CN102471020B - Control device for elevator - Google Patents
Control device for elevator Download PDFInfo
- Publication number
- CN102471020B CN102471020B CN200980160377.0A CN200980160377A CN102471020B CN 102471020 B CN102471020 B CN 102471020B CN 200980160377 A CN200980160377 A CN 200980160377A CN 102471020 B CN102471020 B CN 102471020B
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- Prior art keywords
- door
- elevator
- car
- control setup
- brake switch
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Classifications
-
- 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
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
Disclosed is an elevator device provided with two or more sets of electromagnetic brakes, the elevator device having improved convenience and preventing passengers from being trapped therein as much as possible. Specifically, an elevator device is provided with a plurality of electromagnetic brakes, a plurality of brake switches which individually detect an open/closed state, a door openable zone detector, and a control unit which controls the release/application of the plurality of electromagnetic brakes by outputting/interrupting a brake release command and controls the opening/closing of a door by outputting a door opening/closing command on the basis of the result of the detection by the door openable zone detector, wherein when not being able to detect that at least one or more brake switches among the plurality of brake switches are brought into a closed state but being able to detect that a predetermined number or more of brake switches thereamong are brought into the closed state although a brake application command is outputted after the arrival at the floor, the control unit outputs the door closing command after outputting the door opening command for a predetermined period of time, and thereafter stops the service of the elevator.
Description
Technical field
The present invention relates to the control setup of elevator, the in the situation that of abnormal for producing at drg, also can carry out the running that convenience is good.
Background technology
The control setup of existing the first elevator has not operation detection circuit, work bad testing circuit and running circuit of drg, drg, detecting that drg moves bad in the situation that, this control setup makes car move (for example,, with reference to patent documentation 1) according to load.Specifically, drg carries out work according to braking instruction, retrains the action of car drive motor.Drg not operation detection circuit detects the out-of-run situation of drg.But bad testing circuit detects sending the braking instruction drg state that operation detection circuit does not carry out work (being that drg is not worked) although work.Running circuit, according to the detection signal of the bad testing circuit of this work, makes car move to the bottom in the time that load is heavier, makes car move to top layer in the time that load is lighter.
In addition, as the control setup of existing the second elevator, exist in the case of detecting and produced the control setup (for example,, with reference to patent documentation 2) that the skidding of magnet stopper, the running of elevator is stopped.Specifically, in the time that car rests against floor, from control setup output braking instruction, contact disconnects thereupon, and restraining coil is by demagnetization, its result, and magnet stopper starts braking maneuver.In the time detecting that by brake switch permanent-magnet synchronous electric motor is braked by magnet stopper, power-converting device cuts off the electric power that offers electrical motor.And, the impulse singla in the schedule time from the pulse generator being connected with electrical motor is counted, exceed predefined skidding in this count value and detect predetermined value in the situation that, detect as having produced skidding of magnet stopper.And, detecting after magnet stopper abnormal, stop the running of elevator.
In addition, as the control setup of existing the third elevator, exist and in the situation that slip/stick movement being detected, prevent passenger to bring dangerous control setup (for example,, with reference to patent documentation 3).Specifically, the detecting unit that skids is set in control unit, in the time that electric power instruction is cut off and has exported braking instruction, this detecting unit that skids detects the slip/stick movement of car according to gait of march.Thus, while stopping in the case of car stops layer, detect slip/stick movement according to the exceptional value of gait of march, can prevent passenger to bring danger.
Formerly technical literature
Patent documentation
Patent documentation 1: No. 1316612 communique of Japanese Patent
Patent documentation 2: TOHKEMY 2005-170551 communique
Patent documentation 3: No. 2635257 communique of Japanese Patent
Summary of the invention
The problem that invention will solve
But there is following problem in prior art.
In the control setup of existing the first elevator of patent documentation 1, show following such example, utilize drg not operation detection circuit detect the out-of-run situation of drg, detect abnormal after, after instruction is closed the door in output, advance to end floor and make elevator fail to start.That is, the control setup of this existing the first elevator is in the situation that detecting that drg is abnormal, and then close the door and make elevator advance to predetermined floor makes the processing of elevator fail to start, thereby has the stranded possibility of passenger there is passenger in car time.
But, having in the lift appliance of at least two group magnet stoppers, exist a part of magnet stopper to occur when abnormal, also can only utilize a magnet stopper for normal work keep the situation that car is static even if think.So, in this case, preferably make under passenger, after elevator, to make elevator fail to start.
