CN111819145B

CN111819145B - Elevator with a movable elevator car

Info

Publication number: CN111819145B
Application number: CN201880090031.7A
Authority: CN
Inventors: 小松理
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2018-03-07
Filing date: 2018-03-07
Publication date: 2022-03-15
Anticipated expiration: 2038-03-07
Also published as: JPWO2019171493A1; WO2019171493A1; JP6824466B2; CN111819145A

Abstract

In the elevator of the present invention, when a disaster occurs, all the cars (L1-L4) are operated by disaster control and are kept in standby for closing the doors at evacuation floors. Thereafter, only the car (L3) closes the door (11) and performs evacuation operation using only the door (12). At this time, when the landing button (6) or the landing button (7) is operated at the evacuation floor, the car (L1, L2, L4) performs a door opening operation. On the other hand, since the car (L3) does not open the door (11), a voice message is sent from a broadcasting device in the car (L1) or (L4) to notify the outside that the door (11) of the car (L3) is stopped.

Description

Elevator with a movable elevator car

Technical Field

The present invention relates to an elevator, and more particularly, to an elevator in which a car is provided with a plurality of doors.

Background

In recent years, elevators have appeared which perform disaster control operations in the event of disasters such as fires, earthquakes, and power outages.

For example, in a conventional elevator operating device described in patent document 1, when a fire is detected, a car is caused to travel to a preset evacuation floor by disaster control operation, the car is opened and then closed, and the car is caused to wait at the evacuation floor. The elevator of patent document 1 is provided with a display device for displaying to the outside the state where there is a delayed passenger in the car waiting for the door to be closed. Therefore, when the presence of passengers in the car is indicated by the indication device, the car is opened by an operator such as a firefighter at an evacuation floor operating a landing button or by an operator remotely operating the car from a monitoring room.

In addition, for example, in the conventional elevator control device described in patent document 2, when occurrence of a disaster is detected, the elevator car is caused to travel to an evacuation floor by disaster control operation, and the elevator door is opened. At this time, the elevator control device determines whether or not a passenger is present in the car based on the detection result of the passenger presence detection device. When the elevator control device determines that no passenger is present, the door closing operation is performed. On the other hand, when it is determined that the passenger is present, the door closing operation is invalidated.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 61-169470

Patent document 2: japanese Kokai publication Hei-1-143776

Disclosure of Invention

Problems to be solved by the invention

In recent years, a structure in which two doors are provided in one car has been developed.

However, such an elevator provided with a car with two doors is not considered at all in patent document 1 and patent document 2.

Here, it is assumed that the elevator of patent document 1 includes a car with two doors, and a case where the car performs evacuation operation is considered. At this time, when the display device indicates that there is a passenger in the car, the car performs any of the following operations by operating a landing button of the evacuation floor or remotely operating the car from the monitoring room. As a result, there is a problem that the evacuation operation after the control operation cannot be smoothly performed.

(a) The method comprises the following steps When the car is on standby with the doors closed, doors corresponding to landings affected by a fire open, and smoke or gas may flow into the car.

(b) The method comprises the following steps When the car is traveling, the car may stop between floors upon receiving a door open command. At this time, the refuge passengers are trapped in the car. Alternatively, after the car has traveled to the evacuation floor, there is a possibility that the door corresponding to the hall affected by the fire will be opened.

In patent document 2, it is assumed that the elevator includes a car with two doors, and the car is performing evacuation operation. The elevator control device performs a door closing operation when it is determined that no passenger is present, and invalidates the door closing operation when it is determined that a passenger is present. Therefore, when an operator such as a firefighter rides in the car for evacuation guidance, the door cannot be closed. As a result, there is a problem that the evacuation operation after the control operation cannot be smoothly performed.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator which has at least one car with a plurality of doors and which can smoothly perform evacuation operation by the car.

Means for solving the problems

The elevator of the invention is provided with: a car having a first door provided on a first surface and a second door provided on a second surface different from the first door; and a control device that controls operation of the car, wherein the control device controls evacuation operation of the car when a disaster occurs in a building in which the elevator is installed, as follows: when a landing button provided in a landing is operated while the first door is closed and the second door is used to control the evacuation operation, the first door is kept closed by disabling the operation, and a signal indicating that the first door is not open is output to the outside.

