-10-18 | 康力幸福加装电梯(苏州)有限公司 | Safety protection device of shallow pit elevator |
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- 2011-07-20 HK HK11107580.8A patent/HK1153445A1/en unknown
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692206A (en) * | 2013-12-03 | 2015-06-10 | 株式会社日立制作所 | Elevator maintenance inspection brake controller |
| CN104692206B (en) * | 2013-12-03 | 2017-11-03 | 株式会社日立制作所 | The maintenance overhaul arrester control device of elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1153445A1 (en) | 2012-03-30 |
| JP5222833B2 (en) | 2013-06-26 |
| JP2011121726A (en) | 2011-06-23 |
| CN102092608A (en) | 2011-06-15 |
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