CN106865397A - Apparatus of passenger conveyor - Google Patents
Apparatus of passenger conveyor Download PDFInfo
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- CN106865397A CN106865397A CN201610842159.7A CN201610842159A CN106865397A CN 106865397 A CN106865397 A CN 106865397A CN 201610842159 A CN201610842159 A CN 201610842159A CN 106865397 A CN106865397 A CN 106865397A
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- motor
- torque
- value
- inverter
- brake
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
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- Escalators And Moving Walkways (AREA)
Abstract
Apparatus of passenger conveyor possesses：The multiple steps moved between top stopping port and bottom stopping port；Through the motor that the reducer shaft of drive belt and decelerator links；The sprocket wheel for driving force from decelerator being input into through drive chain and being transmitted to step, the motor control system of the torque with control motor and manages the control device of the torque instruction value sent to motor, and motor control system has：Three-phase alternating current from three phase mains is transformed to the transverter of direct current；The smoothing capacity device for smoothing the DC voltage after being converted by transverter；By alternating current that DC voltage conversion is assigned voltage and assigned frequency, the inverter that the alternating current is exported to motor and torque instruction value is exported to control device；The control circuit of control signal is given to inverter, control device compares torque instruction value and torque judgment value from inverter, when torque instruction value deviates torque judgment value, is judged as generating exception in drive belt or drive chain, performs operating stopping action.
Description
Technical field
The present invention relates to apparatus of passenger conveyor such as a kind of escalator, electric roads.
Background technology
It is configured to possess as the escalator of apparatus of passenger conveyor, electric road etc. and links for ring-type between stopping port
Mobile step, the bannister located at the both sides of step and the mobile handrail synchronization-moving with step on the bannister, and by ladder
Passenger in level is carried to lower ladder way from boarding mouthful.
When apparatus of passenger conveyor is driven, usually using following drive device：Horse is linked by drive belt, drive chain etc.
Up to and decelerator, by the rotation of motor axis of rotation to reducer shaft transmit, by drive chain etc. link decelerator and sprocket wheel, will subtract
The rotation of fast device axle is transmitted to sprocket wheel, so as to drive the step linked with sprocket wheel.
In the case of using drive device, rotation detector is set on reducer shaft, the speed of reducer shaft is carried out
Monitoring, can detect the exception of the rotary speed of reducer shaft according to the detection output of rotation detector.But, carry out
In the case of the speed monitoring of reducer shaft, in generation and the sliding of drive belt, when cutting off associated exception of drive chain, exist
The situation of change cannot be manifested in the rotation of reducer shaft, therefore the different of the rotary speed of reducer shaft cannot be reliably detected
Often.For example, in the case where drive chain cuts off, because reducer shaft continues normal rotation, therefore cannot be from rotation detector
The exception of reducer shaft is detected in detection output.In addition, in the case where drive belt slides, there is the rotation of reducer shaft
The speed for turning continues the situation of normal condition within a certain period of time, therefore exists to the detection from the detection of rotation detector output
Time-consuming situation untill going out the exception of reducer shaft.Accordingly, there exist there is following manner：On drive belt periphery, sensor is set
Deng and abnormal mode (with reference to patent document 1) from the output detection drive belt of sensor, set on drive chain periphery and sense
Device etc. and from sensor output detection drive chain abnormal mode (with reference to patent document 2), starting when carry out it is special
Act and the abnormal mode (with reference to patent document 3) of drive belt is detected according to the operation information of inverter.
Citation
Patent document 1：Japanese Unexamined Patent Publication 2004-137040 publications
Patent document 2：Japanese Unexamined Patent Publication 2001-261275 publications
Patent document 3：Japanese Unexamined Patent Publication 2008-169020 publications
In the first technology described in patent document 1, sensor is set on drive belt periphery, is capable of detecting when drive belt
Fracture, abrasion, elongation, sliding, vibration it is such abnormal.However, it is desirable to set special sensor.
In addition, in the first technology described in patent document 2, being configured to drive the tooth for transmitting sprocket wheel with main by setting
Top has the load detecting portion of the load of the friction stopping device and detection motor of predetermined distance, compares and is examined by load
The load that survey portion detects and the load without the motor in the state of passenger, not contacted with main driving transfer chain can just examine
Survey the main cut-out for driving transfer chain or bending of exception etc..However, it is desirable to set special load detecting portion.
