JP2022000399A - Passenger conveyor - Google Patents

Abstract

To provide a passenger conveyor capable of detecting abnormality of a floor plate consisting of plural boards.SOLUTION: A passenger conveyor has a driving unit for driving the passenger conveyor, a floor plate installed at the entrance of the passenger conveyor, a passenger detecting sensor for detecting the presence or absence of passengers at the entrance, a floor sensor for detecting floor plate conditions, a passenger directivity sensor for detecting the passenger directivity at the entrance, a storage part for storing a normal condition of the floor plate installed at the entrance, a determination part for determining the presence or absence of abnormality from the comparison between the floor plate condition detected by the floor sensor and the normal condition of the floor plate stored in the storage part or from the passenger directivity detected by the passenger directivity sensor, and a driving control part which performs control to stop the passenger conveyor when the presence of abnormality is determined by the determination part.SELECTED DRAWING: Figure 2

Description

The present invention relates to passenger conveyors such as escalators and moving walkways.

Conventionally, passenger conveyors such as escalators and moving walkways are provided with a floor plate that closes the machine room (see, for example, Patent Document 1).
The floor plate is opened and closed mainly during maintenance and inspection.

As a device for detecting the opening / closing of the floor plate, for example, a floor plate opening / closing detection switch is attached to the end of the machine room (see, for example, Patent Document 2).
This floor plate open / close detection switch detects the open / close of the floor plate by being pushed into the floor plate when the floor plate is normally installed.

Japanese Unexamined Patent Publication No. 2017-19643 Japanese Unexamined Patent Publication No. 2014-65546

Depending on the installation environment of the passenger conveyor, when the machine room is enlarged and the floor is extended, the number of floor plates may be multiple.
However, in this case, the conventional device for detecting the abnormality of the floor plate may not be able to detect the abnormality of the intermediate floor plate among the three floor plates, for example.

An object of the present invention is to provide a passenger conveyor capable of detecting an abnormality in a floor plate composed of a plurality of sheets.

In addition, the above and other purposes and novel features of the present invention will be clarified by the description and the accompanying drawings of the present specification.

The passenger conveyor of the present invention detects the state of the drive device for driving the passenger conveyor, the floor plate installed at the entrance / exit of the passenger conveyor, the passenger detection sensor for detecting the presence / absence of passengers at the entrance / exit, and the state of the floor plate. It has a floor sensor and a passenger orientation sensor that detects the orientation of passengers at the entrance / exit.
Further, the passenger conveyor of the present invention has a storage unit for storing the normal state of the floor plate installed at the entrance / exit, and a storage unit for storing the state of the floor plate detected by the floor sensor and the floor plate stored in the storage unit. Judgment unit that determines the presence or absence of an abnormality from the comparison with the normal state or the directionalness of the passenger detected by the passenger orientation sensor, and the passenger conveyor when the determination unit determines that there is an abnormality. It has a drive control unit that controls to stop.

According to the passenger conveyor of the present invention described above, the judgment unit compares the state of the floor plate detected by the floor sensor with the normal state of the floor plate stored in the storage unit, or by the passenger directivity sensor. The presence or absence of an abnormality is determined from the detected directivity of the passenger. Then, the drive control unit controls to stop the passenger conveyor when an abnormality is determined by the determination unit.
As a result, when an abnormality in the entire floor plate including the intermediate portion of the floor plate, which was conventionally impossible to detect, is detected, the operation of the passenger conveyor can be stopped.

Issues, configurations and effects other than the above will be clarified by the following description of the embodiments.

It is a schematic side sectional view which shows the whole structure of a passenger conveyor. It is a block diagram which shows the transmission of information from a passenger detection sensor to a drive device in Example 1. FIG. It is sectional drawing near the lower machine room in a normal state (no passengers). It is sectional drawing near the lower machine room in a normal state (with passengers). It is sectional drawing of the vicinity of the lower machine room in a state where the floor plate is raised (no passengers). It is sectional drawing of the vicinity of the lower machine room in a state where the floor plate is raised (with passengers). It is sectional drawing of the vicinity of the lower machine room in a state where a floor plate has fallen (no passengers). It is sectional drawing of the vicinity of the lower machine room in a state where a floor plate has fallen (with passengers). It is a flowchart which shows the sequence which detects the abnormality of a floor plate.

