JP2000335866A - Maintenance work device for passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct maintenance work for plural lighting systems provided above a passenger conveyor in a short time and safely. SOLUTION: In this maintenance work device for a passenger conveyor comprising a maintenance work scaffold 15 placed and fixed on steps 13 in executing maintenance work for plural lighting systems positioned above the passenger conveyor and disposed along the moving direction of the steps 14, a low speed operation device 16 to control a drive 8 to move the steps 13 at low speed, a remote control device (comprising a transmitter 18, a receiver 17, and a drive control device 9) to control actuation of the low speed operation device 16 on the maintenance work scaffold 15, and a stop switch 19 to stop move of the steps 13 by the low speed operation device 16 when the maintenance work scaffold 15 reaches a specified distance from a landing port by actuation of the low speed operation device 16 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance device for a passenger conveyor suitable for performing a maintenance operation of an illuminating device disposed above a passenger conveyor such as an escalator and a moving sidewalk.

[0002]

2. Description of the Related Art Conventionally, an illuminating device such as a fluorescent lamp is provided above a passenger conveyor such as an escalator and a moving sidewalk. The illuminating device is used for maintenance work such as cleaning, inspection, repair, and part replacement. Needed to provide a maintenance platform such as a stepladder on the tread of the passenger conveyor.

[0003] In particular, in a structure in which another escalator is installed above the escalator, the gap between the escalators above and below the escalator may be about 8 m. When performing the maintenance work of the provided lighting device, a maintenance work scaffold consisting of a stepladder or the like for working at a high place was required.

[0004] Generally, a plurality of lighting devices provided above a passenger conveyor such as an escalator are provided along the moving direction of the steps of the passenger conveyor. Therefore, in order to perform maintenance work on a plurality of lighting devices, it was necessary to move the maintenance work scaffold in the moving direction of the steps of the passenger conveyor.

[0005]

In order to move the maintenance work scaffold consisting of a stepladder or the like in the above-mentioned conventional example, every time a maintenance worker on the maintenance work scaffold moves the maintenance work scaffold, the maintenance work scaffold is moved to the maintenance work scaffold. There was a problem in that getting on and off the vehicle required a long working time.

Accordingly, the maintenance of the passenger conveyor, in which the maintenance worker moves the maintenance work scaffold to an optimal position for performing the maintenance work of the lighting device by operating the passenger conveyor at a low speed while staying on the maintenance work scaffold. Working devices have been developed.

[0007] However, when the passenger conveyor is operated at a low speed to move the maintenance work scaffold, the maintenance work scaffold may be erroneously climbed on the floor of the entrance of the passenger conveyor and the maintenance work scaffold may fall. There was a problem that there is.

It is an object of the present invention to provide a passenger conveyor maintenance device capable of solving the above problems with a simple configuration and shortening the maintenance time of the lighting device.

[0009]

The object of the present invention is to provide a vehicle having a plurality of steps which are disposed between entrances and exits and connected endlessly.
A passenger conveyor including at least a driving device for driving these steps, which is located above the passenger conveyor and is provided with a plurality of lighting devices arranged along the moving direction of the steps. A maintenance work device for a passenger conveyor having a maintenance work scaffold placed and fixed on the tread surface of the step when performing the work, a low-speed operation device that controls the drive unit to move the step at a low speed, and a low-speed operation device A remote control device for controlling operation on the maintenance work scaffold, a stop switch for stopping movement of the step by the low-speed operation device when the maintenance work scaffold approaches a predetermined distance to the entrance by operation of the low-speed operation device; This is achieved by providing

With this configuration, when the maintenance work scaffold approaches the entrance, the stop switch is activated to stop the movement of the steps, so that the maintenance work scaffold can be prevented from climbing on the floor of the entrance. In addition, by operating the remote control device while standing on the maintenance work scaffold, the maintenance work scaffold can be moved to the optimal position for performing maintenance work on the lighting device. Since there is no need to get on and off many times,
It can be performed smoothly and safely.

[0011]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the escalator 1 has an upper horizontal frame 1A, a lower horizontal frame 1B, and an intermediate inclined frame 1C. Then, the escalator 1 is wound around the driving sprocket 2 disposed in the upper horizontal frame 1A, the idle sprocket 3 disposed in the lower horizontal frame 1B, and the driving sprocket 2 and the idle procket 3. A step chain 5 provided with a large number of front wheel roller shafts 4, a drive unit 8 connected to the drive sprocket 2 via a drive chain 6 and a speed reducer 7, and a drive control device 9 for controlling the drive. A brake 10 installed between the drive unit 8 and the speed reducer 7, a guide rail 11 for guiding the step chain 5, a front wheel roller 12 running on the guide rail 11 supported by the front wheel roller shaft 4, A step 13 attached to each of the large number of front wheel roller shafts 4.

Above the escalator 1, a plurality of lighting devices 14, 14 A, 14 B are arranged in a straight line along the moving direction of the steps 13. Lighting devices 14, 14A,
14B is a fluorescent lamp. Lighting devices 14, 14
In order to perform the maintenance work of A and 14B, the maintenance work scaffold 15 is placed and fixed on the tread of the step 13, and the low-speed operation device 16 and the receiver 17 are installed on the upper horizontal frame portion 1A side. 18 is carried by maintenance personnel.

The low-speed operation device 16 is connected to the drive control device 9 and the driving device 8 by a power cable. When the transmitter 18 is operated to transmit an operation signal, the operation signal is received by the receiver 17 and input to the drive control device 9. When an operation signal is input to the drive control device 9, the driving device 8 is controlled by the low-speed operation device 16 according to the operation signal, and the step 1
3 run at about 1 m / min. The low-speed operation device 16 has a function that enables the step 13 to be moved little by little.

