CN108529371B - Elevator maintenance Work support system - Google Patents
Elevator maintenance Work support system Download PDFInfo
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- CN108529371B CN108529371B CN201711386088.5A CN201711386088A CN108529371B CN 108529371 B CN108529371 B CN 108529371B CN 201711386088 A CN201711386088 A CN 201711386088A CN 108529371 B CN108529371 B CN 108529371B
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- Prior art keywords
- carriage
- brake
- confirmation
- protective device
- door open
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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
- B66B5/0043—Devices enhancing safety during maintenance
- B66B5/005—Safety of maintenance personnel
-
- 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
-
- 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
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
- B66B5/145—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads electrical
Abstract
Entrance test section, confirmation request portion, license portion and the brake command portion that elevator maintenance Work support system has the position detection part of the position of door open running protective device, detection carriage, detects the operating personnel for entering and leaving working space.Door open running protective device has the confirmation portion whether the driving power supply control portion of the power supply to traction machine that disconnects, the brake power supply control portion for disconnecting power supply to brake and confirmation driving power supply control portion were operating normally and saved the result of the confirmation with brake power supply control portion.Clamshell doors traveling protective device in confirmation request portion carries out the confirmation request for being confirmed whether regular event.License portion allows carriage to run from top to the operation of top uplink or carriage from lowermost layer to bottom downlink when receiving the response that content is regular event.The braking for carrying out carriage is requested to door open running protective device when carriage is located at prespecified upper limit position or more, or when carriage is located at prespecified lower position or less in brake command portion.
Description
Technical field
Embodiments of the present invention are related to elevator maintenance Work support system.
Background technique
In the past, when carrying out the upkeep operation of elevator, operating personnel makees on the pit of elevating road lower end and carriage etc.
Industry space carries out operation.In order to support these operating personnels, the technology of the operation of control elevator has been used.In the skill of control operation
In art, in order to ensure the safety of operating personnel, it is provided with various Security Countermeasures.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2012-51708 bulletin
Summary of the invention
The technical problems to be solved by the invention
But in order to further increase the safety of operating personnel, need to take that various elevator control units are utilized
Security Countermeasures.
On the other hand, it is provided with door open running protective device (UCMP) in elevator control system, i.e., is filled due to driving
Set or failure has occurred in controller and cause carriage the door of carriage and elevating road closing before begin to lifting when automatically
Prevent the device of carriage.
The present invention is made in view of above-mentioned technical problem, proposes that door open running protective device (UCMP) is utilized in one kind
Safer countermeasure.
Solution for solving technical problems
The elevator maintenance Work support system of embodiments of the present invention has: the carriage of elevator；Traction machine makes the sedan-chair
Compartment is gone up and down in elevating road；Brake brakes the traction machine；Door open running protective device, door open running protection
Device has: driving power supply control portion disconnects the power supply to the traction machine as the braking carried out to the elevator；Braking
Device power supply control portion disconnects the power supply to the brake as the braking carried out to the elevator；And confirmation portion, confirmation
Whether the driving power supply control portion is operating normally with brake power supply control portion, and saves the result of the confirmation；Position
Test section detects the position of the carriage；Into test section, detection enters and leaves the operating personnel of working space；Confirmation request portion leads to
The test section that enters is crossed to detect operating personnel in the working space and detect by the position detection part described
When carriage is located at defined position, the confirmation request for being confirmed whether regular event is carried out to the door open running protective device；Perhaps
Can portion, received as the response in response to the confirmation request from the door open running protective device based on described
Confirmation portion save confirmation result, content be operating normally response in the case where, allow the carriage from it is top to
The bottom downlink operation of the top uplink operation of the elevating road or the carriage from lowermost layer to the elevating road；And system
Dynamic instruction part is located in advance in the case where the carriage is located at prespecified upper limit position or more, or in the carriage
In defined lower position situation below, the request of Xiang Suoshu door open running protective device carries out the braking of the carriage.
Detailed description of the invention
Fig. 1 is the schematic structural diagram of the elevator in first embodiment.
Fig. 2 is the functional structure chart of the elevator maintenance Work support system in first embodiment.
Fig. 3 is the figure for showing an example of hardware configuration of the maintenance and support device in first embodiment.
Fig. 4 is the step of showing the control for brake of the carriage in the elevator maintenance Work support system of first embodiment
Flow chart.
Fig. 5 is the functional structure chart of the elevator maintenance Work support system in second embodiment.
Fig. 6 is the step of showing the control for brake of the carriage in the elevator maintenance Work support system of second embodiment
Flow chart.
Fig. 7 is the step of the control after the brake request shown in the elevator maintenance Work support system of third embodiment
Rapid flow chart.
Description of symbols
S: elevator maintenance Work support system 1: elevator
5: traction machine 5d: encoder
13: sensor 14: Machine Room
15a: car top enters test section 15b: car floor enters test section
16: brake 17: inspection operation portion
200,401: maintenance and support device 201: traffic direction determination unit
202,411: confirmation request portion 203,412: license portion
204: brake command portion 205: determination unit
206: communication processing section 207: control unit
210: elevator controlling portion 220: elevator position test section
250,450: door open running protective device 251: driving power supply control portion
252: brake power supply control portion 253,452: confirmation portion
254: communication processing section
Specific embodiment
(first embodiment)
Fig. 1 is the schematic structural diagram of the elevator 1 in first embodiment.The elevator maintenance Work support system of present embodiment
The S that unites is applied in elevator 1 as shown in Figure 1.The carriage 2 of elevator 1 can be moved to any mesh by going up and down in elevating road 7
Ground floor boarding place 6.It includes carriage 2, to pouring weight 3, main rope 4, traction machine 5, control cabinet 10, sensing that elevator 1, which is configured to,
Device 13, brake 16, inspection operation portion 17 etc..Elevator 1 be so-called bucket type elevator, by main rope 4 connect carriage 2 with it is right
Pouring weight 3.
In addition, elevating road 7 is that the lengthwise space being equipped in the building of elevator 1 is arranged in.The lower end of elevating road 7 has
Bottom 7a, upper end have top 7b.
