JP2000053359A - Step searching device for escalator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically search a given step by providing a reading means provided for an immovable escalator body for reading an identification mark provided for a step, and a searching means that searches a desired step based on the read identification signal and stops it to a given position. SOLUTION: Bar code labels 20 as identification marks provided for all steps 4 are read by a bar code reader 21 as a reading means arranged on an immovable escalator body. Based on the read identification signal, a searching control device 22 as a searching means searches a desired step 4 and stops it to a given position. In other words, first, an input device 26 of the searching control device 22 sets the step 4 to be searched. Then, an escalator is operated, the bar code reader 21 identifies the bar code labels 20 one by one, and it is compared with whether each of them matches with the identification signal of the desired step 4. Finally, if matching, a driving device 9 is controlled to stop the operation of the escalator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step search device for searching for each step of an escalator.

[0002]

2. Description of the Related Art FIG. 4A is a view showing the appearance of the entire structure of a conventional escalator. The escalator 1 includes an immovable escalator main body 2 as a structure spanning an upper floor and a lower floor, and a number of steps 3 provided on the escalator main body 2 so as to be vertically movable. Each step 3 is connected endlessly by a step chain 4, and the step chain 4 is wound around upper and lower sprockets disposed in an upper machine room 5 located on the upper floor and a lower machine room 6 located on the lower floor. It is hung. The upper machine room 5 is provided with a drive device 7 having a motor and a brake for driving and stopping the upper sprocket, and controls the operation of the steps 3.

As shown in FIG. 4 (b), the step 3 has a tread plate 8 arranged horizontally, a riser 9 arranged at a right angle to the tread plate 8, and a frame supporting the tread plate 8 and the riser 9. Step shaft 1 that penetrates the end of body 10 on the side of step plate 8 from side to side
1, a drive roller 12 rotatably attached to the tip of the step shaft 11, and a pair of right and left follow-up rollers 13 provided at the end of the frame body 10 on the riser 9 side. The step shaft 11 is engaged with the step chain 4, and the step chain 4
The driving roller 12 is rolled and guided on a driving rail 14 provided on the escalator main body 2, and the following roller 13 is rolled and guided on a driven rail 15 disposed in parallel with the driving rail 14. Is done. A skirt guard 16 is provided at the lower edge of the left and right side walls of the escalator body 2 so as to oppose the left and right side edges of each step 3, and the upper edge of the left and right side wall moves in synchronization with each step 3. A handrail 17 is provided.

[0004]

Since all the steps 3 have the same shape, conventionally, when a certain specific step 3 is selected for work, the upper or lower machine room 5 or 6 is used.
Within the search, the search is performed while confirming the characteristics of the one-step and one-step steps 3 by visual and / or hearing, or the search is performed by checking the step shaft 11 and the like visually beforehand. There was a problem that it was bad. In addition, there is a problem in that the work must be performed while being careful not to come into contact with a moving body such as the steps 3 in a narrow position.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems. When a specific step is searched, it is automatically checked without visually confirming the steps one by one. It is an object of the present invention to provide an escalator step search device that can be searched for at any time.

[0006]

To achieve the above object, according to the present invention, there is provided an identification mark provided on a step, and a reading mark provided on a stationary escalator body for reading the identification mark. Means, and a search means for searching for a target step and stopping at a predetermined position based on the identification signal read by the reading means. The identification mark is preferably provided for all steps. The search means may determine whether the identification signal read by the reading means is the identification signal of the identification mark of the target step, and may immediately stop driving the step when the target step is detected. The search means determines whether or not the identification signal read by the reading means is the identification signal of the identification mark of the target step, and in the case of the target step, stops the movement of the step after detecting and moving a set number of steps. You may make it do.

The identification mark may be provided on at least one step. Preferably, the identification mark is a barcode, and the reading means is a barcode reader. Further, the identification mark may be a reflection mark, and the reading unit may be a unit that emits light and detects reflected light. It is preferable to include an output unit that issues a display signal when a specific step is identified.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. The same or corresponding parts as those in the related art will be described with the same reference numerals. Embodiment 1 FIG. FIG. 1 shows a control block diagram of an escalator step search device according to Embodiment 1 of the present invention. That is, a barcode label 20 as an identification mark provided on each of the steps 3, a barcode reader 21 as reading means provided on the escalator main body 2 which is immovable for reading the barcode label 20, A search control device 22 is provided as search means for searching for a target step 3 based on the identification signal read by the barcode reader 21 and stopping at a predetermined position. The search control device 22 is computer-controlled and includes an arithmetic processing unit such as a CPU (not shown) and a memory such as a ROM and a RAM in which various data and a program for a predetermined processing procedure are written. The search control device 22 is connected to an input device 26 such as a numeric keypad for setting a step position as a search target.