The escalator 1 is provided with a stop switch 19 for stopping the movement of the step 13 when the maintenance work scaffold 15 approaches the entrance of the escalator 1 by moving the step 13. The stop switch 19 has a function of opening the low-speed operation device 16 and stopping the movement of the step 13 so that the maintenance work scaffold 15 does not contact the comb plate 21 provided on the comb plate 20 at the entrance of the escalator 1. And, for example, a limit switch. As shown in FIG. 2, the stop switch 19 is fixed on the steps 13A and 13B in the moving direction ahead of the step 13 to which the maintenance work scaffold 15 is fixed, and the contact switch lever 19A of the stop switch 19 is connected to the comb plate 21.
, The low-speed operation device 16 is connected to the drive control device 9.
And from the drive unit 8.

In the above embodiment, the transmitter 18 and the receiver 1
A remote control device is configured by the drive control device 7 and the drive control device 9, and the low-speed operation device 16 can be started and stopped by operating a transmitter 18 on the maintenance work platform 15 by a maintenance person. It is.

In the above configuration, the lighting devices 14, 14
In order to perform the maintenance work of A and 14B, the maintenance work scaffold 15 is mounted and fixed on the tread of the step 13, and the step 13 in the moving direction ahead of the step 13 to which the maintenance work scaffold 15 is fixed.
A, a stop switch 19 is mounted on 13B, and the low-speed operation device 16 and the receiver 17 are connected to the drive control device 9.
Connect to Thereafter, when the maintenance staff operates the transmitter 18 while standing on the maintenance work scaffold 15, the receiver 17 receives the operation signal from the transmitter 18 and the drive controller 9 responds to the operation signal by the low speed. Since the command is output to the driving device 16, the low-speed driving device 16 operates appropriately.

When the low-speed operation device 16 operates, the steps 13
Moves at low speed. Therefore, the maintenance worker can step on the maintenance work scaffold 15 on the step 1 while riding on the maintenance work scaffold 15.
3 in the moving direction of the plurality of lighting devices 14, 14
Both A and 14B can be positioned in an optimal state for performing maintenance work.

According to the above embodiment, the following advantages can be obtained.

(1) A plurality of lighting devices 14, 14A, 1
Even if there is a 4B, the maintenance work is performed by moving the step 13 at a low speed by operating the transmitter 18 carried by the maintenance person who has been on the maintenance work scaffold 15 without the maintenance person getting on and off the maintenance work scaffold 15. Since the scaffold 15 can be moved to a desired position, maintenance work time is reduced,
Fluorescent lamp replacement work of the lighting devices 14, 14A, 14B can be performed safely and smoothly.

(2) While the maintenance staff on the maintenance work scaffold 15 is on the steps 13 on which the maintenance work scaffold 15 is mounted and fixed, the maintenance staff operates the transmitter 18 to move the maintenance work scaffold 15 into and out of the entrance. Even when the maintenance work scaffold 15 approaches the comb plate 21 even if the maintenance work scaffold 15 approaches the comb plate 20, the stop switch 19
The contact switching lever 19a of FIG. 4 comes into contact with the comb plate 21, the low-speed operation device 16 is released from the drive control device 9 and the driving machine 8, and the movement of the step 13 is stopped. It does not run on the plate 20 and is safe.

In the above embodiment, an example is described in which the maintenance work device is installed on the escalator. However, the present invention is not limited to this, and can be applied to a moving walkway. The stop switch 19 is provided on the steps 13A and 13B, but is not limited thereto. The stop switch 19 may be provided on the maintenance work scaffold 15 itself, or may be provided on the comb plate 21 and the comb plate 20 side. Is also good.

[0023]

As described above, according to the present invention, it is possible to safely move the maintenance work scaffold while the maintenance worker is on the maintenance work scaffold. A maintenance work device for a passenger conveyor has been obtained that can perform maintenance work for individual lighting devices in a short time and safely.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a passenger conveyor maintenance work device of the present invention.

FIG. 2 is an operation schematic diagram of a stop switch provided in the maintenance work device of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Escalator 2 Drive sprocket 3 Eyeless proke 4 Front wheel roller shaft 5 Step chain 6 Drive chain 7 Reduction gear 8 Drive 9 Drive control device 10 Brake 11 Guide rail 12 Front wheel roller 13, 13A, 13B Step 14, 14A, 14B Lighting device 15 Maintenance work scaffold 16 Low-speed operation device 17 Receiver 18 Transmitter 19 Stop switch 19A Contact switching lever 20 Comb plate 21 Comb plate

Claims (3)

[Claims] 1. A passenger conveyor comprising at least a plurality of steps arranged endlessly and connected endlessly, and a driving device for driving these steps,
A passenger having a maintenance work scaffold placed and fixed on the tread of the step when performing the maintenance work of the lighting device which is located above the passenger conveyor and arranged along the moving direction of the step. In a conveyor maintenance work device, a low-speed operation device that controls the driving device to move the steps at a low speed, a remote control device that controls the operation of the low-speed operation device on the maintenance work platform, and a low-speed operation device A stop switch for stopping movement of the step by the low-speed operation device when the scaffold approaches a predetermined distance from the entrance by operation. 2. The maintenance work for a passenger conveyor according to claim 1, wherein the predetermined distance is a distance that does not allow the maintenance work scaffold to come into contact with a comb plate of a comb plate provided at the entrance. apparatus. 3. A switch according to claim 1, wherein said switch is a limit switch which is provided on a tread of said step and which opens said low-speed operation device when it comes into contact with a comb plate of a comb plate provided at said entrance. The maintenance work device for a passenger conveyor according to claim 1, wherein: