JP6741033B2 - elevator - Google Patents

Description

TECHNICAL FIELD The present invention relates to an elevator that promptly rescues a passenger left in a car of an elevator, which has been shut down at a nearest floor or an evacuation floor in an emergency.

2. Description of the Related Art Conventionally, there is known an elevator that rescues passengers by controlling operation such as stopping at the nearest floor in an emergency such as an earthquake. The elevator car stopped at the nearest floor opens the door, and uses announcements and indications to guide the driver to get out of the car and turn off the lights inside the car. After that, when a predetermined time has elapsed, the door is closed and the operation suspension state is continued until the maintenance work by the maintenance staff is completed.

Further, the door is opened by pressing a door open button switch provided in the car so that passengers left behind in the elevator car in a resting state are not trapped.

Furthermore, an elevator having means for displaying the presence or absence of passengers in a car at a landing on a resting floor where operation is stopped, means for opening a door by pressing a landing button switch, and means for opening a door from a monitoring room have been proposed. (For example, patent document 1).

In a conventional elevator, a passenger left behind in a car needs to push a door open button switch to escape from the car.

JP-A-61-169470

However, it was an elevator without a door opening button switch inside the car, and even if there was a door opening button switch, if the door opening was not accepted for some reason, the passenger could not escape to the outside of the car and the passengers could not escape. There was a problem that he could not be rescued quickly.

Therefore, it is an object of the present invention to provide an elevator that can promptly rescue passengers left in the car of the elevator who have stopped operation in an emergency.

An elevator according to the present invention is an elevator that raises and lowers a car between halls provided on a plurality of floors in response to a hall call and a car call, and an elevator control unit that controls the raising and lowering of the car, and at least the car. A car door that opens and closes one doorway, a car door control unit that controls opening and closing of the car door based on a command from the elevator control unit, and a position at which the car is allowed to open the car door The door open position detecting means for detecting that there is a door open button switch provided in the car, the button switch group including the door open button switch is controlled, the elevator control unit and the first communication means. A button switch control unit that communicates via the elevator, the communication between the elevator control unit and the button switch control unit is interrupted, and the car door is opened by the door opening position detection means. When it is detected that the position is permitted, the car door is opened and closed at predetermined time intervals.

According to the above configuration, when the passenger left in the car of the elevator, which has stopped operation in an emergency, detects that the car is at a position where the car door is allowed to open by the door open position detection means. Since the car door opens and closes at predetermined time intervals, it is possible to quickly escape from the car.

Further, the elevator according to the present invention may further include passenger detection means in the car, and when the passenger detection means detects a passenger in the car, the car door may be opened and closed at predetermined time intervals. ..

According to the above configuration, since it is determined that there are passengers in the car to open and close the door, the passengers can escape to the outside of the car, and other passengers can be prevented from accidentally getting into the elevator that is out of order. be able to.

Further, the elevator according to the present invention may further include a load detection device in the car, and when the load detection device detects a passenger in the car, the car door may be opened and closed at predetermined time intervals.

According to the above configuration, since it is determined that there are passengers in the car to open and close the door, the passengers can escape to the outside of the car, and other passengers can be prevented from accidentally getting into the elevator that is out of order. be able to. Since the load detection device is generally installed in an elevator, it is possible to determine the presence/absence of passengers in the car without adding a new configuration.

In addition, the elevator according to the present invention may be configured such that when communication between the elevator control unit and the button switch control unit is interrupted, the car is stopped and stopped at the nearest floor due to a control operation.

According to the above configuration, the communication between the button switch control unit and the elevator control unit is interrupted, and even if the car door cannot be opened by the door opening button switch in the car, the operation is stopped at the nearest floor. Passengers left in the elevator car can escape to the outside of the car, so they can be rescued quickly.

According to the elevator of the present invention, it is possible to provide an elevator that can promptly rescue passengers left in the cage of an elevator that has stopped operation in an emergency.

It is a perspective view of the whole elevator concerning an embodiment of the present invention. It is the conceptual diagram which showed the entrance/exit of the elevator which concerns on 1st Embodiment of this invention seen from the car side. It is the flowchart which showed the series of processes which the elevator in 1st Embodiment of this invention performs. It is the conceptual diagram which showed the entrance/exit of the elevator which concerns on 2nd Embodiment of this invention seen from the car side. It is the flowchart which showed the series of processes which the elevator in 2nd Embodiment of this invention performs.

Hereinafter, modes for carrying out the present invention will be described with reference to the drawings.

