JP2000198656A - Operation device of passenger conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation device of passenger conveyer in which passengers can ride on the steps or the belt easily, while switching its operation speed. SOLUTION: A detecting sensor 13 to detect a passenger riding on a step 11 and to put out an output signal; and a control means to put out a low speed operation instruction in the normal condition, and to put out a high speed operation instruction to the power converter 3, according to the output signal, such as a controller 2; are provided, and when the passengers ride on, the conveyer is operated at the low speed, and after they have ridden on, it is changed to the high speed operation by a gentle acceleration set at 1 m/s2. Consequently, a fall down accident of an aged parson and a walking handicapped person can be prevented, and the safety is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor such as an escalator and a moving sidewalk, and more particularly to a passenger conveyor operating device capable of switching the operating speed of a step or a belt.

[0002]

2. Description of the Related Art In general, the operating speed of a passenger conveyor is constantly operating at a speed of 30 m / min, and the operating speed is constant.

[0003] On the other hand, as the actual usage status of the passenger conveyor, although the time zone differs depending on the installation location, the actual situation is that there are busy hours and off-peak hours everywhere. For this reason, for example, during the daytime or early morning,
During off-peak hours, such as late at night, the vehicle is driven for a long time with no passengers on board, and even if there is no load on passengers, energy is wasted due to loss due to running resistance. For this reason, in recent years, in the interest of protecting the global environment, high-speed operation is performed during busy hours to improve transportation efficiency, and pause or low-speed operation is performed during off hours to save energy. The need for planning has increased.

Therefore, conventionally, a detection sensor for detecting a passenger is provided in the vicinity of the entrance to normally operate the passenger conveyor at a low speed and switch to a high speed operation in response to the detection of the passenger by the sensor. A device has been proposed. Accordingly, when the passenger is not used, the low-speed operation is performed, so that it is possible to always save energy as compared with the passenger conveyor that performs the high-speed operation.

[0005] Examples of this type are disclosed in, for example, JP-A-61-291390 and JP-A-62-275990.
Japanese Unexamined Patent Publication (Kokai) No. H10-15095 can be mentioned.

[0006]

By the way, in the conventional passenger conveyor operating device described above, after the detection of the passenger by the detection sensor, it is set so that the switching from the low-speed operation to the high-speed operation is completed before the passenger gets in. Passengers are required to step on high-speed driving steps or belts. Although this is generally not a problem, for example, when the elderly or a person with a walking disability tries to use the passenger conveyor, it is sometimes found that it is difficult to get on a high-speed driving step or belt, and there is a risk of falling. there were.

[0007] In order to prevent unstable riding during speed switching, it is necessary to complete the switching from low-speed driving to high-speed driving before a passenger gets in.
In consideration of the walking speed of the passenger, it is necessary to set the detection sensor away from the entrance, so that an additional installation of a guide fence and the like is required, and an extra cost is required.

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation in the prior art, and has as its object to provide a driving apparatus for a passenger conveyor in which a passenger can easily get on a step or a belt while switching a driving speed. Is to provide.

[0009]

In order to achieve this object, the present invention comprises a three-phase AC power supply and a power converter connected to the three-phase AC power supply. In a passenger conveyor operating device capable of switching the operating speed of a step or a belt connected endlessly by supplying power to an electric motor through a detection sensor that detects a passenger and outputs an output signal, Control means for outputting a low-speed operation command to the power converter, and outputting a high-speed operation command to the power converter after the passenger gets on the step or belt according to the output signal. It is.

According to the present invention having the above-described structure, the control means normally outputs a low-speed operation command to the power converter to operate the steps or the belt at low speed. Then, when the detection sensor detects the passenger and outputs an output signal, the control means outputs a high-speed operation command to the power converter after the passenger gets on the step or the belt in accordance with the output signal, and outputs the high-speed operation to the step or the belt. Switch to operation. That is, the passenger gets on a step or belt that is performing low-speed operation, and is switched to high-speed operation after completing the operation. Thereby, the passenger can easily get on the step or the belt while switching the driving speed.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a passenger conveyor operating device according to an embodiment of the present invention.

FIG. 1 is an overall configuration diagram showing one embodiment of a passenger conveyor operating device of the present invention, and FIG. 2 is a perspective view showing an attachment position of a detection sensor provided in the passenger conveyor operating device of FIG.