The lower end of elevating road 7 is provided with pit 11.Pit 11 is stopped by the bottom 7a of elevating road 7 is arranged in carriage 2
Space between the floor location of the lowermost layer of boarding place 6 only.
Bottom 7a is the floor of elevating road 7 and the floor of pit 11.Top 7b is alternatively referred to as the ceiling of elevating road 7.
Carriage 2 can be gone up and down in elevating road 7.The upper surface of carriage 2 is provided with carriage top plate 2a, operating personnel M can stand
On carriage top plate 2a.Carriage top plate 2a is made of the siding etc. for constituting the car top of carriage 2.
The operating personnel M for carrying out the upkeep operation of elevator 1 carries out operation in pit 11 or on carriage top plate 2a.Making
In the case that industry personnel M enters the progress operation of pit 11, the space from bottom 7a to the carriage 2 of elevating road 7 is operating personnel M
Working space.In addition, at the station operating personnel M in the case where carrying out operation on carriage top plate 2a, from the top 7b of elevating road 7
Space to carriage 2 is the working space of operating personnel M.
Inspection operation portion 17 accepts the operation input for running carriage 2 from operating personnel M.Inspection operation portion
17a is arranged in pit 11, and inspection operation portion 17b is arranged in carriage top plate 2a.
The setting of boarding place 6 stops floor in the accessible each elevator of carriage 2.Boarding place is respectively arranged in each boarding place 6
Operation panel 9 etc..Boarding place operation panel 9 carries out so-called boarding place calling registration etc. according to the operation input of user.Boarding place
Operation panel 9 constitutes so-called boarding place indication box (HIB:Hall Indicator Box).
Traction machine 5 is for example with head pulley 5a, local derviation pulley 5b, the motor 5c (motor) for generating power.By electronic
The driving of machine 5c is rotated with the head pulley 5a of the motor 5c traction machine 5 connecting and is driven.Then, traction machine 5 utilizes head pulley
The frictional force generated between 5a and main rope 4 electrically draws main rope 4.Traction machine 5 makes carriage 2 in elevating road 7 as a result,
Lifting.
In addition, traction machine 5 has encoder (showing in Fig. 2), the revolving speed of the encoder detection motor 5c and
Direction of rotation.In addition, the revolving speed for the motor 5c that encoder will test out and direction of rotation are as output of pulse signal to control
Case 10 processed.
Main rope 4 is suspended on head pulley 5a and local derviation pulley 5b of traction machine 5 etc..One end of main rope 4 connects carriage
2, the other end is connected to pouring weight 3.
Traction machine 5, control cabinet 10, brake 16 etc. are set to Machine Room 14, which is arranged in the upper of elevating road 7
Portion.Machine Room 14 is spaced with elevating road 7 by the top 7b of elevating road 7.
Sensor 13 is that detection carriage 2 has been parked in the regulation arriving at location of each layer or has passed through the sensing of the arriving at location
Device.Sensor 13 is arranged in elevating road 7 at every layer.When sensor 13 detects carriage 2, detection letter is sent to control cabinet 10
Number.
Brake 16 is the device braked for the spinning movement to traction machine 5.Brake 16 is, for example, to be arranged
Drum brake or disk brake (brake that urges brake pad is braked by rubbing) near traction machine 5.In addition,
Brake 16 may be for example wire stopper (brake for clamping main rope 4 to brake), in addition, it's not limited to that.
The on-off action of brake 16 is carried out by control cabinet 10.
The brake 16 of present embodiment has in independent two brake gears of mechanical aspects.Even if as a result, one
In the case that failure has occurred in a brake gear, following door open running protective devices also can carry out braking control to carriage 2
System.
Control cabinet 10 and various sensors, detector, the motor 5c of traction machine 5, boarding place operation panel 9, sensor 13,
Each portion of the elevators 1 such as brake 16, inspection operation portion 17 is electrically connected, and is uniformly controlled the movement in each portion.Such as basis of control cabinet 10
The operation input that the operation input or operating personnel that user carries out boarding place operation panel 9 carry out inspection operation portion 17, control
The driving of traction machine 5 processed keeps carriage 2 mobile to specified destination floor corresponding with calling registration.
Moreover, control cabinet 10 is registered according to car call, boarding place calls registration, various sensors, come self-detector
The current moving direction (traffic direction) etc. of output, carriage 2, determines the arrival sequence of carriage 2, to make carriage 2 reasonable on one side
Move the various callings of an edge responses in ground.Then, 10 drive control traction machine 5 of control cabinet keeps carriage 2 mobile to destination floor.
The carriage 2 of elevator 1 moves in elevating road 7 along vertical direction oscilaltion as a result, and to arbitrary destination building
The boarding place 6 of layer is mobile.Then, elevator 1 detect carriage 2 reach the destination floor boarding place 6 and arrived at regulation support
Up to after position, the door 12 of the boarding place 6 of the floor is opened.It is able to enter in carriage 2 in the user that boarding place 6 waits as a result,
In addition, user in carriage 2 can under boarding place 6 elevator.
Next, being illustrated to the functional structure of the elevator maintenance Work support system S in present embodiment.Fig. 2 is
The functional structure chart of elevator maintenance Work support system S in present embodiment.
As shown in Fig. 2, the elevator maintenance Work support system S of present embodiment has control cabinet 10, carriage 2, traction machine
5, brake 16, sensor 13, encoder 5d, inspection operation portion 17, car top enters test section 15a, car floor enters test section
15b。
As shown in Fig. 2, the elevator maintenance Work support system S of present embodiment have detection operating personnel M car top into
Enter test section 15a and car floor enters test section 15b.Car top enters test section 15a and the carriage led to as working space is arranged in
The entrance of top plate 2a.Car floor enters test section 15b and the entrance for leading to the pit 11 as working space is arranged in.In addition,
In the case where the pit 11 of multiple elevators 1 is adjacent, car floor enters the bottom that test section 15b is additionally arranged at pit 11 Yu adjacent elevator
Between hole.
Control cabinet 10 test section 15a entered by car top and car floor enter test section 15b determine operating personnel M whether position
In carriage top plate 2a and pit 11, and carry out that result is corresponding controls with judgement.
