JPH08301566A - Escalator step board damage monitor - Google Patents

Abstract

PURPOSE: To provide an escalator step board damage monitor for monitoring the damage of step boards in the operated state of an escalator. CONSTITUTION: An escalator step board damage monitor is provided with a damage detecting part 7 for detecting the damage of the step board 1a of each footstep 1 of an escalator during operation optically or electromagnetically in a contactless state so as to generate a damage detection signal indicating the detected result, and a footstep detecting part 11 for detecting the position of the footstep 1 electromagnetically in a contactless state from the passage of the driving roller 3 and auxiliary roller 3a of each footstep 1 so as to generate a footstep detection signal indicating the detected result. These signals are synchronized to obtain whether the step board is damaged or not and the damaged position and to record them. The damage of the step boards can thereby be monitored automatically at all times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator tread damage monitoring device for monitoring the damage condition of teeth of an escalator tread.

[0002]

2. Description of the Related Art FIG. 8 is a view for explaining a conventional method for inspecting a damaged state of a tread of an escalator. In FIG. 8, reference numeral 1 is a step shown in a perspective view in FIG. 9, and a plurality of steps are continuously connected in a ring shape to form an endless track structure. The portion indicated by 1a in FIG. 9 is a tread on which a person rides. 2 is a landing plate, and 12 is a moving handrail.

When detecting damage to the tread 1a, a maintenance worker rides on the landing plate 2 on the upper floor or the lower floor, operates the escalator, and visually inspects the step 1 until each step is completed. Was there.

[0004]

As described above, the prior art is as follows.
Since the escalator's treads were monitored for damage by visual inspection by maintenance workers, the higher the escalator, the longer the inspection time and the possibility of oversight. .

The present invention has been made to solve the above problems, and an escalator tread damage monitoring device for monitoring tread damage in a state where an escalator is in operation without relying on the visual inspection of a maintenance worker. The purpose is to provide.

[0006]

In view of the above object, a first invention of the present invention is an escalator step plate damage monitoring device for monitoring the step plate damage of each step of an escalator in operation. Of damage detection means for detecting damage to the step plate and generating a damage detection signal, and damage detection means movable in a direction substantially orthogonal to the moving direction of the step, and step detection means for detecting the position of each step and generating a step detection signal. And a control / recording means for controlling the movement of the breakage detecting means, determining the presence or absence of breakage of the tread plate and the breakage position by synchronizing the breakage detection signal and the step detection signal, and recording this. The escalator tread damage monitoring device is characterized in that

According to a second aspect of the present invention, the breakage detecting means includes an optical breakage detecting section for irradiating the tread plate with light and detecting the presence or absence of breakage from the reflected light. The escalator tread damage monitoring device described in.

In a third aspect of the present invention, the breakage detecting means has an excited breakage detecting iron core having a gap for receiving the teeth of the tread, and the teeth are detected by a change in magnetic field of the breakage detecting iron core. The escalator tread damage monitoring device according to claim 1, further comprising an electromagnetic damage detector for detecting damage to the escalator.

A fourth aspect of the present invention is characterized in that a brush for removing dirt and foreign matter on the step plate is further provided on the front side of the damage detecting means in the moving direction of the step. The escalator tread damage monitoring device according to any one of Items 1 to 3.

According to a fifth aspect of the present invention, each of the steps has a drive roller for guiding the steps along a track, the reference step further has an auxiliary roller, and the step detecting means is provided for the step plate. It has an excited step detection iron core having a gap for receiving the drive roller and the auxiliary roller, and an electromagnetic step detection part for detecting the step and the position of each step as the above-mentioned reference by the change of the magnetic field of the step detection iron core. The escalator tread damage monitoring device according to any one of claims 1 to 4, wherein the escalator tread damage monitoring device is included.

According to a sixth aspect of the present invention, when the detected damage is larger than a predetermined damage, damage notification means for notifying the damage to the outside is further provided. The escalator tread damage monitoring device according to any one of the above.