In addition, in the control setup of existing the second elevator of patent documentation 2, even if think in the case of having magnet stopper more than two, also exist the brake switch that the mode of operation of drg is detected or not the situation of arrester close.So, in this case, in the control setup of this existing the second elevator, also can cause passenger to be trapped in car and cause the poor problem of convenience.
In addition, in the control setup of existing the third elevator of patent documentation 3, detect skidding of drg with the signal of rotation detector.In this case, can detect reliably the forfeiture of braking torque.But, do not consider the operating state of the brake switch of the mode of operation of direct-detection drg.
The present invention proposes in order to address the above problem just, and the lift appliance that provides a kind of convenience good is provided its object, having in the lift appliance of magnet stopper more than two, can prevent as much as possible that passenger is trapped in car.
For the means of dealing with problems
The control setup of elevator of the present invention has: multiple magnet stoppers, and it is located at traction motor independently, and each magnet stopper has independently restraining coil and the actuating mechanism for static maintenance, multiple brake switches, it detects respectively multiple magnet stoppers open and-shut mode separately, the area detector that opens the door, its detection is equivalent to the region of opening the door of the opened and closed scope of car door, and control part, its output/cut off for switching and whether release order to the braking of multiple magnet stoppers restraining coil current flowing separately, thus multiple magnet stoppers are carried out to open and close controlling, and export the instruction of the opening the door/instruction of closing the door according to the testing result of the area detector that opens the door, carry out thus the open and close controlling of door, control part during instruction is closed the door in output in, although and produced to be detected it is to open the door to have cut off braking behind region and release order by the area detector that opens the door, but while failing the state in closure state to be detected at least more than one the brake switch in multiple brake switches, brake switch more than the predetermined quantity in multiple brake switches being detected is closure state, reach after the schedule time in the output instruction of opening the door, export the instruction of closing the door, then stop the service of elevator, in the case of failing to detect that the brake switch more than predetermined quantity in multiple brake switches is closure state, stop the service of elevator at once.
Invention effect
According to the control setup of elevator of the present invention, even fail to detect in closure state in the case of having produced at least more than one the brake switch in multiple brake switches, also can be judged to be to keep the magnet stopper of the number that car is static in the situation that carrying out work, the action of opening the door before stopping passenger services, can realize thus and in the lift appliance with magnet stopper more than two, prevent as much as possible that passenger is trapped in the control setup of the elevator that convenience in car is good.
Brief description of the drawings
Fig. 1 is the integral structure figure that represents the control setup of the elevator of embodiments of the present invention 1.
Fig. 2 is the diagram of circuit of the action of the control setup of the elevator for embodiments of the present invention 1 are described.
Fig. 3 is the integral structure figure that represents the control setup of the elevator of embodiments of the present invention 2.
Fig. 4 is the diagram of circuit of the action of the control setup of the elevator for embodiments of the present invention 2 are described.
Detailed description of the invention
The preferred implementation of the control setup of elevator of the present invention is described with accompanying drawing below.In addition, below for ease of explanation, as the example of multiple magnet stoppers independently, the control setup of the elevator when having two groups of magnet stoppers describes.
Embodiment 1
Fig. 1 is the integral structure figure that represents the control setup of the elevator of embodiments of the present invention 1.In Fig. 1, in the hoistway of elevator, dispose car 1, car 1 is controlled so as to as stopping at each floor 2.Dispose the gate control portion 3 of the switching of controlling car door (not shown) at car 1.And, dispose at car 1 area detector 4 that opens the door, this area detector 4 that opens the door detects the region of opening the door of the opened and closed scope that is equivalent to car door, in hoistway to dispose check-out console 5 with the opposed mode of area detector 4 of opening the door.
In machine room above hoistway, be provided with the towing machine with traction motor 6.Main rope 8, by the driving rope sheave 7 around being located on the axle of traction motor 6, is connecting respectively car 1 and counterweight 9 at the two ends of main rope 8.And, pulse generator 10 is installed on the axle of traction motor 6.And, be provided with respectively independently the 1st magnet stopper 11 and the 2nd magnet stopper 13 at traction motor 6.
The 1st magnet stopper 11 and the 2nd magnet stopper 13 have: brake shoe 11a, 13a, and it utilizes the power of spring (not shown) to brake traction motor 6; And restraining coil 11b, 13b, it attracts independently respectively brake shoe 11a, 13a and brake off when by excitation.And, be provided with the 1st brake switch 12 and the 2nd brake switch 14 of the action that detects independently respectively brake shoe 11a, 13a.
