JP2010047401A - Device for controlling elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To safely evacuate elevator users from two cages when it is impossible to simultaneously land the cages arranged vertically of a double deck type elevator at two floors if an emergency such as an earthquake or an electric power failure arises. <P>SOLUTION: This device for controlling the elevator controlling the double deck type elevator is provided with an abnormality detecting section detecting an abnormality requiring the emergency stop of the cage, a means for determining whether the two cages can be landed simultaneously or not when the cage is stopped urgently due to the detection of the abnormality, a means for landing one of the cages at one floor when the two cages can not be landed simultaneously, and a means for landing the other cage at other floors after the door of the one landed cage is opened and closed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator control device, and more particularly to an elevator capable of safely evacuating elevator users in a car room in an emergency in a double deck type elevator equipped with a car having two car rooms arranged vertically. The present invention relates to a control device.

  2. Description of the Related Art Conventionally, a double deck type elevator including a passenger car having two car rooms (an upper car room and a lower car room) arranged one above the other is known.

  In such a double-deck type elevator, in the event of an emergency such as an earthquake or power outage, the car must be stopped urgently and each cab must be placed on an evacuable floor to evacuate the elevator users in each cab. Don't be.

  When the car is urgently stopped, if the two upper and lower cabs can land on the upper and lower two floors at the same time, the doors of the two cabs will be opened simultaneously and the elevator users will be evacuated from the two cabs at the same time. be able to. However, if the dimension between the upper and lower floors (floor height dimension) does not match the distance between the upper and lower cabs, the two cabs cannot be landed simultaneously.

In such a case, a method of landing two cabs one by one is described in Patent Document 1 below. According to the method described in Patent Document 1, first, one cab is landed on one floor, and an elevator user is evacuated from the one laid car. After the elevator evacuation from one car room is completed, the passenger car is raised and lowered, and the other car room is placed on the same floor as the floor where one car room was flooring, Evacuate elevator users from the car room.
Japanese Patent No. 3201082

  According to the elevator described in Patent Document 1, the floor on which one cab is landed and the floor on which the other cab is landed are the same floor. For this reason, the distance that the other car room moves after the one car room is landed until the other car room is landed is larger than the height dimension of the car room.

  When evacuating elevator passengers in the car room by urgently stopping the car, if moving the car that has been stopped once again, considering the risk of a secondary disaster, make the moving distance of the car room as small as possible. It is desirable.

  The present invention has been made to solve such a problem. The purpose of the present invention is two cases in which the upper and lower cabs cannot be simultaneously landed on two floors in an emergency such as an earthquake or a power failure. It is to improve safety when evacuating elevator users from the cab.

  A first feature according to an embodiment of the present invention is that an elevator control device that controls a double-deck elevator including a car having two car rooms arranged above and below needs to make an emergency stop of the car. An abnormality detection unit for detecting a certain abnormality, means for determining whether the two car rooms can be landed simultaneously when the abnormality is detected and the car is urgently stopped, and the two cars Means for landing one of the cabs on one floor when the rooms cannot be landed at the same time, and after the doors of one of the sheds are opened and closed, the other car Means for landing the room on another floor.

  According to the present invention, when the upper and lower cabs cannot be simultaneously landed on two floors in the event of an emergency such as an earthquake or power outage, one cab is landed on one floor and then the other Since the cab is placed on the other floor, the moving distance of the cab from the time when one cab is landed to the time when the other cab is placed becomes smaller, and The risk of a secondary disaster accompanying the movement of the cab after an emergency stop can be reduced, and the safety when evacuating an elevator user from the two cabs can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic diagram showing an overall configuration of a double deck type elevator provided with an elevator control device according to a first embodiment of the present invention.

  The double deck type elevator includes a hoistway 1 provided in a building, a machine room 2 provided in an upper part of the hoistway 1, a control device 3 and a hoisting machine 4 installed in the machine room 2. Yes. A main sheave 5 that is rotationally driven by the hoisting machine 4 is connected to the hoisting machine 4, and a main rope 7 is wound around the main sheave 5 and a deflecting sheave 6 that is arranged close to the main sheave 5. Yes. Both ends of the main rope 7 are suspended in the hoistway 1, a car 8 is connected to one end side of the main rope 7, and a counterweight 9 is connected to the other end side of the main rope 7.

  The car 8 includes a car frame 10, two car rooms (upper car room 11 and lower car room 12) which are arranged vertically and supported by the car frame 10 so as to be movable in the vertical direction, and an upper car room 11 and a lower car room. A floor adjustment mechanism 13 capable of adjusting the distance between the floor surfaces of the car room 12 and the car room 12 is provided.

  The upper cab 11 is provided with a door 14, and the lower cab 12 is provided with a door 15.

  The floor adjustment mechanism 13 is configured to raise and lower the upper cab 11 and the lower cab 12 independently. For example, a ball screw that supports the upper cab 11 and a servo motor that drives the ball screw, a ball screw that supports the lower cab 12 and a servo motor that drives the ball screw, and the like.

  FIG. 1 shows a state in which the car 8 is urgently stopped in the event of an emergency such as an earthquake or a power failure. The lower cab 12 is laid on one floor, while the upper cab 11 is There is no floor.

  FIG. 2 is a block diagram showing a configuration in which the elevator car in the cabs 11 and 12 is evacuated by urgently stopping the car 8 in an emergency such as an earthquake or a power failure. In the control device 3, an emergency control unit 16 is provided that controls the elevator 8 in the car rooms 11 and 12 to evacuate the elevator 8 in an emergency such as an earthquake or a power failure. The emergency control unit 16 is provided with an abnormality detection unit 17 for detecting an abnormality that requires an emergency stop of the car 8, and that the doors 14 and 15 are closed in the car rooms 11 and 12, respectively. A door closing detection sensor 18 for detection is connected. As the abnormality detection unit 17, for example, a seismometer, a circuit that detects that power supply has been cut off, or the like can be used. The control device 3 is connected to a hoisting machine 4, a floor adjustment mechanism 13, a door opening / closing mechanism 19 for opening and closing the doors 14, 15, etc. as equipment related to the control at the time of emergency stop of the car 8. Yes.

  FIG. 3 is a flowchart for explaining control for emergency stop of the car 8 and evacuation of the elevator user from the car rooms 11 and 12 in an emergency such as an earthquake or a power failure.

  Whether or not the abnormality detection unit 17 has detected an abnormality while the car 8 is running is determined by the emergency control unit 16 (S1), and if an abnormality is detected (YES in S1), the upper and lower two cabs The emergency controller 16 determines whether or not 11 and 12 can be landed on the nearest floor at the same time (S2). This determination is made based on whether or not the floor height of the nearest floor to be urgently stopped and the distance between the floor surfaces of the upper and lower cabs 11 and 12 match. Judgment is made (YES in S2). In this embodiment, the building where the elevator is installed has been described for the case where the floor height of the general floor is constant. For this reason, during normal operation in which the car 8 is stopped only on the general floor, no floor adjustment is performed by the floor adjustment mechanism 13, and at the time of an emergency stop, the elevator 8 has a floor for evacuation whose floor height is different from the general floor. The floor adjustment is performed as necessary when the vehicle is stopped.

  If it is determined that the upper and lower cabs 11 and 12 can land on the nearest floor at the same time (YES in S2), the upper and lower cabs 11 and 12 of the car 8 to be urgently stopped are simultaneously on the nearest floor. The doors 14 and 15 of the two cabs 11 and 12 that have been landed are opened (S4), and the doors 14 and 15 that have been opened are closed after a certain period of time (S5). Elevator users who are in the cabs 11 and 12 can evacuate outside the cabs 11 and 12 while the doors 14 and 15 are opened. In addition, when the elevator user pushes the door opening button in the cabs 11 and 12, the door opening time of the doors 14 and 15 can be extended.

  On the other hand, when it is determined that the upper and lower cabs 11 and 12 cannot be simultaneously landed on the nearest floor (NO in S2), either the upper or lower cab 11 (or 12) is landed on the nearest floor. Thus, the hoisting machine 4 is driven based on the result of the calculation, the traveling of the car 8 is stopped, and one of the car rooms 11 (or 12) is located at the nearest floor. (S6). The state at this time is, for example, the state shown in FIG.

  As shown in FIG. 1, after one of the cabs 12 has landed, the door 15 of the cab 12 is opened (S7), and the opened door 15 is closed after a predetermined time (S8). An elevator user boarding the cab 12 can evacuate outside the cab 12 while the door 15 is open. Even in this case, when the elevator user presses the door opening button in the cab 12, the door opening time of the door 15 can be extended.

  After the door is closed in step S8, based on the calculation result performed in the emergency control unit 16, the other car room 11 is the nearest floor on which the one car room 12 has landed. It is landed on another nearest floor (S9). This landing can be done by releasing the brake of the hoisting machine 4 and lowering the entire car 8, driving the hoisting machine 4 to raise or lower the entire car 8, or adjusting the floor. This is done by driving the mechanism 13 to raise and lower the car room 11.

  After the other car room 11 has landed on another nearest floor, the door 14 of the car room 11 is opened (S10), and the opened door 14 is closed after a lapse of a certain time (S11). An elevator user boarding the cab 11 can evacuate outside the cab 11 while the door 14 is open.

  In such a configuration, when the upper and lower cabs 11 and 12 cannot be landed on the nearest floor at the same time in an emergency such as an earthquake or a power failure, one of the cabs 11 of the car 8 to be urgently stopped. (Or 12) is landed on the nearest floor and the elevator user in the cab 11 (or 12) is evacuated. After the evacuation from one of the cabs 11 (or 12) is completed, the other cab 12 (or 11) is landed on the other nearest floor, and the elevator in the cab 12 (or 11). Evacuate users.

  Here, in this elevator, the nearest floor where one of the cabs 11 (or 12) first lands is different from the nearest floor where the other cab 12 (or 11) lands later. In this way, the first car room 11 (or 12) is landed on the nearest floor and then the other car room 12 (or 11) is landed on a different nearest floor, whereby the above-mentioned Patent Document 1 is described. As described, the moving distance of the other car room 12 (or 11) to be landed later is smaller than when two car rooms 11 and 12 are landed on the same floor. As a result, when the car 8 is brought to an emergency stop and one car room 11 (or 12) is landed, the other car room 12 (or 11) is moved and then landed. Risk can be reduced, and safety when evacuating elevator users can be increased.

(Second Embodiment)
An elevator control apparatus according to a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment and other embodiments thereafter, the same components as those described in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The basic configuration of the second embodiment is the same as that of the first embodiment, and the second embodiment is different from the first embodiment in that the load weight in the cabs 11 and 12 is as follows. The car is a weight on the side of the car 8 that includes the weight detecting unit 20 for detecting the vehicle weight and the emergency control unit 16 including the loaded weight detected by the weight detecting unit 20 and the weight of the car 8 itself. There are means for comparing the side weight and the weight of the counterweight 9, and means for determining which of the two cabs 11 and 12 is to be landed first based on the comparison result. As the weight detection part 20, the pressure sensor installed in the floor part of the cabs 11 and 12 can be used, for example.

  FIG. 5 is a flowchart for explaining the control for urgently stopping the car 8 and evacuating the elevator user from the cabs 11 and 12 in an emergency such as an earthquake or a power failure.

  Whether or not the abnormality detection unit 17 has detected an abnormality while the car 8 is traveling is determined by the emergency control unit 16 (S21), and if an abnormality is detected (YES in S21), the upper and lower two cabs The emergency controller 16 determines whether or not 11 and 12 can be landed on the nearest floor at the same time (S22). This determination is made based on whether or not the floor height of the nearest floor to be urgently stopped and the distance between the floor surfaces of the upper and lower cabs 11 and 12 match. Determination is made (YES in S22). In this embodiment, the building where the elevator is installed has been described for the case where the floor height of the general floor is constant. For this reason, during normal operation in which the car 8 is stopped only on the general floor, no floor adjustment is performed by the floor adjustment mechanism 13, and at the time of an emergency stop, the elevator 8 has a floor for evacuation whose floor height is different from the general floor. The floor adjustment is performed as necessary when the vehicle is stopped.

  If it is determined that the upper and lower cabs 11 and 12 can be landed on the nearest floor at the same time (YES in S22), the upper and lower cabs 11 and 12 of the car 8 to be urgently stopped are simultaneously on the nearest floor. After landing (S23), the doors 14 and 15 of the cabs 11 and 12 are opened (S24), and the opened doors 14 and 15 are closed after a predetermined time (S25). Elevator users who are in the cabs 11 and 12 can evacuate outside the cabs 11 and 12 while the doors 14 and 15 are opened.

  On the other hand, when it is determined that the upper and lower cabs 11 and 12 cannot be landed on the nearest floor at the same time (NO in S22), the weight detection unit 20 detects the loaded weight in the cabs 11 and 12 ( S26).

  After the detection of the loading weight in step S26, whether the car-side weight composed of the loading weight detected by the weight detection unit 20 and the weight of the car 8 itself is greater than the weight of the counterweight 9 is an emergency. The control unit 16 compares them (S27).

  When the car-side weight is larger than the weight of the counterweight 9 (YES in S27), the distance between the floor surfaces of the upper and lower car rooms 11, 12 is the two floors (two nearest floors) to be landed. The emergency controller 16 determines whether or not the floor height is smaller than (S28).

  If the distance between the floor surfaces of the upper and lower cabs 11 and 12 is smaller than the height of the two floors (two nearest floors) to be landed (YES in S28), the upper cab 11 is first moved. Is determined by the emergency control unit 16 to land on the nearest floor, the hoisting machine 4 is driven based on the judgment result, and the upper cab 11 is first landed on the uppermost nearest floor ( S29).

  FIG. 6A is a schematic diagram showing the state of step S29. In FIG. 6A, “X” represents the floor height of the two nearest floors to be landed, and “Y” represents the distance between the floor surfaces of the upper and lower cabs 11 and 12.

  When the distance between the floor surfaces of the upper and lower cabs 11 and 12 is larger than the floor heights of the two floors (two nearest floors) to be landed (NO in S28), the lower cab 12 first. Is determined by the emergency control unit 16 to land on the nearest floor, and the hoisting machine 4 is driven based on the judgment result, and the lower cab 12 is first landed on the nearest nearest floor. (S30).

  FIG. 6B is a schematic diagram showing the state of step S30. In FIG. 6B, “X1” represents the height of two floors to be landed, and “Y” represents the distance between the floor surfaces of the upper and lower cabs 11 and 12.

  In step S29 or S30, when the car room 11 (or 12) is landed first, the door 14 (or 15) of the car room 11 (or 12) that has landed is opened (S31), The opened door 14 (or 15) is closed after a predetermined time (S32). An elevator user who is boarding in the cab 11 (or 12) who has landed can evacuate outside the cab 11 (or 12) while the door 14 (or 15) is opened.

  After the door 14 (or 15) is closed in step S32, the car 8 is lowered as a whole, and the other car room 12 (or 11) is landed on the other nearest floor (S33).

  When the car 8 is lowered as a whole, the car-side weight is larger than the weight of the counterweight 9, so that the load acting on the hoisting machine 4 when the hoisting machine 4 is driven in the direction of lowering the car 8 is reduced. Alternatively, by releasing the brake of the hoisting machine 4, the car 8 can be lowered without driving the hoisting machine 4.

  When the other car room 12 (or 11) is landed in step S33, the door 15 (or 14) of the car room 12 (or 11) that has been landed is opened (S34), and the door is opened. 15 (or 14) is closed after a certain time (S35). An elevator user who is boarded in the cab 12 (or 11) who has landed can evacuate outside the cab 12 (or 11) while the door 15 (or 14) is opened.

  If it is determined in step S27 that the car-side weight is smaller than the weight of the counterweight 9 (NO in S27), the distance between the floor surfaces of the upper and lower car rooms 11, 12 is the two floors to be landed. The emergency control unit 16 determines whether or not the floor (the two nearest floors) is lower than the floor height (S36).

  When the distance between the floor surfaces of the upper and lower cabs 11 and 12 is smaller than the height of the two floors (two nearest floors) to be landed (YES in S36), the lower cab 12 is first moved. Is determined by the emergency control unit 16 to land on the nearest floor, and the hoisting machine 4 is driven based on the judgment result, and the lower cab 12 is first landed on the nearest nearest floor. (S37).

  FIG. 6C is a schematic diagram showing the state of step S37. In FIG. 6C, “X” represents the floor height of the two nearest floors to be landed, and “Y” represents the distance between the floor surfaces of the upper and lower cabs 11 and 12.

  When the distance between the floor surfaces of the upper and lower cabs 11 and 12 is larger than the height of the two floors (two nearest floors) to be landed (NO in S36), the upper cab 11 is first moved. Is determined by the emergency control unit 16 to land on the nearest floor, the hoisting machine 4 is driven based on the judgment result, and the upper cab 11 is first landed on the uppermost nearest floor ( S38).

  FIG. 6D is a schematic diagram showing the state of step S38. In FIG. 6D, “X1” represents the floor height of the two nearest floors to be landed, and “Y” represents the distance between the floor surfaces of the upper and lower cabs 11 and 12.

  When the car room 11 (or 12) is first landed in step S37 or S38, the door 14 (or 15) of the car room 11 (or 12) that has landed is opened (S39). The closed door 14 (or 15) is closed after a predetermined time (S40). An elevator user who is boarding in the cab 11 (or 12) who has landed can evacuate outside the cab 11 (or 12) while the door 14 (or 15) is opened.

  After the door 14 (or 15) is closed in step S40, the car 8 is raised as a whole, and the other car room 12 (or 11) is landed on the other nearest floor (S41).

  When the car 8 is raised as a whole, since the car-side weight is smaller than the weight of the counterweight 9, the load acting on the hoisting machine 4 when the hoisting machine 4 is driven in the direction of raising the car 8 is reduced. Alternatively, the car 8 can be raised without driving the hoisting machine 4 by releasing the brake of the hoisting machine 4.

  When the other car room 12 (or 11) is landed in step S41, the door 15 (or 14) of the car room 12 (or 11) that has been landed is opened (S34), and the door is opened. 15 (or 14) is closed after a certain time (S35). An elevator user who is boarded in the cab 12 (or 11) who has landed can evacuate outside the cab 12 (or 11) while the door 15 (or 14) is opened.

  The floor height of the evacuation floor other than the general floor, the distance between the floor surfaces of the upper and lower cabs 11 and 12 during normal operation, the weight of the counterweight 9, etc. are stored in the storage unit in the control device 3. Stored in advance.

  In such a configuration, when the upper and lower cabs 11 and 12 cannot be landed on the nearest floor at the same time in an emergency such as an earthquake or a power failure, the emergency stop is performed as in the first embodiment. One car room 11 (or 12) of the passenger car 8 is landed on the nearest floor, and elevator users in the car room 11 (or 12) are evacuated. After the evacuation from one of the cabs 11 (or 12) is completed, the other cab 12 (or 11) is landed on the other nearest floor, and the other cab 12 (or 11) Evacuate elevator users.

  Here, in this elevator, the nearest floor where one of the cabs 11 (or 12) first lands is different from the nearest floor where the cab 12 (or 11) lands later. In this way, the first car room 11 (or 12) is landed on the nearest floor and then the other car room 12 (or 11) is landed on a different nearest floor, whereby the above-mentioned Patent Document 1 is described. As described, the moving distance of the other car room 12 (or 11) to be landed later is smaller than when two car rooms 11 and 12 are landed on the same floor. As a result, when the car 8 is brought to an emergency stop and one car room 11 (or 12) is landed, the other car room 12 (or 11) is moved and then landed. Risk can be reduced, and safety when evacuating elevator users can be increased.

  Further, in this elevator, when the car room 11 (or 12) to be landed first is determined, the load weight in the car rooms 11 and 12 is detected and the car side weight is compared with the weight of the counterweight 9. The car room 11 (or 12) to be landed first is determined according to the comparison result. Thus, when the car room 12 (or 11) is subsequently landed, by using the difference between the car side weight and the weight of the counterweight 9, the hoist 4 is driven with a light load, Alternatively, by releasing the brake of the hoisting machine 4, the car 8 can be lowered or raised as a whole, and energy consumption required for driving the hoisting machine 4 can be reduced. In particular, when the brake of the hoisting machine 4 is released and the car 8 is lowered or raised, the elevator user is confined in the car room 11 (or 12) even when the power supply is interrupted in an emergency. Accidents can be prevented.

(Third embodiment)
The elevator control apparatus of the 3rd Embodiment of this invention is demonstrated based on FIG.7 and FIG.8.

  The basic configuration of the third embodiment is the same as that of the first embodiment, and the third embodiment is different from the first embodiment in that the interior of the cabs 11 and 12 is first. A weight detection unit 20 that detects the loaded weight and a floor-to-floor distance detection unit 21 that detects the distance between the floor surfaces of the upper and lower cabs 11 and 12 that are changed by driving the floor adjustment mechanism 13 are provided. It is. Further, the emergency control unit 16 compares the car side weight composed of the loaded weight detected by the weight detection unit 20 and the weight of the car 8 itself with the weight of the counterweight 9, and 2 A second comparison means for comparing the distance between the floor surfaces of the two cabs 11 and 12 and the heights of the two floors (two nearest floors) on which the two cabs 11 and 12 are landed; And a means for judging which of the two cabs 11 and 12 is to be landed first based on the comparison result of the first comparison means and the comparison result of the second comparison means. As the weight detection part 20, the pressure sensor installed in the floor part of the cabs 11 and 12 can be used, for example.

  FIG. 8 is a flowchart for explaining control for emergency stop of the car 8 and evacuation of the elevator user from the car rooms 11 and 12 in an emergency such as an earthquake or a power failure. The basic contents of the control are the same as those in the flowchart (FIG. 5) described in the second embodiment, and the description of the same parts as those in FIG. 5 is omitted.

  In addition, the building where this elevator is installed has a part with different floor height in a general floor. For this reason, the floor adjustment by the floor adjustment mechanism 13 is performed as necessary even during normal operation in which the car 8 stops only at the general floor.

  Whether or not the abnormality detection unit 17 has detected an abnormality while the car 8 is traveling is determined by the emergency control unit 16 (S21), and if an abnormality is detected (YES in S21), the upper and lower two cabs The emergency controller 16 determines whether or not 11 and 12 can be landed on the nearest floor at the same time (S22).

  If it is determined that the upper and lower cabs 11 and 12 can land on the nearest floor at the same time (YES in S22), then the control in steps S23 to S25 is performed.

  On the other hand, when it is determined that the upper and lower cabs 11 and 12 cannot be simultaneously landed on the nearest floor (NO in S22), the weight detection unit 20 detects the loaded weight in the cabs 11 and 12 (S26). Further, the distance between the floor surfaces of the upper and lower cabs 11 and 12 is detected by the distance detector 21 between the floor surfaces (S50).

  After the detection in step S26 and the detection in step S50, the car-side weight composed of the loaded weight detected by the weight detection unit 20 and the weight of the car 8 itself is larger than the weight of the counterweight 9. Is compared in the emergency control unit 16 (S27).

  Furthermore, after the comparison in step S27 is performed, whether or not the distance between the floor surfaces of the upper and lower cabs 11 and 12 is smaller than the floor height of the two floors (two nearest floors) to be landed. Is determined by the emergency control unit 16 (S28, S36).

  The car-side weight is greater than the weight of the counterweight 9 (YES in S27), and the distance between the floor surfaces of the upper and lower cabs 11 and 12 is higher than the floor height of the two floors (two nearest floors) to be landed. If it is smaller (YES in S28), the emergency controller 16 first determines that the upper cab 11 is to be landed on the nearest floor, and the hoisting machine 4 is driven based on the determination result. The upper cab 11 is landed on the uppermost nearest floor (S29). The state in this case is, for example, as shown in FIG. In FIG. 6, during normal operation in which the car 8 is stopped only on the general floor, the floor adjustment by the floor adjustment mechanism 13 is not performed, and the car 8 is the distance between floor surfaces of the car rooms 11 and 12. Although it is assumed that Y "is kept constant, in the third embodiment, the distance between floor surfaces" Y "is required even during normal operation in which the car 8 is stopped only on the general floor. It changes according to.

  Next, the weight of the car side is larger than the weight of the counterweight 9 (YES in S27), and the distance between the floor surfaces of the upper and lower car rooms 11 and 12 of the two floors (two nearest floors) to be landed is If it is greater than the floor height (NO in S28), the emergency control unit 16 first determines that the lower cab 12 is to be landed on the nearest floor, and the hoist 4 is driven based on the determination result. First, the lower cab 12 is landed on the nearest lower floor (S30). The state in this case is, for example, as shown in FIG.

  If the car room 11 (or 12) is landed first in step S29 or S30, then control in steps S31 to S35 is performed.

  In step S33, when the car 8 is lowered as a whole, the car-side weight is larger than the weight of the counterweight 9, and therefore acts on the hoisting machine 4 when the hoisting machine 4 is driven in the direction of lowering the car 8. The load can be reduced, or the car 8 can be lowered without driving the hoisting machine 4 by releasing the brake of the hoisting machine 4.

  Next, the weight of the car side is smaller than the weight of the counterweight 9 (NO in S27), and the distance between the floor surfaces of the upper and lower car rooms 11, 12 is that of the two floors (two nearest floors) to be landed. If it is smaller than the floor height (YES in S36), the emergency controller 16 first determines that the lower cab 12 is to be landed on the nearest floor, and the hoist 4 is driven based on the determination result. First, the lower cab 12 is landed on the nearest lower floor (S37). The state in this case is, for example, as shown in FIG.

  Next, the weight of the car side is smaller than the weight of the counterweight 9 (NO in S27), and the distance between the floor surfaces of the upper and lower car rooms 11, 12 is that of the two floors (two nearest floors) to be landed. If it is greater than the floor height (NO in S36), the emergency controller 16 first determines that the upper cab 11 is to be landed on the nearest floor, and the hoist 4 is driven based on the determination result. First, the upper cab 11 is landed on the nearest floor on the upper side (S39). The state in this case is, for example, as shown in FIG.

  If the car room 11 (or 12) is first landed in step S37 or S38, then control in steps S39 to S41 and steps S34 and S35 is performed.

  In such a configuration, when the upper and lower cabs 11 and 12 cannot be landed on the nearest floor at the same time in an emergency such as an earthquake or a power failure, the emergency stop is performed as in the first embodiment. One car room 11 (or 12) of the passenger car 8 is landed on the nearest floor, and elevator users in the car room 11 (or 12) are evacuated. After the evacuation from one of the cabs 11 (or 12) is completed, the other cab 12 (or 11) is landed on the other nearest floor, and the other cab 12 (or 11) Evacuate elevator users.

  Here, in this elevator, the nearest floor where one of the cabs 11 (or 12) first lands is different from the nearest floor where the cab 12 (or 11) lands later. In this way, the first car room 11 (or 12) is landed on the nearest floor and then the other car room 12 (or 11) is landed on a different nearest floor, whereby the above-mentioned Patent Document 1 is described. As described, the moving distance of the other car room 12 (or 11) to be landed later is smaller than when two car rooms 11 and 12 are landed on the same floor. As a result, when the car 8 is brought to an emergency stop and one car room 11 (or 12) is landed, the other car room 12 (or 11) is moved and then landed. Risk can be reduced, and safety when evacuating elevator users can be increased.

