CN107226413A - Deterioration diagnosis device for moving handrail, mobile handrail deterioration diagnosis method and its position used determine mark - Google Patents
Deterioration diagnosis device for moving handrail, mobile handrail deterioration diagnosis method and its position used determine mark Download PDFInfo
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- CN107226413A CN107226413A CN201710159842.5A CN201710159842A CN107226413A CN 107226413 A CN107226413 A CN 107226413A CN 201710159842 A CN201710159842 A CN 201710159842A CN 107226413 A CN107226413 A CN 107226413A
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- handrail
- deterioration diagnosis
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- mobile
- magnetic flux
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
- B66B31/02—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for handrails
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The present invention provides a kind of deterioration diagnosis device for moving handrail for the attribute that passenger conveyor-belt can be confirmed using data are detected.Deterioration diagnosis device for moving handrail (12) detects the magnetic flux from the steel rope in the mobile handrail of passenger conveyor-belt using magnetic flux transducer (13), the damage of steel rope is detected based on detected magnetic flux, the deterioration diagnosis device for moving handrail (12) possesses the magnetic (M) with clearance portion, the clearance portion is arranged at mobile handrail, and with the pattern corresponding with the attribute of passenger conveyor-belt, the deterioration diagnosis device for moving handrail (12) detects the magnetic flux from magnetic using magnetic flux transducer.
Description
Technical field
The damage of the mobile handrail possessed the present invention relates to the passenger conveyor-belt to handrail elevator or movable sidewalk etc.
Deterioration diagnosis device for moving handrail, mobile handrail deterioration diagnosis method and its position determination mark used diagnosed.
Background technology
It is used as the prior art in above-mentioned field, such as known technology having described in patent document 1.In this technology,
The mobile handrail of passenger conveyor-belt is pasted with iron foil sheet material, using magnetic crack detection device come to from the steel rope inside mobile handrail
The leakage magnetic flux that (steel wire rope) is leaked out and the magnetic flux from iron foil sheet material are detected in the lump.By to from iron foil sheet material
Magnetic flux detected obtained from detection signal as detect steel rope damage position when reference position know
Other reference signal.Thereby, it is possible to detect the damage position of steel rope exactly.
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 10-218541 publications
The content of the invention
The technical problems to be solved by the invention
It is above-mentioned in the prior art, reference position can be recognized using signal data is detected, but need to utilize other method
It will detect that attribute (manufacture numbering etc.) of the data with the passenger conveyor-belt as measure object is associated.Accordingly, there exist movement
The problem of deterioration diagnostic operation of handrail becomes complexity.
Therefore, examined the present invention relates to the deterioration of the mobile handrail for the attribute that passenger conveyor-belt can be confirmed using data are detected
Disconnected device and mobile handrail deterioration diagnosis method.
Solve the technical scheme that technical problem is used
In order to solve the above problems, deterioration diagnosis device for moving handrail involved in the present invention is examined using magnetic flux transducer
The magnetic flux from the steel rope in the mobile handrail of passenger conveyor-belt is surveyed, steel rope is detected based on the magnetic flux detected
Damage, the deterioration diagnosis device for moving handrail possesses the magnetic with clearance portion, and magnetic is come from using magnetic flux transducer detection
The magnetic flux of body, wherein, the clearance portion is arranged at mobile handrail, with the pattern corresponding with the attribute of passenger conveyor-belt.
In addition, in order to solve the above problems, mobile handrail deterioration diagnosis method involved in the present invention, which is based on coming from, to be located at
The magnetic flux of steel rope in the mobile handrail of passenger conveyor-belt detects the damage of the steel rope, is glued on the surface of mobile handrail
Magnetic paper tinsel body of the patch with clearance portion, then, while driving mobile handrail, to the magnetic flux from magnetic paper tinsel body and from steel
The magnetic flux of rope making detected, wherein, the clearance portion has the pattern corresponding with the attribute of passenger conveyor-belt.
In addition, in order to solve the above problems, position involved in the present invention determines that mark is used to represent to passenger conveyor-belt
Mobile handrail when being diagnosed of the deterioration of mobile handrail reference position, it possesses the magnetic with clearance portion, wherein,
The clearance portion has the pattern corresponding with the attribute of passenger conveyor-belt.
Invention effect
In accordance with the invention it is possible to include the information related to the damage of steel rope and and passenger in flux detection data
The related information of conveyer belt, therefore, it is possible to confirm the attribute of the passenger conveyor-belt as diagnosis object by the use of data are detected.
Technical problem other than the above, structure and effect are by the explanation of implementation below come further clear and definite.
Brief description of the drawings
Fig. 1 is the passenger conveyor-belt for representing to detect the deterioration damage of mobile handrail using an embodiment of the invention
Structure stereogram.
Fig. 2 is the side view of the internal structure for the handrail elevator for representing Fig. 1.
Fig. 3 shows the brief configuration of the deterioration diagnosis device for moving handrail as an embodiment of the invention.
Fig. 4 shows that position determines the example of mark and detects the example of signal.
Fig. 5 shows that position determines the other examples of mark.
Fig. 6 shows that position determines the other examples of mark.
Embodiment
Below, embodiments of the present invention are illustrated referring to the drawings.
Fig. 1 is to represent to utilize the deterioration diagnosis device for moving handrail as an embodiment of the invention or deterioration diagnosis
The stereogram of the structure for the passenger conveyor-belt that deterioration of the method to detect mobile handrail is damaged.In addition, in Fig. 1, passenger conveyor-belt
For handrail elevator.
As shown in figure 1, handrail elevator 1 possesses for the step 2 of passenger's standing and identical with the direction of advance of step 2
The mobile handrail 3 that side is moved up.Mobile handrail 3 is synchronizedly moved along railing 4 with step 2, and the railing 4 is erectly set
In on the base portion 5 positioned at the left and right sides of step 2.In addition, mobile handrail 3 is arranged at the left and right sides in the direction of advance of step 2.Move
The surface of dynamic handrail is pasted with position and determines mark M as described later, the handrail electricity for determining reference position and measure object
Manufacture numbering of ladder etc..Position determines mark M by the magnetic paper tinsel body that can be detected by magnetic crack detection is constituted.In Fig. 1,
On the respective surface of mobile handrail of the left and right sides, it is pasted with a position in same position respectively and determines mark M, but not office
It is limited to this, the different position of left and right sides can also be pasted onto, or paste multiple.
Mobile handrail 3 is formed as ring-type, is surround along railing 4, the railing 4 is in the side parallel with the moving direction of step 2
Set up in the both sides of step 2.That is, mobile handrail 3 is identical with the direction of advance of step 2 on the upside edge of railing 4
Direction movement, reach railing 4 end when in arc-shaped move downwards, tool is introduced into the state of turning upside down
The inside of the base portion 5 of standby skirt net etc..Then, mobile handrail 3 is by base portion 5, reaching the opposite end of railing 4, above and below
Reverse state is moved to outside from base portion 5, and top is moved in arc-shaped, the upside of railing 4 is returned to.In addition, base portion 5
The drive device of inside provided with the mobile handrail 3 of driving etc..
Fig. 2 is the side view of the internal structure for the handrail elevator 1 for representing Fig. 1.
As shown in Fig. 2 handrail elevator 1 possesses the floor on embedment upper strata and the floor of lower floor and in-between by the ground on upper strata
The framework 6 of the floor connection of plate and lower floor.In addition, rotated using the drive device (not shown) for being arranged at upper floor
Drive sprocket 7 and it is arranged on the driven chain gear teeth 8 of lower floor and is wound with chain (not shown), multiple shown in Fig. 1
Rank 2 is annularly arranged at the ring chain.
Mobile handrail 3 by the end tooth 9 of mobile handrail driving as shown in Fig. 2 be driven.End tooth 9 is by by not shown
The drive sprocket 7 that is rotated of drive device and chain 10 constitute, synchronize rotation.Thus, drive sprocket is received
The driving force of tooth 7, mobile handrail 3 is driven in the same direction with Tai Ji 2 with identical speed.The movement handrail 3 is by multiple
Move arm supports guide portion 11 and be arranged at the tensioning apparatus between mobile arm supports guide portion 11 to ensure and keep to open
Power.