Restraining coil 11b, 13b are connected with direct supply 17 with 16a, 16b via normal opened contact 15a, the 15b of electromagnetic contactor (not shown).At this, release order under the state of Bs1, Bs2 having exported braking, electromagnetic contactor becomes excited state, thereby normal opened contact 15a, 15b and 16a, 16b closure, its result, restraining coil 11b, 13b become excited state, and drg becomes (OFF) state of not working.On the contrary, do not export braking release order Bs1, Bs2 (, be disconnected) state under, electromagnetic contactor becomes non-excited state, thereby normal opened contact 15a, 15b and 16a, 16b disconnection, its result, restraining coil 11b, 13b become non-excited state, and drg becomes work (ON) state.
The control setup 20 that comprises the brake control section of controlling respectively the 1st magnet stopper 11 and the 2nd magnet stopper 13 entirety is made up of microcomputer.This microcomputer has CPU 21, ROM 22, RAM 23, input port 24 and output port 25, and these unit interconnect by bus 26.
Input port 24 is connected with pulse generator 10, brake switch 12,14 and the area detector 4 that opens the door, and CPU 21 can detect the various states of elevator.More particularly, be transfused to input port 24 from the output pulse P of pulse generator 10, to detect the travel condition of car.And, input the 1st braking working signal Bd1 from the 1st brake switch 12 to input port 24, input the 2nd braking working signal Bd2 from the 2nd brake switch 14 to input port 24, to detect braking mode.In addition, input floor ground detection signal Zs from the area detector 4 that opens the door to input port 24, to detect car door whether in can open and-shut mode.
On the other hand, output port 25 is connected with electromagnetic contactor, gate control portion 3 and the power-converting device 27 with contact 15a, 15b, 16a, 16b.More particularly, in the time that drg is not worked, brake to electromagnetic contactor output the 1st Bs1 and the 2nd that releases order and brake the Bs that releases order, to carry out the work/not job control of drg.On the contrary, making drg when work, cut off release order Bs1 and the 2nd braking of the 1st braking and release order Bs and do not export these instructions to electromagnetic contactor.
And, export to gate control portion 3 close the door instruction Dcs and the instruction Dos that opens the door, to carry out the open and close controlling of door.In addition, export torque instruction Ts to power-converting device 27, to carry out the speed control of car.And power-converting device 27 is connected with traction motor 6.
A series of actions of the control setup of the elevator of embodiments of the present invention 1 is described below.First molar behavior is described.The control setup 20 that comprises brake control section generates torque instruction Ts, provides three-phase ac power Pm from power-converting device 27 to traction motor 6, and drives traction motor 6.In addition, control setup 20 is controlled and is made the rotative speed of traction motor 6 consistent with speed command signal, makes car 1 lifting running, this is omitted to detailed explanation.
Now, also release order Bs1, Bs2 of output braking, so contact 15a, 15b, 16a, 16b closure.Therefore, restraining coil 11b, 13b are by excitation, and brake shoe 11a, 13a discharge, and discharge traction motor 6.
Car 1 is advanced and is stopped layer in the floor 2 that has call like this, in the time that the area detector 4 that opens the door is relative with check-out console 5, generates floor detection signal Zs input control device 20 by the area detector 4 that opens the door.Thus, control setup 20 is judged to be car 1 and rests against the region of opening the door of destination floor, and cuts off the torque instruction Ts exporting to power-converting device 27, and cuts off to the braking of the 1st magnet stopper 11, the 2nd magnet stopper 13 release order Bs1, Bs2.Thus, contact 15a, 15b, 16a, 16b disconnect, and traction motor 6 is braked boots 11a, 13a braking.
Use flowchart text elevator normally to advance below, and stop the detailed action of layer in the time of floor 2.Fig. 2 is the diagram of circuit of the action of the control setup of the elevator for embodiments of the present invention 1 are described.
In step S1, stop layer after floor 2 at car 1, in step S2, control setup 20 cuts off braking and releases order Bs to apply braking.Its result, traction motor 6 is in braking mode as mentioned above.Then,, in step S3, control setup 20 determines whether that brake switch 12,14 moves and exported braking working signal Bd, judges whether magnet stopper 11,13 has become braking mode.
