JPH09278340A - Handrail cleaning device for passenger conveyor - Google Patents

Handrail cleaning device for passenger conveyor

Info

Publication number
JPH09278340A
JPH09278340A JP8376396A JP8376396A JPH09278340A JP H09278340 A JPH09278340 A JP H09278340A JP 8376396 A JP8376396 A JP 8376396A JP 8376396 A JP8376396 A JP 8376396A JP H09278340 A JPH09278340 A JP H09278340A
Authority
JP
Japan
Prior art keywords
cleaning
handrail
moving handrail
roller
passenger conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8376396A
Other languages
Japanese (ja)
Inventor
Toshiyuki Takahashi
敏幸 高橋
Original Assignee
Mitsubishi Denki Bill Techno Service Kk
三菱電機ビルテクノサービス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Bill Techno Service Kk, 三菱電機ビルテクノサービス株式会社 filed Critical Mitsubishi Denki Bill Techno Service Kk
Priority to JP8376396A priority Critical patent/JPH09278340A/en
Publication of JPH09278340A publication Critical patent/JPH09278340A/en
Pending legal-status Critical Current

Links

Abstract

(57) An object of the present invention is to prevent a moving handrail from being damaged by excessive cleaning, to prevent an increase in running resistance, and to prevent a pressure mark from remaining on the moving handrail. It is intended. SOLUTION: A cleaning roller 13 is provided so as to face the surface of the moving handrail 1 at a predetermined interval, and at the time of cleaning, the movable handrail 1 is pressed from the back surface by a movable roller 17 so that the surface of the moving handrail 1 is cleaned. To contact with.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail cleaning device for a passenger conveyor for cleaning a moving handrail on an escalator or a moving walkway.

[0002]

2. Description of the Related Art FIG.
The block diagram which shows the conventional handrail cleaning device shown by the 6th publication,
FIG. 15 is a right side view of FIG. In the figure, 1 is a moving handrail made of rubber or the like, 2 is a friction roller which is in contact with the back surface of the moving handrail 1 so as to be rotated by the movement of the moving handrail 1, and 3 is constantly pressing the moving handrail 1 against the friction roller 2. The pressing rollers 4 are arranged on the front surface side of the moving handrail 1, and the brush rollers 5 clean the surface of the moving handrail 1 by rotation, and the reference numeral 5 is a belt for transmitting the rotation of the friction roller 2 to the brush roller 4.

Next, the operation will be described. When, for example, the moving handrail 1 moves to the right in the figure while the escalator is operating, the friction roller 2 contacting this rotates in the counterclockwise direction in the figure, and the rotation is transmitted to the brush roller 4 via the belt 5. . As a result, the brush roller 4 rotates counterclockwise in the figure, and the surface of the moving handrail 1 is cleaned.

[0004]

In the conventional handrail cleaning device constructed as described above, since the brush row 4 is constantly rotating during the operation of the escalator, the surface of the moving handrail 1 is scratched over time. There is a risk of sticking. Further, since the brush roller 4 rotates in the direction opposite to the moving direction of the moving handrail 1, the running resistance of the moving handrail 1 is increased. Further, since the moving handrail 1 is continuously pressed by the pressing roller 3 even while the escalator is stopped, there is a problem that the impression trace of the pressing roller 3 remains on the surface of the moving handrail 1.

The present invention has been made to solve the above problems, and it is possible to prevent the moving handrail from being scratched by excessive cleaning, and to increase the running resistance. An object of the present invention is to obtain a handrail cleaning device for a passenger conveyor, which can be prevented and further can prevent the impression traces from being left on the moving handrail.

[0006]

According to a first aspect of the present invention, there is provided a handrail cleaning device for a passenger conveyor, wherein a rotatable cleaning roller is provided so as to face the front surface of the moving handrail, and reciprocates to the back side of the moving handrail. And a movable roller which is movably and rotatably provided and presses the back surface of the moving handrail to move the moving handrail to the cleaning roller side to press the surface of the moving handrail against the cleaning roller.

A handrail cleaning device for a passenger conveyor according to a second aspect of the present invention comprises a cleaning position detecting switch for detecting the position of the movable roller during cleaning.