FIG. 1 shows a passenger conveyor, for example, an escalator.
As shown in FIG. 1, a three-phase AC power supply 1 and this three-phase AC power supply 1
A control unit 2 connected to the control unit 2 and having an operation control circuit; a power converter 3 connected to the control unit 2 and performing inverter conversion;
An electric motor 4 driven by electric power supplied from the electric power converter 3, and a reduction gear 6 connected to the electric motor 4 to reduce the rotation of the electric motor 4 to a required speed and rotate the driving sprocket 5.
A drive chain 7 connected to the speed reducer 6, a first sprocket 8 that rotates following the drive sprocket 5 via the drive chain 7, and a step chain 9 that is wound around the first sprocket 8. A second sprocket 10 that is rotated by the first sprocket 8 by the step chain 9, a plurality of steps 11 attached to the step chain 9 and connected endlessly, and a movement that moves in synchronization with the step 11 As shown in FIG. 2, a handrail 12, a balustrade 14 erected on both sides of the step 11, a skirt guard 15 provided on both sides of the step 11, and a sill plate 16 arranged on the entrance floor are provided. I have.

The passenger conveyor operating device according to the present embodiment outputs a detection sensor 13 that detects a passenger and outputs an output signal, and outputs a low-speed operation command to the power converter 6 at normal times, and outputs the output signal to the output signal. Control means for outputting a high-speed operation command to the power converter 6 after the passenger gets on the step 11 accordingly, for example, the control unit 2 described above. Further, the detection sensor 13 is disposed at a position where a passenger who has got on the step 11 can be detected, for example, at the skirt guard 15, and the detection sensor 13 is formed of, for example, a photoelectric device. The light receiving units are installed so as to face each other. Further, the acceleration when switching from low-speed operation to high-speed operation is set to 0.1 m / s ² or less, for example, 0.1 m / s ² . Furthermore, the low-speed operation based on the low-speed operation command is set to, for example, 20 m / min.
It is set to 0 m. Here, for convenience of explanation,
Although the operation direction of the escalator will be described as ascending operation,
In the case of the descent operation, the position of the detection sensor may be changed according to the upside down of the entrance, and the basic structure is the same.

In this embodiment, normally, the control unit 2 outputs a low-speed operation command to the power converter 3 to operate the steps 11 at a low speed of 20 m / min. Here, the passengers use the escalator from the sill board 16 to the steps 1
After getting on 1, when passing through the detection sensor 13 irradiating light rays in a direction perpendicular to the moving direction of the steps 11,
The detection sensor 13 outputs an output signal to the control unit 2.
Along with this, the control unit 2 outputs a high-speed operation command to the power converter 3, the power converter 3 gradually increases the output frequency, and the motor 4 also gradually increases the rotation speed in synchronism therewith.
1 is accelerated at an acceleration of 0.1 m / s ² , and the operation is switched to a high-speed operation set at 30 m / min. When the vehicle reaches a driving speed of 30 m / min, the vehicle continues the ascent operation, and the passenger completes moving to the upper floor. At this time, the time from the detection of the passenger by the detection sensor 13 is measured by a measuring means (not shown), and a predetermined time period until the passenger reliably reaches the upper floor and gets off according to the floor height, the travel, and the speed is obtained. When reaching, a switching signal is output from the measuring means to the control unit 2. In response to this, the control unit 2 outputs a low-speed operation command to the power converter 3, the power converter 3 gradually reduces the output frequency, and the motor 4 also gradually reduces the rotation speed in synchronization with this.
The operation speed of the step 11 is switched to low-speed operation set at 20 m / min. In addition, when the detection sensor 13 detects another passenger during high-speed driving, the measuring means starts measurement again at that time, and the high-speed driving is maintained.

In the embodiment configured as described above, when the passenger gets on the escalator at normal time, the passenger gets on the step 11 performing low-speed operation, and is switched to high-speed operation after the completion of the entry. While doing so, the passenger can easily get into the steps 11. In addition, since the vehicle is operated at a low speed of 20 m / min during normal times, that is, when there are no passengers, energy can be saved. In addition, the operation is switched to a high-speed operation of 30 m / min after the passenger gets in, so that the transportation efficiency is maintained. be able to.