In addition, entering test section 15a as car top, car floor enters test section 15b, elevator maintenance Work support system S
Can have by being imaged to the entrance for leading to carriage top plate 2a and pit 11 and detect the video camera of operating personnel M
Deng.
As shown in Fig. 2, control cabinet 10 has elevator controlling portion 210, elevator position test section 220, door open running protection dress
Set 250, maintenance and support device 200.
Elevator controlling portion 210 controls the movement of traction machine 5 and the on-off action of brake 16.210, elevator controlling portion
According to the order exported from maintenance and support device 200, the operation of elevator 1 is made to stop and carry out the selection etc. of operational mode.
The elevator 1 of present embodiment has two kinds of operational modes of normal operation mode and inspection travel mode.It operates normally
Mode is the mode that elevator controlling portion 210 runs carriage 2 with normal speed.Without Maintenance and Repair operation etc.
In the case of, elevator controlling portion 210 runs carriage 2 with the normal operation mode.In addition, inspection travel mode is elevator controlling portion
210 modes for making carriage 2 to be run than normal slow speed.In the present embodiment, by the fortune under inspection travel mode
Row is known as the downlink operation of the uplink operation of maintenance (operation), maintenance (operation).
Elevator position test section 220 according to the detection signal of the carriage 2 sended over from sensor 13 with from encoder 5d
The pulse signal of output detects the position of carriage 2.Specifically, elevator position test section 220 is transmitted across according to from sensor 13
Which floor the detection signal for the carriage 2 come, detection carriage 2 are located at.For example, elevator position test section 220 is able to detect carriage 2
Whether top above (top and top top) is located at.Further more, elevator position test section 220 is capable of detecting whether position
Below lowermost layer (below lowermost layer and lowermost layer).
Moreover, elevator position test section 220 calculates carriage 2 upper and lower according to the pulse signal exported from encoder 5d
Distance floor distance how far in a direction.
The position for the carriage 2 that elevator position test section 220 will test out is sent to maintenance and support device 200.
Elevator position test section 220 both can be in the signal etc. for receiving the transmission request from maintenance and support device 200
The position for sending carriage 2 later, can also send the position of carriage 2 during fixation.
Door open running protective device (UCMP) 250 in the case where failure has occurred in the driving device of elevator 1 or controller,
By with the independent structure detection door open running of operation control structure with elevator controlling portion 210, when carriage 2 carriage 2 with
And the door of whole entrances of elevating road 7 close before uplink or when downlink, automatically carriage 2 is braked.
In this way, door open running protective device (UCMP) 250 pass through it is only with the running control circuit with elevator controlling portion 210
Vertical structure carries out braking used to ensure safety in door open running.On the other hand, the situation other than door open running
Under, it is also useful based on braking independent structure, used to ensure safety.Therefore, in the present embodiment, by
Safety also is improved using door open running protective device (UCMP) 250 under situation other than door open running.In present embodiment
In, as an example for the method for ensuring safety, operation is carried out in carriage top plate 2a and pit 11 to operating personnel M is applied to
The case where example be illustrated.
Door open running protective device 250 has driving power supply control portion 251, brake power supply control portion 252, confirmation portion
253 and communication processing section 254.Door open running protective device 250 is passing through enabling test section detection carriage 2 (not shown), is multiplying
After whether the door at ladder is opened, when detecting that carriage 2 moves predetermined distance from boarding place, it is considered as and detects the enabling row of carriage 2
It sails, the control for brake of carriage 2 is carried out using driving power supply control portion 251 and brake power supply control portion 252.
Drive power supply control portion 251 as in the case where detecting 2 door open running of carriage to elevator 1 progress braking,
Disconnect the power supply to traction machine 5.Make the lifting emergent stopping of carriage 2 as a result,.
Brake power supply control portion 252 is in the case where detecting 2 door open running of carriage, as the system carried out to elevator 1
It is dynamic, disconnect the power supply to brake 16.Brake 16 is open structure during power supply.Therefore, brake power supply control portion
252 by disconnecting the power supply to brake 16, is able to carry out the control for being closed brake 16.
Confirmation portion 253 periodically carries out what whether driving power supply control portion 251 was operating normally with brake power supply control portion 252
Confirmation.Further, confirmation portion 253 saves the result of the confirmation periodically carried out.In addition, present embodiment although the description of periodically into
Row confirmation example, but determines that method be not limited thereto.
Communication processing section 254 is received and sent messages between maintenance and support device 200 at it.For example, communication processing section 254 from
In the case that maintenance and support device 200 receives the confirmation request whether confirmation door open running protective device 250 is operating normally, read
Whether the result for taking out the confirmation that confirmation portion 253 saves (drives power supply control portion 251 and brake power supply control portion 252 normal
Movement), and maintenance and support device 200 is sent in the response of confirmation request in response by the result of the confirmation.
Maintenance and support device 200 has traffic direction determination unit 201, confirmation request portion 202, license portion 203, brake command
Portion 204, determination unit 205, communication processing section 206 and control unit 207.
Communication processing section 206 carries out the transmitting-receiving of information at it between door open running protective device 250.
Traffic direction determination unit 201 determines represented by the control command that inputs from inspection operation portion 17, the operation of carriage 2
Direction.Traffic direction is some in up direction and down direction.In the order that control command is specified destination floor
In the case where, traffic direction determination unit 201 can determine carriage 2 by comparing the current location and destination floor of carriage 2
Traffic direction.The traffic direction determined is sent license portion 203 by traffic direction determination unit 201.
Confirmation request portion 202 enters the signal that test section 15a is inputted according to from car top, determines whether operating personnel M is located at
Carriage top plate 2a.Then, confirmation request portion 202 is in the case where being determined as that operating personnel M is located at carriage top plate 2a, according to coming from
The testing result of elevator position test section 220, determines whether carriage 2 is located at more than top (on top or top
Side).Then, confirmation request portion 202 is being determined as the case where carriage 2 is located at (top or top top) more than top
Under, clamshell doors traveling protective device 250 carries out the confirmation request for being confirmed whether regular event.The confirmation request unit of present embodiment
202 send confirmation request to door open running protective device 250 by communication processing section 206.