Effects of the invention

In the elevator of the present invention, when a disaster occurs in the building, the first door is closed and the evacuation operation is performed using the second door, and when a landing button provided in the landing is operated during the evacuation operation, the operation is invalidated to maintain the closed state of the first door and to output a signal indicating that the first door is not open, so that it is possible to prevent the door from being opened by mistake at normal times, which may be affected by the fire, and to perform the evacuation operation smoothly.

Drawings

Fig. 1 is an explanatory view showing a landing of an elevator according to embodiment 1 of the present invention.

Fig. 2 is a block diagram showing the structure of an elevator according to embodiment 1 of the present invention.

Fig. 3 is a flowchart showing an operation of an elevator according to embodiment 1 of the present invention.

Detailed Description

Embodiment 1.

Next, an elevator according to embodiment 1 of the present invention will be described with reference to fig. 1 to 3. Fig. 1 is an explanatory view showing a landing of an elevator according to embodiment 1 of the present invention. Fig. 2 is a block diagram showing the structure of an elevator according to embodiment 1 of the present invention. Fig. 3 is a flowchart showing an operation of an elevator according to embodiment 1 of the present invention.

The elevator of embodiment 1 has a plurality of cars, and group management control is performed on these cars.

In the example of fig. 1, 4 cars are group-managed as 1 group. Hereinafter, these cars are referred to as a car L1, a car L2, a car L3, and a car L4, respectively. The number of cars is not limited to 4, and may be any number. In addition, although only 1 group is described here for the sake of simplicity of description, for example, a plurality of groups may be provided for each bank.

As shown in fig. 1, the car L1 and the car L3 are disposed at positions facing each other with the landing 14 interposed therebetween. The car L2 and the car L4 are disposed at positions facing each other across the landing 14.

Landing buttons

6 and 7 are provided at the landing 14. In the hall 14, passengers operate the

hall buttons

6 and 7 to register hall calls. For this hall call registration, the group control device 1 described later assigns the most suitable 1 car from among the cars L1 to L4, and causes the assigned car to travel to the floor on which the hall call registration is performed.

In fig. 1, two

landing buttons

6 and 7 are provided in common to the 4 cars L1 to L4, but the present invention is not limited to this case, and any number of landing buttons may be provided. In fig. 1, the

landing buttons

6 and 7 are provided with two buttons that specify the upward direction and the downward direction as the traveling direction of the car. However, not limited to this case, when the

landing buttons

6 and 7 are provided at the lowermost layer, as shown in fig. 2, only the upward buttons are provided in the

landing buttons

6 and 7. Similarly, when the

landing buttons

6 and 7 are provided on the uppermost layer, only the buttons in the downward direction are provided on the

landing buttons

6 and 7.

Cars L1, L2, L4 each have 1 door 11. These doors 11 are arranged facing the landing 14. On the other hand, the car L3 has

doors

11 and 12 in two directions. In the car L3, the

doors

11 and 12 are disposed at positions facing each other. The car L3 has both

doors

11 and 12 on all floors including the evacuation floor. Here, an example is given in which the door 11 and the door 12 are disposed at opposite positions, but the present invention is not limited to this case, and the door 11 may be provided on one surface of the car L3, and the door 12 may be provided on another surface different from the one surface.

Of the 2

doors

11, 12 of the car L3, the door 11 is provided on the side facing the landing 14, similarly to the doors 11 of the other cars L1, L2, L4. In a normal state, the car L3 is operated in the normal operation mode using the door 11 provided on the side facing the landing 14, similarly to the other cars L1, L2, and L4.

On the other hand, the door 12 of the car L3 is provided facing the fire-resistant area inner floor 15 of the building. When the operation mode of the car L3 is switched to the evacuation operation mode in the event of a disaster such as a fire, an earthquake, or a power failure, the car L3 performs evacuation operation of passengers staying in the building only with the doors 12 leading to the landings 15 in the fire-resistant area.

Next, the operation of the elevator according to embodiment 1 will be briefly described. The cars L1, L2, and L4 have two operation modes, i.e., a normal operation mode and a disaster control operation mode. On the other hand, the car L3 has three operation modes, i.e., a normal operation mode, a disaster control operation mode, and an evacuation operation mode.

