JPH0725574A - Man conveyor - Google Patents

Abstract

PURPOSE:To reduce working labour and working time for maintenance inspection by detecting passing of a wheel axis of a step chain at an energy detection part and measuring an interval between the neighbouring wheel axes. CONSTITUTION:A light source part 11 is supported on the upper side of a step axis 62 of a wheel 60 provided on a step chain 61 and a light receiving part 12 is supported on the lower side of it respectively by fixtures 13, 14. So as to optically measure a distance between the neighbouring step axes 62, the light source part 11 is previously switched on, at the moment when the step axis 62 passes the light receiving part 12 and light reception of the light receiving part 12 is cut out, a photoelectric signal is generated from an output terminal of the light receiving part 12, this photoelectric signal is converted to an axis count signal simultaneously with a measuring starting signal at a controller, and by counting a pulse number, the number of the step axes 62 passing the light receiving part 12 is counted. In accordance with the total number of this counting, the length between respective step axes is computed, and an extended part of the step chain 61 is detected. Consequently, it is possible to automatically measure the extension of the step chain 61.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a man conveyor,
In particular, it relates to a passenger conveyor capable of automatically measuring the elongation of a step chain.

[0002]

2. Description of the Related Art FIG. 4 shows a perspective view of a passenger conveyor. The man conveyer connects adjacent steps 55 to each other by a demarcation comb 45, connects the steps 55 endlessly, and carries them by driving the steps 55. In addition, the moving handrail 48 includes a plurality of balustrade columns 47 arranged on an outer plate 46 that covers the side surface of the passenger conveyor.
And is driven at the time of driving in step 55.

The operation of step 55 and the handrail 48 will be described with reference to the drawings. By turning on the start switch of the man conveyor of the operation panel 40, the driving machine 41 is driven, and the driving chain 41 is driven by the driving of the driving machine 41. Further, the driving chain 42 drives the step chain 61. By driving the step chain 61, a plurality of drive rollers 52 on the drive rail 51 are driven, and by driving the plurality of drive rollers 52, the handrail drive chain 43 is driven, and the handrail drive chain 43 is driven. The moving handrail 48
Drive.

In this way, the driving roller 52 is driven by driving the step chain 61, which is shown in FIG.
This is because the step chain 61 drives the step roller 63, and the driving force of the step roller 63 drives the drive roller 52 via the roller shaft 64, as shown in FIG. Further, the driving of the step chain 61 is simultaneously performed,
The step roller 49 shown in FIG. 4 is driven, and the step 55 is driven by driving the step roller 49. During this drive, the step drive control is performed by the step switch 44. The follower roller 53 on the follower rail 54 is rotated by the driving force of the step 55 driven in this way, and the conveyance by the drive of the step 55 is smoothly performed.

Although only one step chain 61 is shown in FIGS. 4 and 5, as shown in FIG. 6 (a), the man conveyor has two step chains 61a.
And 61b. Two step rollers 63 are attached to the step shaft 6 on the step chains 61a and 61b.
A plurality of wheels 60 joined by 2 are vertically joined, and the step chains 61a and 61b are arranged in parallel with each other. FIG. 6A shows a step chain 61 and wheels 60.
6B, a side view is shown. As shown in FIG. 6B, the step chain 61
Connects a plurality of links 64 with pins 65, and further connects a wheel 60 for each predetermined number of links 64.

As described above, the passenger conveyor is driven by the step chains 61a and 61b to drive the step 55.
Are driven to transport people, animals, articles and the like. For this reason, the pulling force always acts on the step chains 61a and 61b, and the step chains 61a and 61b are stretched over time during the use of the passenger conveyor. This 61
It is almost never the case that the changes in elongation of a and 61b are the same. Therefore, the lengths of the step chains 61a and 61b are unbalanced. Alternatively, due to the great elongation of the step chains 61a and 61b, it becomes impossible to smoothly carry them by the man conveyor. In this way, a problem due to the step chain 61 occurs.

Therefore, in the conventional passenger conveyor, as a maintenance inspection before the above-mentioned trouble occurs, after periodically removing all the steps 55, the entire length of the step chain 61 is divided into units of a predetermined length U. , Each unit U is measured with a caliper, and when the measured value exceeds a predetermined length, it is determined that the unit U has reached the end of its life, and the unit is replaced or each link of the unit U is linked. 6
4, the parts such as the pins 65 and the like are measured with a caliper to determine the life of the parts in the same manner, and replace the parts that have reached the end of their life.

[0008]

As described above, in the man conveyor, all the steps are periodically removed for maintenance and inspection of the step chain, and the length of the step chain at a predetermined interval is measured with a caliper to show a large elongation. It was necessary to perform maintenance and inspection work such as exchanging the step chain of the part. This maintenance and inspection work not only requires a great deal of labor and a long time, but it is necessary to stop the man conveyer during the maintenance and inspection work, and during that time, it is not possible to carry it by the man conveyer. It is impossible.