In addition, confirmation request portion 202 enters the signal that test section 15b is inputted according to from car floor, whether operating personnel M is determined
In pit 11.Then, confirmation request portion 202 is in the case where being determined as that operating personnel M is located in pit 11, according to coming from
The testing result of elevator position test section 220, determines whether carriage 2 is located at lowermost layer or less (under lowermost layer or lowermost layer
Side).Then, confirmation request portion 202 is being determined as the case where carriage 2 is located at lowermost layer or less (below lowermost layer or lowermost layer)
Under, clamshell doors traveling protective device 250 carries out the confirmation request for being confirmed whether regular event.
Communication processing section 206 receives the response in response to confirmation request from door open running protective device 250.Then, permit
Portion 203 carries out the processing based on the response in response to confirmation request.Door open running protective device 250 is come from present embodiment
The response in response to confirmation request, based on confirmation portion 253 save the confirmation periodically carried out result.That is, will drive
Whether dynamic power supply control portion 251 is operating normally with brake power supply control portion 252, in response in the response of confirmation request come into
Row receives.
License portion 203 in response in the response of confirmation request receive content for driving power supply control portion 251 with
And brake power supply control portion 252 be operating normally response in the case where, allow carriage 2 from it is top to top uplink run or
Person's carriage 2 is run from lowermost layer to bottom downlink.
For example, and traffic direction is sentenced being determined as that operating personnel M is located at carriage top plate 2a and carriage 2 and is located at top
Determine in the case that portion 201 is determined as up direction, license portion 203 allows to export to inspection elevator controlling portion 210 from control unit 207
The control command for the up direction operation repaired.
In addition, being determined as that operating personnel M is located at pit 11 and carriage 2 is located at lowermost layer, and traffic direction determination unit
In the case that 201 are determined as down direction, license portion 203, which allows to export to maintenance elevator controlling portion 210 from control unit 207, to be used
Down direction operation control command.
Control unit 207 exports elevator controlling portion 210 and orders.For example, the feelings that control unit 207 is permitted in the portion that is licensed 203
Under condition, the control command of the maintenance of the direction operation determined to traffic direction determination unit 201 is exported.
The position for the carriage 2 that determination unit 205 is detected according to elevator position test section 220, determines whether carriage 2 is located at most
It is more than high level to the prespecified upper limit position between the 7b of top.Upper limit position is to make between carriage top plate 2a and top 7b
For the position set for ensuring the benchmark for hiding space of operating personnel M.
Further, the position for the carriage 2 that determination unit 205 is detected according to elevator position test section 220 determines that carriage 2 is
It is no to be located at lowermost layer to the prespecified lower position between the bottom 7a of pit 11 or less.Lower position is in carriage 2
As the position set for ensuring the benchmark for hiding space of operating personnel M between bottom surface and bottom 7a.
Order of 204 output phase of brake command portion for the request braking of door open running protective device 250.For example, braking
Instruction part 204 is in the case where being determined as that carriage 2 is located at upper limit position or more by determination unit 205 or is determined as that carriage 2 is located at
In the situation below of lower position, the order that request carries out the braking of carriage 2 is exported to door open running protective device 250.
Then, the braking of request progress carriage 2 is received in the communication processing section 254 of door open running protective device 250
In the case where order, driving power supply control portion 251 disconnects the power supply to traction machine 5, and brake power supply control portion 252 disconnects
Power supply to brake 16.Thereby, it is possible to make 2 emergent stopping of carriage.
Next, being illustrated to the hardware configuration of the maintenance and support device 200 in present embodiment.Fig. 3 is to show this
The figure of an example of the hardware configuration of the maintenance and support device 200 in embodiment.As shown in figure 3, maintenance and support device 200 has
CPU31 (central operation device), input unit 32, communication unit 33 and storage unit 34, these devices are connected with each other by bus 35.
CPU31 is inputted according to from each device such as input unit 32, communication unit 33, storage unit 34 connected by bus 35 etc.
Data and program, carry out calculation process.In addition, CPU31 is by operation result and reflects that the control signal of the result exports
To each device such as communication unit 33, storage unit 34 etc. connected by bus 35.Specifically, CPU31 is by executing operation system
The upkeep operation support program of system program and elevator 1 executes various controls.
Input unit 32 is, for example, operation button or keyboard, mouse, touch screen etc., and but it is not limited to this.
Communication unit 33 is for passing through device that is wired or wirelessly being communicated with external device (ED) connection.It is logical
Letter portion 33 is, for example, modem or router, hub, and but it is not limited to this.Maintenance and support device 200 passes through communication unit
33 are communicated with external device (ED).
In addition, door open running protective device 250 has hardware configuration same as maintenance and support device 200, omit the description.
Next, being said to the control for brake of the carriage 2 in the elevator maintenance Work support system S of present embodiment
It is bright.Fig. 4 is flow chart the step of showing the above-mentioned control in the elevator maintenance Work support system S of present embodiment.
First, it is determined that car top enters whether test section 15a in carriage top plate 2a detects operating personnel's M (step
S301)。
Be determined as car top enter test section 15a carriage top plate 2a (i.e. top 7b and carriage 2 between working space)
In the case where detecting operating personnel M (the judgement result of step S301 is "Yes"), traffic direction determination unit 201 determines whether
The uplink operation operation (step S302) of maintenance has been accepted from inspection operation portion 17.The case where having accepted uplink operation operation
Under (the judgement result of step S302 is "Yes"), confirmation request portion 202 determines whether carriage 2 is located at the top above (step
S303).In the case where being determined as that carriage 2 is located at more than top (the judgement result of step S303 is "Yes"), confirmation request
Portion 202 sends confirmation request (step S304) to door open running protective device 250 by communication processing section 206.
Then, license portion 203 received according to communication processing section 206 from door open running protective device 250, in response to true
Recognize the response of request, determines whether the braking function of door open running protective device 250 is normal (step S305).
In the case where license portion 203 is determined as the normal situation of braking function (the judgement result of step S305 is "Yes"), allow
The uplink of the maintenance of control unit 207 runs (step S307).
On the other hand, in the case where license portion 203 is determined as the abnormal situation of braking function, (the judgement result of step S305 is
"No"), forbid the uplink of the maintenance of control unit 207 to run (step S306).
