JPH11322249A - Maintenance and inspection of passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a maintenance and inspection of a passenger conveyor which can minimize downtime necessary for the maintenance and inspection of respective apparatuses comprising the passenger conveyor. SOLUTION: Detected data meeting the conditions of respective apparatuses comprising a passenger conveyor 1 is compared with prescribed apparatus basic data by a determining means 8a, and based on the comparison results of the detected data and the basic data, the maintenance and inspection of the passenger conveyor 1 is carried out. Degradation level data indicating the level of at least either of the degradation or abrasion to respective apparatuses is contained in the apparatus basic data, therefore, it is grasped automatically whether at least either of degradation or abrasion occurs at the respective apparatuses. It is thus possible to eliminate necessity of stopping and inspecting the passenger conveyor 1 by a maintenance person regularly in the same way as a traditional one, and conduct preventive diagnosis preventing the failure of respective apparatuses, resulting from abrasion or degradation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for maintaining and inspecting a passenger conveyor such as an escalator.

[0002]

2. Description of the Related Art In recent years, with the advent of an aging society, the necessity of creating a town that is friendly to the elderly and the disabled has been called out.
In particular, since the enforcement of the Heart Building Law, there has been an increasing need to install passenger conveyors in stations and public facilities. For example, in buildings such as stations and department stores, it is important for the passenger conveyor to operate safely and smoothly, and in the unlikely event that the passenger conveyor fails, it is desired that the passenger conveyor be quickly restored without a long pause. Maintenance of such a passenger conveyor is regarded as important. In addition, with the advancement of women in society, in retail-related buildings such as supermarkets and department stores, there is a tendency to extend nighttime business hours and reduce the number of closed days to improve the convenience (ie, serviceability) of customers. From that
It is difficult to secure the time for performing the maintenance and inspection required for the maintenance of the passenger conveyor described above. Therefore, it is an important social issue how to improve the convenience of passengers of these passenger conveyors.

Conventionally, as described in Japanese Patent Application Laid-Open No. 8-324945, for example, when a plurality of safety switches are provided in consideration of ensuring passenger safety and a passenger conveyor equipment accident occurs, for example, When an object such as a foot is caught between a step (a so-called step) and a skirt guard, or when a drive chain is disconnected, a safety switch detects and detects a detection signal in a monitoring panel of a management room in the same building. A system configured to transmit the information to an information center of a maintenance company has been proposed.

In this type of passenger conveyor, gears are rotated by a motor via a speed reducer, and the gears drive the steps via a chain. These devices are controlled by a relay. In other words, since microcomputer control is not used unlike elevators,
In general, the above-described passenger conveyor driving device itself does not have a remote monitoring function.

[0005]

However, in the above-mentioned prior art, when an accident of a device constituting the passenger conveyor occurs, a safety switch detects the detection signal and outputs a detection signal to a monitoring panel of a management room in the same building. Since the information is sent to the information center of the maintenance company, the building manager and maintenance staff of the maintenance company can quickly respond.However, since it does not detect the state of wear or deterioration of the above-mentioned equipment, the wear or deterioration of the equipment is not detected. In order to ascertain the condition, the passenger conveyer had to be periodically stopped as usual, and maintenance personnel and the like had to check.

[0006] Further, if the wear and deterioration of the above-mentioned equipment considerably progresses before performing such regular maintenance and inspection, the passenger conveyor breaks down, that is, the wear and deterioration of the above-mentioned equipment only after the breakdown. There was also a problem of noticing that the problem had occurred.

[0007] The present invention has been made in view of such a situation in the prior art, and has as its object to maintain and inspect each device constituting a passenger conveyor in order to meet social demands for improving the convenience of passengers. It is an object of the present invention to provide a method for maintaining and inspecting a passenger conveyor, which can reduce the downtime required for the passenger conveyor.

[0008]

In order to achieve the above object, the present invention comprises a plurality of devices constituting a passenger conveyor;
A plurality of safety switches provided in consideration of ensuring passenger safety, a device detector that is provided separately from the plurality of safety switches, detects a state of each device and outputs detection data, In a passenger conveyor maintenance / inspection method including a determination unit that compares and determines with predetermined device basic data, and a communication terminal device that transmits the comparison and determination via a telephone line, the predetermined device basic data includes: It includes deterioration degree data indicating at least one of deterioration and wear, and performs maintenance and inspection of the passenger conveyor according to a comparison result between the basic data including the deterioration degree data and the detection data.

In the present invention having the above-described structure, the device basic data used for comparing and judging the detection data includes deterioration degree data indicating at least one of deterioration and wear of each device constituting the escalator. Since the detection data output from the device detector is compared with the device basic data, it is possible to automatically determine whether at least one of deterioration and wear has occurred in each device. As a result, there is no need to regularly stop the passenger conveyor and check by maintenance personnel as in the past, and preventive diagnosis that can prevent failure of each device due to wear and deterioration can be performed. The downtime required for maintenance and inspection of each device constituting the passenger conveyor can be reduced.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a passenger conveyor according to an embodiment of the present invention. FIG.
FIG. 2 is an explanatory view of a passenger conveyor in which the maintenance and inspection method according to one embodiment of the present invention is used, FIG. 2 is a flowchart showing a processing procedure when performing maintenance and inspection by the maintenance and inspection method of this embodiment, and FIG. It is a figure explaining an equipment detector and an environment detector used for a maintenance inspection method of a vehicle.

A passenger conveyor 1 shown in FIG. 1 includes a balustrade 2 erected on both sides of a step (not shown), a frame 3 for accommodating a drive device for driving the step and a control panel 4 for controlling the drive device. And In FIG.
Is a plurality of safety switches provided in consideration of the safety of passengers. The safety switches are used when an abnormality occurs in each device constituting the passenger conveyor 1 or when there is a danger such as a passenger being pinched. 5 outputs a command to the control panel 4 to stop the passenger conveyor 1.

Reference numerals 6 and 7 denote equipment detectors and environment detectors provided separately from the safety switch 5, respectively. The equipment detector 6 detects the operation and operation state of each equipment constituting the passenger conveyor 1 and detects detected data. The environment detector 7 detects the installation environment of the passenger conveyor 1, for example, the state of the ambient temperature, and outputs other detection data. The detection interval of the device detector 6 may be set in consideration of the type of the corresponding device detector 6 and the type of the passenger conveyor 1 provided with the device detector 6. For example, the detection data may be output at any time during the operation of the device detector 6, or the detection data may be output once a day. The above-described device detector 6 and environment detector 7 have different installation purposes from the safety switch 5, that is, the safety switch 5 detects an abnormality of each device of the passenger conveyor 1 to avoid danger to the passenger. The purpose is to stop the passenger conveyor 1 in order to perform the operation, whereas the device detector 6 and the environment detector 7
As described above, the operation and operating state of each device of the passenger conveyor 1 is detected, and based on the detection signal, the wear or deterioration state of each device is grasped.

As shown in FIG. 3, the passenger conveyor 1 includes three oil pan dust detectors (abbreviated as DUS) and two handrail drive chain extension detectors as specific examples of the device detector 6. (Abbreviated as CHD), one balustrade off-light detector (abbreviated as LCT), one motor unit speed detector (abbreviated as MRE), one speed reducer unit speed detector (abbreviated as DR)
E) Two handrail speed detectors (abbreviated as HR)
E) One magnet brake current detector (abbreviated BC
T), and four terminal gear unit bearing detectors (abbreviated TAE), and as a specific example of the environment detector 7, one machine room environment detector (abbreviated TMP)
Is provided.

The oil pan dust detector (abbreviated as DU)
S) is to constantly detect the amount of dust accumulated in an oil pan (not shown) that cannot be visually checked unless a plurality of steps are removed, and this oil pan dust detector makes it possible to grasp the cleaning time of the oil pan. it can.

The handrail drive chain elongation detector (abbreviated as CHD) always detects the amount of elongation of a drive chain (not shown) which cannot be visually confirmed unless a plurality of steps are removed. In addition to detecting an abnormality in the degree of elongation of the drive chain by the device in advance, it is possible to grasp the usage limit time in proportion to the amount of elongation of the drive chain.

The above-mentioned balustrade under-light detector (abbreviated as LCT)
Is to detect a failure of a not-shown illumination provided on the balustrade 2 or the frame 3 for design and safety, in a flicker phenomenon that cannot be visually confirmed. Exchange time can be quickly grasped.

The motor speed detector (abbreviated MR)
E) is for detecting the rotation speed of the motor shaft (not shown), and the speed reducer unit speed detector (abbreviated as DRE) is also for detecting the rotation speed of the gear shaft (not shown).
With these two speed detectors, it is possible to confirm the slip of the belt (not shown) connecting the motor shaft and the reduction gear shaft, the output state of the motor (not shown), and the running state of the steps.

The handrail speed detector (abbreviated as H)
RE) detects the speed of a handrail (not shown), and the running state of the handrail can be ascertained by the handrail speed detector, and knocking and skipping due to an abnormality of a handrail driving unit (not shown) can be ascertained. At the same time, a slight change in the speed of the handrail can detect damage to the canvas or deterioration of the surface of the handrail itself. Further, by comparing the detection result obtained by the handrail speed detector with the detection results obtained by the motor speed detector and the speed reducer speed detector, it is possible to identify the location where the abnormality has occurred.