[0012]

According to the first aspect of the present invention, the damage of the step plate of each step of the escalator during operation is detected by contact, and a damage detection signal indicating this is generated, and the position of the step is also detected by contact. Then, a step detection signal indicating this is generated, and the presence or absence of the damage to the tread and the position of the damage are obtained and recorded by synchronizing them, and the tread damage can always be automatically monitored.

In the second aspect of the present invention, the damage of the tread is detected by contact, and in particular, an optical damage detection unit for irradiating the tread with light and detecting the presence or absence of the damage from the reflected light is provided. I chose

According to a third aspect of the present invention, as a means for detecting the damage of the tread by contact, in particular, there is an excited damage detection iron core having a gap for receiving the teeth of the tread, and this damage detection iron core. An electromagnetic damage detection unit is provided to detect damage to the teeth due to changes in the magnetic field.

According to a fourth aspect of the present invention, a brush for removing dirt and foreign matter on the tread is provided on the front side of the damage detecting portion of the tread in the moving direction of the step, and the brush for removing dirt and foreign matter on the tread is provided. Prevented damage detection error.

In a fifth aspect of the present invention, each step has a drive roller for guiding it along the track, and the reference step further has an auxiliary roller for detecting the position of the step by contact. As an electromagnetic step that has an excited step detection iron core having a gap for receiving the driving roller and the auxiliary roller of the step plate, and detects the reference step and the position of each step by the change in the magnetic field of the step detection iron core. A detector is provided.

In the sixth aspect of the present invention, when the detected damage is larger than a predetermined damage, the damage is notified to the outside.

[0018]

EXAMPLES Examples will be described below with reference to the drawings. Example 1. FIG. 1 is a diagram showing a configuration of a mechanical portion of an escalator tread damage monitoring device according to an embodiment of the present invention. In the figure, 1 is a step, and 1a is a step plate of this step 1. 3 is a drive roller for step 1 and 3a is a reference step 1
It is an auxiliary roller provided only in A. Reference numeral 4 denotes a drive rail on which the drive roller 3 and the auxiliary roller 3a roll and move.

Reference numeral 5 is a follower roller, 6 is a follower rail on which the follower roller 5 rolls, and these are steps 1 (step 1A).
(Including also) is always kept parallel to the moving direction S thereof. At the curved parts on both ends of the escalator, the steps should be always parallel to the moving direction along this curved line.

Reference numeral 7 denotes a breakage detecting section, an example of a concrete structure of which is shown in FIG. FIG. 2 shows an optical breakage detecting section. 7a is a projector, 7b is a lamp, 7c is a condenser lens, 7d is a light receiver, and 7e is a light receiving element. Further, the tread 1a is shown as a cross-sectional view taken along the line AA in FIG. 1, 1b indicates a normal tooth, and 1c indicates a broken tooth.

Returning to FIG. 1, the reference numeral 8 indicates the damage detecting section 7 and the step 1
The detection unit drive unit is driven in a direction U orthogonal to the movement direction S of, and the detection unit drive rail 9 along which the damage detection unit 7 is moved. Reference numerals 10 denote brushes for removing dirt and foreign matter on the tread 1a, which are provided on both sides of the damage detecting section 7 in the moving direction S of the tread 1a. Note that this may be provided only on the front side in the moving direction S.

Reference numeral 11 is a step detecting portion, and 11a is a support body for supporting and fixing the step detecting portion 11 to the detecting portion drive rail 9. FIG. 3 shows an example of a specific configuration of the step detector section 11. FIG. 3 shows an electromagnetic step detecting section.
b is an iron core for step detection, 11c is an exciter for exciting the iron core 11b for step detection, 11d is step detection for detecting that the rollers 3, 3a have passed through the gap 11e of the iron core 11b for step detection by a change in magnetic field. It is a vessel. The step detector 11 is provided at the same position as the damage detector 7 in the moving direction S of the step 1.

Further, the breakage detecting unit 7, the detecting unit driving unit 8, the brush 10 and the step detecting unit 11 shown in FIG. 1 are, for example, as shown in FIG. 4, the lower horizontal moving portion of the rotating unit on the upper floor of the escalator. It is provided in.

FIG. 5 shows an example of the configuration of the control system of the footstep damage monitoring device of the present invention. In the figure, 70 is a damage detection unit 7, a detection unit drive unit 8 and a detection unit drive rail 9.
Damage detection means 110 including step detection means 110 including step detection portion 11, and damage detection signal S1 from damage detection portion 7 and step detection signal S from step detection portion 11 respectively.
2 is generated.

Reference numeral 13 denotes a control for controlling the damage detecting means 70 and the step detecting means 110 and a control for recording the damage information.
It is a control / recording unit that constitutes recording means. The control / recording unit 13 has an I / O port 13a, a RAM 13b for storing data such as damage information, and a C for performing control processing.
The computer 13e includes a PU 13c and a ROM 13d that stores programs for controlling the CPU 13c. The control / recording unit 13 is also connected to a monitoring center 14 that controls and monitors more escalator.

The operation will be described below. The damage detection unit 7 is moved by the detection unit drive unit 8 and the detection unit drive rail 9 shown in FIG. 1 in the direction U orthogonal to the moving direction S of the step 1 by one tooth each time the escalator makes one rotation. To be made. Then, as shown in FIG. 2, light is emitted from the projector 7a to the tread 1a, and the reflected light is received by the light receiver 7d, thereby detecting whether or not the tooth 1b of the tread 1a is damaged.

FIG. 2 shows the principle of detecting damage to the teeth 1b of the tread 1a.
And it demonstrates according to FIG. Floodlight 7a to tread 1a
The tooth 1b is irradiated with light, and the reflected light is received by the light receiver 7d. However, when the tooth is the damaged tooth 1c, there is almost no reflected light.

FIG. 6 shows this with an electrical output waveform. In the breakage detection signal S1 from the light receiving element 7e of the breakage detection unit 7, C101 which is a joint of the tread 1a appears regularly. And if there is no damage, the tread 1
The breakage detection signal S1 maintains a constant value during T corresponding to the length of one sheet in the moving direction of a.

However, if there is a damaged portion, a portion where the output is lost appears like C102. Therefore, by detecting this, the existence of the damaged portion can be detected.
Also, the degree of damage can be known from the time of C102.

Further, the step detector 11 shown in FIG.
It is effective for detecting the damage position of the, and for recording the damage position. The step detecting unit 11 excites the step detecting iron core 11b with an exciter 11c, and when the drive roller 3 and the auxiliary roller 3a pass through the gap 11e, the step detecting iron core 11b.
The step detector 11d detects the change in the magnetic field at b.

This will be described with reference to the electrical output waveform of FIG. 6. In the step detection signal S2 from the step detector 11d of the step detection unit 11, C103 generated by the drive roller 3 of each step 1 is regularly. Appear in. And the standard step 1A
Then, two signals C from the driving roller 3 and the auxiliary roller 3a
103 and C104 appear.

Damage detection means 7 including the damage detection unit 7
0 and control of the above-mentioned operation of the step detecting means 110 including the step detecting section 11 and analyzing the damage situation and the damage position by synchronizing the damage detection signal S1 and the step detection signal S2 from them. Control / recording unit 1 shown in FIG.
It is 3.

In the control / recording unit 13, the computer 13
C according to the program P1 stored in the ROM 13d of
A control process is performed by the PU 13c. Then, by synchronizing the breakage detection signal S1 and the step detection signal S2, the presence or absence of breakage, the analysis of the breakage condition, and the step with breakage and the position thereof are specified.

As described above, the presence / absence of breakage and the status of breakage can be analyzed based on the presence / absence and length (time) of C102 of the breakage detection signal S1 in FIG. 6, and the step with breakage and its position can be specified. , The damage detection signal S1 and the step detection signal S2 are synchronized, and C102 is the reference step 1A of which lap
It is carried out by counting the number of steps that are occurring.

These pieces of damage information are stored in the RAM 13b and left as a record.

The control / recording unit 13 also controls the damage detecting unit 70 to move the damage detecting unit 7 by one tooth of the tread 1a each time the escalator makes one revolution.

Further, the control / recording unit 13 is further provided with a damage reporting means for reporting to an external monitoring center 14 via the I / O port 13a when the degree of tooth damage of the tread 1a is large. You can also This can be done, for example, by comparing the length of C102 of the damage detection signal S1 with a predetermined reference value and generating a notification signal S3 when the length exceeds the reference value. For example, as shown in FIG. , ROM13
This can be realized by adding the program P2 for this to d.

Example 2. FIG. 7 shows another embodiment of the damage detection unit shown in FIG. Although FIG. 2 shows an optical detection unit, FIG. 7 shows an electromagnetic damage detection unit 7A using electromagnetic waves similar to the step detection unit 11 of FIG. 3, 7f is a damage detection iron core, and 7g is a damage detection iron core. Is an exciter for exciting the damage detection iron core 7f, and 7h is a damage detector.

The damage detection iron core 7f has a gap 7
It is provided so that the teeth 1b of the tread 1 pass between i. Then, the tooth 1 of the damage detection iron core 7f excited by the exciter 7g is
The change in the magnetic field due to the damage of b is detected by the damage detector 7h.

Damage detector 7 utilizing such an electromagnetic field
A has a characteristic of being more resistant to dirt (dirt adhered to the tread 1a, etc.) than optical ones.

[0041]

As described above, according to the first aspect of the present invention, the breakage of the tread plate of each step of the escalator in operation is detected by contact, and a damage detection signal indicating this is generated.
Similarly, the position of the step is detected by being contacted, a step detection signal indicating this is generated, and the presence or absence and the damaged position of the step of the tread are determined by synchronizing these signals, and this is recorded. It is possible to provide an escalator tread damage monitoring device that can automatically monitor the tread damage even at any time, does not rely on the visual inspection of the maintenance worker, and can perform more reliable monitoring.

Further, in the second aspect of the present invention, the damage of the tread is detected by contact, and an optical damage detection unit for irradiating the tread with light and detecting the presence or absence of damage from the reflected light is provided. Therefore, it is possible to provide an effect such as providing a highly reliable escalator tread damage monitoring device capable of accurately detecting tread damage.

According to the third aspect of the present invention, for detecting the damage of the tread plate by contact, there is provided an excited damage detection iron core having a gap for receiving the teeth of the tread plate,
Since an electromagnetic damage detector that detects damage to the teeth due to changes in the magnetic field of the damage detection iron core is provided, a highly reliable escalator tread damage monitoring device that is particularly resistant to dirt and enables more accurate tread damage detection. Can be provided.

Further, in the fourth aspect of the present invention, a brush for removing dirt and foreign matter on the tread is provided on the front side of the step detecting portion of the damage detection part of the tread in the moving direction of the step, and dirt and foreign matter on the tread are provided. Since the damage detection error due to the above is prevented, it is possible to provide the effect of providing a highly reliable escalator tread damage monitoring device capable of detecting the tread damage more accurately.

Further, in the fifth aspect of the present invention, each step has a drive roller for guiding the step along the track, and the reference step further has an auxiliary roller for detecting the position of the step by contact. It has an excited step detection iron core having a gap for receiving the drive roller and the auxiliary roller of the step plate, and an electromagnetic detecting the step and the position of each step as a reference by the change of the magnetic field of the step detection iron core. Since the step detection unit is provided, it is possible to accurately detect the footboard position, and thus it is possible to provide a highly reliable escalator footboard damage monitoring device that can detect a reliable damage position.