In this embodiment, the low-speed operation is performed at a rate of 20 minutes per minute.
m, but as a result of a survey of the elderly,
The driving speed at which passengers can easily get into the passenger conveyor is 1 per minute.
It was found to be 5-20 m. Also, if the passenger
Since acceleration is started after boarding 1, the vehicle can be used at the optimum speed at the time of boarding, but since energy consumption is proportional to speed, a lower speed can be set for energy saving. preferable. Furthermore, although the detection sensor 13 is configured by the photoelectric device, it may be configured by another device, for example, a reflective human body sensor, and provided on one of the left and right sides of the skirt guard 15. Further, a detection sensor may be provided on the balustrade 14.

FIG. 3 is an overall configuration diagram showing another embodiment of the passenger conveyor operating device of the present invention. The same components as those shown in FIG. 1 are denoted by the same reference numerals.

As shown in FIG. 3, a passenger conveyor operating device according to another embodiment is disposed near a entrance, and detects a passenger and outputs an output signal. After detecting this passenger, step 1
The control unit 2 outputs a high-speed operation command to the power converter 3 in accordance with the measurement signal, in addition to a timer 17 that measures a time until the vehicle 1 gets on and outputs a measurement signal. .

In the other embodiment, when the detection sensor 13b disposed near the entrance detects a passenger and outputs an output signal, the timer 17 sets the time after the detection sensor 13b detects the passenger. A predetermined time until the passenger gets on the step 11 is measured and a measurement signal is output. The control unit 2 outputs a high-speed operation command to the power converter 3 according to the measurement signal, the power converter 3 gradually increases the output frequency, and the motor 4 also gradually increases the rotation speed in synchronization with the output frequency. Switch to high-speed operation.

In another embodiment configured as described above, passengers are prevented from getting in when shifting from low-speed operation to high-speed operation to ensure safety, and the same effect as in the above-described embodiment is obtained. be able to.

[0022]

Since the present invention is configured as described above, the passenger gets on the step or belt that is operating at low speed, and is switched to high-speed operation after completing the entry. Can easily get on a step or a belt, whereby it is possible to prevent an elderly person or a walking disabled person from falling down, to improve safety, and to achieve energy saving.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing one embodiment of a passenger conveyor operating device of the present invention.

FIG. 2 is a perspective view showing a mounting position of a detection sensor provided in the passenger conveyor operating device of FIG. 1;

FIG. 3 is an overall configuration diagram showing another embodiment of the passenger conveyor operating device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-phase alternating current power supply 2 Control part 3 Power converter 4 Electric motor 5 Driving sprocket 6 Reduction gear 7 Driving chain 8 First sprocket 9 Step chain 10 Second sprocket 11 Step 12 Moving handrail 13, 13b Detection sensor 14 Parapet 15 Skirt Guard 16 Sill board 17 Timer

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshio Matsuzaki 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Japan Inside the Hitachi Building System Co., Ltd. (72) Inventor Takeki 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Ltd. Hitachi Building Systems Co., Ltd. (72) Inventor Hisao Chiba 1070 Ma, Hitachinaka-shi, Ibaraki F-term (reference) 3F321 DA05 DA07 DB03 DC01 DD01 EA01 EB07 EC07

Claims (5)

[Claims] 1. A power supply comprising: a three-phase AC power supply; and a power converter connected to the three-phase AC power supply. The three-phase AC power supply supplies power to an electric motor via the power converter to be connected endlessly. In a driving device of a passenger conveyor capable of switching the operating speed of a step or a belt, a detection sensor that detects a passenger and outputs an output signal, and normally outputs a low-speed operation command to the power converter, Control means for outputting a high-speed operation command to the power converter after the passenger gets on the step or belt in response to an output signal. 2. The passenger conveyor operating device according to claim 1, wherein the acceleration when switching from low-speed operation to high-speed operation is set to 0.1 m / s ² or less. 3. The passenger conveyor operating device according to claim 1, wherein said detection sensor is installed at a position capable of detecting a passenger riding on said step or belt. 4. The detection sensor is disposed in the vicinity of an entrance, and measures a time from when the detection sensor detects a passenger to when the passenger gets on the step or the belt to generate a measurement signal. The passenger conveyor operating device according to claim 1, further comprising a timer for outputting, wherein the control means outputs a high-speed operation command to the power converter in accordance with the measurement signal. 5. The passenger conveyor operating device according to claim 3, wherein the detection sensors are provided on skirt guards provided on both sides of the step or the belt.