The magnet brake current detector (abbreviated as BCT) detects the value of the current flowing through the coil when the magnet brake (not shown) is opened, and the magnet brake current detector detects that the magnet brake cannot be completely released. Operational abnormalities can be grasped.

The terminal gear section bearing detector (abbreviated as TAE) detects rotational vibration of a bearing of a terminal gear (not shown) that circulates the steps, and the terminal gear section bearing detector detects the wear state of the bearing. And so on.

The above-mentioned machine room environment detector (abbreviated TMP)
Is for detecting an environment in a machine room (not shown) in which a driving device, a control panel 4 and the like are installed, for example, temperature, the presence or absence of smoke or fire, and the presence or absence of abnormal sound. The machine room environment detector detects the environment in the machine room. That is, it is possible to protect the main part of the passenger conveyor 1 from a serious failure.

8 is constituted by, for example, a microcomputer,
A sensor terminal device having a determination unit 8a and a storage unit 8b. The determination unit 8a compares the detection data output from the device detector 6 with predetermined device basic data, and determines a predetermined device based on the comparison determination result. At the same time, information is created, the environment detection data output from the environment detector 7 is compared with predetermined environment basic data, and predetermined environment information is created according to the result of the comparison. The storage unit 8b stores the device information and the environment information output from the determination unit 8a.

Reference numeral 9 denotes a communication terminal capable of transmitting the device information and environmental information created by the sensor terminal 8 to the outside;
Is a machine frame that surrounds and integrally holds the control panel 4 and the sensor terminal device 8, and 11 is a status display device that is disposed, for example, near the entrance of the balustrade 2 and displays the operation status of the safety switch 5.

Reference numeral 12 denotes a portable terminal carried by a maintenance person in charge of maintenance and inspection of the passenger conveyor 1, 13 denotes an output terminal connected to the center terminal 8 by a cable (not shown), and 14 denotes a terminal connected to the portable terminal 12. Input terminal
The input terminal 14 is detachably connected to the output terminal 13. The output terminal 13 is usually covered with a cover (not shown) to prevent tampering and dust intrusion. When the output terminal 13 is connected to the input terminal 14 of the portable terminal device 12 carried by maintenance personnel, The cover is removed. In this connection state, the device information and the environmental information stored in the storage means 8b of the sensor terminal device 8 are read out by the portable terminal device 12 so that an appropriate maintenance / inspection time and component replacement time can be grasped.

Reference numeral 15 denotes a manager's office in the building where the passenger conveyor 1 is installed, 16 denotes a monitoring center for remotely monitoring the passenger conveyor 1 from outside, 17 denotes a pager carried by the maintenance staff, and 18 denotes a sensor terminal. From the device 8 to the communication terminal device 9
Is output to the management room 1 of the building described above.
5. Telephone lines for transmission to the monitoring center 16 and the pager 17, respectively. The device information and the environment information created as described above are output to the monitoring center 16 every predetermined time or every predetermined period such as a predetermined day, week, or month. The monitoring center 16 has a telephone line 18,
Storage means 8 of sensor terminal device 8 via communication terminal device 9
The device information and the environmental information stored in the storage device b are read out to grasp an appropriate maintenance / inspection time and a component replacement time, and a dispatch form of a maintenance person is instructed as necessary.

In the maintenance and inspection method according to the present embodiment,
Predetermined device basic data for comparing and determining the state of each device to the determination means 8a of the sensor terminal device 8 in advance;
For example, at least two or more predetermined device basic data including device life data and deterioration degree data are set. The above-mentioned deterioration degree data indicates at least one degree of deterioration and wear of each device, data which guarantees that each device operates safely for a predetermined period, and a possibility that each device will fail immediately. Contains other data that indicates that it is in some state. Next, the maintenance check of the passenger conveyor 1 is determined according to the processing procedure shown in FIG. That is, as step S1, the state of each device is detected by the device detector 6, and the detection data A is output to the determination means 8a of the sensor terminal device 8.
For example, detection data on the amount of dust accumulation is output from the oil pan dust detector (DUS), and detection data on the current value is output from the magnet brake current detector (BCT).

Next, in step S2, the detection data A is determined by the judging means 8a to the first data B included in the deterioration degree data of the basic device data (that is, to ensure that each device operates safely over a predetermined period). If the value of the detection data A is smaller than the value of the first data B, it is determined that the maintenance and inspection of the passenger conveyor 1 is unnecessary as step S3.

When the value of the detection data A is equal to or larger than the value of the first data B in the above step S2, the detection data A is included in the deterioration degree data of the device basic data by the determining means 8a in step S3. When the value of the detection data A is smaller than the value of the second data C in comparison with the second data C (that is, data indicating that each device is likely to fail immediately), as step S5, It is determined that maintenance and inspection must be performed within three months. On the other hand, the procedure S
When the value of the detection data A is equal to or greater than the value of the second data C in 4, it is determined that the maintenance inspection needs to be performed on the same day in step S6. The same processing is performed on the environment detection data output from the environment detector 7.

