JP6696520B2 - elevator - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an elevator that promptly rescues passengers who are left in the elevator car and stopped at the nearest floor or the evacuation floor in an emergency.

  BACKGROUND 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 that stopped at the nearest floor opens the door, and announces and displays information to urge the car to go out and turn off the lights inside the car. After that, when a predetermined time elapses, the door is closed and the operation suspension state is continued until the maintenance work by the maintenance staff is completed.

  In addition, 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.

Further, an elevator having means for displaying presence / absence of passengers in a car at a resting floor of a resting floor, means for opening a door by pushing a hall button switch, and means for opening a door from a monitoring room has been proposed. (For example, patent document 1).

  In a conventional elevator, it is necessary for a passenger left behind in the car to push the door open button switch in order to escape from the car by himself.

JP-A-61-169470

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

  Therefore, an object of the present invention is to provide an elevator that can promptly rescue passengers left in the car of the elevator that have been out of 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 A door open position detecting means for detecting that the car is a door of the car door by the door open position detecting means. When it is detected that the car is in a position where opening is permitted, the car is equipped with emergency notification means for opening the car door to open the doorway.

According to the above configuration, the passenger left in the car of the elevator that has stopped operation in an emergency notifies the outside of the car of the emergency state by the emergency notification means, and the car is detected by the door open position detection means. When it is detected that the car door is at a position where the car door is allowed to open, the car door can be opened to open the doorway, and the car can be quickly escaped to the outside. This is because it is considered that the passenger in the car first operates the emergency notification means in an emergency according to the description on the guidance display installed near the emergency notification means.

Further, the elevator according to the present invention controls a door opening button switch provided in the car and a button switch group including the door opening button switch, and communicates with the elevator control unit via a first communication unit. A button switch control unit, and the emergency notification means, when the communication between the elevator control unit and the button switch control unit is interrupted, the car door may be opened and the doorway may be opened. Good.

  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, it is left behind in the car of the elevator. Since the passengers can escape to the outside of the car by themselves, the passengers can be quickly rescued.

Further, the elevator according to the present invention may be configured such that the emergency notification means communicates with the elevator control section via a second communication means different from the first communication means.

  According to the above configuration, since the first communication means and the second communication means are different communication paths, even if the first communication means has a communication interruption, the emergency notification means and the elevator control section are connected via the second communication means. Since communication is possible and passengers left behind in the elevator car can open the car door themselves and escape to the outside of the car, the passengers can be quickly rescued.

Further, the elevator according to the present invention may have a configuration in which the car is stopped at the nearest floor and paused by a control operation when communication between the elevator control unit and the button switch control unit is interrupted.

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

  According to the elevator of the present invention, it is possible to provide an elevator that can promptly rescue passengers left in the car of the 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 a flow chart which showed a series of processings which an elevator in a 1st embodiment of the present 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 each embodiment, the same components are designated by the same reference numerals and the 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 raises and lowers 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 platform, and is closed and opened by the car door 11. The car door drive device 15 is provided at the upper part of the car room 52 on the landing side. The car door drive device 15 is controlled to open and close the car door 11 by the car door control unit 12 provided at 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 landing hall 10 is provided with an entrance / exit opening provided so as to communicate with the entrance / exit entrance of the car when the car 5 is landed, and is closed and opened by the landing door 13. When the car 5 is landed, the landing door 13 engages with the car door 11 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 are 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 denotes a door open 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 open position detecting 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 in the car 5 detects the plate installed in 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 in-car operating device 18 includes a destination floor registration button switch 19, a door opening button switch 20, and an emergency notification means 21. Further, the car 5 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 into the car 5 and registers the destination floor. FIG. 2 shows a case in which a button switch for registering the first floor and a button switch for registering the 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. Then, the elevator control unit 3 issues a drive command to the elevator drive device 4, and moves 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. A hall where the elevator control unit 3 communicates with the car door control unit 12, the car door control unit 12 issues a door opening command to the car door driving device 15, and the car door 11 and the car door 11 are engaged. Open the door 13.

  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, it becomes possible to talk with 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 means 23 and the second communication means 24 are, for example, composed of electric wires covered with an insulating material.

In this embodiment, when the emergency communication means 21 is operated, the other party can make a situation explanation or a rescue request to the outside of the car 5 (for example, a management room or a monitoring center of a maintenance company) by an intercom. In addition to issuing a signal to notify that an emergency has occurred outside the car 5, a signal that the emergency communication means 21 has been operated is also sent via the second communication means 24 to the elevator control unit 3 When it is detected by the door opening position detection means that the car is in a position where the door opening of the car is permitted, 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 open the car door 11 and the landing door 13 engaged with the car door 11.