The present invention has been made to solve the above problems, and automatically detects the elongation of the step chain to reduce the labor and time required for maintenance and inspection. The purpose is to reduce the time to stop the transportation of the passenger conveyor.

[0010]

According to the present invention, an energy source and a detector for detecting the energy are provided, and a track of a wheel shaft and a straight line connecting the energy source and the detector intersect each other. The energy generating source and the detection unit are arranged, and the detection unit includes means for detecting passage of the wheel shafts and measuring an interval between the wheel shafts adjacent to each other.

[0011]

By measuring the wheel shaft distance by the above means, the elongation of the step chain in the region arranged between the measured wheel shafts in the entire step chain can be measured.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram in which the chain elongation measuring device according to the present embodiment is arranged on a man conveyor. The difference from the layout of FIG. 5 is that the light source unit 11 is provided above the step shaft 62 of the wheel 60.
, The light-receiving part 12 is attached to the lower side, respectively.
4 is the point that is supported.

FIG. 2 shows a schematic configuration diagram of a chain elongation measuring device including the light source unit 11, the light receiving unit 12, and the step shaft. As shown in FIG. 6A, the step shafts 62 of the wheel 60 are arranged at intervals corresponding to the length of a predetermined number of links 44. In this embodiment, the step shaft 6
The elongation of the chain is measured by optically measuring the distance between adjacent two.

FIG. 3 is a timing chart during the operation of FIG. A method of optically measuring the distance between the step axes 62 will be described with reference to the drawings. From the controller 21, when a predetermined step passes a predetermined position,
In order to stabilize the light source unit 11 by generating the measurement start signal according to (a) and before generating the measurement start signal, the light source 11 is turned on in advance, and the step shaft 62 causes the light receiving unit 12 to move.
3 and the moment when the light reception of the light receiving unit 12 is cut off,
A photoelectric signal as shown in FIG. 3B is generated from the output terminal of the light receiving unit 12, and this photoelectric signal is converted into an axis count signal as shown in FIG. , The number of pulses is counted by the controller 21, and the step axis 6 passing through the light receiving section 12 is counted.
Count the number of 2's.

When the total number obtained by the counting coincides with the total number of the step axes 62 of the conveyor, the measurement of the step axes 62 is terminated, and the controller 21 determines the time between the pulses of the axis count signal and the speed of the step axes. , The length between the step axes is calculated, the extended portion of the step chain 61 is detected, and the output result is printed out from the printer 22.

As described above, it is possible to automatically measure the elongation of the step chain and significantly reduce the labor and time required for maintenance and inspection of the step chain.

In the above, the step of counting the axis in FIG. 3 (c) generates a pulse only at the moment when the step shaft 62 starts to shut off the light receiving portion 12, and the measurement is started at the time when the predetermined step passes the predetermined position. However, the elongation of the step chain can be measured more accurately by the following.

The step shaft 62 generates a pulse at the moment when the light receiving portion 12 starts to be cut off and at the moment when the light receiving portion 12 is cut off,
A measuring means for measuring the diameter of the step axis 62 is provided, and the outer circumference of a predetermined area of the step axis that irradiates the light from the light source unit 11 to the step axis and reflects the light is used as a measurement area. By joining a material such as metal, which does not transmit the light of the light source section 11, a marker is attached to increase the diameter of this portion. When the predetermined step axis with this marker passes through the light receiving part, it is detected that the predetermined step axis has passed through the light receiving part, because the diameter is larger than the other step axes, and the step axis interval is detected when this marker is detected. Measurement is started, and the measurement is ended again when the marker is detected. After the predetermined period of time, the step axis interval is measured again, so that the elongation between the step axes during the predetermined period can be detected. Further, there is a possibility that the life of each step shaft can be estimated by periodically measuring the step shaft interval and obtaining the change over time in the elongation between the step shafts.

Further, at the time of measuring the above elongation, by providing a means for applying paint, magic or the like to the step chain having a large elongation, it is possible to visually and quickly know the portion requiring replacement of the step chain. It is possible to quickly detect areas of parts or step chains that require replacement.

Alternatively, names or numbers are assigned to all the step axes in advance, and the elongation measurement data between all the step axes and the names or numbers of the step axes at both ends of the measurement portion are in one-to-one correspondence. By doing so, it is possible to quickly detect the part or step chain area that needs replacement. Therefore, at the time of maintenance and inspection, the maintenance and inspection work becomes easier by stopping the portion with a large elongation at a predetermined position where the replacement work is easy and then performing the maintenance and inspection.