[1] First Embodiment [1-1] Configuration of Elevator The following description will be made on the elevator according to the first embodiment. In addition, in each embodiment, the same components are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 is a perspective view of the entire elevator according to the embodiment of the present invention.

As shown in FIG. 1, the elevator 1 includes a car 5 that moves up and down in the hoistway 2 and a counterweight 6. The car 5 is guided by a pair of car rails 8 standing on the hoistway 2 and moves up and down in the hoistway 2. The counterweight 6 is guided by a pair of counterweight rails 9 standing on the descending path 2 and moves up and down in the hoistway 2. A machine room 26 is provided above the hoistway 2, and the machine room 26 is provided with an elevator drive device 4 that moves up and down the car 5, and an elevator control unit 3 that controls the elevator drive device 4. The car 5 and the counterweight 6 are suspended in a fishing bottle shape by a rope 7 wound around a sheave of the elevator drive device 4. The car 5 includes a car frame 51 to which one end of the rope 7 is connected and a car room 52 in which passengers ride. A car chamber 52 is mounted on the car frame 51 via a vibration-proof rubber (not shown).

The car room 52 has an opening/closing opening on the surface facing the hall, and is closed and opened by the car door 11. The car door drive device 15 is provided on the upper part of the car room 52 on the landing side. The car door drive device 15 controls the opening and closing of the car door 11 by the car door control unit 12 provided in the upper part of the car room 52 on the landing side. The car door drive device 15 includes a car door rail extending in the car doorway direction (not shown). The car door 11 is hung by a door hanger having a roller (not shown), and the roller of the door hanger rolls on the car door rail to open and close.

The hall 10 is provided with an entrance/exit provided so as to communicate with the entrance/exit of the car when the car 5 is landed, and is closed and opened by the landing door 13. The landing door 13 engages with the car door 11 when the car 5 is landed, and opens and closes in conjunction with the car door 11. Although FIG. 1 illustrates one stop floor (hall) for simplification, of course, there are two or more stop floors, and the effect of the present invention can be obtained if there are two or more stop floors. Of course.

In addition, in FIG. 1, the car door 11 and the landing door 13 are configured by double doors, but the invention is not limited to this configuration. It may be configured by four or more double swing doors, or may be configured by one or a plurality of single swing doors.

Reference numeral 14 is a door opening position detecting means for detecting whether or not the car door 11 and the landing door 13 are allowed to open when the car 5 is landed on the landing 10. The door opening position detection means 14 is composed of, for example, a magnetic proximity switch installed in the car 5 and a metal plate installed in a position corresponding to a range in which each door in the hoistway is allowed to open a door. It When the car 5 lands on each landing, if the magnetic proximity switch installed on the car 5 detects the plate installed on the landing, it is determined that the door can be opened.

FIG. 2 is a conceptual diagram showing the entrance/exit of the elevator according to the first embodiment of the present invention as viewed from the car side.

In FIG. 2, reference numeral 25 is a car floor, and 18 is a car operating device. The car operating device 18 includes a destination floor registration button switch 19, a door opening button switch 20, and an emergency notification means 21. The car 5 also includes a destination floor registration button switch 19 and a button switch control unit 22 that processes an input from the door opening button switch 20.

The destination floor registration button switch 19 is operated when a passenger gets in the car 5 and registers the destination floor. FIG. 2 shows a case in which two button switches for registering the first floor and a second floor are provided. That is, the case of an elevator for two stops is shown.

When the destination floor registration button switch 19 is operated and the destination floor is registered, the signal is input to the button switch control unit 22, and further, the button switch control unit 22 and the elevator control unit 3 via the first communication unit 23. The elevator control unit 3 issues a drive command to the elevator drive device 4 to move the car 5 up and down to the registered destination floor.

When the door opening button switch 20 is operated and the door opening is registered, the signal is input to the button switch control unit 22, and the button switch control unit 22 and the elevator control unit 3 via the first communication unit 23. The elevator control unit 3 communicates with the car door control unit 12, and the car door control unit 12 issues a door opening command to the car door driving device 15 to engage with the car door 11 and the car door 11. Door 13 is opened.

The emergency notification means 21 is composed of, for example, a button switch. The emergency notification means 21 is operated in an emergency. For example, the emergency notification means 21 is displayed as "telephone mark pictogram", "bell mark pictogram", "SOS", etc., and clearly indicates that it is an emergency. When the emergency notification means 21 is operated, a call can be made to the outside of the car 5 (for example, a manager's room or a monitoring center of a maintenance company) by an intercom (not shown). Further, when the emergency notification means 21 is operated, a signal for reporting the occurrence of an emergency is issued outside the car 5.