  Further, in this elevator, when the car room 11 (or 12) to be landed first is determined, the load weight in the car rooms 11 and 12 is detected and the car side weight is compared with the weight of the counterweight 9. And, the distance between the floors of the car rooms 11 and 12 is compared with the height of the nearest floor to be landed, and the car room 11 (or 12) to be landed first is determined according to the comparison result. ing. For this reason, even in an elevator that changes the distance between the floor surfaces of the cabs 11 and 12 by the floor adjustment mechanism 13 during normal operation, when the cab 12 (or 11) is subsequently landed, Using the difference between the side weight and the weight of the counterweight 9, the car 8 is lowered as a whole by driving the hoisting machine 4 with a light load or by releasing the brake of the hoisting machine 4. The energy consumption required for driving the hoisting machine 4 can be reduced. In particular, when the brake of the hoisting machine 4 is released and the car 8 is lowered or raised, even if the power supply is interrupted in an emergency, the elevator user is trapped in the car room 11 (or 12). Can be prevented.

1 is a schematic diagram illustrating an overall configuration of a double deck type elevator including an elevator control device according to a first embodiment of the present invention. It is a block diagram which shows the structure which carries out the emergency stop of the passenger car at the time of emergency, such as an earthquake and a power failure, and evacuates the elevator user in a passenger compartment. It is a flowchart explaining the control which makes an emergency stop of a car at the time of emergency, such as an earthquake and a power failure, and evacuates an elevator user from a car room. It is a block diagram which shows the structure in the elevator control apparatus of the 2nd Embodiment of this invention which carries out emergency stop of the car at the time of emergency, such as an earthquake and a power failure, and evacuates the elevator user in a cab interior. In 2nd Embodiment, it is a flowchart explaining the control which carries out the emergency stop of a passenger car at the time of emergency, such as an earthquake and a power failure, and evacuates an elevator user from a cab interior. It is a schematic diagram which shows the positional relationship with the nearest floor where two cabs and a cab are landed. It is a block diagram which shows the structure in the elevator control apparatus of the 3rd Embodiment of this invention which carries out the emergency stop of the passenger car at the time of emergency, such as an earthquake and a power failure, and evacuates the elevator user in a cab interior. In 3rd Embodiment, it is a flowchart explaining the control which makes an emergency stop of a passenger car at the time of emergency, such as an earthquake and a power failure, and evacuates an elevator user from a cab interior.

Explanation of symbols

4 Lifting machine 8 Car 11, 12 Car room 13 Floor adjustment mechanism 14, 15 Door 17 Abnormality detection unit 20 Weight detection unit 21 Inter-floor distance detection unit

Claims (5)

In an elevator control device for controlling a double deck type elevator having a car having two car rooms arranged above and below,
An anomaly detector that detects an anomaly that requires the car to be urgently stopped;
Means for determining whether the two car rooms can be landed simultaneously when the abnormality is detected and the car is urgently stopped;
Means for landing one of the cabs on one floor when the two cabs cannot be landed simultaneously;
Means for landing the other cab on the other floor after the door of one of the cabs has been opened and closed;
An elevator control device comprising: A weight detector for detecting a load weight in the car room;
Means for comparing a car side weight composed of the loaded weight detected by the weight detector and the weight of the car itself, and a weight of a counterweight connected to the car via a main rope;
Means for determining which of the two cabs is to be landed first based on a comparison result by the means for comparing;
The elevator control device according to claim 1, further comprising: A floor adjustment mechanism capable of adjusting a distance between floor surfaces of the two cabs;
A floor-to-floor distance detector for detecting a distance between the floors of the two cabs;
A weight detector for detecting a load weight in the car room;
A first comparing means for comparing a car-side weight composed of the loaded weight detected by the weight detection unit and the weight of the car itself and a weight of a counterweight connected to the car via a main rope; ,
A second comparison means for comparing a distance between floor surfaces of the two cabs and a floor height of two floors on which the two cabs are landed;
Means for determining which of the two cabs is to be landed first based on the comparison result by the first comparison means and the comparison result by the second comparison means;
The elevator control device according to claim 1, further comprising:   The other means for landing the car room on another floor is a hoisting machine for raising and lowering the car, wherein the weight of the car side on the car side and the weight of the counterweight is larger. 4. The elevator control device according to claim 2, wherein the elevator control device is driven so as to be lowered.   The other means for landing the car room on another floor releases the brake of the hoisting machine that raises and lowers the car, and the weight of the car side weight on the car side and the weight of the counterweight The elevator control device according to claim 2 or 3, wherein the lower one is lowered.

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