Suppose a fire now occurs in a building. The operation mode of all of the cars L1 to L4 is switched from the normal operation mode to the disaster control operation mode by the group control device 1. Thus, the operation of the cars L1 to L4 becomes disaster control operation. In the disaster control operation, the cars L1 to L4 travel to a preset evacuation floor, and the doors are opened at the evacuation floor to allow the passengers in the cars to get off. After a predetermined time has elapsed after the door is opened, the cars L1 to L4 are closed. Thereafter, the cars L1, L2, and L4 wait in a closed state at the evacuation floor. The evacuation floor is set to an arbitrary floor in advance, and is generally set to a floor provided with an entrance of a building communicating with the outside.

On the other hand, the group control device 1 also switches the operation mode from the disaster control operation mode to the evacuation operation mode for the car L3. Then, the group control device 1 transmits a signal indicating that the evacuation operation mode has been switched to the management room of the building. Thus, the management room of the building guides passengers in the building by voice messages through the broadcasting devices on the respective floors so as to move to the fire-resistant regional inner-floor station 15, and the passengers are evacuated to the outside of the building using the car L3.

At the time point when the operation mode is switched to the evacuation operation mode, the car L3 starts evacuation operation using only the doors 12. During the evacuation operation, the door 11 is kept closed. During evacuation operation, the car L3 travels to the uppermost floor temporarily, and the door 12 is opened to allow passengers at the inner-layer station 15 in the fire-resistant area to ride on the elevator. Next, the cars L3 descend one by one to the lower floors, and passengers at the fire-resistant zone inner floor 15 are allowed to take their elevator cars at all the floors. Then, the vehicle runs to an evacuation floor, and passengers in the car are evacuated by getting off the car.

In the elevator according to embodiment 1, when an operator such as a firefighter or another passenger operates the landing button 6 or the landing button 7, the doors 11 of all of the cars L1 to L4 waiting at the floor are opened. This allows an operator such as a fire fighter or other passenger to confirm whether or not a passenger is retained in the cars L1 to L4. However, when the car L3 is in the evacuation operation and the door 12 on the landing 15 side in the fire-resistant area is being used, the door 11 of the car L3 is not opened even if the operator such as a firefighter or other passenger operates the landing button 6 or the landing button 7.

Next, the internal structure of the elevator according to embodiment 1 will be described with reference to fig. 2. As shown in fig. 2, the elevator of embodiment 1 includes a group control device 1, individual control devices 8-1, 8-2, 8-3, and 8-4, cars L1 to L4, and

landing buttons

6 and 7 provided on individual floors.

The group control device 1 includes a disaster control operation detection unit 2, all car door opening/closing control units 3, a broadcast determination unit 4, and a hall button operation detection unit 5.

On the other hand, each of the controllers 8-1, 8-2, 8-3, and 8-4 is provided for each of the elevator cars L1 to L4. Specifically, each control device 8-1 is provided for the car L1, each control device 8-2 is provided for the car L2, each control device 8-3 is provided for the car L3, and each control device 8-4 is provided for the car L4.

The respective control devices 8-1, 8-2, 8-4 have the same configuration. Specifically, each of the controllers 8-1, 8-2, and 8-4 has a door opening/closing controller 9-1, 9-2, and 9-4 and a broadcasting unit 10-1, 10-2, and 10-4, respectively.

On the other hand, each control device 8-3 is configured to have a door opening/closing control unit 9-3, a broadcast unit 10-3, and an evacuation operation door opening/closing control unit 13-3.

Hereinafter, each constituent element of fig. 2 will be described.

First, a general operation of the group control device 1 will be described. The group control device 1 controls the operations of all the cars L1, L2, L3, and L4 in the group by the respective control devices 8-1, 8-2, 8-3, and 8-4.

Next, each component of the group management apparatus 1 will be described.