In addition, mobile handrail 3 has horizontal part A and circular-arc part B on upper strata and lower floor as shown in Figure 2, positioned at levels
Horizontal part A between be in heeling condition.
As shown in Fig. 2 the position shown in Fig. 1 determines that mark M is attached to the surface of mobile handrail, therefore with moving handrail one
Driven with by circulation.
As the deterioration diagnosis device for moving handrail of an embodiment of the invention to the handrail electricity with said structure
Ladder 1 is acted as follows：The horizontal part A of the loop side of the mobile handrail 3 come is moved through in base portion 5 and framework 6, is measured
To carry out deterioration diagnosis to mobile handrail 3.In addition, the set location of deterioration diagnosis device for moving handrail can be upper strata, also may be used
Think lower floor.
Fig. 3 shows the brief configuration of the deterioration diagnosis device for moving handrail as an embodiment of the invention.Fig. 3
Show and position is determined that mark is pasted on mobile handrail, deterioration diagnosis device for moving handrail is installed on to the shape of handrail elevator
State.
As shown in figure 3, determining mark M as position is pasted with the predetermined portion for moving the reference position on handrail 3.It is viscous
Unit is pasted in addition to adhesiveness adhesive plaster, any means can also be applicable, for example, position is determined that mark M has adhesiveness in itself
Method etc..
In mobile handrail diagnostic device 12, coil portion 13 possesses magnetization coil or electromagnet and search coil, the magnetic
Change is determined to mark M magnetic paper tinsel body to magnetize, is somebody's turn to do with coil or electromagnet to the steel rope in mobile handrail and composition position
Magnetic flux produced by search coil determines mark M to steel rope and position is detected.14 pairs of detections of control unit start and detected
Terminate, obtained from search coil and detect that signal, excitation of magnetization coil etc. are controlled.In addition, control device 14 with generally
Magnetic fault detector it is identical, carry out the signal transacting such as detection, extract because of signal obtained from damage.
In addition, magnetization coil can be formed separately with coil portion 13, can also be outside mobile handrail diagnostic device
Magnetizing assembly comprising field power supply is possessed.Alternatively, it is also possible to replace visiting using other magnetic flux transducers such as Hall element
Test coil.
Coil portion 13 is connected with control unit 14 by the linking part 15 comprising signal wire.Detected by coil portion 13
Signal is sent to control unit 14 via linking part 15, after signal processing, is temporarily stored in control unit 14.It is stored in control
The detection signal in portion 14 is read to the computer systems such as PC 16 via the connection cables such as USB 17.Computer system
16 by performing regulated procedure, to carry out data processing to the detection signal data got, and the deterioration to mobile handrail is entered
Row judges.In addition, the data communication between control unit 14 and computer system 16 can also use the nothings such as WI-FI (registration mark)
Line communication means, to replace connection cable 17.
In the case that steel rope in mobile handrail has broken string equivalent damage portion, steel rope is magnetized by coil portion 13, with
It is bigger than normal portions in the leakage magnetic flux of pars affecta afterwards.Therefore, in the case where the detected Coil Detector of leakage field of pars affecta is arrived, energy
Obtain signal level, waveform the detection signal different from normal portions.Therefore, it is possible to be measured using the signal of search coil
The position of pars affecta.
In addition, as described later, constituting position and determining that mark M magnetic paper tinsel body is provided with slit portion.The slit portion is also produced Lou
Magnetic, but its state is different because of the shape of slit portion, size, number, position, configuration etc., correspondingly, the inspection of search coil
The signal pattern for surveying signal is different.Therefore, if making the pattern of slit portion manufacture the different and different of numbering according to handrail elevator,
The detection signal in mark M can be then determined according to position to recognize manufacture numbering.In addition, can obtain position determines that mark M consolidates
Some detection signals, therefore, it is possible to confirm reference position using the detection signal of search coil.