Further, in the embodiment, the measurement is performed by light, but the light may be a light, a semiconductor laser, a gas laser, etc. by providing a light receiving portion capable of detecting each, and instead of light, an ultrasonic wave may be used. Etc. may be used.

Although it is possible to detect the elongation of the step chain even if only one step axis interval is measured, the elongations of the step chains 61a and 61b are different.
By providing measurement points at both ends of the step axis and measuring the step axis intervals at the both ends, it is possible to detect the extension of the step axis interval of each step chain more accurately.

[0023]

As described above, by measuring the wheel shaft distance, it is possible to measure the elongation of the step chain in the region arranged between the measured wheel shafts in the entire length of the step chain, and the man conveyor The automatic detection of the step chain extension in the normal use state of (1) will greatly reduce the labor and time required for maintenance and inspection of defects caused by the step chain extension.

[Brief description of drawings]

FIG. 1 is a layout view of a step axis gap measuring device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a principle of step axis interval measurement according to an embodiment of the present invention.

FIG. 3 is a time chart diagram of step axis interval measurement according to an embodiment of the present invention.

FIG. 4 is a perspective view of a passenger conveyor.

FIG. 5 is a layout view of a step shaft and a step chain.

FIG. 6 is a layout view of wheels and a step chain.

[Explanation of symbols]

 11 light source section 12 light receiving section 13, 14 mounting tool

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] September 6, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art FIG. 4 shows a perspective view of a passenger conveyor. Man conveyor, two positions of the step shaft 62 the steps 55
Rotatably mounted on the step shaft of step 55
Fixed on the step chain 61 outside the mounting position
There is. Endless step 5 on this step chain 61
5 are connected, and the conveyance is performed by the driving of step 55. Further, the moving handrail 48 is supported by a plurality of balustrade posts 47 provided on an outer side plate 46 that covers the side surface of the passenger conveyor , drives the step chain 61, and simultaneously supports the handrail.
Is the sprocket 49 that also drives the drive chain 43 at the same time?
It is driven by these driving forces.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

The operation of step 55 and the handrail 48 will be described with reference to the drawings. By turning on the start switch of the man conveyer of the operation panel 40, the drive machine 41 is driven, and the drive chain 41 is driven by the drive of the drive machine 41.
Drive the step chain 61 from the sprocket 49 , drive the plurality of drive rollers 52 on the drive rail 51, and drive the handrail drive chain 43 from the sprocket 49. The moving handrail 48 is driven by driving the handrail drive chain 43.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

In this way, the driving roller 52 is driven by driving the step chain 61, which is shown in FIG.
As shown in, step chain 61 steps shaft 62
This is because the drive roller 52 is driven via the step shaft 62 . The step chain 61 is fixed to the step 55 . Driven as this, the driving force of the step 55, to rotate the following roller 53 on the tracking rails 54, is performed to smooth the conveying by the drive of the step 55.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

Although only one step chain 61 is shown in FIGS. 4 and 5, as shown in FIG. 6 (a), the man conveyor has two step chains 61a.
And 61b. A plurality of wheels 60 joined by step shafts 62 at two locations are vertically joined to the step chains 61a and 61b.
And 61b are arranged parallel to each other. 6A shows a layout of the step chain 61 and the wheels 60, and FIG. 6B shows a side view thereof. As shown in FIG. 6B, the step chain 61 includes a plurality of links 64.
Are connected by a pin 65, and a wheel 60 is connected for each predetermined number of links 64.

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

[Procedure Amendment 8]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

Claims (2)

[Claims] 1. A wheel shaft of a plurality of wheels is arranged in parallel, a step chain is provided perpendicularly to the wheel shaft, the step chain is connected endlessly, and the driving force of a driving machine is provided through the step chain. In the man conveyer that conveys to the step and conveys by the step, the energy source and the detection unit that detects the energy are provided, and the track of the wheel shaft intersects with the straight line connecting the energy source and the detection unit. As described above, the energy conveyor and the detection unit are arranged, and the detection unit detects the passage of the wheel shafts, and includes means for measuring the distance between the wheel shafts adjacent to each other. 2. A wheel shaft of a plurality of wheels is arranged in parallel, a step chain is provided perpendicularly to the wheel shaft, the step chains are connected endlessly, and a driving force of a driving machine is provided through the step chains. In a man conveyer that conveys to a step and conveys by the step, a light source and a light receiving section for receiving the light source are provided, and the track of the wheel shaft and a straight line connecting the light source and the light receiving section intersect, A man conveyer comprising a light source and a light receiving unit, and means for detecting passage of the wheel shafts by the light receiving unit and measuring an interval between wheel shafts adjacent to each other.