Further, determination unit 205 determines whether the distance between carriage top plate 2a and top 7b are less than predetermined distance (carriage
Whether 2 be located at upper limit position or more) (step S308).Determination unit 205 be determined as not less than (being equal to or more than) regulation away from
From in the case where (the judgement result of step S308 is "No"), handled from step S301 again.
On the other hand, in the case where determination unit 205 is judged to being less than predetermined distance, (the judgement result of step S308 is
"Yes"), brake command portion 204 sends brake request (step to door open running protective device 250 by communication processing section 206
S317).The control for brake based on door open running protective device 250 is carried out as a result,.And then it is secondary from step S301
Reason.
It is determined as not in addition, entering test section 15a in car top in the case where carriage top plate 2a detects operating personnel M
(the judgement result of step S301 is "No") is judged to not accepting maintenance from inspection operation portion 17 in traffic direction determination unit 201
(the judgement result of step S302 is "No") and confirmation request portion 202 are determined as sedan-chair in the case where uplink operation operation
In the case that compartment 2 is not located at more than top (the judgement result of step S303 is "No"), car floor, which enters test section 15b judgement, is
It is no to detect operating personnel M (step S309) in pit 11 (i.e. working space between bottom 7a and carriage 2).
Enter (step S309 in the case that test section 15b is judged to detecting operating personnel M in pit 11 in car floor
Judgement result be "Yes"), traffic direction determination unit 201 determine whether to have accepted from inspection operation portion 17 maintenance downlink fortune
Row operation (step S310).In the case where having accepted downlink operation operation (the judgement result of step S310 is "Yes"), confirmation
Request unit 202 determines whether carriage 2 is located at lowermost layer or less (step S311).It is being determined as that it is below that carriage 2 is located at lowermost layer
In the case of (the judgement result of step S311 is "Yes"), confirmation request portion 202 by communication processing section 206 to door open running protect
Device 250 sends confirmation request (step S312).
Then, license portion 203 received according to communication processing section 206 from door open running protective device 250, in response to true
Recognize the response of request, determines whether the braking function of door open running protective device 250 is normal (step S313).
In the case where license portion 203 is determined as the normal situation of braking function (the judgement result of step S313 is "Yes"), allow
The downlink of the maintenance of control unit 207 runs (step S314).
On the other hand, in the case where license portion 203 is determined as the abnormal situation of braking function, (the judgement result of step S313 is
"No"), forbid the downlink of the maintenance of control unit 207 to run (step S315).
Further, determination unit 205 determines whether the distance between bottom surface and bottom 7a of carriage 2 are less than predetermined distance (sedan-chair
Whether compartment 2 is located at lower position or less) (step S316).It is judged to providing not less than (being equal to or more than) in determination unit 205
In the case where distance (the judgement result of step S316 is "No"), handled from step S301 again.
On the other hand, in the case where determination unit 205 is judged to being less than predetermined distance, (the judgement result of step S316 is
"Yes"), brake command portion 204 sends brake request (step to door open running protective device 250 by communication processing section 206
S317).The control for brake based on door open running protective device 250 is carried out as a result,.And then it is secondary from step S301
Reason.
In addition, being judged to not accepting the downlink operation behaviour of maintenance from inspection operation portion 17 in traffic direction determination unit 201
(the judgement result of step S310 is "No") and confirmation request portion 202 are determined as that carriage 2 is not located at lowermost layer in the case where work
In situation below (the judgement result of step S311 is "No"), handled from step S301 again.
In addition, entering (step in the case that test section 15a is judged to not detecting operating personnel M in pit 11 in car top
The judgement result of rapid S309 is "No"), control cabinet 10 makes carriage 2 be operated normally (step S318).And then it is secondary from step
S301 rises and is handled.
In the present embodiment, by carrying out the control for brake of carriage 2 according to above-mentioned processing step, it can be improved safety
Property.
In the present embodiment, sedan-chair is carried out by using the door open running protective device 250 independently of elevator controlling portion 210
The braking in compartment 2, even if also can be realized the braking of carriage 2, therefore in the case where failure has occurred in elevator controlling portion 210 etc.
It can be improved safety.
In the present embodiment, although in the case where carriage 2 is located at upper limit position or more and in the case where carriage 2 is located at
The example that control for brake is carried out in extreme position situation below is illustrated, but is not limited to be located at upper limit in carriage 2
Set it is above in the case where and in the case where carriage 2 is located at lower position situation below carry out control for brake, can also be only in carriage 2
Control for brake is carried out in the case where more than upper limit position, or only in the case where carriage 2 is located at lower position situation below into
Row control for brake.
(second embodiment)
In the first embodiment, illustrate as using door open running protective device 250 to the braking that elevator 1 carries out and
It disconnects the power supply to traction machine 5 and disconnects the example of the power supply to brake 16.But door open running protective device 250 into
Capable processing is not limited thereto.Therefore, in this second embodiment, clamshell doors traveling protective device confirmation brake 16 is dynamic
As the case where be illustrated.In addition, assigning identical appended drawing reference to structure same as the first embodiment and omitting the description.
Fig. 5 is the functional structure chart of the elevator maintenance Work support system S in second embodiment.Implement relative to first
The door open running protective device 250 of mode, door open running protective device 450 are the knot for being added to brake action confirmation portion 451
Structure.
Normally whether opening and closing controls 451 pairs of brake action confirmation portion confirmation brake 16.
Other than the processing in the confirmation portion 253 of first embodiment, also control brake confirming operation portion, confirmation portion 452
451, the confirmation whether brake 16 is normally opened and closed periodically is carried out, and save the result of the confirmation.
Compared with the maintenance and support device 200 of first embodiment, maintenance and support device 401 has and confirmation request portion
202, the different confirmation request unit 411 of the processing in license portion 203, license portion 412.
Other than the processing of the confirmation request unit 202 of first embodiment, confirmation request portion 411 is also protected to door open running
Whether normally protection unit 450 sends the confirmation request including the movement of confirmation brake 16 opening and closing.
License portion 412 is receiving content in the response of confirmation request in response as regular event and brake
16 movement is positive in the case where the normally opened response (confirmation result) closed, and carriage 2 is allowed to run from top to top 7b uplink
Or carriage 2 is run from lowermost layer to bottom 7a downlink.