Hereinafter, embodiments and examples according to the present invention will be described with reference to text or drawings. However, the structure, materials, and various other specific configurations shown in the present invention are not limited to the embodiments and examples taken up here, and can be appropriately combined and improved without changing the gist. Is. In addition, elements not directly related to the present invention are not shown.

The passenger conveyor of the present invention has a drive device for driving the passenger conveyor, a floor plate installed at the entrance / exit of the passenger conveyor, and a passenger detection sensor for detecting the presence / absence of passengers at the entrance / exit.
Further, the passenger conveyor of the present invention includes a floor sensor that detects the state of the floor plate and a passenger directivity sensor that detects the directivity of passengers at the entrance / exit.
Further, the passenger conveyor of the present invention has a storage unit that stores the normal state of the floor plate, and the state of the floor plate detected by the floor sensor and the normal state of the floor plate stored in the storage unit. A judgment unit that determines the presence or absence of an abnormality based on the comparison or the orientation of the passenger detected by the passenger orientation sensor, and a drive that controls to stop the passenger conveyor when the determination unit determines that there is an abnormality. It has a control unit.

In the above passenger conveyor, when the judgment unit further detects that there are no passengers by the passenger detection sensor, the state of the floor plate detected by the floor sensor and the normal state of the floor plate stored in the storage unit are normal. It is possible to determine the presence or absence of an abnormality by comparing with the state, and when the passenger detection sensor detects that there is a passenger, the presence or absence of an abnormality can be determined from the directionality of the passenger detected by the passenger orientation sensor. be.

In the passenger conveyor described above, it is possible to further configure that at least one of the passenger detection sensor, the floor sensor, and the passenger directivity sensor is provided on the photoelectric pole installed at the entrance / exit.

In the passenger conveyor described above, it is possible to further configure a skirt guard to have at least one of a passenger detection sensor, a floor sensor, and a passenger directivity sensor.

In the passenger conveyor described above, the passenger detection sensor or the floor sensor may further have a function of a passenger directivity sensor and may also serve as a passenger directivity sensor.

The above passenger conveyors include escalators, moving walkways, and the like.
Passenger conveyors such as escalators and moving walkways transport passengers by moving the steps on which the passengers board.

In the passenger conveyor described above, the drive device drives the passenger conveyor.
In addition, the floor plate is installed at the entrance / exit. Then, one to three floor plates are installed at each entrance / exit (entrance and exit) of the passenger conveyor.
Like the conventional passenger conveyor, the drive device is composed of a motor, a speed reducer, and the like, and is installed in a machine room under the floor plate of the entrance / exit. That is, the floor plate is installed on the upper surface of the machine room.

In the passenger conveyor described above, the passenger detection sensor detects the presence or absence of passengers at the entrance / exit.
The passenger detection sensor can be installed, for example, on a photoelectric pole. For example, one photoelectric pole is provided in front of the floor plate (on the side opposite to the step) and one on each side of the path through which passengers pass.
In addition, the passenger detection sensor can be installed at the entrance / exit side of the skirt guard or at the entrance / exit side of the balustrade.

In a conventional passenger conveyor in which a passenger detection sensor is installed on a photoelectric pole, a projector is provided on one of the two photoelectric poles on the left and right, and a light receiver is provided on the other photoelectric pole. Then, the light from the floodlight toward the light receiver is blocked by the passengers, thereby detecting that the passengers have passed.
In the above passenger conveyor, when the passenger detection sensor is installed on the photoelectric pole, the configuration is different from the configuration of the passenger detection sensor installed on the photoelectric pole of the conventional passenger conveyor. Is also possible. The latter configuration of the passenger detection sensor includes, for example, a configuration in which the passenger detection sensor is installed on the photoelectric pole so that the detection range of the passenger detection sensor is directed toward the floor plate side from the photoelectric pole.

In the above passenger conveyor, when the passenger detection sensor is installed on the entrance / exit side of the skirt guard, for example, the passenger detection sensor is installed so that the detection range of the passenger detection sensor faces the floor plate side. It can be configured.
In the above passenger conveyor, when a passenger detection sensor is installed on the entrance side of the balustrade, for example, a configuration in which light is directed from a floodlight provided on one balustrade to a light receiver provided on the other balustrade. , The passenger detection sensor can be installed so that the detection range of the passenger detection sensor faces the side of the floor plate.