  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, because 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, since the first communication unit 23 and the second communication unit 24 are different, some kind of failure 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. Even if the door opening button switch 20 connected to the button switch control unit 20 cannot open the car door 11 and the landing door 13 engaged with the car door 11, the emergency notification means 21 is operated. By doing so, it is possible to open the car door 11 and the landing door 13 that engages with the car door 11.

[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. In addition, such a series of processes may be realized by causing the elevator control unit 3 and 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 is disconnected (step S61 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 based on the detection status of the door open position detection means 14 (Fig. 3 step S62).

Further, when it is determined that the car 5 is at the door open permission position (YES), it is determined whether the emergency notification means 21 has been operated (step S63 in FIG. 3).

  When the emergency notification means 21 is operated (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 causes the car door drive device 15 to operate. By driving, the car door 11 and the landing door 13 that engages with the car door 11 are opened (step 64 in FIG. 3).

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

According to the processing 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 is opened. 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 car is in the closed position, the car door 11 and the landing door 13 that engages with the car door 11 can be opened by operating the emergency notification means 21. It is possible to reduce the possibility that passengers of the vehicle will be trapped in the car 5.

[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 photographed 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-described embodiment, and various cameras and sensors may be included as long as they have an action capable of determining 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. An extraction processing unit (not shown) provided in the elevator control unit 3 processes the transmitted captured image to extract the passenger's motion from the captured image. For example, the extraction processing unit extracts a region 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 region.

  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 both the load detection device 16 and the passenger detection means 17 can determine the presence / 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 S71 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 based on the detection status of the door open position detection means 14 (Fig. 5 step S72).

Further, when it is determined that the car 5 is at the door open permission position (YES), it is determined whether the emergency notification means 21 has been operated (step S73 in FIG. 5).

  When the emergency notification means 21 is operated (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 turns on the car door drive device 15. By driving, the car door 11 and the landing door 13 that engages with the car door 11 are opened (step 74 in 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 75 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 76 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. When it is detected that the car is in the closed position, the car door 11 and the landing door 13 that engages with the car door 11 can be opened by operating the emergency notification means 21. It is possible to reduce the possibility that passengers of the vehicle will be trapped in the car 5. Furthermore, after the car door 11 and the landing door 13 that engages with the car door 11 are opened, it is determined that there are no passengers in the car 5 and the door is closed. It is possible to prevent passengers from boarding.

[3] Other Embodiments In the above-described first and second embodiments, the description has been given with reference to the figure (2 stop) 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 first and second embodiments, it is determined in step 62 of FIG. 3 and step 72 of FIG. 5 whether the car 5 is in the door open permission position, and then, step 63 of FIG. 3 and step of FIG. It is judged in 73 whether or not the emergency notification means 21 is operated. However, before it is judged whether or not the car 5 is in the door open permission position (steps 62 and 72), the emergency notification means 21 is operated. It may be determined whether or not (steps 63 and 73).

  In the second embodiment, it is confirmed in step 75 of FIG. 5 that there are no passengers in the car 5, but the passengers in the car 5 are in a normal driving state (a state in which there is no communication interruption of the first communication means). The presence or absence of may be checked.

  The description of the above embodiments is to 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 Balance weight 7 Rope 8 Car rail 9 Balance 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 Car 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 (3)

An elevator that raises and lowers cars between halls provided on multiple floors in response to hall calls and car calls,
An elevator controller that controls the raising and lowering of the car,
A car door that opens and closes at least one entrance provided in the car;
A car door controller that controls opening and closing of the car door based on a command from the elevator controller,
A door opening position detecting means for detecting that the car is in a position where the door opening of the car is permitted,
Have
When the car is operated to report an emergency condition to the outside of the car, and the door opening position detecting means detects that the car is in a position where the car door is allowed to open, ingredients to give a very Problem means the door by the door-opening to open the entrance opening in said cage,
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
The emergency notification means,
When communication between the elevator control unit and the button switch control unit is interrupted, the car door is opened to open the doorway,
elevator. The emergency notification means,
Communicating with the elevator controller via a second communication means different from the first communication means,
The elevator according to claim 1 . 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 by control operation,
The elevator according to claim 1 or 2 .