The disaster control operation detection unit 2 includes a disaster occurrence determination unit that determines whether or not a disaster such as a fire, an earthquake, or a power failure has occurred when the disaster has occurred. Further, the detection of the occurrence of a disaster is performed by, for example, the following method. In a building, various sensors such as a fire sensor, an earthquake sensor, and a power failure sensor are installed in advance as a disaster occurrence detection device. Further, a switch or a contact for switching ON/OFF (ON/OFF) when each sensor detects occurrence of a disaster is provided in advance for each sensor. When the respective sensors detect occurrence of a disaster, the switches or contacts are turned ON/OFF to output a disaster control operation signal to the group management device 1. The disaster occurrence determination unit of the disaster controlled operation detection unit 2 determines whether or not a disaster has occurred based on the presence or absence of reception of the disaster controlled operation signal.

The disaster control operation detection unit 2 includes a disaster control operation unit, and when it is determined that a disaster has occurred, the disaster control operation unit transmits a mode switching command for switching the operation mode of the cars L1, L2, L3, and L4 to the disaster control operation mode to each of the control devices 8-1, 8-2, 8-3, and 8-4, and controls the cars L1, L2, L3, and L4 to perform disaster control operation.

The disaster controlled operation detection unit 2 includes an evacuation operation unit that transmits a mode switching command for switching the operation mode from the disaster controlled operation mode to the evacuation operation mode after the disaster controlled operation is performed to each of the control devices 8-3, and controls the car L3 to perform the evacuation operation.

In the disaster control operation mode, when the cars in the group are in a door-closed standby state at the evacuation floor and the

landing buttons

6 and 7 are detected to be operated based on the information from the landing button operation detection section 5, all the car door opening/closing control sections 3 output door opening instructions to the respective control devices 8-1, 8-2, 8-3, and 8-4. Further, even when the operation mode of the car L3 is the evacuation operation mode and the car L3 is in the evacuation operation, the door opening command is output to all of the control devices 8-1, 8-2, 8-3, and 8-4. At this time, each of the controllers 8-3 invalidates the door opening command for the car L3, and maintains the closed state of the doors 11 of the car L3.

When the disaster control operation is started in all of the cars L1 to L4 in response to the command from the disaster control operation detection unit 2, the broadcast determination unit 4 outputs a stop guidance command for outputting a voice message indicating that all of the cars L1 to L4 have stopped to a broadcast device (not shown) provided in the hall 14 on each floor. An example of the voice message at this time is "stop from the number 1 machine to the number 4 machine". "and the like. The voice message is generated in advance and stored in the memory.

Further, when the

landing button

6 or 7 is operated on any floor other than the evacuation floor in the evacuation operation mode, the broadcast determination unit 4 outputs an evacuation guidance instruction to a broadcast device (not shown) provided at the landing 14 on the floor on which the

landing button

6 or 7 is operated, based on information from the landing button operation detection unit 5, as follows: voice messages indicating that the cars L1, L2, and L4 are stopped and that the car L3 is performing evacuation operation at the hall 15 in the fire zone are output. An example of the voice message in this case is "the evacuation operation is being performed by the current 3 rd machine. In the case of intended use, please wait at the inner layer station in the refractory area. "and the like. The voice message is generated in advance and stored in the memory.

When the landing button 6 or the landing button 7 is operated at the evacuation floor, the broadcast determination unit 4 selects a car located closest to the car L3 from the cars adjacent to the operated landing button 6 or landing button 7 based on the information from the landing button operation detection unit 5, and selects the car L1 or the car L4. Then, the broadcast determination unit 4 outputs the following door opening stop guidance command from a broadcast device (not shown) provided in the selected car L1 or the selected car L4: a voice message indicating that the door 11 of the car L3 is suspended from opening the door without opening the door is output. An example of the voice message at this time is "no door of 3 rd machine is opened". The voice message is generated in advance and stored in the memory.

In this way, the broadcast deciding section 4 constitutes an output deciding section that decides what kind of voice message is to be output from which output section when the hall button operation detecting section 5 detects that the

hall button

6 or 7 is operated, and outputs one of the stop guidance command, the evacuation guidance command, and the door open stop guidance command to the broadcasting sections 10-1 to 10-4.

As described above, in embodiment 1, the car L3 has three operation modes, that is, the normal operation mode, the disaster control operation mode, and the evacuation operation mode. The car L3 has a door 11 serving as a normal-time door used in the normal operation mode and a door 12 serving as an evacuation-time door used in the evacuation operation mode. When a disaster occurs, the cars L1 to L4 first travel to a preset evacuation floor by disaster control operation, and after passengers get off, they wait for closing of the doors of the evacuation floor. Thereafter, only the car L3 performs evacuation operation while only the door 12 used for evacuation is used and the door 11 is kept closed. This enables the evacuation operation after the disaster control operation to be smoothly performed.