A handrail cleaning device for a passenger conveyor according to a third aspect of the present invention includes a motor for rotating the cleaning roller independently of the movement of the moving handrail, and the cleaning roller moving in the same direction as the moving handrail. It is designed to rotate faster than.

A handrail cleaning device for a passenger conveyor according to a fourth aspect of the present invention is provided so as to face the surface of the moving handrail, and the moving handrail is pressed during cleaning to apply a protective agent to the surface of the moving handrail. It is equipped with a vessel.

In the handrail cleaning device for a passenger conveyor according to a fifth aspect of the present invention, the cleaning roller is supported via a spring so as to be capable of reciprocating in a direction toward and away from the moving handrail.

According to a sixth aspect of the present invention, there is provided a handrail cleaning device for a passenger conveyor, and a dirt detection sensor for quantitatively detecting dirt on the moving handrail, and the operation of the movable roller and the cleaning roller according to information from the dirt detection sensor. And a control unit for controlling.

According to a seventh aspect of the present invention, there is provided a handrail cleaning device for a passenger conveyor, which is provided near a cleaning roller and has a cleaner for sucking and removing scattered dirt.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1. 1 is a configuration diagram showing a handrail cleaning device according to Embodiment 1 of the present invention, and FIG. 2 is a left side view of FIG.

In the figure, 11 is an existing drive roller for moving the moving handrail 1 by contacting the back surface of the moving handrail 1, 12
Is a pulley which rotates integrally with the drive roller 11, 13 is a cleaning roller which faces the surface of the moving handrail 1 at a predetermined interval, and the cleaning roller 13 is made of metal as shown in FIG. A cylindrical core 13a and a cleaning band 13 made of, for example, felt provided on the outer peripheral portion of the core 13a.
b. Reference numeral 14 is a pulley that rotates integrally with the cleaning roller 13, and 15 is a belt that is provided between the pulleys 12 and 14 to transmit the rotation.

Reference numeral 16 denotes a small hydraulic jack fixed so as to face the back surface of the moving handrail 1, and reference numeral 17 denotes a rotatable movable roller provided at the tip of a cylinder 16a of the hydraulic jack 16. The roller 17 is reciprocally moved by the hydraulic jack 16 in a direction toward and away from the moving handrail 1. A pump 18 is connected to the hydraulic jack 16 via a pipe 19.

In the device constructed as described above,
During normal operation, since the cleaning roller 13 and the movable roller 17 are separated from the moving handrail 1, even if the cleaning roller 13 is rotating, the moving handrail 1 is not cleaned. When a worker operates a cleaning command switch (not shown) in this state, the hydraulic jack 16 moves the movable roller 17 toward the moving handrail 1 by a predetermined amount. As a result, the moving handrail 1
Is moved, and the surface of the moving handrail 1 is pressed against the cleaning roller 13 as shown in FIG. At this time, since the cleaning roller 13 is rotating in the direction opposite to the moving direction of the moving handrail 1, the cleaning roller 13 cleans the surface of the moving handrail 1. After the work, by operating the cleaning command switch again, the movable roller 17 returns to the original position,
The cleaning roller 13 and the movable roller 17 are separated from the moving handrail 1.

According to such an apparatus, since the cleaning roller 13 is separated from the moving handrail 1 unless the operator operates the switch, the moving handrail 1 is not damaged by excessive cleaning, and the traveling handrail 1 can be moved. The increase in resistance is also minimized. Further, normally, the cleaning roller 13 and the movable roller 17
Is separated from the moving handrail 1, it is possible to prevent the impression mark from remaining on the moving handrail 1.

Although the cleaning roller 13 made of felt is shown in the above example, a roller made of other material such as a brush roller may be used as the cleaning roller if it is separated from the moving handrail 1 at normal times. . The drive source of the movable roller 17 is not limited to the hydraulic jack 16 and may be an electric motor or the like.