In addition, in the first technology described in patent document 3, using following structure, i.e. including：Monitoring is by for controlling
The mechanism of the activation bit of the drive motor of the torque instruction output of the driving of drive motor processed；Decelerator is rotated into
The arrestment mechanism of row braking；Detect the rotation testing agency of the rotation status of decelerator；Control the action of arrestment mechanism and supervise
The information of apparent rotation testing agency and MA monitoring agency and control the drive device controlling organization of torque instruction mechanism；And band
Power MA monitoring agency, it drives in the case where will remain non-rotary state with carrier by arrestment mechanism with to drive motor
Dynamic mode makes torque instruction mechanism send order, thus, if the output frequency of MA monitoring agency is constant, is judged as not occurring
Band sliding, if also, the output frequency of MA monitoring agency change, judge band sliding such that it is able to detect drive belt
Tension force exception.But, although special action during by starting, the tension force exception of drive belt can be detected, but in operation,
The tension force exception of drive belt cannot be detected.
The content of the invention
It is an object of the present invention to provide a kind of apparatus of passenger conveyor, it is without driving the periphery of force transfer mechanism to set
Put sensor special, it becomes possible in operation before step reaches velocity anomaly state, detection drives the different of force transfer mechanism
Normal and safety stop.
In order to solve the problem, the present invention provides a kind of apparatus of passenger conveyor, and it possesses：Multiple steps, they link
Moved between top stopping port and bottom stopping port for ring-type；Motor, its via drive belt with the decelerator of decelerator
Axle links；And sprocket wheel, it links via drive chain with the rotary shaft driven by the decelerator, and will be from the deceleration
The driving force of device is transmitted to the step, it is characterised in that the apparatus of passenger conveyor has：Motor control system, it is used for
Control the torque of the motor；And control device, it manages the torque instruction value sent to the motor, the motor control
System has：Transverter, the three-phase alternating current from three phase mains is transformed to direct current by it；Smoothing capacity device, it makes to be changed by described
DC voltage smoothing after stream device conversion；Inverter, the DC voltage conversion is assigned voltage and assigned frequency by it
Alternating current, and by the alternating current after converting exported to the motor and by with the output current value exported to the motor
Corresponding torque instruction value is exported to the control device；And control circuit, it gives control signal to the inverter, institute
Control device is stated to be compared the torque instruction value from the inverter with torque judgment value, it is inclined in the torque instruction value
In the case of the torque judgment value, it is judged as the driving force transmission including including the drive belt or the drive chain
Exception is generated in mechanism, and performs operating stopping action.
Invention effect
According to the present invention, without driving the periphery of force transfer mechanism to set sensor special, it becomes possible to exist in operation
Before step reaches velocity anomaly state, detection drives the abnormal and safety stop of force transfer mechanism.
Brief description of the drawings
Fig. 1 is the integrally-built brief side view cutaway drawing of the apparatus of passenger conveyor for showing one embodiment of the invention.
Fig. 2 is the structure chart for illustrating control device and the structure of drive device.
Fig. 3 is the performance plot for illustrating the change of the torque instruction value of the boarding based on passenger.
Fig. 4 is the flow chart for illustrating the action of control device.
Description of reference numerals：
1：Step；2：Mobile handrail；3：Bannister；4：Boarding mouthful floor；5：Lower ladder way floor；6：Chain；7、8：Sprocket wheel；9：Horse
Reach；10：Decelerator；11：Drive device；12：Drive chain；13：Control device；14：Skirtboard portion；15：Retarder brake；16：
Operation control section；17：Torque exceptional value judging part；18：Inverter；19：Drive belt；21：Reducer shaft rotation detector；22：
Sprocket wheel auxiliary brake；23：Motor auxiliary brake；25：Rotation detector；26：Velocity anomaly judging part.
Specific embodiment
Hereinafter, embodiments of the invention are described in detail using accompanying drawing.The present invention is not limited to following implementation
Example, various modifications example, application examples are also contained in the range of it among technological concept of the invention.
Fig. 1 is the integrally-built brief side view cutaway drawing of the apparatus of passenger conveyor for showing one embodiment of the invention.