In the time being judged to be brake switch 12,14 and having carried out action, in step S4, control setup 20 cuts off torque instruction Ts, cuts off the supply from the three-phase ac power Pm of power-converting device 27.On the other hand, in step S3, in the time being judged to be brake switch 12,14 and not moving, in step S5, control setup 20 is waited for and after the schedule time, is entered step S4.
Then,, in step S6, control setup 20 determines whether that brake switch 12,14 all moves.And, all carried out action in the situation that being judged to be brake switch 12,14, control setup 20 is judged to be magnet stopper 11,13 and normally works, in step S7, if opened the door, area detector 4 has been exported floor detection signal Zs, exports the instruction Dos that opens the door and opens the door.
On the other hand, in step S6, in the case of be judged to be more than one brake switch in brake switch 12,14 do not move (, can not say the state all moving), control setup 20 determines whether that in step S8 the brake switch 12,14 of predetermined quantity moves.At this, predetermined quantity refers to the minimum number that is set as the brake switch that can produce following torque, under this minimum number, the torque producing can make magnet stopper keep being greater than the load of level of movement (110% load) of elevator overload detecting device, and at car 1 interior when non-loaded be greater than can keep car 1 torque, can keep the torque compared with heavy load.In present embodiment 1, be designed to can keep with a magnet stopper level of movement of overload detecting device, thereby predetermined quantity is now 1.
(the brake switch that is predetermined quantity in the result of determination of step S8 moves, in present embodiment 1, only have any one party in brake switch 12,14 to move), control setup 20 is judged to be at least to keep car static.And in step S9, if the area detector 4 that opens the door has been exported floor detection signal Zs, the control setup 20 output instruction Dos that opens the door opens the door, and then makes elevator fail to start in step S10.
In addition, be not have the brake switch of predetermined quantity moving (in the result of determination of step S8, in present embodiment 1, brake switch 12,14 does not move) in the situation that, control setup 20 is judged to be to keep car static, not via step S9, and in step S10, make elevator fail to start.
By so a series of processing, control setup 20 in the time that car 1 stops, exporting braking instruction (, cutting off braking releases order) after, even when being judged to be more than one brake switch and not moving, in the case of keeping the magnet stopper of the number that car is static to carry out work, elevator opens the door and makes elevator under passenger, then stops service.
On the other hand, do not move being judged to be more than one brake switch, and there is no to keep the magnet stopper of the number that car is static in the situation that of work, control setup 20 does not open the door elevator, and stops passenger services.Its result, can provide the control setup of the elevator that the convenience that prevents from being as far as possible trapped in car is good.
As mentioned above, according to embodiment 1, in the situation that more than one brake switch does not move, control setup can keep the magnet stopper of the number that car is static to carry out work in the case of being judged to be, the action of can opening the door before stopping passenger services.Its result, can prevent passenger to be trapped in car as much as possible, can realize the control setup of the elevator that convenience is good.
Embodiment 2
In present embodiment 2, be described as follows situation, on the architecture basics of the illustrated Fig. 1 of embodiment 1 above, also there is the scale device 28 that detects the load in car 1, dynamically judge the number that can keep the magnet stopper that car is static according to charge capacity Wg.
Fig. 3 is the integral structure figure that represents the control setup of the elevator of embodiments of the present invention 2.The lift appliance of present embodiment 2, on the basis of structure shown in Fig. 1 of embodiment 1 above, also has the scale device 28 that detects the load in car 1.Other structure is identical with Fig. 1 of embodiment 1 above, uses diagram of circuit to describe centered by the scale device 28 newly appending below.In addition, scale device 28 is connected with input port 24, and CPU 21 can read the charge capacity Wg being detected by scale device 28.
Fig. 4 is the diagram of circuit of the action of the control setup of the elevator for embodiments of the present invention 2 are described.Compared with the diagram of circuit of Fig. 2 of embodiment 1 above, in the diagram of circuit of Fig. 4 of present embodiment 2, newly append step S21～S23, and used step S24 step of replacing S8.Other step is to carry out the action identical with the step of Fig. 2.
When in the situation that certain floor has produced call, in step S21, control setup 20 is exported close the door instruction Dcs the action of closing the door, and when the load in scale device 28 obtains car 1 in step S22, in step S23, elevator is advanced towards destination floor.
Then, in step S1, car 1 stops layer after floor 2, and in step S2, control setup 20 cuts off braking and releases order Bs to apply braking.Its result, as mentioned above, traction motor 6 is in braking mode.Then, in step S3, control setup 20 determine whether brake switch 12,14 move and exported braking working signal Bd, whether magnet stopper 11,13 becomes braking mode.