In addition to the passenger detection sensor, the passenger conveyor further includes a floor sensor and a passenger directivity sensor.

The floor sensor detects the condition of the floor plate. The floor plate is normally installed on the upper surface of the machine room. On the other hand, when the floor plate is removed during maintenance or when the floor plate is dropped for some reason, an opening is generated in the floor plate portion.
The floor sensor can be installed, for example, on a photoelectric pole, a portion of the skirt guard on the entrance / exit side, a portion of the balustrade on the entrance / exit side, and the like.
The floor sensor is installed so that the surface of each floor plate is included in the detection range so that the overall state of one to three floor plates can be detected. This makes it possible to detect whether or not an opening is formed in each floor plate portion.

The passenger directivity sensor detects the directivity of the passenger at the entrance / exit. The directivity of the passenger at the entrance is horizontal (front-back direction or left-right direction) when there is no abnormality in the passenger and the floor plate, and downward when the passenger falls into the opening created in the floor plate. ..
The passenger directivity sensor can be installed, for example, on a photoelectric pole, a portion of the skirt guard on the entrance / exit side, a portion of the balustrade on the entrance / exit side, and the like.
The passenger directivity sensor is installed so that the position of the passenger on each floor plate is included in the detection range in order to detect the directivity of the passenger at the entrance / exit.

The passenger conveyor is provided with three types of detection contents: a passenger detection sensor, a floor sensor, and a passenger directivity sensor.
Of these three types of sensors, it is also possible to use the functions of two or more types of sensors in one sensor. For example, a configuration in which the passenger detection sensor also has the functions of the floor sensor and the passenger directivity sensor, a configuration in which the floor sensor also has the functions of the passenger directivity sensor, and the like can be considered. In this way, when the functions of two or more types of sensors are shared by one sensor, the detection range of the sensors is set so that the respective functions can be realized.

Further, when the sensor is installed on the photoelectric pole, it is possible to individually install a plurality of sensors having different detection contents on the photoelectric pole. For example, a passenger detection sensor having the same configuration as the conventional passenger detection sensor and a floor sensor or a passenger directivity sensor may be installed at different locations on the photoelectric pole.

Further, the passenger conveyor described above has a storage unit, a determination unit, and a drive control unit.
The storage unit stores the normal state of the floor plate.
The judgment unit is based on the comparison between the state of the floor plate detected by the floor sensor and the normal state of the floor plate stored in the storage unit, or from the directivity of the passenger detected by the passenger directivity sensor. Determine if there is an abnormality.
The drive control unit controls to stop the passenger conveyor when the determination unit determines that there is an abnormality.
These storage units, determination units, and drive control units can be configured to operate by a computer program.

The storage unit can be configured by a memory (storage device) or the like.

The judgment unit compares the state of the floor plate detected by the floor sensor with the normal state of the floor plate stored in the storage unit, and determines that the two states are normal if they match. If the two states do not match, it is judged that there is an abnormality.
In addition, the judgment unit determines that the directivity of the passenger detected by the passenger directivity sensor is normal when it is in the horizontal direction (front-back direction or left-right direction), and that there is an abnormality when it is in the downward direction. to decide.
Further, the determination unit can adopt, for example, a configuration that outputs an abnormality signal when it is determined that there is an abnormality, or a configuration that sends an abnormality announcement.

More preferably, when the judgment unit detects that there are no passengers by the passenger detection sensor, the state of the floor plate detected by the floor sensor is compared with the normal state of the floor plate stored in the storage unit. The presence or absence of an abnormality is determined, and when the presence of passengers is detected by the passenger detection sensor, the presence or absence of an abnormality is determined from the directionality of the passengers detected by the passenger orientation sensor.
With this configuration, when there are passengers, the floor plate on the other side of the passenger as seen from the floor sensor is hidden by the passenger's legs, luggage, etc., and even if it is not detected by the floor sensor, the passenger orientation Abnormalities can be detected by using the passenger's directionality detected by the sensor.
Therefore, the presence or absence of an abnormality can be determined by a method suitable for each case of the presence or absence of passengers.