In Fig. 1, as escalator, electric road, the apparatus of passenger conveyor of function is configured to possess the multiple linked for ring-type
Handrail 2 is moved in mobile handrail 2 synchronization-moving with each step 1 and supporting in the left and right sides of each step 1 for step 1, configuration
Bannister 3.Each step 1 is configured to link boarding mouthful floor 4 and the lower ladder way for turning into bottom stopping port as top stopping port
The movable passageway on floor 5 and can move.Bannister 3 stands up skirtboard portion 14.
In the moving area of each step 1, sprocket wheel 7,8 is configured to be separated from each other and rotates freely, and is rolled up on each sprocket wheel 7,8
It is wound with the chain 6 linked each step 1 for ring-type.In the vicinity of sprocket wheel 8, drive device of the configuration with motor 9 with decelerator 10
11, sprocket wheel 8 links via drive chain 12 with drive device 11.In addition, in the vicinity of drive device 11, being arranged for controlling for driving
The control device 13 of dynamic device 11.
When motor 9 is rotated by the control of control device 11, the rotary speed of motor 9 is decelerated device 10 and slows down, and subtracts
The output of fast device 10 is transmitted via drive chain 12 to sprocket wheel 8, and each step 1 is moved along ascent direction or descent direction.Each step 1
By the movement synchronous with mobile handrail 2, when operating is declined, passenger is carried from the downward ladder way floor 5 in boarding mouthful floor 4,
When rising operating, from lower ladder way floor 5 to boarding, passenger is carried on mouthful floor 4.
Fig. 2 is the structure chart for illustrating control device and the structure of drive device.In fig. 2, apparatus of passenger conveyor
Control system is configured to include control device 13, inverter 18, retarder brake 15, sprocket wheel auxiliary brake 22 and horse
Up to auxiliary brake 23 etc..
Control device 13 in order to manage the torque instruction value relative to motor 9, such as by possessing CPU (Central
Processing Unit), memory, the computer installation structure of the messaging resource such as input/output interface (omit diagram)
Into.Now, in memory, as the program started by CPU, operation control section 16, torque exceptional value judging part 17 are stored
And velocity anomaly judging part 26.
Operation control section 16 is overall to control device 13 to be uniformly controlled, and retarder brake 15, sprocket wheel is auxiliary
Brake 22 and motor auxiliary brake 23 is helped to be managed as control object, based on sentencing for torque exceptional value judging part 17
The judged result of disconnected result or velocity anomaly judging part 26 and export halt instruction to inverter 18, and to retarder brake
15th, sprocket wheel auxiliary brake 22 and the output brake action command of motor auxiliary brake 23.Now, operation control section 16 exists
In the case of obtaining abnormal judged result from torque exceptional value judging part 17, stop as the operating for stopping motor 9
Action, motor 9 is stopped in order to cut off the output of inverter 18, and halt instruction (outputting cutting severed finger is exported to inverter 18
Make), stop as the operating for stopping retarder brake 15, sprocket wheel auxiliary brake 22 and motor auxiliary brake 23
Stop is made, and refers to the action of retarder brake 15, sprocket wheel auxiliary brake 22 and the output brake of motor auxiliary brake 23
Order.
Torque exceptional value judging part 17 obtains torque instruction value from inverter 18, compares torque instruction value and judges with torque
Value, judges that whether torque instruction value in the range of torque judgment value, will determine that result is exported to operation control section 16.
The 26 pairs of rotations of the reducer shaft rotation detector 21 of the rotary speed of detection reducer shaft of velocity anomaly judging part
Speed is compared to judge the rotary speed of reducer shaft rotation detector 21 with velocity estimated value (First Speed judgment value)
Whether in the range of velocity estimated value, and will determine that result is exported to operation control section 16, and detection Tape movement is helped
The detection speed of the rotation detector 25 of the rotary speed of the roll shaft of hand is compared with velocity estimated value (second speed judgment value)
Compared with the detection speed to judge rotation detector 25 whether in the range of velocity estimated value, and will determine that result to operating
Control unit 16 is exported.
Inverter 18 is structured to a key element of the motor control system of the torque or the driving that control motor 9.Horse
It is configured to possess up to control system：Transverter, the three-phase alternating current from three phase mains is transformed to direct current by it；Smoothing capacity device,
It makes the DC voltage after being converted by transverter smoothened；Inverter 18, its by DC voltage conversion be assigned voltage and
The alternating current (AC signal) of assigned frequency, and the motor control signal based on the AC signal after conversion is exported to motor 9,
And torque instruction value corresponding with the output current value exported to motor 9 is exported to control device 13；And control circuit
(omitting diagram), it gives control signal to inverter 18.