In embodiment 1, when the

landing button

6 or 7 of the evacuation floor is operated, the broadcast determination unit 4 outputs an open door stop guidance command and outputs a voice message indicating that the door 11 of the car L3 has stopped being opened and has not been opened. Therefore, it is possible to prevent an operator such as a fire fighter from mistakenly recognizing that the door 11 of the car L3 cannot be opened and prying open the door. As a result, it is possible to prevent a failure such as an open-door stop (open-door stop) caused by prying open the elevator door of the car L3. Further, since the existing broadcasting device or display device installed in the hall or the car is used without newly installing a separate device, the cost increase can be avoided without impairing the design of the car and the hall. Further, the broadcast determination unit 4 selects a car located closest to the car L3 from the cars adjacent to the operated hall button 6 or hall button 7 based on the information from the hall button operation detection unit 5, and therefore, the voice message is sent from a position close to the person who has operated the

hall buttons

6 and 7, and the audibility of the voice message can be improved.

The landing button operation detection section 5 detects whether or not the

landing buttons

6 or 7 provided on each floor are operated in the control operation mode and the evacuation operation mode. When detecting that the

landing button

6 or 7 has been operated, the landing button operation detection section 5 transmits information indicating the presence operation and information on the installation floor and installation position of the operated

landing button

6 or 7 to the broadcast determination section 5. When the floor on which the

landing button

6 or 7 is operated is an evacuation floor, the landing button operation detection section 5 transmits information indicating that the

landing button

6 or 7 is operated on the evacuation floor to all the car door opening/closing control sections 3.

Next, each of the control devices 8-1, 8-2, 8-3, and 8-4 will be described.

The controllers 8-1, 8-2, 8-3, and 8-4 have respective control boards for controlling the operation of the elevator cars L1, L2, L3, and L4.

Door opening and closing control parts 9-1, 9-2, 9-3 and 9-4 are respectively arranged in the control devices 8-1, 8-2, 8-3 and 8-4. The door opening/closing control units 9-1, 9-2, 9-3, and 9-4 receive door opening and door closing commands from all the car door opening/closing control units 3 in the group control device 1. During normal operation, the door opening/closing control units 9-1, 9-2, 9-3, and 9-4 perform door opening and closing operations of the cars L1, L2, L3, and L4, respectively, in accordance with the door opening command and the door closing command. In the disaster control operation mode, the door opening/closing control units 9-1, 9-2, 9-3, and 9-4 open the doors 11 in accordance with the door opening command when the cars L1 to L4 are waiting to be closed at the evacuation floors. On the other hand, when the car L3 is in the evacuation operation, the door opening/closing control unit 9-3 invalidates the door opening command and maintains the closed state of the doors 11 even if it receives the door opening command.

The broadcasting parts 10-1, 10-2, 10-3, 10-4 are respectively arranged in the control devices 8-1, 8-2, 8-3, 8-4. The broadcast units 10-1, 10-2, 10-3, and 10-4 output voice messages as signals to be output from broadcast devices (not shown) provided in the cars L1 to L4 or broadcast devices (not shown) provided on the floors in accordance with the stop guide command, the evacuation guide command, and the door open stop guide command. Thus, the broadcasting units 10-1, 10-2, 10-3, 10-4 and the broadcasting device function as the following output units: the signal to be output is output to the outside in accordance with any of the stop guidance command, evacuation guidance command, and door open stop guidance command from the broadcast determination unit 4 in the group control device 1.

Here, the description has been given taking a voice message as an example of a signal to be output, but the present invention is not limited to this case. For example, when a display device is provided in an elevator, the display device may be used instead of a broadcasting device to display character information on a display screen of the display device. Alternatively, a broadcast unit may be provided in a management room provided remotely, and the broadcast determination unit 4 may transmit the stop guidance command, the evacuation guidance command, and the door opening stop guidance command to the broadcast unit in the management room. In this case, the broadcast unit of the management room instructs a broadcast device or a display device installed in the building to output a voice message or a text message.