Next, being said to the control for brake of the carriage 2 in the elevator maintenance Work support system S of present embodiment
It is bright.Fig. 6 is flow chart the step of showing the above-mentioned control in the elevator maintenance Work support system S of present embodiment.
Firstly, from whether in carriage top plate 2a the judgement of operating personnel M is detected to determining door open running protective device
Processing until whether 450 braking function is normal, (step identical as the step S301 of first embodiment to step S305
S501 to step S505).
Later, license portion 412 received according to communication processing section 206 from door open running protective device 450, in response to true
Recognize the response of request, determines whether brake action is normal (step S506).In the present embodiment, it is asked in response in confirmation
The response asked includes the confirmation result whether brake action confirmation portion 451 is normally opened and closed brake 16.License portion as a result,
412 can determine whether brake action is normal.
In the case where license portion 412 is determined as the normal situation of brake action (the judgement result of step S506 is "Yes"), permit
Perhaps the uplink of the maintenance of control unit 207 runs (step S507).
On the other hand, (the judgement result of step S506 in the case where license portion 412 is determined as the abnormal situation of brake action
For "No"), forbid the uplink of the maintenance of control unit 207 to run (step S508).
Processing step S509, step S519 later is identical as first embodiment (step S308, step S317).
It is determined as not in addition, entering test section 15a in car top in the case where carriage top plate 2a detects operating personnel M
(the judgement result of step S501 is "No"), from whether detecting in pit 11 judgement of operating personnel M to determining to open
Processing until whether the braking function of door traveling protective device 450 is normal, with the step S309 of first embodiment to step
Identical (the step S510 to step S514) of S313.
Later, license portion 412 received according to communication processing section 206 from door open running protective device 450, in response to true
Recognize the response of request, determines whether brake action is normal (step S515).
In the case where license portion 412 is determined as the normal situation of brake action (the judgement result of step S515 is "Yes"), permit
Perhaps the downlink of the maintenance of control unit 207 runs (step S516).
On the other hand, (the judgement result of step S515 in the case where license portion 412 is determined as the abnormal situation of brake action
For "No"), forbid the downlink of the maintenance of control unit 207 to run (step S517).
Processing step S518, step S519 later is identical as first embodiment (step S316, step S317).
In addition, being determined as in the case where not detecting operating personnel M in pit 11 that (the judgement result of step S510 is
"No") processing, it is identical (step S520) as the step S318 of first embodiment.
In the present embodiment, other than the effect of first embodiment, by whether normal in confirmation brake 16
The uplink operation or downlink operation for allowing maintenance after movement again, can be improved safety.
(third embodiment)
In the above-described embodiment, illustrate that clamshell doors traveling protective device entered again by car top after brake request
Test section 15a is made whether to detect the example of the judgement of operating personnel M in carriage top plate 2a.But as long as in clamshell doors
Traveling protective device carried out by inspection operation portion 17 for ensuring safe inspection operation after brake request, can also be by
Uplink operation or downlink operation are carried out according to the inspection operation.Therefore, in the third embodiment, to after control for brake by
The case where managing the operation of maintenance is illustrated.
The elevator maintenance Work support system S of present embodiment has and first embodiment or second embodiment phase
Same structure.
Next, being carried out to the control after the brake request in the elevator maintenance Work support system S of present embodiment
Explanation.Fig. 7 is flow chart the step of showing the above-mentioned control in the elevator maintenance Work support system S of present embodiment.?
In flow chart shown in Fig. 7, it is assumed that processing until the step S317 of Fig. 4 of first embodiment or until second real
Processing until applying the step S519 of Fig. 6 of mode is the processing carried out.
It is sent as a result, brake command portion 204 travels protective device 250,450 by 206 clamshell doors of communication processing section
Brake request (step S701).
Later, determination unit 205 determines whether top the distance between 7b and carriage top plate 2a are less than predetermined distance (carriage 2
Whether upper limit position or more is located at) (step S702).
In the case where determination unit 205 is judged to being less than predetermined distance from top 7b, (the judgement result of step S702 is
"Yes"), traffic direction determination unit 201 determines whether to have accepted the operation (step of the downlink operation of maintenance from inspection operation portion 17
Rapid S703).In the case where being judged to not accepting (the judgement result of step S703 is "No"), carried out again from step S703
Processing.
On the other hand, it is judged to having accepted the downlink fortune of maintenance from inspection operation portion 17 in traffic direction determination unit 201
In the case where capable operation (the judgement result of step S703 is "Yes"), brake command portion 204 is to door open running protective device
250, (step S704) is requested in 450 releasings for sending braking.Later, license portion 203,412 allows the maintenance of control unit 207
Downlink runs (step S705).
Later, determination unit 205 determines whether top the distance between 7b and carriage top plate 2a are greater than predetermined distance (carriage 2
Whether upper limit position or less is located at) (step S706).(the judgement of step S706 in the case where being determined as no more than predetermined distance
As a result it is "No"), license portion 203,412 allows the downlink of the maintenance of control unit 207 to run, and continues downlink operation (step
Rapid S705).
On the other hand, (the judgement of step S706 in the case where determination unit 205 is judged to being greater than predetermined distance from top 7b
As a result it is "Yes"), it ends processing.As a result, identically as first embodiment and second embodiment, enter test section from car top
Whether 15a starts to handle in the judgement that carriage top plate 2a detects operating personnel M.
In addition, in step S702, (the step in the case where determination unit 205 is judged to being greater than predetermined distance from top 7b
The judgement result of S702 is "No"), determination unit 205 further determines whether the bottom surface of carriage 2 and the distance between bottom 7a are small
In predetermined distance (whether carriage 2 is located at lower position or less) (step S707).Determination unit 205 is being determined as not less than (i.e. etc.
In or be greater than) in the case where predetermined distance (the judgement result of step S707 is "No"), conventional control is carried out to carriage 2, and
It ends processing, in this description will be omitted.