The bar code reader 21 is installed at a position where the operation of the step 3 is not hindered, and the step 3
The bar code label 20 is attached to a position where the bar code can be read. FIG. 2 shows a specific example of installing the barcode label 20 and the barcode reader 21 on the escalator. The overall configuration of the escalator is completely the same as the conventional example shown in FIG. In this embodiment, as shown in FIG. 2A, a bar code label 20 is attached to the side end surface of the step plate 8 of each step 3, and as shown in FIGS. The code reader 21 is provided near the entrance to the upper machine room 5 where the steps 3 move horizontally.

Each step 3 is moved into and out of the upper machine room 5 by a step chain 4. At the entrance of the upper machine room 5, a pair of side rollers 23, 23 contacting the end face of the step 3 on the side of the step plate 8 is provided. Have been. The bar code reader 21 is disposed between the pair of side rollers 23, 23, and is fixed to a support plate 24 that rotatably supports the side rollers 23, 23. The upper machine room 5 is also provided with a control panel 25 for controlling the driving device 9 composed of a motor and an electromagnetic brake, and the above-mentioned search control device 22 is incorporated in the control panel 25.

Next, the search operation of the escalator step search device of the present invention will be described with reference to the flowcharts of FIGS. 3 (a) and 3 (b). FIG. 3A shows an example of a case where it is desired to immediately stop when the target step 3 is detected. First, the step 3 as a search target is set from the input device 26. The setting of the steps 3 may be performed by inputting an identification code of each step in a memory in advance and selecting a predetermined identification code from an input device, or by preparing a bar code table or the like and setting a predetermined code. The barcode of the step may be read. Next, the escalator is operated for down (DOWN) or up (UP) operation, and the bar code labels 21 attached to the side surfaces of the tread plate 8 are identified one by one by the bar code reader 21 installed near the side roller 23, and the desired step is performed. Then, it is compared with the identification signal of No. 3 and if it matches, a stop signal is output to stop the operation of the elevator.
Stopping the operation specifically stops the motor of the driving device 9 and operates the electromagnetic brake.

FIG. 3 (b) shows an example of a case where it is desired to stop after driving for a certain distance (or time, etc.) after detection. First,
Step 3 as a search target is set. Next, the escalator is operated to go down (DOWN) or up (UP),
The bar code reader 21 identifies the bar code labels 20 attached to the side surfaces of the treads 10 one by one by a bar code reader 21 and compares whether or not the bar code labels 20 match the target identification signal of the step 3. It is determined whether the elevator has moved by, for example, 5 steps), and at the time of moving a predetermined number of steps, a stop signal is output to stop the operation of the elevator. For example, when working in the upper machine room 5 or the lower machine room 6,
From the reading position by the barcode reader 21 to the upper machine room 5
Alternatively, it is stopped after being moved by the number of steps up to the lower machine room 6. When the work is performed in the stair area where the steps 3 are exposed, the work may be stopped after moving by the number of steps from the reading position of the barcode reader 21 to a predetermined position in the stair area. In this case, workability is greatly improved.

Embodiment 2 FIG. In the first embodiment, the barcode label 20 is attached to all the steps 3. However, the barcode label 20 is attached to only one specific step, and the number of movement steps after detecting the barcode label 20 is reduced. By setting, it is possible to stop at a predetermined stop position.

Embodiment 3. In Embodiments 1 and 2 described above, as shown in FIG. 1, when a target bar code label 20 is detected, a display as a display means for outputting a display signal simultaneously with a stop signal. A device 27 is provided. The display device 27 may appeal to hearing by emitting a sound signal, or appeal to vision by emitting a light signal to recognize a specific staircase. In the case of an optical signal, it is advantageous in places where noise is severe. Although a barcode label is used as an identification mark in the above embodiment, other identification marks may be used instead of a barcode. Also, without using code information, it is also possible to attach a reflection mark that only reflects light, irradiate light, and recognize a specific step by a method of receiving reflected light from the reflection mark by reading means. is there.