Embodiment 2. Next, FIG. 5 is a side view showing a handrail cleaning device according to a second embodiment of the present invention. In the figure, 21 is a cleaning roller having an outer peripheral surface formed along the surface of the moving handrail 1, and 22 is a movable roller 17.
A return position detection switch for detecting the return position of the movable roller 1, 23 reciprocates together with the movable roller 17 to move the movable roller 1 during cleaning.
The cleaning position detecting switch for detecting the position of 7 and the operating metal fitting 24 for operating the cleaning position detecting switch 23. Other configurations are the same as those in the first embodiment.

In such an apparatus, since the cleaning roller 21 having an outer peripheral shape that conforms to the shape of the moving handrail 1 is used, the cleaning area can be expanded to the bent portion of the moving handrail 1 and the cleaning efficiency can be improved. . Further, since the operating range of the reciprocating movable roller 17 is regulated by the switches 22 and 23, the reliability is improved and the pressing force can be appropriately adjusted.

Embodiment 3 Next, FIG. 6 is a configuration diagram showing a handrail cleaning device according to a third embodiment of the present invention. In the figure, 25 is a motor for rotating the cleaning roller 13, and 26 is a belt for transmitting the driving force of the motor to the cleaning roller 13.

In the first embodiment, the cleaning roller 13 is rotated in the direction opposite to the moving direction of the moving handrail 1. However, in this example, since the motor 25 which is an independent drive source is provided, the cleaning roller 13 is moved. 1 can be rotated faster than the moving handrail 1 in the same direction as the moving handrail 1. This allows
It is possible to more reliably prevent the traveling resistance of the moving handrail 1 from increasing.

Embodiment 4 Next, FIG. 7 is a configuration diagram showing a handrail cleaning device according to a fourth embodiment of the present invention. In this example, two cleaning rollers 13 are rotated by one motor 25. Further, two application rollers 27 for applying a surface protective agent to the surface of the moving handrail 1 are arranged so as to face the surface of the moving handrail 1. Coating roller 27
As shown in FIG.
It is connected to the. The lower part of the application roller 27 is immersed in the protective agent in the protective agent receiver 30. The coating roller 27, the belt 28, the motor 29, and the protective agent receiver 30 constitute a protective agent applicator 31.

According to such an apparatus, since two cleaning rollers 13 that are driven simultaneously are provided, the cleaning efficiency can be improved. In addition, since the protective agent can be applied to the surface of the moving handrail 1 by the protective agent applicator 31 during cleaning, the surface of the moving handrail 1 can be prevented from becoming dirty.

Embodiment 5 FIG. Next, FIG. 9 is a configuration diagram showing a handrail cleaning device according to a fifth embodiment of the present invention. In the figure, 32 is fixed to the fixed part of the escalator,
A fixed support member that supports the cleaning roller 13, 33 is a cylindrical movable support member that can move up and down with respect to the fixed support member 32, 34
Is provided between the fixed support member 32 and the movable support member 33,
A spring for urging the movable support member 33 upward, that is, the side of the moving handrail 1, and a detection switch 35 for detecting the downward movement limit of the cleaning roller 13.

In such an apparatus, since the cleaning roller 13 can move up and down within a certain range, the unevenness of the surface of the moving handrail 1 is absorbed and the cleaning roller 13 is always brought into close contact with the surface of the moving handrail 1. The cleaning unevenness can be eliminated. Further, if the cleaning roller 13 falls too much, the tension of the belt 26 changes too much. Therefore, the lower limit of the cleaning roller 13 is detected by the detection switch 35, and when the detection switch 35 operates, the pressing force of the movable roller 17 is released. .

Embodiment 6 FIG. Next, FIG. 10 is a configuration diagram showing a handrail cleaning device according to a sixth embodiment of the present invention.
In this example, a protective agent applicator 31 similar to that shown in FIG. 8 is provided, and a pump 36 is connected to the protective agent applicator 31. A protective agent is stored in the pump 36, and the protective agent is supplied to the protective agent applicator 31 at regular intervals by a timer or the like while the protective agent applicator 31 is operating. Thereby, the protective agent can be stably applied to the moving handrail 1 for a long time.