In the time being judged to be brake switch 12,14 and having carried out action, in step S4, control setup 20 cuts off torque instruction Ts, cuts off the supply from the three-phase ac power Pm of power-converting device 27.On the other hand, in step S3, in the time being judged to be brake switch 12,14 and moving, in step S5, control setup 20 is waited for and after the schedule time, is entered step S4.
Then,, in step S6, control setup 20 determines whether that brake switch 12,14 all moves.And, all carried out action in the situation that being judged to be brake switch 12,14, control setup 20 is judged to be magnet stopper 11,13 and normally works, in step S7, if opened the door, area detector 4 has been exported floor detection signal Zs, exports the instruction Dos that opens the door and opens the door.
On the other hand, in step S6, in the case of be judged to be more than one brake switch in brake switch 12,14 do not move (, can not say the state all moving), control setup 20 determines whether that in step S24 the brake switch 12,14 of predetermined quantity moves.At this, predetermined quantity refers to and is set as producing with following both sides' torque phase than the minimum number that can keep compared with the brake switch of the torque of heavy load, and these both sides' torque refers to the torque of the load in the car 1 that can make magnet stopper remain on to obtain in step S22 above and in the interior torque that can keep car 1 when non-loaded of car 1.,, in present embodiment 2, dynamically determine predetermined quantity according to the load in the car 1 being measured to by scale device 28.
The brake switch that is predetermined quantity in the result of determination of step S24 moves, control setup 20 is judged to be at least to keep car static.So in step S9, if the area detector 4 that opens the door has been exported floor detection signal Zs, the control setup 20 output instruction Dos that opens the door opens the door, and then makes elevator fail to start in step S10.
In addition, be not have the brake switch of predetermined quantity moves in the result of determination of step S24, control setup 20 is judged to be to keep car static, not via step S9, and in step S10, makes elevator fail to start.
By so a series of processing, control setup 20 in the time that car 1 stops, exporting braking instruction (, cutting off braking releases order) after, even if being judged to be more than one brake switch brakes, also can be equipped with under passenger's current state and passenger under this two states of no-load condition after elevator,, minimal braking torque that car 1 is static, open the door and make elevator under passenger in the case of being judged to be to have guaranteed to keep, then stop service.
On the other hand, move and be equipped with under passenger's current state and passenger under this two states of no-load condition after elevator being judged to be more than one brake switch, do not have to keep the magnet stopper of the number that car is static to carry out in the situation of work, control setup 20 does not open the door elevator, and stops passenger services.Its result, can provide the control setup of the elevator that the convenience that prevents from being as far as possible trapped in car is good.
As mentioned above, according to embodiment 2, in the situation that more than one brake switch moves, control setup can keep the magnet stopper of the number that car is static to carry out work in the case of being judged to be according to car load, the action of can opening the door before stopping passenger services.Its result, can implement the suitable control corresponding to car load, more can prevent from passenger to be trapped in the possibility in car than embodiment 1 above, can realize the control setup of the elevator that convenience is good.
Claims (3)
1. a control setup for elevator, it has:
Multiple magnet stoppers, it is located at traction motor independently, and each magnet stopper has independently restraining coil and the actuating mechanism for static maintenance;
Multiple brake switches, it detects respectively described multiple magnet stopper open and-shut mode separately;
The area detector that opens the door, its detection is equivalent to the region of opening the door of the opened and closed scope of car door; And
Control part, its output/cut off for switching and whether release order to the braking of described multiple magnet stoppers restraining coil current flowing separately, thus described multiple magnet stoppers are carried out to open and close controlling, and export the instruction of the opening the door/instruction of closing the door according to the testing result of the described area detector that opens the door, carry out thus the open and close controlling of door
Described control part during instruction is closed the door in output in, although and produced and detected that by the described area detector that opens the door having cut off described braking behind the region of opening the door described in being releases order and control described multiple magnet stopper from opening to closure state, but while failing the arrester close abnormal state in closure state to be detected at least more than one the brake switch in described multiple brake switches, brake switch more than the predetermined quantity in described multiple brake switch being detected is closure state, opening the door described in output, instruction reached after the schedule time, the instruction of closing the door described in output, then stop the service of elevator, detect that in the case of failing the brake switch more than predetermined quantity in described multiple brake switch is closure state, stop the service of elevator at once.