In the sixth aspect of the present invention, when the detected damage is larger than the predetermined damage, the damage is notified to the outside, so it is dangerous to continue the operation of the escalator. When such a degree of damage is detected, it is possible to provide an instruction to stop the operation of the escalator, and to provide a more mobile and highly reliable escalator tread damage monitor.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a mechanical portion of an escalator tread damage monitoring device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of an example of an optical damage detection unit in the escalator tread damage monitoring device according to the present invention.

FIG. 3 is a diagram showing a configuration of an example of an electromagnetic step detecting section in the escalator step board damage monitoring device according to the present invention.

FIG. 4 is a diagram showing an example of a mounting position of a mechanical portion in the escalator tread damage monitoring device according to the present invention.

FIG. 5 is a diagram showing an example of a configuration of a control system in the escalator tread damage monitoring device according to the present invention.

FIG. 6 is a diagram showing an electrical output waveform in the escalator tread damage monitoring device according to the present invention.

FIG. 7 is a diagram showing an example of a configuration of an electromagnetic damage detection unit in the escalator tread damage monitoring device according to the present invention.

FIG. 8 is a diagram for explaining a conventional method for inspecting a damage condition of a tread of an escalator.

FIG. 9 is a perspective view showing steps of an escalator.

[Explanation of symbols]

1 step, 1a step plate, 1b tooth, 1c broken tooth,
1A Tread plate, 2 Landing plate, 3 Drive roller, 3a Auxiliary roller, 4 Drive rail, 5 Follow roller, 6 Follow rail, 7 (Optical) breakage detection unit, 7
A (electromagnetic) damage detector, 7a light emitter, 7b lamp, 7c condenser lens, 7d light receiver, 7e light receiving element, 7f damage detection iron core, 7g exciter, 7h damage detector, 7i gap, 8 detector drive Section, 9 detection section drive rail, 10 brushes, 11 step detection section, 11a
Support body, 11b Iron core for detecting tread, 11c Exciter,
11d step detector, 11e gap, 13 control /
Recording unit, 13a I / O port, 13b RAM, 13
c CPU, 13d ROM, 13e computer,
14 monitoring centers, 70 damage detection means, 110 step detection means, S1 damage detection signal, S2 step detection signal.

Claims (6)

[Claims] 1. An escalator tread damage monitoring device for monitoring the damage to the treads of each step of an escalator in operation, which is a movement direction of the steps for detecting a damage to the tread of each step and generating a damage detection signal. Damage detection means movable in a direction substantially orthogonal to the step, step detection means for detecting the position of each step and generating a step detection signal, movement control of the damage detection means, and the damage detection signal and step. Control for synchronizing the detection signal to determine the presence or absence of damage to the tread and the position of damage and recording this
An escalator tread damage monitoring device, comprising: recording means. 2. The escalator tread damage monitoring according to claim 1, wherein the damage detection means includes an optical damage detection unit that irradiates the tread with light and detects the presence or absence of damage from the reflected light. apparatus. 3. The damage detecting means has an excited damage detecting iron core having a gap for receiving the teeth of the tread plate, and an electromagnetic detecting means for detecting damage to the teeth by a change in magnetic field of the damage detecting iron core. The escalator tread damage monitoring device according to claim 1, further comprising a damage detector. 4. The brush for removing dirt and foreign matter on the tread plate is further provided on the front side in the moving direction of the step of the damage detecting means. Escalator tread damage monitoring device described in. 5. Each step has a drive roller for guiding it along the track, and a reference step further has an auxiliary roller, and the step detecting means receives the drive roller and the auxiliary roller of the step plate. It has an excited step detection iron core having a gap, and includes an electromagnetic step detection unit for detecting the reference step and the position of each step by the change of the magnetic field of the step detection iron core. Item 1
The escalator tread damage monitoring device according to any one of to 4. 6. The escalator tread according to claim 1, further comprising a damage reporting means for reporting the detected damage to the outside when the detected damage is larger than a predetermined damage. Damage monitoring device.