Further, the emergency notification means 21 communicates with the elevator control section 3 via the second communication means 24 different from the first communication means 23 used for communication between the button switch control section 22 and the elevator control section 3. ..

That is, the communication means between the button switch control section 22 and the elevator control section 3 used during normal use of the elevator and the communication means between the emergency notification means 21 and the elevator control section 3 used during an emergency are different. There is.

The first communication unit 23 and the second communication unit 24 are, for example, composed of electric wires covered with an insulating material.

By the way, the elevator control unit 3 constantly or appropriately monitors whether or not the communication with the button switch control unit 22 is normal. When some trouble occurs in the first communication means 23 and the communication between the button switch control unit 22 and the elevator control unit 3 is interrupted, the control operation is performed to ensure the safety of passengers in the car 5. There is a case where control is performed to land on the nearest floor and suspend the elevator 1.

In this case, in the conventional elevator, since the communication between the button switch control unit 22 and the elevator control unit 3 is interrupted, the car door 11 and the landing door that engages with the car door 11 are operated by operating the door opening button switch 20. 13 cannot be opened and the passengers in the car 5 will be confined in the car 5 until the maintenance staff arrives.

On the other hand, in the present embodiment, when some trouble occurs in the first communication unit 23 and the communication between the button switch control unit 22 and the elevator control unit 3 is interrupted, the door open position detection unit causes the car to be a door of the car. When it is detected that the position is allowed to open, the elevator control unit 3 communicates with the car door control unit 12, and the car door control unit 12 issues a door opening command to the car door driving device 15 to make a predetermined operation. At the time interval, the car door 11 and the landing door 13 that engages with the car door 11 can be opened for a predetermined time.

The predetermined time interval is an interval at which the door opening operation and the door closing operation are performed. Further, the door opening time is a time during which passengers inside the car 5 can evacuate to the outside of the car 5, and preferably the time when the door is open is a door opening time adopted by an elevator for persons with disabilities. It is good to be a second.

[1-2] Control of Elevator FIG. 3 is a flowchart showing a series of processes executed by the elevator in the first embodiment. A series of processes performed by the elevator control unit 3 and the car door control unit 12 in FIG. 2 can be performed by a processing device such as a CPU (Central Processing Unit) or a microcomputer. Further, such a series of processes may be realized by causing the elevator control unit 3 or the car door control unit 12 to execute a corresponding program. Then, such a program may be stored in a readable storage medium such as a flash memory, or may be stored in a storage unit (not shown) such as a ROM (Read Only Memory) included in each control unit. The same applies to the second embodiment described later.

First, the elevator control unit 3 constantly or appropriately monitors whether or not the communication with the button switch control unit 22 is normal, and determines whether the first communication unit 23 has lost communication (step S81 in FIG. 3). ).

Next, when the first communication means 23 determines that the communication is interrupted (YES), it is determined whether or not the car 5 is at the door open permission position according to the detection status of the door open position detection means 14 (Fig. 3 step S82).

Further, when it is determined that the car 5 is at the door open permission position (YES), the elevator control unit 3 issues a door open command of the car door 11 to the car door control unit 12, and the car door control unit 12 causes the car door control unit 12 to open the car door. The drive device 15 is driven to open the car door 11 and the landing door 13 that engages with the car door 11 (step S83 in FIG. 3 ).

Then, the elevator control unit 3 determines whether or not a predetermined time has elapsed after opening the car door 11 and the landing door 13 that engages with the car door 11 (step 84 in FIG. 3 ).

When it is determined that the predetermined time has passed after opening the car door 11 and the landing door 13 that engages with the car door 11 (YES), the elevator control unit 3 causes the car door 11 and the landing place that engages with the car door 11. The door 13 is closed (step 85 in FIG. 3).

Then, the elevator control unit 3 determines whether or not a predetermined time has elapsed after closing the car door 11 and the landing door 13 that engages with the car door 11 (step 86 in FIG. 3 ).

When it is determined that the predetermined time has passed after closing the car door 11 and the landing door 13 that engages with the car door 11 (YES), the elevator control unit 3 determines whether or not the maintenance work by the maintenance personnel is completed. A judgment is made (step 87 in FIG. 3).