The door opening/closing control unit 13-3 is provided in each control device 8-3 during evacuation operation. The door opening/closing control unit 13-3 controls the opening/closing operation of the door 12 when the car L3 is operated in the evacuation operation mode. In addition, the door opening/closing control unit 9-3 in each control device 8-3 opens and closes the door 11, whereas the door opening/closing control unit 13-3 opens and closes the door 12 during the evacuation operation.

Next, the operation of the elevator according to embodiment 1 will be described with reference to fig. 3.

Fig. 3 shows a case where 4 cars L1 to L4 are operated by the disaster control operation after waiting for closing of an evacuation floor, and then the car L3 is switched to the evacuation operation mode and operated by using the door 12 on the side of the fire-resistant block inner landing 15. In fig. 3, after the disaster control operation is performed, the car L3 enters a state of not being at an evacuation floor from the evacuation floor by the evacuation operation.

In fig. 3, first, in step S1, the disaster occurrence determination unit of the disaster controlled operation detection unit 2 determines that a disaster has occurred by receiving a disaster controlled operation signal from each switch or contact.

In step S2, the disaster control operation unit of the disaster control operation detection unit 2 transmits a mode switching command for switching the operation mode from the normal operation mode to the disaster control operation mode to each of the control devices 8-1, 8-2, 8-3, and 8-4, and controls the cars L1, L2, L3, and L4 to perform disaster control operation. Thus, the cars L1 to L4 travel to the evacuation floor by the fire control operation. The cars L1 to L4 perform door opening operation of the door 11 at the evacuation floor, and passengers in the cars L1 to L4 get off the elevator. When a predetermined time set in advance has elapsed after the door is opened, the cars L1 to L4 close the opened doors. Thus, all the cars L1 to L4 are in a door-closing standby state at the evacuation floor.

In step S3, the evacuation operation unit of the disaster control operation detection unit 2 outputs a mode switching command to each of the control devices 8-3 to switch the operation mode of the car L3 from the disaster control operation mode to the evacuation operation mode. Thereby, the car L3 switches to the evacuation operation mode, and starts evacuation operation from the evacuation floor. During the evacuation operation, only the door 12 facing the landing 15 in the fire-resistant area is opened and closed, and the door 11 is kept closed.

In step S4, the landing button operation detection section 5 in the group control device 1 determines whether or not the landing button 6 has been operated at the evacuation floor. When it is determined as a result of the determination that the evacuation floor landing button 6 is operated, the flow proceeds to step S8. Otherwise, the process proceeds to step S5.

In step S5, the landing button operation detection section 5 in the group control device 1 determines whether or not the landing button 7 has been operated at the evacuation floor. When it is determined as a result of the determination that the evacuation floor landing button 7 is operated, the flow proceeds to step S6. Otherwise, the process returns to step S4.

In step S6, the door opening/closing control units 3 in all the car doors in the group control device 1 output door opening commands to the respective control devices 8-1 to 8-4. The respective controllers 8-1, 8-2, and 8-4 operate the elevator cars L1, L2, and L4 to open the doors by the door opening/closing controllers 9-1, 9-2, and 9-4. However, since the door 11 cannot be opened while the car L3 is in the evacuation operation, each control device 8-3 does not respond to the door opening command.

In step S7, the broadcast determination unit 4 in the group control device 1 selects a car that has issued a voice message indicating that the car L3 has stopped door opening. That is, the broadcast deciding unit 4 selects the car L4 as the car located closest to the car L3 from the cars adjacent to the operated landing button 7. The broadcast determination unit 4 outputs the following door opening stop guidance instruction to the broadcast unit 10-4 of each control device 8-4: a voice message indicating that the car L3 is not open the door is output from a broadcasting device provided in the car L4. The broadcast unit 10-4 thereby sends the voice message from the broadcast device provided in the car L4.

In step S8, the door opening/closing control units 3 in all the car doors in the group control device 1 output door opening commands to the respective control devices 8-1 to 8-4. The respective control devices 8-1, 8-2, and 8-4 operate the cars L1, L2, and L4 to open the doors by the elevator door opening/closing control units 9-1, 9-2, and 9-4. However, since the door 11 cannot be opened while the car L3 is in the evacuation operation, each control device 8-3 does not respond to the door opening command.