Embodiment 7 11 is a block diagram showing a handrail cleaning device according to a seventh embodiment of the present invention. In this example, in addition to the two cleaning rollers 13, a protective agent applicator 31
Are provided, and two movable rollers 17 are provided at a predetermined interval from each other in order to press the moving handrail 1 against them in a well-balanced manner. In this way, the cleaning roller 1 is changed by changing the number and positions of the movable rollers 17 according to the number and positions of the cleaning roller 13 and the protective agent applicator 31.
The moving handrail 1 can be pressed against the protective sheet 3 and the protective agent applicator 31 in a well-balanced manner.

Embodiment 8 Next, FIG. 12 is a configuration diagram showing a handrail cleaning device according to an eighth embodiment of the present invention.
In the figure, 37 is a pair of dirt sensors (optical sensors) which are provided so as to face the surface of the moving handrail 1 and quantitatively detect dirt on the surface of the moving handrail 1.
Outputs a dirt detection signal when it detects dirt that is equal to or greater than the set value. A control unit 38 receives the dirt detection signal and outputs a cleaning command signal.

According to such a device, since the dirt on the moving handrail 1 can be monitored and automatically cleaned when necessary, the cleaning state of the moving handrail 1 can be easily maintained constant. In addition, it is possible to easily perform the control of starting the cleaning device by an operator and automatically stopping the cleaning device when the dirt becomes equal to or less than the set value.

Embodiment 9 13 is a block diagram showing a handrail cleaning device according to a ninth embodiment of the present invention. In this example, a cleaner 39 is provided near the cleaning roller 13. As a result, the powdery dirt scattered during cleaning can be sucked and removed by the cleaner 39, and the dirt can be prevented from reattaching to peripheral equipment.

[0032]

As described above, in the handrail cleaning device for a passenger conveyor according to the invention of claim 1, the cleaning roller is provided so as to face the surface of the moving handrail, and the movable handrail is pressed from the backside by the movable roller during cleaning. Since the surface of the moving handrail comes into contact with the cleaning roller, damage to the moving handrail due to excessive cleaning can be prevented, and the increase in running resistance can be minimized. It is possible to prevent the residue from remaining.

Since the handrail cleaning device for a passenger conveyor according to the second aspect of the present invention is provided with the cleaning position detecting switch for detecting the position of the movable roller at the time of cleaning, the pressing force against the moving handrail can be appropriately adjusted.

The handrail cleaning device for a passenger conveyor according to a third aspect of the present invention is provided with a motor for rotating the cleaning roller independently of the movement of the moving handrail, and the cleaning roller moves in the same direction as the moving handrail. Since it is rotated faster, it is possible to more reliably prevent the traveling resistance of the moving handrail from increasing.

Since the handrail cleaning device for the passenger conveyor according to the invention of claim 4 is provided with the protective agent applicator, the moving handrail can be protected at the same time as the cleaning.

In the handrail cleaning device for a passenger conveyor according to a fifth aspect of the present invention, the cleaning roller is supported by a spring so as to reciprocate in the direction toward and away from the moving handrail. On the other hand, the cleaning roller can be pressed stably, and uneven cleaning can be prevented.

In the handrail cleaning device for a passenger conveyor according to the sixth aspect of the present invention, the dirt of the moving handrail is quantitatively detected by the dirt sensor, and the operations of the movable roller and the cleaning roller are controlled according to the information. The cleaning operation can be performed efficiently and easily.

In the handrail cleaning device for a passenger conveyor according to the seventh aspect of the present invention, since the cleaner for sucking and removing the scattered dirt is provided, it is possible to prevent the dirt from adhering to peripheral equipment.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a handrail cleaning device according to a first embodiment of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a side view showing the operating state of FIG.

FIG. 4 is an enlarged perspective view showing the cleaning roller of FIG. 1.

FIG. 5 is a side view showing an apparatus according to Embodiment 2 of the present invention.

FIG. 6 is a configuration diagram showing an apparatus according to Embodiment 3 of the present invention.

FIG. 7 is a configuration diagram showing an apparatus according to Embodiment 4 of the present invention.

8 is a configuration diagram showing the protective agent applicator of FIG. 7. FIG.

FIG. 9 is a configuration diagram showing an apparatus according to Embodiment 5 of the present invention.

FIG. 10 is a configuration diagram showing an apparatus according to Embodiment 6 of the present invention.

FIG. 11 is a configuration diagram showing an apparatus according to Embodiment 7 of the present invention.