Then, when the elevator control unit 3 determines that the restoration work by the maintenance personnel is not completed (NO), the elevator control unit 3 returns to step 83 of FIG. 3 and instructs the car door control unit 12 to open the car door 11. Then, the car door control unit 12 drives the car door driving device 15 to open the car door 11 and the landing door 13 engaged with the car door 11.

On the other hand, when the elevator control unit 3 determines that the restoration work by the maintenance personnel is completed (YES), the elevator control unit 3 ends the process of the first embodiment.

According to the process of the first embodiment, some failure occurs in the first communication unit 23, communication between the button switch control unit 22 and the elevator control unit 3 is interrupted, and the door open button connected to the button switch control unit 22. Even if the car door 11 and the landing door 13 that engages with the car door 11 cannot be opened by the switch 20, the car 5 allows the car door 11 to be opened by the door opening position detection means 14. When it is detected that the vehicle is in the closed position, the car door 11 and the landing door 13 engaged with the car door 11 are opened and closed at a predetermined time interval, so that the passengers in the car 5 are confined in the car 5. Possibility can be reduced.

[2] Second Embodiment [2-1] Configuration of Elevator In the elevator according to the first embodiment described above, the car 5 further includes a load detection device and passenger detection means. The description of the same configuration as that of the first embodiment will be omitted.

FIG. 4 is a conceptual diagram showing an entrance/exit of an elevator according to a second embodiment of the present invention as viewed from the car side.

In FIG. 4, reference numeral 16 is a load detection device installed below the car floor 25 and capable of determining the presence or absence of a passenger based on a change in load. Further, 17 is a passenger detection means capable of judging the presence or absence of passengers in the car 5.

The load detection device 16 is a known load detection device installed in a general elevator. For the load detection device 16, for example, a load cell is used.

As the passenger detecting means 17, an image pickup device capable of determining the presence or absence of a passenger from a captured still image or moving image, or a human sensor using infrared rays or ultrasonic waves is used.

The load detection device 16 is not limited to the above-described embodiment, and may include various switches or sensors as long as it has an effect of determining the presence or absence of a passenger. Further, the passenger detecting means 17 is not limited to the above-mentioned embodiment, and various cameras and sensors may be included as long as they have an effect of being able to determine the presence or absence of a passenger.

The load detection device 16 transmits the load applied to the car floor 25 to the elevator control unit 3. A control processing unit (not shown) provided in the elevator control unit 3 determines whether there is a passenger in the car 5 based on the received change in the load applied to the car floor 25.

Further, when the passenger detecting means 17 is an image pickup device, an image of the inside of the car 5 (photographed image) is transmitted to the elevator controller 3. The extraction processing unit (not shown) provided in the elevator control unit 3 processes the transmitted captured image to extract the motion of the passenger from the captured image. For example, the extraction processing unit extracts an area corresponding to a passenger from an imaged frame forming a captured image, and detects a movement of the passenger by detecting a change in the position of this area.

Next, the extraction processing unit transmits the extracted passenger motion data including whether or not there is a motion of the extracted passenger to a control processing unit (not shown) provided in the elevator control unit 3. The control processing unit determines whether or not there is a passenger in the car 5 based on the received operation data of the passenger.

Since the load detection device 16 and the passenger detection means 17 can both determine the presence or absence of passengers in the car 5, only one of them may detect the passengers in the car 5.

[2-2] Control of Elevator FIG. 5 is a flowchart showing a series of processes executed by the elevator in the second embodiment.

First, the elevator control unit 3 constantly or appropriately monitors whether or not the communication with the button switch control unit 22 is normal, and determines whether the first communication unit 23 has a communication interruption (step S91 in FIG. 5). ).

Next, when the first communication means 23 determines that the communication is interrupted (YES), it is determined whether or not the car 5 is at the door open permission position according to the detection status of the door open position detection means 14 (Fig. 5 step S92).

Further, when it is determined that the car 5 is at the door open permission position (YES), the elevator control unit 3 confirms that there is a passenger in the car 5 by the load detection device 16 and/or the passenger detection means 17 ( Step S93 of FIG. 5).

When it is determined that there are passengers in the car 5 (YES), the elevator control unit 3 issues an instruction to open the car door 11 to the car door control unit 12, and the car door control unit 12 drives the car door. The device 15 is driven to open the car door 11 and the landing door 13 that engages with the car door 11 (step 94 in FIG. 5). On the other hand, when it is determined that there are no passengers in the car 5 (NO), the process of the second embodiment ends.