In step S9, the broadcast determination unit 4 in the group control device 1 selects a car that has issued a voice message indicating that the car L3 has stopped door opening. That is, the broadcast deciding unit 4 selects the car L1 as the car located closest to the car L3 from the cars adjacent to the operated landing button 6. The broadcast determination unit 4 outputs a door opening stop guidance command for outputting a voice message indicating that the car L3 is not opened to the broadcast unit 10-1 of each of the control devices 8-1. Thereby, the broadcast unit 10-1 sends the voice message from the broadcast device provided in the car L1.

As described above, in the elevator according to embodiment 1, when a disaster occurs, the cars L1 to L4 travel to a preset evacuation floor by disaster control operation, and wait for closing of the doors at the evacuation floor after passengers get off the elevator. Only the car L3 has the

doors

11 and 12, and evacuation operation is performed with the door 11 closed, using only one door 12 used for evacuation. At this time, at the evacuation floor, the doors 11 of the cars L1, L2, and L4 are opened by operating the

landing buttons

6 and 7, and it is possible to confirm from the outside whether or not there is a delayed passenger escaping from the cars. On the other hand, even when the

landing buttons

6 and 7 are operated at the evacuation floor, the door 11 is not opened when the car L3 is in the evacuation operation, and therefore, there is a possibility that a firefighter or the like may mistakenly think that the door 11 cannot be opened. Therefore, from the other car L1 or L4 closest to the car L3, a voice message indicating that the door 11 of the car L3 is stopped from opening the door is issued. This can prevent a malfunction such as door opening stop due to prying by a fire fighter or the like. As a result, in the elevator according to embodiment 1, the disaster control operation and the evacuation operation can be smoothly performed.

In the above description, for ease of understanding, the door 11 is described as a normal-time door and the door 12 is described as an evacuation-time door, but the use of the door is not particularly limited to normal time and evacuation time. Both

doors

11 and 12 may be used in normal times, and only the door 12 facing the fire-resistant area inner landing 15 may be used in evacuation.

In embodiment 1, the group control device 1 and the respective control devices 8-1, 8-2, 8-3, and 8-4 are configured to include controllers. The controller includes a processor and a memory. The functions of the respective units shown in fig. 2 constituting the group control device 1 and the respective control devices 8-1, 8-2, 8-3, and 8-4 are implemented by software, firmware, or a combination thereof, except for the

landing buttons

6 and 7. That is, the functions of the disaster control operation detection section 2, all the car door opening/closing control sections 3, the broadcast determination section 4, and the hall button operation detection section 5 of the group control device 1, and the functions of the door opening/closing control section 9-1 of each control device 8-1, the door opening/closing control section 9-2 of each control device 8-2, the door opening/closing control section 9-3 of each control device 8-3, the evacuation operation door opening/closing control section 13-3, and the elevator door opening/closing control section 9-4 of each control device 8-4 are realized by software, firmware, or a combination thereof. The broadcasting units 10-1, 10-2, 10-3, and 10-4 provided in the respective control devices 8-1, 8-2, 8-3, and 8-4 have a function of issuing a command for outputting a specific broadcast to a broadcasting device made of dedicated hardware provided in the car or the hall, and the function is realized by software, firmware, or a combination thereof. The

landing buttons

6 and 7 are formed of dedicated hardware. Software and firmware are described as programs and are stored in memory. The processor reads out and executes the program stored in the memory, thereby realizing the functions of each unit of the group control device 1 and the respective control devices 8-1, 8-2, 8-3, and 8-4.

Description of the reference symbols

1: a group management device; 2: a disaster control operation detection unit; 3: all car door opening and closing control sections; 4: a broadcast determining section; 5: a landing button operation detection unit; 6. 7: a landing button; 8-1, 8-2, 8-3, 8-4: each control device; 9-1, 9-2, 9-3, 9-4: a door opening/closing control section; 10-1, 10-2, 10-3, 10-4: broadcast section, 13-3: a door opening/closing control part during evacuation operation; 14: a landing; 15: and a fire-resistant area inner landing.