Fig. 4 shows that position determines the example of mark and position is determined into mark is pasted on mobile handrail, is moved in driving
The example of detection signal when detecting that out position determines to mark using mobile handrail diagnostic device 12 while dynamic handrail.In addition,
Position with rectangular configuration determines that the long side direction of mark is the direction of mobile handrail operation.
Position as shown in Figure 4 determines mark M1 like that, with a slit portion S1 (blackboard is applied in figure), is utilizing movement
Handrail diagnostic device 12 is come in the case of detecting slit portion S1, detected in detection signal N1 has larger change as signal P1
The signal of change.In addition, determined such as position mark M2 like that, by two slit portion S2 and S3 in the case of the configuration, detecting
Large change is detected in signal N2 and with the signal P2 and P3 of the waveform being connected.
Thereby, it is possible to according to the pattern that position determines the slit portion of the magnetic paper tinsel body marked is arranged at, to obtain specific
Signal waveform.Therefore, the mark or numeral for manufacturing numbering according to constituting, set the different pattern of slit portion, by place respectively
Put and determine that the mark setting slit pattern corresponding with manufacture numbering is arranged, so as to obtain the detection letter corresponding with manufacturing numbering
Number waveform.Thereby, it is possible to determine the manufacture numbering for moving the handrail elevator that handrail is diagnosed deterioration based on detection signal.
Fig. 5 and Fig. 6 show that position determines other examples of mark.
In Fig. 5 and Fig. 6, generally rectangular position determines the width that the long side direction of mark is mobile handrail.
In above-mentioned example, multiple slit portions are regularly distributed in the direction detected using coil and the width of movement handrail
Spend on direction,.Using be configured with the width of mobile handrail the search coil of multiple (they being 5 in present embodiment) and come
Detect that above-mentioned position determines mark.That is, in the case of mobile handrail is powered, being utilized along five root locus of diagram
Search coil is detected.It can be determined by the use of the multiple detection signal waveforms now obtained and helping as diagnosis object
The related multiple information of the attribute of torch ladder, for example with the position of manufacture numbering and mobile handrail (be the left side of handrail elevator also
It is right side) relevant information.
Herein, the method for determining to mark the deterioration to illustrate to diagnose mobile handrail using above-mentioned position.
Simultaneously storage position determines mark for pre-production, and the manufacture of position determination mark and handrail elevator is numbered and movement is helped
The position (being left side or right side) of hand is accordingly provided with slit portion.
Maintenance personnel determines mark from taken care of position, selects true as the position of the handrail elevator of diagnosis object
Calibration note.
Then, maintenance personnel determines the position selected mark is pasted on the shifting of the handrail elevator as diagnosis object
Handrail is moved, and deterioration diagnosis device for moving handrail main body is arranged near mobile handrail, can be detected from mobile handrail
Interior steel rope or position determine the position of the magnetic flux of mark.
Then, constant speed driving is carried out to the step of handrail elevator, while synchronously mobile handrail is driven with step, made
Deterioration diagnosis device for moving handrail works, to obtain the detection signal of search coil.Now, mobile handrail rounds the above,
The mobile handrail of the ring-type of whole circle is detected.Circling ring numerical example such as observes by the naked eye position and determines that the number of turns of mark comes true
Recognize.Alternatively, it is also possible to by confirm detection signal while, according to obtain position determine mark detection signal number of times come
Confirm the number of turns.
Based on the detection signal obtained, there are not damaged and damage position to diagnose steel rope.Herein, can be by inciting somebody to action
Paste position determines that the position of mark, as reference position, determines the detection signal of mark and obtained from because of damage according to position
Time interval between detection signal and the actuating speed of handrail elevator during diagnosis, move the translational speed of handrail to calculate
The length of the mobile handrail gone out between reference position and damage position, so as to measure damage position.Now, identical inspection can be based on
The detection signal that position in signal determines mark is surveyed, to confirm the position for manufacturing numbering and mobile handrail for the handrail elevator being diagnosed to be
(left side or right side) is put, therefore, it is possible to will reliably detect that data are associated with the handrail elevator and mobile handrail that are diagnosed to be.