[0015]

As described above, according to the escalator step search device according to the first aspect of the present invention, the identification mark provided on the step and the immovable escalator main body for reading the identification mark are provided. Read means,
Search means for searching for the target step based on the identification signal read by the reading means and stopping at a predetermined position is provided, so that the target step is automatically searched for based on the read signal of the identification mark. This eliminates the need for conventional visual confirmation work, and dramatically improves workability. Also,
Since each step can be specified, it is possible to manage the construction history and the maintenance history for each step.

Further, according to the escalator step search device according to the second aspect, since the identification mark is provided for every step, each step can be managed individually.

Further, according to the escalator step search device according to claim 3, the search means determines whether or not the identification signal read by the reading means is the identification signal of the identification mark of the target step, and Since the driving of the step is immediately stopped in the case of the step to be performed, the position of the step can be easily specified in relation to the position of the reading unit.

Further, according to the escalator step search device according to claim 4, the search means determines whether the identification signal read by the reading means is the identification signal of the identification mark of the target step, and determines whether the identification signal is the target identification mark. In the case of a step to be performed, the movement of the step is stopped after moving by a set number of steps after detection, so that a specific step can be transported to a predetermined work position, and the work becomes convenient.

Further, according to the escalator step search device according to the fifth aspect, since the identification mark is provided on at least one step and searched, the configuration can be simplified.

According to the escalator step search device according to the sixth aspect, the identification mark is a bar code and the reading means is a bar code reader, so that it can be easily identified even if the number of steps is large. is there.

According to the escalator step search device according to the seventh aspect, the identification mark is a reflection mark, and the reading means is a means for emitting light and detecting the reflected light. it can.

Further, according to the escalator step search device according to the eighth aspect, the output means for issuing a display signal when a specific step is identified is provided. Step identification is assured.

[Brief description of the drawings]

FIG. 1 is a block diagram of an escalator step search device according to Embodiment 1 of the present invention.

FIG. 2 shows a specific example of mounting the barcode label and the barcode reader of FIG. 1; FIG. 2 (a) is a partial perspective view showing the vicinity of an upper machine room of an escalator; FIG.
Is an enlarged perspective view of the barcode label reading section of FIG.
FIG. 3C is a perspective view showing the steps to which the barcode label is attached.

3A and 3B show a search procedure principle of the step search device of FIG. 2; FIG. 3A is a flowchart for immediately stopping upon detection, and FIG. 3B is a stop after moving a set distance after detection; It is a flowchart at the time of making it.

FIG. 4 (a) is a perspective view of the entire appearance of the conventional escalator, partially cut away, and FIG. 4 (b) is the same figure (a).
It is an external appearance perspective view of the step.

[Explanation of symbols]

2 Escalator main body, 3 steps, 20 barcode label (identification mark), 21 barcode reader (reading means), 22 search control device (search means).

Claims (8)

[Claims] 1. An identification mark provided on a step, reading means provided on an escalator body immovable for reading the identification mark, and a target step based on an identification signal read by the reading means. An escalator step search device, comprising: search means for searching and stopping at a predetermined position. 2. The escalator step search device according to claim 1, wherein the identification mark is provided for all steps. 3. The search means determines whether the identification signal read by the reading means is an identification signal of an identification mark of a target step, and immediately stops driving of the step when the identification signal is the target step. 3. The step identification device for an escalator according to 2. 4. The search means determines whether the identification signal read by the reading means is the identification signal of the identification mark of the target step, and in the case of the target step, after detecting the target step, moves after a set number of steps. The step identification device for an escalator according to claim 2, wherein the movement of the step is stopped. 5. The escalator step search device according to claim 1, wherein the identification mark is provided on at least one step. 6. The escalator step search device according to claim 1, wherein the identification mark is a bar code, and the reading means is a bar code reader. 7. The identification mark is a reflection mark, and the reading means is means for emitting light and detecting the reflected light.
An escalator step search device according to [1]. 8. The escalator step search device according to claim 1, further comprising display means for issuing a display signal when a specific step is identified.