According to the passenger conveyor described above, the judgment unit compares the state of the floor plate detected by the floor sensor with the normal state of the floor plate stored in the storage unit, or from the detected directivity of the passenger. , Judge the presence or absence of abnormality. Then, the drive control unit controls to stop the passenger conveyor when the determination unit determines that there is an abnormality.
As a result, the operation of the passenger conveyor can be stopped when an abnormality is detected in any of the floor plates including the intermediate portion of the floor plate, which was conventionally impossible to detect the abnormality.

In the above passenger conveyor, when the passenger detection sensor or the floor sensor has the function of the passenger directional sensor and also serves as the passenger directional sensor, the passenger directional sensor may not be separately provided. Passenger orientation can be detected. As a result, the number of sensors can be reduced as compared with the configuration in which the passenger directivity sensor is separately provided.

Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

(Example 1)
FIG. 1 shows a schematic side sectional view showing an overall configuration of a passenger conveyor to which an embodiment of the present invention is applied.

In the passenger conveyor 1 shown in FIG. 1, a plurality of steps 15 are arranged so as to be able to circulate from the upper entrance / exit 2 on the upper floor to the lower entrance / exit 3 on the lower floor.
Each of the entrances 2 and 3 is used as a place where passengers using the passenger conveyor 1 get on or get off from step 15.
On both sides of the moving step 15, a balustrade 16 and a handrail 17 that follows the movement of the step 15 are installed. Further, a skirt guard 9 is provided under the balustrade 16.

An upper machine room 4 is provided under the floor of the upper entrance / exit 2, and a lower machine room 5 is provided under the floor of the lower entrance / exit 3.
A floor plate 7 is normally attached to the upper surface 6 of each machine room 4 and 5, and by removing the floor plate 7 only during maintenance and inspection, maintenance and inspectors can go to each machine room 4 and 5. Can be entered and exited.
In the passenger conveyor 1 shown in FIG. 1, three floor plates 7 are attached to the upper surfaces 6 of the respective machine rooms 4 and 5.

A drive device 12 is installed in the upper machine room 4.
The drive device 12 is composed of a motor and a speed reducer, and operates the passenger conveyor 1.
Further, a control device 13 for controlling the operation of the passenger conveyor 1 is installed in the upper machine room 4 or the lower machine room 5. In the passenger conveyor 1 shown in FIG. 1, the control device 13 is installed in the upper machine room 4.

Photoelectric poles 8 are installed at the upper entrance / exit 2 and the lower entrance / exit 3. One photoelectric pole 8 is installed in front of each of the entrances 2 and 3 (on the side opposite to step 15) and on each of the left and right sides of the path through which passengers pass.
A passenger detection sensor 10 that detects the presence or absence of passengers is installed on the photoelectric poles 8 at the entrances 2 and 3, respectively.

Further, a passenger detection sensor 11 for detecting the presence or absence of passengers is installed on the side of the entrances 2 and 3 of the skirt guard 9.

The passenger conveyor 1 normally operates only when there are passengers, and operates at a slow speed or stops when there are no passengers.

In the first embodiment, the present invention is applied to the passenger conveyor 1 shown in FIG.
Further, in the first embodiment, the passenger detection sensor 11 installed on the side of the entrances 2 and 3 of the skirt guard 9 not only detects the presence or absence of passengers, but also the open / closed state of the floor plate 7 and the directivity of the passengers. Configure to detect.
That is, the passenger detection sensor 11 installed on the skirt guard 9 has the functions of a floor sensor and a passenger directivity sensor in addition to the functions of the passenger detection sensor, and has a configuration in which three types of sensors are used in combination.

FIG. 2 shows a block diagram showing the transmission of information from the passenger detection sensor 11 to the drive device 12 in the first embodiment.

As shown in FIG. 2, the control device 13 includes a drive control unit 13a, a determination unit 13b, and a storage unit 13c.
The control device 13 includes, for example, a control circuit, a CPU (Central Processing Unit), a memory (storage device), and the like.
The drive control unit 13a, the determination unit 13b, and the storage unit 13c can be configured to operate by a computer program.

The storage unit 13c stores the floor plate 7 and the normal state of the passengers at the entrances 2 and 3 respectively. The storage unit 13c can be configured by a memory (storage device) or the like.
The determination unit 13b determines the normal state of the floor plate 7 and passengers at the entrances 2 and 3 stored in the storage unit 13c, and the state of the floor plate 7 and passengers detected by the passenger detection sensor 11. By comparison, it is determined whether or not an abnormality has occurred in the floor plate 7 or the passengers.
Further, the determination unit 13b determines whether or not an abnormality has occurred based on the directivity of the passenger detected by the passenger detection sensor 11.
The drive control unit 13a transmits a command to start or stop the operation to the drive device 12 based on the information determined by the determination unit 13b, and controls the operation of the passenger conveyor 1.