On the other hand, in the case where determination unit 205 is judged to being less than predetermined distance, (the judgement result of step S707 is
"Yes"), traffic direction determination unit 201 determines whether to have accepted the operation (step of the uplink operation of maintenance from inspection operation portion 17
Rapid S708).In the case where being judged to not accepting (the judgement result of step S708 is "No"), carried out again from step S708
Processing.
On the other hand, it is judged to having accepted the uplink fortune of maintenance from inspection operation portion 17 in traffic direction determination unit 201
In the case where capable operation (the judgement result of step S708 is "Yes"), brake command portion 204 is to door open running protective device
250, (step S709) is requested in 450 releasings for sending braking.Later, license portion 203,412 allows the maintenance of control unit 207
Uplink runs (step S710).
Later, determination unit 205 determines whether the distance between bottom surface and bottom 7a of carriage 2 are greater than predetermined distance (carriage 2
Whether lower position or more is located at) (step S711).(the judgement of step S711 in the case where being determined as no more than predetermined distance
As a result it is "No"), license portion 203,412 allows the uplink of the maintenance of control unit 207 to run, and continues uplink operation (step
Rapid S710).
On the other hand, (the judgement of step S711 in the case where determination unit 205 is judged to being greater than predetermined distance from bottom 7a
As a result it is "Yes"), it ends processing.As a result, identically as first embodiment and second embodiment, enter test section from car top
Whether 15a starts to handle in the judgement that carriage top plate 2a detects operating personnel M.
In the present embodiment, operation operation used to ensure safety can be accepted, therefore is accordingly possible to ensure security and mentions
High convenience.
(variation)
In the above-described embodiment, to according to from top 7b whether be greater than predetermined distance (whether be located at upper limit position with
Under) or from whether bottom 7a is greater than predetermined distance (carriage 2 whether be located at lower position or more) carry out clamshell doors traveling protection dress
The example for setting the braking that request carries out carriage 2 is illustrated.But, it is not limited to the side shown in the above-described embodiment
Method.Therefore, as variation, the example that braking is requested according to the speed of carriage 2 is illustrated.
The position for the carriage 2 that determination unit 205 is detected according to elevator position test section 220, determines whether carriage 2 is located at most
Below low layer to the second prespecified lower position between the bottom 7a of pit 11.Second lower position is for example positioned at minimum
Layer is between the 7a of bottom, being the position above above-mentioned lower position.
Then, be determined as in determination unit 205 position of carriage 2 in the situation below of the second lower position, further root
Determine whether the speed of carriage 2 is more than or equal to fixing speed according to velocity sensor (not shown) etc..Then, sentence in determination unit 205
It is set to the speed of carriage 2 more than or equal in the case where fixing speed, 204 output phase of brake command portion is protected door open running and filled
Set the order of 250 request braking.As fixing speed, the defined speed for example as inspection travel mode.
Further more, whether the position for the carriage 2 that determination unit 205 is detected according to elevator position test section 220, determine carriage 2
More than top the second prespecified upper limit position between the 7b of top.Second upper limit position is for example positioned at top
To between the 7b of top, being the position below above-mentioned upper limit position.
Then, in the case where determination unit 205 is determined as that carriage 2 is located at the second upper limit position or more, further according to speed
Degree sensor (not shown) etc. determines whether the speed of carriage 2 is more than or equal to fixing speed.Then, it is determined as in determination unit 205
In the case that the speed of carriage 2 is more than or equal to fixing speed, 204 output phase of brake command portion is for door open running protective device
The order of 250 request braking.
In this variation, door open running protective device 250 has accounted for the control for brake of the speed of carriage 2, thus
Safety can be further increased.
In addition, in this variation, although to used different from upper limit position shown in above embodiment other
Position, i.e. the second upper limit position example be illustrated, but upper limit position and the second upper limit position be also possible to it is identical
Position.Similarly, although to having used under the other positions different from lower position shown in above embodiment, i.e. second
The example of extreme position is illustrated, but lower position and the second lower position are also possible to identical position.
In above embodiment and variation, as the structure for the control for brake for carrying out carriage 2, use as solely
The door open running protective device 250 standing on the independent structure in elevator controlling portion 210 and being arranged, thus, it is possible to improve safety.
For example, maintenance and support device 200 exports braking control when carrying out the control for brake of carriage 2, to elevator controlling portion 210
The order of system, and clamshell doors traveling protective device 250 export control for brake order, even as a result, wherein some
In the case that failure etc. has occurred in structure, it can be also reliably achieved control for brake, therefore can be improved safety.
Although several embodiments of the invention are described, these embodiments are to propose as an example
, it is not intended that limit the protection scope of invention.These novel embodiments can be implemented with various other ways, not inclined
In the range of invention objective, various omissions, substitutions and changes can be carried out.These embodiments or its deformation are included in invention
Protection scope or objective in, also, be included in claims documented by invention and its equivalent protection scope in.
Claims (10)
1. a kind of elevator maintenance Work support system, which is characterized in that have:
The carriage of elevator；
Traction machine goes up and down the carriage in elevating road；
Brake brakes the traction machine；
Door open running protective device, the door open running protective device have: driving power supply control portion is carried out as to the elevator
Braking, disconnect the power supply to the traction machine；Brake power supply control portion is disconnected as the braking carried out to the elevator
Power supply to the brake；And confirmation portion, confirm that the driving power supply control portion is with brake power supply control portion
No regular event, and save the result of the confirmation；
Position detection part detects the position of the carriage；
Into test section, detection enters and leaves the operating personnel of working space；
Confirmation request portion detects operating personnel in the working space by the entrance test section and passes through the position
When test section detects that the carriage is located at defined position, the door open running protective device be confirmed whether normally dynamic
The confirmation request of work；
License portion is receiving base as the response in response to the confirmation request from the door open running protective device
In the confirmation portion save confirmation result, content be operating normally response in the case where, allow the carriage from most
Bottom downlink operation of the high level to the operation of the top uplink of the elevating road or the carriage from lowermost layer to the elevating road；
And
Brake command portion, in the case where the carriage is located at prespecified upper limit position or more, or in the carriage position
In prespecified lower position situation below, the request of Xiang Suoshu door open running protective device carries out the system of the carriage
It is dynamic.