In inverter 18, for example with vector controlled, wherein, will be flowed in the motor 9 being made up of asynchronous motor
Current Decomposition for produce torque (revolving force) current component with produce magnetic flux current component, independently control each electric current into
Point, the direction of the magnetic flux of the rotating excitation field of motor 9 and size are controlled as vector.Now, inverter 18 is from control
Device 13 receives situation, the i.e. judged result of torque exceptional value judging part 17 and the velocity anomaly judging part 26 of operation instruction
In the case of judged result difference is normal, the output current value calculating torque according to inverter 18 refers to calculated value as torque
Make value and exported to control device 13, the rotation speed for controlling motor 9 is generated based on the control signal from control circuit
Degree, the motor control signal of direction of rotation, motor 9 is put on by the motor control signal of generation.The control motor 9 of inverter 18
Rotary speed, direction of rotation, thus control running speed (rotation direction), acceleration, the deceleration of each step 1.On the other hand,
In the case where halt instruction is received from control device 13, inverter 18 shuts down and cuts off output.Thus, direction is cut off
The power supply supply of motor 9, stops motor 9.
The rotary shaft of motor 9 is connected via drive belt 19 with reducer shaft.The rotary shaft 24 driven by decelerator 10 is passed through
It is connected with sprocket wheel 8 by drive chain 12.Now, the driving force from decelerator 10 is via rotary shaft 24, drive chain 12 and chain
Wheel 8 is transmitted to step 1.Step retarder brake 15 is responded and performs use from the brake action command of operation control section 16
Acted in the brake for stopping the rotation of decelerator 10, sprocket wheel auxiliary brake 22 responds the braking from operation control section 16
Device action command and perform for make sprocket wheel 8 rotation stop brake act, motor auxiliary brake 23 response from fortune
Turn the brake action command of control unit 16 and perform and acted for the brake for stopping the rotation of motor 9.
Fig. 3 is the performance plot for illustrating the change of the torque instruction value of the boarding based on passenger.In Fig. 3 (A), (B),
Torque instruction value remains the value of constant, afterwards, such as in each step 1 during motor 9 is operated with constant speed
On take most two passengers successively in the case of, increase successively along characteristic 100, on the other hand, from each step 1 successively under
In the case of going most two passengers, reduced successively along characteristic 101.
Here, in the case where drive belt 19 or drive chain 12 are cut off, due to the load urgency applied to drive device 11
It is changed into no-load condition acutely, therefore, such as shown in Fig. 3 (A), torque instruction value is drastically reduced from constant value along characteristic 102,
As it is non-loaded when value.That is, torque instruction value deviates normal with what characteristic 101 specified by representing the characteristic 100 of normal value
Scope (scope of the torque rate of change scope based on passenger's boarding, the i.e. normal value of expression torque rate of change), as non-loaded
When value.
In addition, in the case where drive belt 19 slides, it is gently risen to being supported on for the applying of drive device 11
Afterwards, drastically reduce, therefore, such as shown in Fig. 3 (B), torque instruction value steeply rises it in the value from constant along characteristic 103
Afterwards, drastically reduce, constant torque command value when being slid as band.That is, torque instruction value deviates the characteristic by representing normal value
100 scopes specified with characteristic 101 (the torque rate of change scope based on the passenger's boarding, i.e. normal value of expression torque rate of change
Scope), constant torque command value when being slid as band.
Fig. 4 is the flow chart for illustrating the action of control device.In fig. 4, in the case of during escalator is operated,
The operation control section 16 of control device 13 exports operation instruction (S1) to inverter 18.Now, inverter 18 is according to operation instruction
And apply to be controlled to the motor control signal of constant rotary speed for motor 9 to motor 9.When motor 9 is with constant rotation
When speed is operated, the value of constant is retained as from the torque instruction value of the output of inverter 18.