FIG. 12 is a configuration diagram showing an apparatus according to Embodiment 8 of the present invention.

FIG. 13 is a configuration diagram showing an apparatus according to Embodiment 9 of the present invention.

FIG. 14 is a configuration diagram showing an example of a conventional handrail cleaning device.

FIG. 15 is a right side view of FIG.

[Explanation of symbols]

1 moving handrail, 13 cleaning roller, 17 movable roller,
23 cleaning position detection switch, 25 motor, 31 protective agent applicator, 34 spring, 37 dirt detection sensor, 38
Control, 39 cleaners.

Claims (7)

[Claims]
1. A rotatable cleaning roller provided to face the surface of the moving handrail, and a reciprocating and rotatably provided on the back surface side of the moving handrail to press the back surface of the moving handrail. A handrail cleaning device for a passenger conveyor, comprising: a movable roller that presses the surface of the moving handrail against the cleaning roller by moving the moving handrail to the cleaning roller side.
2. A cleaning position detection switch for detecting the position of the movable roller at the time of cleaning is provided.
Handrail cleaning device for the passenger conveyor described.
3. A motor for rotating the cleaning roller independently of the movement of the moving handrail, wherein the cleaning roller is rotated in the same direction as the moving handrail faster than the moving handrail. The handrail cleaning device for a passenger conveyor according to claim 1, wherein the handrail cleaning device is provided.
4. A protective agent applicator which is provided so as to face the surface of the moving handrail and which is pressed against the moving handrail during cleaning to apply a protective agent to the surface of the moving handrail. The handrail cleaning device for a passenger conveyor according to any one of claims 1 to 3.
5. The passenger conveyor according to claim 1, wherein the cleaning roller is supported by a spring so as to be capable of reciprocating in a direction toward and away from the moving handrail. Handrail cleaning device.
6. A dirt detection sensor for quantitatively detecting dirt on the moving handrail, and a control unit for controlling the operation of the movable roller and the cleaning roller according to information from the dirt detection sensor. The handrail cleaning device for a passenger conveyor according to any one of claims 1 to 5.
7. The handrail cleaning device for a passenger conveyor according to claim 1, further comprising a cleaner that is provided in the vicinity of the cleaning roller and that sucks and removes scattered dirt.
JP8376396A 1996-04-05 1996-04-05 Handrail cleaning device for passenger conveyor Pending JPH09278340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8376396A JPH09278340A (en) 1996-04-05 1996-04-05 Handrail cleaning device for passenger conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8376396A JPH09278340A (en) 1996-04-05 1996-04-05 Handrail cleaning device for passenger conveyor

Publications (1)

Publication Number Publication Date
JPH09278340A true JPH09278340A (en) 1997-10-28

Family

ID=13811627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8376396A Pending JPH09278340A (en) 1996-04-05 1996-04-05 Handrail cleaning device for passenger conveyor

Country Status (1)

Country Link
JP (1) JPH09278340A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006059364A1 (en) * 2004-11-30 2006-06-08 Mitsubishi Denki Kabushiki Kaisha Device and method for repairing moving handrail of passenger conveyor
JP2008063103A (en) * 2006-09-08 2008-03-21 Miyawaki Sharyo Kogyo Kk Cleaning device for moving handrail of passenger conveyor
KR100824500B1 (en) * 2006-08-11 2008-04-22 미쓰비시덴키 가부시키가이샤 Device and method for repairing moving handrail of passenger conveyor
JP2011219244A (en) * 2010-04-13 2011-11-04 Hitachi Building Systems Co Ltd Deterioration diagnostic device for moving handrail of passenger conveyor
JP2012197154A (en) * 2011-03-22 2012-10-18 Hitachi Ltd Plasma sterilization and cleaning treatment device for escalator, and escalator using the same
CN105013747A (en) * 2015-08-14 2015-11-04 宁波市江东逐新贸易有限公司 Outdoor steel structural member cleaning maintenance device with exhaust fan
CN105013745A (en) * 2015-08-14 2015-11-04 方倩 Cleaning maintenance device for outdoor steel structural component internally provided with LED lamp
CN105057255A (en) * 2015-08-14 2015-11-18 宁波市江东逐新贸易有限公司 Cleaning and maintaining device with flexible dust cover and guide rods for outdoor steel structural assembly
CN105080885A (en) * 2015-08-14 2015-11-25 厦门市优家品日用品有限公司 Cleaning and maintaining device with left and right limiting sensors and used for outdoor steel structural member
CN105080881A (en) * 2015-08-14 2015-11-25 方倩 Noise-reducing cleaning and maintaining device provided with pressurizing device and used for outdoor steel structural component
CN105107773A (en) * 2015-08-14 2015-12-02 方倩 Cleaning and maintaining device for outdoor steel structural component provided with LED lamp and powered up through solar energy
CN105107774A (en) * 2015-08-14 2015-12-02 宁波市江东逐新贸易有限公司 Cleaning maintenance device of outdoor steel structural part with solar power generation and power supply
CN105155863A (en) * 2015-08-14 2015-12-16 林江梅 Adjustable-speed cleaning maintenance device for outdoor steel structures
JP6453425B1 (en) * 2017-11-15 2019-01-16 東芝エレベータ株式会社 Passenger conveyor