In addition, personal computer can also determine the detection data of mark from position when carrying out deterioration diagnosis by data processing
The information related to the position of manufacture numbering and mobile handrail is extracted, accordingly to be stored with detection data.
In present embodiment, slit is set with the pattern corresponding with the attribute information of the handrail elevator of diagnosis object
Portion, but slit portion is not limited to, can be the clearance portion of arbitrary shape.
Alternatively, it is also possible to which the magnetic paper tinsel body that mark is determined as position is embedded in mobile handrail.In addition it is also possible to move
The privileged site of dynamic handrail, the multiple steel ropes being arranged at disconnection portion with defined pattern in mobile handrail are used as gap
Portion, determines to mark as position.From above-mentioned position determines that mark is difficult to the naked eye come from outside, but detection can be passed through
Signal confirms its position.
Thus, if mobile handrail possesses the magnetic with clearance portion in its ad-hoc location, the magnetic can be made
Determine to mark for position.
In addition, in the case where as the present embodiment, being arranged with multiple search coils, if position is determined labeled as at least
The pattern of the detection more than once is carried out using each search coil, then is also capable of detecting when that the exception of each search coil (for example exists
Certain detection time section, search coil does not detect slit etc. one by one, but other search coils detect the feelings of specific pattern
Condition).
In addition, the invention is not limited in above-mentioned embodiment, also comprising various modifications example.For example, for ease of understanding
The present invention, above-mentioned embodiment is described in detail, but is not limited to the entire infrastructure that must possess described above.Separately
Outside, the addition of a part of structure, deletion, replacement other structures that can also be to embodiment.
For example, above-mentioned embodiment is not limited to handrail elevator, passenger's transmission of movable sidewalk etc. is readily applicable to
Band.
Label declaration
1 handrail elevator
2 steps
3 movement handrails
4 railings
5 base portions
6 frameworks
7 drive sprockets
The 8 driven chain gear teeth
9 end teeth
10 chains
11 supporting guide portions
12 deterioration diagnosis device for moving handrail
13 coil portions
14 control units
15 union bodies
16 computer systems
17 connection cables
M, M1, M2 position determine mark
S, S1, S2, S3 slit portion
Claims (7)
1. a kind of deterioration diagnosis device for moving handrail, is detected using magnetic flux transducer and is helped from the movement positioned at passenger conveyor-belt
The magnetic flux of steel rope in hand, the damage of the steel rope is detected based on the magnetic flux detected, it is characterised in that
The magnetic flux from magnetic is detected using the magnetic flux transducer, wherein, the magnetic is arranged at the mobile handrail
And with clearance portion, the clearance portion has the pattern corresponding with the attribute of the passenger conveyor-belt.
2. deterioration diagnosis device for moving handrail as claimed in claim 1, it is characterised in that
The attribute is numbered for manufacture.
3. deterioration diagnosis device for moving handrail as claimed in claim 1, it is characterised in that
The magnetic is the magnetic paper tinsel body on the surface for being arranged at the mobile handrail.
4. deterioration diagnosis device for moving handrail as claimed in claim 3, it is characterised in that
The clearance portion is slit portion.
5. deterioration diagnosis device for moving handrail as claimed in claim 1, it is characterised in that
The magnetic is a part for the steel rope, and the clearance portion is the disconnection portion in a part for the steel rope.
6. a kind of mobile handrail deterioration diagnosis method, based on the magnetic from the steel rope in the mobile handrail of passenger conveyor-belt
It is logical, to detect the damage of the steel rope, it is characterised in that
On the surface of the mobile handrail, the magnetic paper tinsel body with clearance portion is pasted, wherein, the clearance portion has to be multiplied with described
The corresponding pattern of the attribute of objective conveyer belt,
Then, while the mobile handrail is driven, magnetic flux from the magnetic paper tinsel body is detected and from the steel
The magnetic flux of rope.