2. the control setup of elevator according to claim 1, wherein,
The number that produces the needed MIN magnet stopper of following torque is made as described predetermined quantity by described control part, carry out the open and close controlling of described magnet stopper and the open and close controlling of described door, described torque refers to and can keep the load of the level of movement that is greater than elevator overload detecting device and the torque that can keep the car of no-load condition.
3. the control setup of elevator according to claim 1, wherein,
This control setup also has the scale device that detects the bearing capacity in lift car,
The number that produces the needed MIN magnet stopper of following torque is made as described predetermined quantity by described control part, carry out the open and close controlling of described magnet stopper and the open and close controlling of described door, described torque refers to and can keep the described bearing capacity being detected by described scale device and the torque that can keep the car of no-load condition.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2009/063034 WO2011010356A1 (en) | 2009-07-21 | 2009-07-21 | Control device for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102471020A CN102471020A (en) | 2012-05-23 |
| CN102471020B true CN102471020B (en) | 2014-10-29 |
Family
ID=43498844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980160377.0A Active CN102471020B (en) | 2009-07-21 | 2009-07-21 | Control device for elevator |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2457861B1 (en) |
| JP (1) | JP5265009B2 (en) |
| KR (1) | KR20120014003A (en) |
| CN (1) | CN102471020B (en) |
| WO (1) | WO2011010356A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170100143A1 (en) * | 2015-10-07 | 2017-04-13 | Stryker Corporation | Multiple barrel clot removal devices |
| JP6879970B2 (en) * | 2018-03-23 | 2021-06-02 | 株式会社日立ビルシステム | Elevator |
| US11415191B2 (en) * | 2019-10-04 | 2022-08-16 | Otis Elevator Company | System and method configured to identify conditions indicative of electromagnetic brake temperature |
| CN115402895A (en) * | 2021-05-28 | 2022-11-29 | 奥的斯电梯公司 | Band-type brake monitoring circuit system, elevator system and band-type brake monitoring method |
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| JP2005170551A (en) * | 2003-12-09 | 2005-06-30 | Mitsubishi Electric Corp | Elevator brake control device |
| JP2007169029A (en) * | 2005-12-26 | 2007-07-05 | Mitsubishi Electric Corp | Elevator control device |
| JP2008207898A (en) * | 2007-02-23 | 2008-09-11 | Mitsubishi Electric Corp | Control device for elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042151B2 (en) * | 1977-01-10 | 1985-09-20 | 三菱電機株式会社 | Elevator safety device |
| JP2004018235A (en) * | 2002-06-19 | 2004-01-22 | Mitsubishi Electric Corp | Controller for elevator |
| JP2005126183A (en) * | 2003-10-23 | 2005-05-19 | Mitsubishi Electric Corp | Brake control device for elevator |
| FI119877B (en) * | 2005-08-19 | 2009-04-30 | Kone Corp | Elevator security |
| KR100928118B1 (en) * | 2006-11-21 | 2009-11-24 | 미쓰비시덴키 가부시키가이샤 | Elevator counterweight |
-
2009
- 2009-07-21 EP EP09847541.1A patent/EP2457861B1/en active Active
- 2009-07-21 KR KR20117027930A patent/KR20120014003A/en not_active Application Discontinuation
- 2009-07-21 JP JP2011523498A patent/JP5265009B2/en active Active
- 2009-07-21 WO PCT/JP2009/063034 patent/WO2011010356A1/en active Application Filing
- 2009-07-21 CN CN200980160377.0A patent/CN102471020B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2635257B2 (en) * | 1991-12-10 | 1997-07-30 | 三菱電機株式会社 | Elevator control device |
| JP2005170551A (en) * | 2003-12-09 | 2005-06-30 | Mitsubishi Electric Corp | Elevator brake control device |
| JP2007169029A (en) * | 2005-12-26 | 2007-07-05 | Mitsubishi Electric Corp | Elevator control device |
| JP2008207898A (en) * | 2007-02-23 | 2008-09-11 | Mitsubishi Electric Corp | Control device for elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2457861A4 (en) | 2015-06-17 |
| EP2457861B1 (en) | 2016-08-17 |
| CN102471020A (en) | 2012-05-23 |
| WO2011010356A1 (en) | 2011-01-27 |
| JPWO2011010356A1 (en) | 2012-12-27 |
| KR20120014003A (en) | 2012-02-15 |
| EP2457861A1 (en) | 2012-05-30 |
| JP5265009B2 (en) | 2013-08-14 |
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