Claims

1. An elevator, wherein, this elevator possesses:

a car having a first door provided on a first surface and a second door provided on a second surface different from the first door; and

a control device for controlling the operation of the car,

the control device controls evacuation operation of the car as follows when a disaster occurs in a building in which the elevator is installed: the first door is closed and the second door is used,

when a landing button provided in a landing is operated during the control of the evacuation operation, the operation is invalidated to maintain the closed state of the first door, and a signal indicating that the first door is not opened is output to the outside,

the car is provided with a plurality of cars,

the cars including at least a first car and a second car other than the first car,

the first car has the first door and the second door,

the second car has only the first door,

the control device controls the second car to wait for closing a door on a preset evacuation floor when a disaster occurs in a building in which the elevator is installed, and controls the first car to perform the evacuation operation using the second door while maintaining the first door in a closed state,

the control device opens the first door of the second car and maintains a closed state of the first door of the first car when a landing button provided at a landing of the evacuation floor is operated while the first car is performing the evacuation operation, and outputs the signal indicating that the first door of the first car is not opened to the outside.

2. The elevator according to claim 1,

the control device is provided with:

first individual control devices that control the first car;

a second individual control device that controls the second car; and

a group management device that collectively controls the first control devices and the second control devices,

the first car has three operation modes of a normal operation mode, a disaster control operation mode and an evacuation operation mode,

the second car has two operation modes of the normal operation mode and the disaster control operation mode,

the group management device includes:

a disaster occurrence determination unit that determines whether or not a disaster has occurred when the disaster has occurred in a building;

a disaster control operation unit that, when the disaster occurrence determination unit determines that the disaster has occurred, switches the operation mode of the first car and the second car from the normal operation mode to the disaster control operation mode for the first and second control devices, and causes the first car and the second car to perform a disaster control operation as follows: after the vehicle travels to the refuge floor and the first door is opened, the first door is closed after a predetermined time, and the vehicle waits in a closed state;

an evacuation operation unit that switches the operation mode of the first car from the disaster control operation mode to the evacuation operation mode for each of the first control devices after the disaster control operation by the disaster control operation unit is completed, and causes the first car to perform the evacuation operation;

a landing button operation detection unit that detects a landing button provided at a landing of the evacuation floor when the second car is in the disaster control operation mode and the first car is in the evacuation operation mode, the landing button operation detection unit being configured to detect an operation of the landing button; and

a car door opening/closing control unit that outputs a door opening command for opening the first doors of the first car and the second car when the landing button operation detection unit detects the operation,

each of the first controllers includes a first door opening/closing control unit that invalidates the door opening command from all of the car door opening/closing control units and maintains a closed state of the first door of the first car,

each of the second controllers includes a second door opening/closing control unit that opens the first door of the second car in accordance with the door opening command from all the car door opening/closing control units.

3. The elevator according to claim 2,

the group control device further includes an output determination unit that outputs a door opening stop guidance instruction so as to output the signal indicating that the first door of the first car is not opened when the landing button operation detection unit detects the operation,

the second control devices further include an output unit that outputs the signal indicating that the first door of the first car is not opened to the outside in accordance with the door opening stop guide command.

4. An elevator, wherein, this elevator possesses:

a control device for controlling the operation of the car,

the control device is provided with:

first individual control devices that control the first car;

a second control device for controlling the second car; and

the group management device includes:

a disaster control operation unit that, when the disaster occurrence determination unit determines that the disaster has occurred, switches the operation mode of the first car and the second car from the normal operation mode to the disaster control operation mode for the first and second control devices, and causes the first car and the second car to perform a disaster control operation as follows: after the vehicle travels to a preset evacuation floor and the first door is opened, the first door is closed after a predetermined time, and the vehicle waits in a closed state;

5. The elevator according to claim 4,

6. The elevator according to claim 5,

the output unit sends a voice message indicating that the first door of the first car is not opened as the signal from a broadcasting device.

7. The elevator according to claim 6,

the landing button is provided in a plurality of numbers,

the landing button operation detection section outputs installation position information indicating an installation position of a landing button operated among the plurality of landing buttons when detecting the operation of the landing button,

the output unit selects the second car provided at a position closest to the first car among the second cars adjacent to the operated landing button based on the installation position information from the landing button operation detection unit, and sends the voice message from the broadcasting device provided in the selected second car.