Next, the operation of detecting an abnormality by the passenger detection sensor 11 in this embodiment will be described with reference to FIGS. 3 to 8.
3 to 8 are cross-sectional views of the vicinity of the lower machine room 5 on the lower entrance / exit 3 side of the passenger conveyor 1 of FIG.

First, a cross-sectional view in a normal state is shown in FIGS. 3 and 4. FIG. 3 shows the case where there are no passengers, and FIG. 4 shows the case where there are passengers.
Further, in FIG. 4, the traveling direction of step 15 is ascending, and the passenger 50 passes over the floor plate 7 on the upper surface of the lower machine room 5 and gets into step 15 from the lower entrance 3 side. Is shown. Hereinafter, in FIGS. 6 and 8, the traveling direction of step 15 is the same as that in FIG.

In FIGS. 3 and 4, the detection range 20 of the passenger detection sensor 11 extends over three floor plates 7 from the floor plate 7 on the front side to the floor plate 7 on the back side when viewed from the passenger detection sensor 11.
Further, as shown in FIG. 4, the legs of the passenger 50 passing over the floor plate 7 are also included in the detection range 20 of the passenger detection sensor 11.
As shown in FIGS. 3 and 4, under normal conditions, the three floor plates 7 are flat.

There are mainly two patterns of abnormalities in the floor plate 7, one is the floating of the floor plate 7, and the other is the falling of the floor plate 7.

Cross-sectional views of the floor plate 7 in a raised state are shown in FIGS. 5 and 6. FIG. 5 shows the case where there are no passengers, and FIG. 6 shows the case where there are passengers.
In FIGS. 5 and 6, the front side of the middle floor plate 7 among the three floor plates 7 is in a raised state.
As shown in FIG. 5, when there are no passengers, the front side of the intermediate floor plate 7 is greatly raised, and the floor plate 7 is slanted. Since the intermediate floor plate 7 whose front side is lifted and slanted is included in the detection range 20 of the passenger detection sensor 11, the passenger detection sensor 11 causes the floor plate 7 to be lifted and slanted. Can be detected.
On the other hand, as shown in FIG. 6, when there are passengers, the floor plate 7 is pushed down by the weight of the passengers 50, so that even if the front side of the intermediate floor plate 7 tries to rise, it hardly rises.

A cross-sectional view of the floor plate 7 in a dropped state is shown in FIGS. 7 and 8. FIG. 7 shows the case where there are no passengers, and FIG. 8 shows the case where there are passengers.
In FIGS. 7 and 8, the intermediate floor plate 7 of the three floor plates 7 is in a state of falling inward from the upper surface of the lower machine room 5, and an opening is opened in the portion where the intermediate floor plate 7 was. It is happening.
As shown in FIG. 7, in the case of no passengers, the opening formed in the portion where the intermediate floor plate 7 was located is included in the detection range 20 of the passenger detection sensor 11, so that the passenger detection sensor 11 is used. , It is possible to detect an abnormality in which the floor plate 7 has fallen and an opening has occurred.
As shown in FIG. 8, when there are passengers, an opening is formed in the portion where the intermediate floor plate 7 was located, and the floor plate 7 is dropped by the passenger detection sensor 11 as in the case without passengers. It is possible to detect an abnormality in which an opening has occurred.
Further, as shown in FIG. 8, when the passenger 50 steps into the opening when there are passengers, the passenger 50 falls, and as shown by the arrow in FIG. 8, the passenger 50 is given a downward directivity. Occurs. Since the legs of the passenger 50 are included in the detection range 20 of the passenger detection sensor 11, the passenger detection sensor 11 can detect an abnormality in which the passenger 50 has fallen and has a downward directivity.

As described above, the passenger detection sensor 11 can detect the lift and fall of the floor plate 7 and the downward directivity due to the fall of the passenger 50.