In the embodiment configured as described above, the status of each device constituting the passenger conveyor 1 is constantly monitored by the device detector 6 and the environment detector 7, and the passenger conveyor 1 cannot be stopped without being stopped. By grasping the abnormality of each device in advance, it is possible to perform a preventive diagnosis to prevent the stoppage of the passenger conveyor 1 due to wear and deterioration of each device beforehand, so that maintenance and inspection of each device constituting the passenger conveyor 1 can be performed. The required downtime can be reduced.

In the present embodiment, when the detection data A corresponding to the state of each device described above is compared with predetermined device basic data, the device basic data includes the deterioration degree data of each device. As a result, it is possible to grasp subtle changes in the state of each device that would normally not be noticed by maintenance personnel, and it is not necessary to periodically stop the passenger conveyor 1 and perform inspections by maintenance personnel, etc. as in the related art. Therefore, the downtime required for maintenance and inspection of each device constituting the passenger conveyor 1 can be reduced.

In the present embodiment, the case where the passenger conveyor 1 is an escalator is exemplified, but the present invention is not limited to this, and the same effect can be obtained even with another passenger conveyor such as a moving sidewalk.

Further, in this embodiment, the case where the device detector 6 and the environment detector 7 are provided as shown in FIG. 3 is exemplified, but the present invention is not limited to this, and various conditions are taken into consideration. The type and the number of attachments of the device detector 6 and the environment detector 7 may be increased or decreased.

Further, in the present embodiment, the environment detector 7 is arranged in the upper machine room. However, when important control equipment is arranged in the lower machine room, the environment detector 7 is installed in the lower machine room. 7 may be arranged.

Further, regarding the number and types of the safety switches 5 to be mounted, the laws and regulations in Japan and overseas, and the passenger conveyor 1
(For example, types related to indoor and outdoor installation locations, types related to forms such as moving walkways and escalators, types related to installation environments related to cold regions, salt damage, and types related to high head or low head). .
The same applies to the number and types of attachment of the device detector 6 and the environment detector 7.

[0035]

Since the present invention is constructed as described above, it is not necessary to periodically stop the passenger conveyor and check by maintenance personnel and the like, and to prevent failure of each device due to wear and deterioration. Since preventive diagnosis can be performed, the downtime required for maintenance and inspection of each device constituting the passenger conveyor can be reduced, and therefore, there is an effect that the convenience of the passenger using the passenger conveyor can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a passenger conveyor in which a maintenance and inspection method according to an embodiment of the present invention is used.

FIG. 2 is a flowchart showing a processing procedure when performing a maintenance inspection by the maintenance inspection method of the present embodiment.

FIG. 3 is a diagram illustrating a device detector and an environment detector used in the maintenance and inspection method according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Passenger conveyor 4 Control panel 5 Safety switch 6 Device detector 7 Environment detector 8 Sensor terminal device 8a Judgment means 8b Storage means 9 Communication terminal device 12 Mobile terminal device 15 Management room 16 Monitoring center 18 Telephone line

Continuation of front page (72) Inventor Asayuki Kyoya 1-6-6 Kanda Nishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Co., Ltd.

Claims (4)

[Claims] A plurality of devices constituting a passenger conveyor;
A plurality of safety switches provided in consideration of ensuring passenger safety, a device detector that is provided separately from the plurality of safety switches, detects a state of each device and outputs detection data, In a passenger conveyor maintenance / inspection method including a determination unit that compares and determines with predetermined device basic data, and a communication terminal device that transmits the comparison and determination via a telephone line, the predetermined device basic data includes: Deterioration data indicating at least one degree of deterioration and wear is included, and the maintenance and inspection of the passenger conveyor is performed according to a comparison result of the basic data including the deterioration degree data and the detection data. A featured maintenance method for passenger conveyors. 2. The device according to claim 1, wherein the deterioration degree data is first data that is data that guarantees that each device operates safely over a predetermined period, and the device is in a state where there is a concern that each device may fail immediately. 2. The passenger according to claim 1, further comprising: a second data that is data indicating that when the value of the detection data is less than the value of the first data, maintenance and inspection of the passenger conveyor are not performed. Conveyor maintenance and inspection methods. 3. When the detected data is equal to or greater than the value of the first data and less than the value of the second data, maintenance and inspection of the passenger conveyor are performed within a predetermined period. Item 2. The maintenance method of the passenger conveyor according to Item 2. 4. The maintenance method for a passenger conveyor according to claim 2, wherein the maintenance inspection of the passenger conveyor is performed immediately when the value of the detection data is equal to or greater than the value of the second data.