In step 94 of FIG. 5, after opening the car door 11 and the landing door 13 that engages with the car door 11, it is confirmed by the load detection device 16 and/or the passenger detection means 17 that there is no passenger in the car 5. (Step 95 in FIG. 5).

When it is determined that there are no passengers in the car 5 (YES), the elevator control unit 3 issues a door closing command for the car door 11 to the car door control unit 12, and the car door control unit 12 drives the car door. The device 15 is driven to close the car door 11 and the landing door 13 that engages with the car door 11 (step 96 in FIG. 5).

With the above, the processing of the second embodiment ends.

According to the processing of the second embodiment, some failure occurs in the first communication unit 23, communication between the button switch control unit 22 and the elevator control unit 3 is interrupted, and the door open button connected to the button switch control unit 22. Even if the car door 11 and the landing door 13 that engages with the car door 11 cannot be opened by the switch 20, the car 5 allows the car door 11 to be opened by the door opening position detection means 14. Only when it is determined that there is a passenger in the car 5, the car door 11 and the landing door 13 that engages with the car door 11 are opened, and the car door 11 and the car door 11 are engaged. After opening the matching landing door 13, it is determined that there are no passengers in the car 5, and the door is closed. Therefore, the possibility that the passengers in the car 5 are trapped in the car 5 is reduced and It is possible to prevent other passengers from getting into the elevator that is out of order.

[3] Other Embodiments In the above-described first and second embodiments, the description has been given with reference to the diagram (two stops) of two destination floor registration button switches 19, but three or more destination floor registration button switches 19 ( Of course, the same effect can be obtained even with an elevator having three stops or more.

In the first and second embodiments, the elevator car is suspended in the nearest floor in an emergency, but it may be suspended in a specific landing such as a preset evacuation floor.

In the first and second embodiments, the destination floor registration button switch 19, the door opening button switch 20 and the emergency notification means 21 are described as button switches, but if the operation can be determined, the electrostatic type It may be another user interface (operating means) such as a switch, a touch panel, or voice recognition.

In the second embodiment, it is confirmed in step 93 of FIG. 5 that there are passengers in the car 5, and in step 95 of FIG. 5 that there is no passenger in the car 5, but during normal operation ( The presence/absence of passengers in the car 5 may be confirmed based on (the state in which there is no communication interruption of the first communication means).

The above description of the embodiments should be considered as illustrative in all points and not restrictive. The scope of the invention is indicated by the claims rather than the embodiments described above. Further, the scope of the present invention is intended to include meanings equivalent to the claims and all modifications within the scope.

1 Elevator 2 Hoistway 3 Elevator control unit 4 Elevator drive device 5 Car 6 Balancing weight 7 Rope 8 Car rail 9 Balancing weight rail 10 Landing place 11 Car door 12 Car door control unit 13 Landing door 14 Door opening position detection means 15 Car door drive Device 16 Load detection device 17 Passenger detection means 18 In-cab operation device 19 Destination floor registration button switch 20 Door open button switch 21 Emergency notification means 22 Car floor 23 First communication means 24 Second communication means 51 Car frame 52 Car room

Claims (4)

An elevator that raises and lowers a car between halls provided on multiple floors in response to a hall call and a car call,
An elevator controller that controls the raising and lowering of the car,
A car door that opens and closes at least one doorway provided in the car;
A car door control unit that controls opening and closing of the car door based on a command from the elevator control unit,
A door opening position detecting means for detecting that the car is in a position where the car door is allowed to open,
A door open button switch provided in the car,
A button switch control unit that controls a button switch group including the door open button switch, and that communicates with the elevator control unit via a first communication unit,
Have
While the communication between the elevator control unit and the button switch control unit is interrupted, the communication between the elevator control unit and the car door control unit is maintained , and the car is the car by the door open position detection means. when it is detected that a position to be allowed to doors with door open, the front SL on the basis of a command from the elevator controller, the car-door control unit opens and closes the car door at a predetermined time interval,
elevator. The car further comprises passenger detection means,
When the passenger detecting means detects a passenger in the car,
Open and close the car door at predetermined time intervals,
The elevator according to claim 1. The car further comprises a load detection device,
When the load detection device detects a passenger in the car,
Open and close the car door at predetermined time intervals,
The elevator according to claim 1. When the communication between the elevator control unit and the button switch control unit is interrupted, the car is stopped at the nearest floor by the control operation and stopped.
The elevator according to any one of claims 1 to 3.