7. a kind of position determines mark, represent on the mobile handrail when deterioration to the mobile handrail of passenger conveyor-belt is diagnosed
Reference position, it is characterised in that
Possesses the magnetic with clearance portion, the clearance portion has the pattern corresponding with the attribute of the passenger conveyor-belt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-061646 | 2016-03-25 | ||
| JP2016061646A JP2017171485A (en) | 2016-03-25 | 2016-03-25 | Moving handrail deterioration diagnostic device, moving handrail deterioration diagnostic method and position specification mark used for the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107226413A true CN107226413A (en) | 2017-10-03 |
Family
ID=59933078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710159842.5A Pending CN107226413A (en) | 2016-03-25 | 2017-03-17 | Deterioration diagnosis device for moving handrail, mobile handrail deterioration diagnosis method and its position used determine mark |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017171485A (en) |
| CN (1) | CN107226413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10850948B2 (en) | 2018-09-12 | 2020-12-01 | Otis Elevator Company | Escalator with a sensor for detecting sheave misalignment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112672971B (en) * | 2018-09-19 | 2023-07-04 | 三菱电机株式会社 | Movable handrail damage detection device |
| EP3825272B1 (en) * | 2019-11-25 | 2023-07-05 | Otis Elevator Company | Monitoring of moving handrails for passenger conveyors |
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|---|---|---|---|---|
| JPH10218541A (en) * | 1997-02-12 | 1998-08-18 | Hitachi Building Syst Co Ltd | Detecting method of traveling handrail damaged position of passenger conveyor |
| EP0960847A1 (en) * | 1998-05-27 | 1999-12-01 | Inventio Ag | Escalator or moving walkway with handrail monitoring device |
| JP2000118943A (en) * | 1998-10-13 | 2000-04-25 | Hitachi Building Systems Co Ltd | Method for judging degradation of handrail connection part for passenger conveyor |
| JP2001004597A (en) * | 1999-06-25 | 2001-01-12 | Hitachi Building Systems Co Ltd | Damage-detecting device of handrail for passenger conveyor |
| JP2003040571A (en) * | 2001-07-26 | 2003-02-13 | Mitsubishi Electric Building Techno Service Co Ltd | Moving handrail monitoring device for escalator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009173364A (en) * | 2008-01-22 | 2009-08-06 | Toshiba Elevator Co Ltd | Failure diagnostic system of passenger conveyer |
| JP6191288B2 (en) * | 2013-07-08 | 2017-09-06 | 株式会社リコー | Information provision system |
| WO2015159392A1 (en) * | 2014-04-16 | 2015-10-22 | 三菱電機株式会社 | Elevator position detection device |
| DE112014006686B4 (en) * | 2014-05-21 | 2020-04-16 | Mitsubishi Electric Corp. | Elevator position detection device |
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2016
- 2016-03-25 JP JP2016061646A patent/JP2017171485A/en active Pending
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218541A (en) * | 1997-02-12 | 1998-08-18 | Hitachi Building Syst Co Ltd | Detecting method of traveling handrail damaged position of passenger conveyor |
| EP0960847A1 (en) * | 1998-05-27 | 1999-12-01 | Inventio Ag | Escalator or moving walkway with handrail monitoring device |
| JP2000118943A (en) * | 1998-10-13 | 2000-04-25 | Hitachi Building Systems Co Ltd | Method for judging degradation of handrail connection part for passenger conveyor |
| JP2001004597A (en) * | 1999-06-25 | 2001-01-12 | Hitachi Building Systems Co Ltd | Damage-detecting device of handrail for passenger conveyor |
| JP2003040571A (en) * | 2001-07-26 | 2003-02-13 | Mitsubishi Electric Building Techno Service Co Ltd | Moving handrail monitoring device for escalator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10850948B2 (en) | 2018-09-12 | 2020-12-01 | Otis Elevator Company | Escalator with a sensor for detecting sheave misalignment |
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| Publication number | Publication date |
|---|---|
| JP2017171485A (en) | 2017-09-28 |
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Application publication date: 20171003 |