Further, also on the upper entrance / exit 2 side of the passenger conveyor 1 of FIG. 1, the passenger detection sensor 11 installed on the upper entrance / exit 2 side of the skirt guard 9 is the upper machine in the same manner as in FIGS. 3 to 8. The state of the floor plate 7 on the upper surface of the chamber 4 and the directivity of the passenger 50 can be detected.

Next, a process of detecting an abnormality in the floor plate 7 by the passenger detection sensor 11 will be described.
FIG. 9 shows a flowchart of the process of detecting the abnormality of the floor plate 7. The process shown in the flowchart in FIG. 9 is executed in the control device 13 based on the detection content of the passenger detection sensor 11.

As shown in FIG. 9, first, the passenger detection sensor 10 or the passenger detection sensor 11 detects whether or not there is a passenger 50 on the passenger conveyor 1 (S1).

In S1, when there is no passenger (No in S1), the determination unit 13b has the normal state of the floor plate 7 stored in the storage unit 13c and the state of the floor plate 7 detected by the passenger detection sensor 11. And see the displacement of the floor plate 7 (S2).

Then, the determination unit 13b determines whether or not the floor plate 7 has an opening based on the displacement of the floor plate 7 (S3).
When the passenger detection sensor 11 detects the opening in S3 (Yes in S3), the drive control unit 13a gives a command and sends an abnormal announcement (S4). Further, the drive control unit 13a disables the passenger conveyor 1 (S5) and ends the sensing.

When the passenger conveyor 1 is operating at a slow speed, the drive control unit 13a transmits a stop command to the drive device 12, and after an emergency stop, the drive control unit 13a operates the passenger conveyor 1 in the same manner as when the operation is stopped. Disables startup and ends sensing.

If the passenger detection sensor 11 does not detect the opening in S3 (No in S3), the operation of the passenger conveyor 1 is continued.
Then, returning to S1, the passenger detection sensor 10 or the passenger detection sensor 11 detects whether or not the passenger 50 is on the passenger conveyor 1.

On the other hand, in S1, when there are passengers (Yes in S1), the passenger detection sensor 11 detects the directivity of the passenger 50 (S6).
Then, the determination unit 13b determines whether or not the directivity of the passenger 50 is downward (S7). The case where the directivity of the passenger 50 is downward is the case where the passenger 50 steps into the opening created by the fall of the floor plate 7, as shown in FIG.

In S7, when the directivity of the passenger 50 is downward (Yes in S7), the drive control unit 13a transmits a stop command to the drive device 12 and makes an emergency stop of the passenger conveyor 1 (S8).
After that, the drive control unit 13a gives a command and sends an abnormal announcement (S4). Further, the drive control unit 13a disables the passenger conveyor 1 (S5) and ends the sensing.

In S7, when the directivity of the passenger 50 is not downward (No in S7), the operation of the passenger conveyor 1 is continued.
Then, returning to S1, the passenger detection sensor 10 or the passenger detection sensor 11 detects whether or not the passenger 50 is on the passenger conveyor 1.

In this way, the presence / absence of the passenger 50, the presence / absence of an abnormality in the floor plate 7 as a whole, and the directivity of the passenger 50 are detected, respectively, and if there is an abnormality in the directivity of the floor plate 7 or the passenger 50, the passenger conveyor It is possible to disable the operation of the passenger conveyor 1 and stop the operation of the passenger conveyor 1.

According to the first embodiment described above, the state of the floor plate 7 detected by the passenger detection sensor 11 by the determination unit 13b of the control device 13 and the normal state of the floor plate 7 stored in the storage unit 13c of the control device 13 The presence or absence of an abnormality is determined from the comparison with the state or from the directionality of the passenger 50 detected by the passenger detection sensor 11. Then, when the drive control unit 13a of the control device 13 determines that there is an abnormality by the determination unit 13b, the drive control unit 13a controls to stop the passenger conveyor 1.
As a result, the operation of the passenger conveyor 1 can be stopped when an abnormality in the entire floor plate 7, including the intermediate portion of the floor plate 7, which was previously undetectable, is detected.

Further, according to the first embodiment described above, the passenger detection sensor 11 also serves as a floor sensor and a passenger directivity sensor, and the passenger detection sensor 11 detects the state of the floor plate 7 and the directivity of the passenger 50. Can be done.
As a result, the number of sensors can be reduced as compared with the configuration in which the floor sensor and the passenger directivity sensor are installed separately from the passenger detection sensor 11.