During motor 9 is operated with constant rotary speed, control device 13 is based on reducer shaft and rotates inspection
Survey the detection output of device 21 and judge the speed of motor 9 whether in accelerating (speed accelerate in) or (speed subtracts in slowing down
In speed) (S2), in the case of the judged result for obtaining affirmative by step S2, the treatment of return to step S1, by step
In the case that S2 obtains the judged result of negative, when whether the rate of change for judging torque instruction value is passenger's boarding more than
(S3).That is, 17 pairs of torque instruction values exported by inverter 18 of the torque exceptional value judging part of control device 13 judge with torque
The torque instruction value specified by characteristic 100 (is set to higher limit, the torque instruction value specified by characteristic 101 is set into lower limit by value
The torque judgment value of value) be compared judge torque instruction value whether in torque judgment value scope (torque judgment value
The scope of higher limit and lower limit) in, and will determine that result is exported to operation control section 16.
Control device 13 in the case of the judged result for obtaining negative by step S3, the treatment of return to step S1,
In the case of situation, the i.e. scope of torque instruction value deviation torque judgment value of the judged result of affirmative is obtained by step S3,
Execution is set to the treatment (S4) of the abnormality detection as the drive belt 19 or drive chain 12 for driving force transfer mechanism, afterwards, holds
Row (is used to stop motor 9, further make decelerator 10 stop with sprocket wheel 8 as needed for the stopping action for stopping operating
Stopping action only) (S5), afterwards, terminate the treatment in the program.
In step S3 and S4, control device 13 deviates the model of torque judgment value in the torque instruction value from inverter 18
In the case of enclosing, drastically reduced from constant value with torque instruction value and become less than the lower limit of torque judgment value as condition,
Execution is set to the treatment of the abnormality detection of the cut-out based on drive belt 19 or drive chain 12, with torque instruction value from constant value
Drastically increase and exceed the higher limit of torque judgment value, become less than the lower limit of torque judgment value afterwards for condition, execution sets
It is the treatment of the abnormality detection of the sliding based on drive belt 19.It should be noted that the abnormal inspection of the sliding based on drive belt 19
The higher limit that torque instruction value drastically increases and exceed torque judgment value from constant value only can also be set to condition by survey.At this
In the case of kind, being capable of early detection.
In step s 5, the judged result of abnormality detection of the operation control section 16 to be received from torque exceptional value judging part 17
It is condition, halt instruction is exported to inverter 18.When inverter 18 receives halt instruction, inverter 18 shuts down and cuts off
Output.As a result, cut-out is supplied towards the power supply of motor 9, motor 9 stops.
In addition, in the case that the driving force transfer mechanism including including drive belt 19 or drive chain 12 has exception,
Cannot also make the situation of the stopping of step 1 in the presence of even if decelerator 10 is stopped, therefore, operation control section 16 is sentenced with from torque exceptional value
The judged result that disconnected portion 17 receives abnormality detection is condition, after to the output halt instruction of inverter 18, to decelerator system
Dynamic device 15, sprocket wheel auxiliary brake 22 and the output brake action command of motor auxiliary brake 23.It should be noted that should
The output of brake action command is necessary in the case of the abnormality detection of the cut-out based on drive belt 19 or drive chain 12
, but be not required in the case of the abnormality detection of the sliding based on drive belt 19.But, stop to safely operate
Only, it is also preferred that carrying out the output of the brake action command in the case of the abnormality detection of the sliding based on drive belt 19.Subtract
Fast device brake 15, sprocket wheel auxiliary brake 22 and motor auxiliary brake 23 perform braking in response to brake action command
Device is acted, and brake force is thus acted on decelerator 10, sprocket wheel 8 and motor 9 respectively, and decelerator 10, sprocket wheel 8 and motor 9 stop
Only.
According to the present embodiment, without the periphery of the driving force transfer mechanism including including drive belt 19 or drive chain 12
Sensor special is set, it becomes possible in the operating of apparatus of passenger conveyor before step 1 reaches velocity anomaly state, detection is driven
The exception of Poewr transmission mechanism, makes apparatus of passenger conveyor safety stop.In addition, according to the present embodiment, sentencing from torque exceptional value
In the case that disconnected portion 17 receives the judged result of abnormality detection, sprocket wheel auxiliary brake 22 and the sound of motor auxiliary brake 23
Answer brake action command and perform brake and act, therefore, it is possible to stop decelerator 10, sprocket wheel 8 and motor.