2. elevator maintenance Work support system according to claim 1, which is characterized in that
Space of the working space between the top and the carriage；
It is described as defined in position be it is described it is top more than；
The prespecified upper limit position is between the top.
3. elevator maintenance Work support system according to claim 1, which is characterized in that
Space of the working space between the bottom and the carriage；
Position as defined in described is the lowermost layer or less；
The prespecified lower position is located at the lowermost layer between the bottom.
4. elevator maintenance Work support system according to any one of claim 1 to 3, which is characterized in that
The door open running protective device is further equipped with the brake action confirmation for confirming whether the brake is normally opened and closed
Portion, the confirmation portion further save the result of the confirmation in brake action confirmation portion；
It is the brake that the license portion, which further receives content in the result of the confirmation saved as the confirmation portion,
In the case where the response being normally opened and closed, allow the carriage from described top to the operation of top uplink or the carriage from institute
Lowermost layer is stated to run to bottom downlink.
5. elevator maintenance Work support system according to any one of claim 1 to 3, which is characterized in that
The license portion the brake command portion to door open running protective device request carry out the carriage braking it
Afterwards, in the case where the order of the downlink operation has been accepted when the carriage is located at the upper limit position or more, allow under this
Row operation, or in the case where accepted when the carriage is located at the lower position or less the order that the uplink is run,
The uplink is allowed to run.
6. elevator maintenance Work support system according to claim 4, which is characterized in that
The license portion the brake command portion to door open running protective device request carry out the carriage braking it
Afterwards, in the case where the order of the downlink operation has been accepted when the carriage is located at the upper limit position or more, allow under this
Row operation, or in the case where accepted when the carriage is located at the lower position or less the order that the uplink is run,
The uplink is allowed to run.
7. elevator maintenance Work support system according to any one of claim 1 to 3, which is characterized in that
The brake command portion the carriage between the top or the carriage be located at it is described
Lowermost layer is between the bottom, and in the case that the speed of the carriage is more than or equal to prespecified speed, Xiang Suoshu
The request of door open running protective device carries out the braking of the carriage.
8. elevator maintenance Work support system according to claim 4, which is characterized in that
The brake command portion the carriage between the top or the carriage be located at it is described
Lowermost layer is between the bottom, and in the case that the speed of the carriage is more than or equal to prespecified speed, Xiang Suoshu
The request of door open running protective device carries out the braking of the carriage.
9. elevator maintenance Work support system according to claim 5, which is characterized in that
The brake command portion the carriage between the top or the carriage be located at it is described
Lowermost layer is between the bottom, and in the case that the speed of the carriage is more than or equal to prespecified speed, Xiang Suoshu
The request of door open running protective device carries out the braking of the carriage.
10. elevator maintenance Work support system according to claim 6, which is characterized in that
The brake command portion the carriage between the top or the carriage be located at it is described
Lowermost layer is between the bottom, and in the case that the speed of the carriage is more than or equal to prespecified speed, Xiang Suoshu
The request of door open running protective device carries out the braking of the carriage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017042041A JP6313492B1 (en) | 2017-03-06 | 2017-03-06 | Elevator maintenance work support system |
| JP2017-042041 | 2017-03-06 |
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| Publication Number | Publication Date |
|---|---|
| CN108529371A CN108529371A (en) | 2018-09-14 |
| CN108529371B true CN108529371B (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711386088.5A Active CN108529371B (en) | 2017-03-06 | 2017-12-20 | Elevator maintenance Work support system |
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| JP (1) | JP6313492B1 (en) |
| CN (1) | CN108529371B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3587324A1 (en) * | 2018-06-22 | 2020-01-01 | Otis Elevator Company | Elevator system |
| CN110002307A (en) * | 2019-03-25 | 2019-07-12 | 上海富士电梯有限公司 | Elevator reparing based on image recognition protects system |
| WO2021001900A1 (en) * | 2019-07-01 | 2021-01-07 | 三菱電機ビルテクノサービス株式会社 | Elevator position detection system |
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|---|---|---|---|---|
| US7849975B2 (en) * | 2007-01-03 | 2010-12-14 | Kone Corporation | Safety arrangement of an elevator having sensors limiting extent of elevator travel |
| WO2010150644A1 (en) * | 2009-06-23 | 2010-12-29 | 三菱電機株式会社 | Elevator device |
| JP2011178496A (en) * | 2010-02-26 | 2011-09-15 | Toshiba Elevator Co Ltd | Control device for elevator |
| JP2012006759A (en) * | 2010-06-28 | 2012-01-12 | Hitachi Building Systems Co Ltd | Inspection method of device for preventing elevator car from traveling while elevator door is open, and elevator monitoring device |
| CN202245603U (en) * | 2011-08-31 | 2012-05-30 | 铃木电梯（中国）有限公司 | Traveling protective device of elevator leveling rear door |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5349590B2 (en) * | 2009-06-10 | 2013-11-20 | 三菱電機株式会社 | Elevator equipment |
| JP2012001361A (en) * | 2010-06-21 | 2012-01-05 | Mitsubishi Electric Corp | Control device for elevator |
-
2017
- 2017-03-06 JP JP2017042041A patent/JP6313492B1/en active Active
- 2017-12-20 CN CN201711386088.5A patent/CN108529371B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7849975B2 (en) * | 2007-01-03 | 2010-12-14 | Kone Corporation | Safety arrangement of an elevator having sensors limiting extent of elevator travel |
| WO2010150644A1 (en) * | 2009-06-23 | 2010-12-29 | 三菱電機株式会社 | Elevator device |
| JP2011178496A (en) * | 2010-02-26 | 2011-09-15 | Toshiba Elevator Co Ltd | Control device for elevator |
| JP2012006759A (en) * | 2010-06-28 | 2012-01-12 | Hitachi Building Systems Co Ltd | Inspection method of device for preventing elevator car from traveling while elevator door is open, and elevator monitoring device |
| CN202245603U (en) * | 2011-08-31 | 2012-05-30 | 铃木电梯（中国）有限公司 | Traveling protective device of elevator leveling rear door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108529371A (en) | 2018-09-14 |
| JP2018144954A (en) | 2018-09-20 |
| JP6313492B1 (en) | 2018-04-18 |
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