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006059364A1 (en) * 2004-11-30 2006-06-08 Mitsubishi Denki Kabushiki Kaisha Device and method for repairing moving handrail of passenger conveyor
JPWO2006059364A1 (en) * 2004-11-30 2008-06-05 三菱電機株式会社 Moving handrail repair device and moving handrail repair method for passenger conveyor
US7389866B2 (en) 2004-11-30 2008-06-24 Mitsubishi Denki Kabushiki Kaisha Device and method for repairing moving handrail of passenger conveyor
JP4739232B2 (en) * 2004-11-30 2011-08-03 三菱電機株式会社 Moving handrail repair device for passenger conveyor
KR100824500B1 (en) * 2006-08-11 2008-04-22 미쓰비시덴키 가부시키가이샤 Device and method for repairing moving handrail of passenger conveyor
JP2008063103A (en) * 2006-09-08 2008-03-21 Miyawaki Sharyo Kogyo Kk Cleaning device for moving handrail of passenger conveyor
JP2011219244A (en) * 2010-04-13 2011-11-04 Hitachi Building Systems Co Ltd Deterioration diagnostic device for moving handrail of passenger conveyor
JP2012197154A (en) * 2011-03-22 2012-10-18 Hitachi Ltd Plasma sterilization and cleaning treatment device for escalator, and escalator using the same
US9034270B2 (en) 2011-03-22 2015-05-19 Hitachi, Ltd. Plasma sterilization and cleaning treatment device for escalator, and escalator using the same
CN105013747A (en) * 2015-08-14 2015-11-04 宁波市江东逐新贸易有限公司 Outdoor steel structural member cleaning maintenance device with exhaust fan
CN105013745A (en) * 2015-08-14 2015-11-04 方倩 Cleaning maintenance device for outdoor steel structural component internally provided with LED lamp
CN105057255A (en) * 2015-08-14 2015-11-18 宁波市江东逐新贸易有限公司 Cleaning and maintaining device with flexible dust cover and guide rods for outdoor steel structural assembly
CN105080885A (en) * 2015-08-14 2015-11-25 厦门市优家品日用品有限公司 Cleaning and maintaining device with left and right limiting sensors and used for outdoor steel structural member
CN105080881A (en) * 2015-08-14 2015-11-25 方倩 Noise-reducing cleaning and maintaining device provided with pressurizing device and used for outdoor steel structural component
CN105107773A (en) * 2015-08-14 2015-12-02 方倩 Cleaning and maintaining device for outdoor steel structural component provided with LED lamp and powered up through solar energy
CN105107774A (en) * 2015-08-14 2015-12-02 宁波市江东逐新贸易有限公司 Cleaning maintenance device of outdoor steel structural part with solar power generation and power supply
CN105155863A (en) * 2015-08-14 2015-12-16 林江梅 Adjustable-speed cleaning maintenance device for outdoor steel structures
JP6453425B1 (en) * 2017-11-15 2019-01-16 東芝エレベータ株式会社 Passenger conveyor

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