It should be noted that the present invention is not limited to the above embodiments, comprising various modifications example.For example, above-mentioned
In embodiment, it has been described in detail for the ease of understanding the explanation present invention, but has not necessarily been defined to possess illustrated complete
Portion's structure.For a part for the structure of embodiment, adding, eliminate, replacing for other structures can be carried out.
Alternatively, it is also possible to some or all of above-mentioned each structure, function etc. are for example passed through into integrated design circuit
Realized Deng by hardware.In addition, above-mentioned each structure, function etc. can also be explained by processor, perform and realize each function
Program and by software realize.Realize the information such as program, catalogue, the file of each function can be pre-recorded in memory, hard disk,
The recording mediums such as tape deck or IC-card, SD card, DVD such as SSD (Solid State Drive).
Claims (5)
1. a kind of apparatus of passenger conveyor, it possesses：
Multiple steps, they link moves for ring-type between top stopping port and bottom stopping port；
Motor, it links via drive belt with the reducer shaft of decelerator；And
Sprocket wheel, it links via drive chain with the rotary shaft that is driven by the decelerator, and by the drive from the decelerator
Power is transmitted to the step,
Characterized in that,
The apparatus of passenger conveyor has：
Motor control system, its torque for being used to control the motor；And
Control device, it manages the torque instruction value sent to the motor,
The motor control system has：
Transverter, the three-phase alternating current from three phase mains is transformed to direct current by it；
Smoothing capacity device, it smooths the DC voltage after being converted by the transverter；
Inverter, the DC voltage conversion is the alternating current of assigned voltage and assigned frequency by it, and after this is converted
Alternating current is exported and by torque instruction value corresponding with the output current value exported to the motor to described to the motor
Control device is exported；And
Control circuit, it gives control signal to the inverter,
The control device is compared to the torque instruction value from the inverter with torque judgment value, refers in the torque
In the case of making value deviate the torque judgment value, it is judged as the driving including including the drive belt or the drive chain
Exception is generated in force transfer mechanism, and performs operating stopping action.
2. apparatus of passenger conveyor according to claim 1, it is characterised in that
The control device in the case where the torque instruction value deviates the torque judgment value, with the torque instruction value from
Constant value is drastically reduced and becomes less than the lower limit of the torque judgment value for condition, be judged as because of the drive belt or
The cut-out of the drive chain and cause exception.
3. apparatus of passenger conveyor according to claim 1, it is characterised in that
The control device in the case where the torque instruction value deviates the torque judgment value, with the torque instruction value from
Constant value drastically increases and exceedes the higher limit of the torque judgment value for condition, or with the torque instruction value from constant
Value drastically increase and exceed the higher limit of the torque judgment value, the lower limit that then becomes smaller than the torque judgment value and be
Condition, is judged as causing exception because of the sliding of the drive belt.
4. apparatus of passenger conveyor according to any one of claim 1 to 3, it is characterised in that
The control device cuts off institute in the case where the abnormal judged result is obtained as the operating stopping action
State the output of inverter and stop the operating of the motor.
5. the apparatus of passenger conveyor according to Claims 2 or 3, it is characterised in that
As control object be managed brake as described below by the control device：Perform for making the decelerator
Rotation stop brake action retarder brake, perform for make the motor rotation stop brake act
Motor auxiliary brake and perform for make the sprocket wheel rotation stop brake action sprocket wheel auxiliary braking
Device, in the case where the abnormal judged result is obtained, the operating of the inverter is made as the operating stopping action
Stop, and stop the operating of the motor via the inverter, and make the retarder brake, the motor auxiliary
Help brake and the sprocket wheel auxiliary brake to perform brake to act.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-241493 | 2015-12-10 | ||
| JP2015241493A JP6537446B2 (en) | 2015-12-10 | 2015-12-10 | Passenger conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106865397A true CN106865397A (en) | 2017-06-20 |
| CN106865397B CN106865397B (en) | 2018-06-26 |
Family
ID=59058796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610842159.7A Active CN106865397B (en) | 2015-12-10 | 2016-09-22 | Apparatus of passenger conveyor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6537446B2 (en) |
| CN (1) | CN106865397B (en) |
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| JP2001261275A (en) * | 2000-03-16 | 2001-09-26 | Hitachi Ltd | Safety apparatus of passenger conveyer |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2017105607A (en) | 2017-06-15 |
| CN106865397B (en) | 2018-06-26 |
| JP6537446B2 (en) | 2019-07-03 |
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