(Modification example)
In the first embodiment, as shown in FIG. 1, the passenger detection sensors 11 are installed on the sides of both the entrances 2 and 3 of the skirt guard 9, but one of the entrances (the upper entrance 2 or the lower entrance 2 or the lower entrance 2) is installed. It is also possible to configure the passenger detection sensor 11 to be installed only on the port 3) side.
For example, when the passenger conveyor 1 is used with the traveling direction of step 15 fixed (upward only or downhill only), the entrance / exit of the skirt guard 9 on which passengers ride (upward lower entrance / exit, downhill). It is conceivable to provide the passenger detection sensor 11 only on the side of the upper entrance / exit).

In the first embodiment, the passenger detection sensor 11 installed on the entrances 2 and 3 of the skirt guard 9 also serves as a passenger detection sensor, a floor sensor, and a passenger directivity sensor.
The installation position of the passenger detection sensor, the floor sensor, and the passenger directivity sensor, and the function and detection range of each sensor are not limited to the configuration of the first embodiment. For example, a sensor may be arranged at the entrances 2 and 3 of the balustrade 16 shown in FIG.

For example, the sensor installed on the skirt guard can be used only as the floor sensor, or the floor sensor and the passenger directional sensor can be used together, and the sensor installed on the photoelectric pole can be used as the passenger detection sensor and the passenger directional sensor, or the passenger. It is also possible to configure only the detection sensor.

It is also possible to configure the sensors installed on the photoelectric pole to realize the functions of the passenger detection sensor, the floor sensor, and the passenger directivity sensor.
For example, if a sensor whose detection range is diagonally below the front is installed on each of the two photoelectric poles, the passenger detection sensor, the floor sensor, and the passenger directivity sensor can be used in combination.
Further, for example, a passenger detection sensor using a floodlight and a light receiver similar to the conventional passenger detection sensor provided on the photoelectric pole is used, and another sensor provided on the photoelectric pole whose detection range is diagonally forward and downward is the floor. A configuration that doubles as a sensor and a passenger directional sensor is also possible.

The present invention is not limited to the above-described embodiments and examples, and includes various modifications. For example, the above-described embodiments and examples have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations.

1 Passenger conveyor, 2 Upper entrance / exit, 3 Lower entrance / exit, 4 Upper machine room, 5 Lower machine room, 6 Machine room upper surface, 7 Floor plate, 8 Photoelectric pole, 9 Skirt guard, 10, 11 Passenger detection sensor, 12 Drive Equipment, 13 control unit, 13a drive control unit, 13b judgment unit, 13c storage unit, 15 steps, 16 railings, 17 handrails, 20 detection range, 50 passengers

Claims (5)

The drive device that drives the passenger conveyor and
The floor plate installed at the entrance of the passenger conveyor and
A passenger detection sensor that detects the presence or absence of passengers at the entrance / exit, and
A floor sensor that detects the state of the floor plate and
A passenger directivity sensor that detects the directivity of passengers at the entrance / exit, and
A storage unit that stores the normal state of the floor plate installed at the entrance / exit,
From the comparison between the state of the floor plate detected by the floor sensor and the normal state of the floor plate stored in the storage unit, or from the directivity of the passenger detected by the passenger directivity sensor. , Judgment unit to judge the presence or absence of abnormality,
A passenger conveyor having a drive control unit that controls to stop the passenger conveyor when it is determined by the determination unit that there is an abnormality. When the passenger detection sensor detects that there are no passengers, the determination unit determines the state of the floor plate detected by the floor sensor and the normal state of the floor plate stored in the storage unit. The presence or absence of an abnormality is determined by comparing the above, and when the presence or absence of a passenger is detected by the passenger detection sensor, the presence or absence of an abnormality is determined from the directionality of the passenger detected by the passenger orientation sensor. The passenger conveyor according to 1. The passenger conveyor according to claim 1, wherein at least one of the passenger detection sensor, the floor sensor, and the passenger directivity sensor is provided on a photoelectric pole installed at the entrance / exit. The passenger conveyor according to claim 1, wherein at least one of the passenger detection sensor, the floor sensor, and the passenger directivity sensor is provided on the skirt guard. The passenger conveyor according to claim 1, wherein the passenger detection sensor or the floor sensor has a function of the passenger directivity sensor and also serves as the passenger directivity sensor.

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